| License Number | Company | Address | Expire Date | Telephone | License Description |
|---|---|---|---|---|---|
| TA10070-0 | A.G.I. Geotechnical, Inc. | 7247 Hayvenhurst Ave., Unit A-2, Van Nuys, CA, 91406 | 9/1/2026 | (818) 785-5244 | Soils |
| TA10191-0 | AESCO, Inc. | 17782 Georgetown Lane, Huntington Beach, CA, 92647 | 12/1/2026 | (714) 375-3830 | Concrete, Rebar, Stranded Cable, Soils |
| TA10034-0 | AGE Engineering | 237 South Lamer Street, Burbank, CA, 91506 | 2/1/2026 | (818) 842-7343 | Soil Only |
| TA10130-0 | AP Engineering & Testing, Inc. | 2607 Pomona Blvd., Pomona, CA, 91768 | 5/1/2026 | (909) 869-6316 | Soils |
| TA22192-0 | APA-The Engineered Wood Association | 7011 S. 19th Street, Tacoma, WA, 98466 | 6/1/2026 | (253) 620-6600 | Testing & Grading of Wood Structural Panels, Glue Lams, I-Joists and Structural Assemblies |
| TA10005-0 | Accu-Test Structural Laboratories, Inc. dba Blue Stallion Corporation DBA Blue Stallion Corporation | 23915 Ventura Bl, Calabasas, CA, 91302 | 1/1/2026 | (818) 591-3555 | Physical Testing |
| TA24136-0 | Accurate Weld Testing Lab, Inc. | 5451 Business Drive, Huntington Beach, CA, 92649 | 10/1/2026 | (714) 373-3852 | Weld & Welder Performance Testing: Structural Steel, Light Gauge, Aluminum, Rebar, Stainless Steel, Nondestructive Testing: Radiographic Testing |
| TA10218-0 | Advanced Environmental Group, Inc. dba Environmental Support Technologies | 8 Goodyear, Suite 125, Irvine, CA, 92618 | 12/1/2025 | (949) 361-7797 | Mobile Field Testing Agency for Gas, Methane and Soils |
| TA10064-0 | Advanced Geotechnical Services, Inc | 5251 Verdugo Way, Suite L, Camarillo, CA, 93012 | 2/1/2026 | (805) 388-6162 | Soils Test |
| TA24789-0 | Advanced Geotechniques | 3467 Ocean View Blvd., Suite C, Glendale, CA, 91208 | 11/1/2026 | (818) 549-0330 | Field Testing: Soils & Methane |
| TA24831-0 | Advanced Materials Testing, LLC. | 14428 Hamlin Street, Suite 300, Van Nuys, CA, 91401 | 10/1/2026 | (818) 923-5800 | Soils |
| TA10222-0 | Albus & Associates, Inc. | 1011 N. Armando Street, Anaheim, CA, 92806 | 11/1/2026 | (714) 630-1626 | Soils & Aggregate Base Testing |
| TA25059-0 | All American Material Testing, LLC | 790 W. Basin Street #6, San Pedro, CA, 90731 | 4/1/2026 | (310) 415-2898 | Concrete, Mortar, Grout, Rebar |
| TA10192-0 | Allan E. Seward Engineering Geology, Inc. | 27825 Smyth Drive, Valencia, CA, 91355 | 6/1/2026 | Soils Testing | |
| TA24884-0 | Alta California Geotechnical, Inc. | 170 N. Maple Street, Ste 108, Corona, CA, 92878 | 8/1/2026 | (951) 509-7090 | Soils |
| TA10215-0 | American Analytics, Inc. | 9765 Eton Avenue, Chatsworth, CA, 91311 | 4/1/2026 | (818) 998-5547 | Methane |
| TA24833-0 | American Engineering Laboratories, Inc. | 205 W. La Habra Blvd., La Habra, CA, 90631 | 11/1/2026 | (562) 322-5698 | Concrete, Grout, Masonry, Mortar, Rebar, Soils, Welding:NDT (MT, PT, RT, UT, VT) |
| TA24617-0 | American Geotechnical | 22725 Old Canal Road, Yorba Linda, CA, 92887 | 5/1/2026 | (714) 685-3900 | Concrete, Soils |
| TA24896-0 | Anbessaw Consulting Inc. dba The Quality Firm | 177 University Parkway, Pomona, CA, 91768 | 2/1/2026 | (562) 386-7131 | Anchors, Concrete, Fireproofing, Mortar, Masonry, NDT(MT,PT,UT), Shotcrete, Soils: Field Testing Only |
| TA25012-0 | Andersen Integrated Services Inc. | 10020 National Blvd., Los Angeles, CA, 90034 | 6/1/2026 | (310) 854-5453 | Methane Field Testing |
| TA00282-0 | Antelope Valley College | 3041 W. Avenue K, Lancaster, CA, 93536 | 10/1/2026 | (661) 722-6300 | Welder Performance Testing: Structural Steel & Light Gauge |
| TA24715-0 | Applied Soil Technology dba C.M. Applied Earth Sciences | 312 Western Avenue, Unit A, Glendale, CA, 91201 | 4/1/2026 | (818) 552-6000 | SOILS AND METHANE TESTING |
| TA10003-0 | Apprentice & Journeyman Training Trust Fund dba: Southern CA Plumbing & Piping Industry | 18349 S Figueroa St, Gardena, CA, 90248 | 1/1/2026 | (310) 604-0892 | Welder Performance Testing for Manual and Semi-Automatic Processes |
| TA23130-0 | Associated Soils Engineering, Inc. | 2860 Walnut Avenue, Signal Hill, CA, 90755 | 11/1/2026 | (562) 426-7990 | Soils, Asphalt, Concrete |
| TA24814-0 | Atlas Technical Consultants, LLC | 534 23rd Avenue, Oakland, CA, 94606 | 5/1/2026 | (510) 436-7626 | Nondestructive Testing, Structural Connections, Welder Performance Testing |
| TA00273-0 | BAGG Engineers | 138 Charcot Ave., San Jose, CA, 95131 | 1/1/2026 | (650) 852-9133 | SOILS/COMPACTION, MASONRY, CONCRETE, REBAR, STRUCTURAL STEEL NDT TESTING. |
| TA00309-0 | BWI | 4187 East State Street, Montclair, CA, 91763 | 8/1/2026 | (909) 561-8672 | Welder Performance Testing for D1.1, D1.2, D1.3, D1.4, D1.6 and D1.8 |
| TA24796-0 | Bay City Geology, Inc. | 24736 Calvert St., Woodland Hills, CA, 91367 | 7/1/2026 | (310) 429-6681 | Field Testing of Soils |
| TA24695-0 | Blackrock Consulting Corp. | 29134 Roadside Dr., #103-E, Agoura Hills, CA, 91301 | 4/1/2026 | (818) 723-8271 | Soils |
| TA10066-0 | Byer Geotechnical, Inc. | 1461 E. Chevy Chase Drive #200, Glendale, CA, 91206 | 2/1/2026 | (818) 549-9959 | Soils |
| TA10115-0 | C. L. Geosolutions, Inc. | 9428 Eton Ave., Unit M, Chatsworth, CA, 91311 | 4/1/2026 | (818) 341-1899 | Soils |
| TA10111-0 | C.E.M. Lab Corp. | 45 Post, Irvine, CA, 92618 | 7/1/2026 | (949) 502-4130 | Resin Epoxies, Fireproofing Density, Rebar, Soil, Compression Strength: Concrete, Grout, & Mortar |
| TA24807-0 | CCI Partners, Inc. dba: Pyramid Testing | 8145 Secura Way, Santa Fe Springs, CA, 90670 | 10/1/2026 | (424) 263-5955 | Concrete, Fireproofing, FRP, Grout, Mortar, PT Cables, Rebar, Unreinforced Masonry, In-Place Shear |
| TA24858-0 | CPP, Inc. | 7365 Greendale Road, Windsor, CO, 80550 | 12/1/2026 | Boundary-Layer Wind Tunnel Testing | |
| TA24848-0 | CTM Welding | 1345 N. Dynamics St., #A, Anaheim, CA, 92806 | 7/1/2026 | (714) 577-9353 | Welder Performance Testing D1.1, D1.3 and 1.6 |
| TA10176-0 | Cal Land Engineering & Associates, Inc. | 574 E. Lambert Road, Brea, CA, 92821 | 12/1/2026 | (714) 671-1050 | Soils |
| TA24568-0 | CalMat / Vulcan Materials Company | 16009 E Foothill Blvd, Irwindale, CA, 91706 | 4/1/2026 | (626) 856-6190 | Concrete Design Mix, Aggregate Testing |
| TA23200-2 | CalPortland | 590 E. Live Oak Ave., Irwindale, CA, 91706 | 2/1/2026 | (626) 852-6239 | Concrete Mix Designs |
| TA23200-0 | CalPortland Company | 9350 Oak Creek Road, Mojave, CA, 93501 | 2/1/2026 | (661) 823-3777 | Cement Testing |
| TA23200-1 | CalPortland Company | 11115 Casa Grande Hwy, Rillito, AZ, 85654 | 2/1/2026 | (520) 682-2221 | Cement Testing |
| TA23200-4 | CalPortland Company | 19409 National Trails Hwy, Oro Grande, CA, 92368 | 2/1/2026 | (626) 852-6239 | Cement Testing |
| TA10076-0 | CalWest Geotechnical dba LC Eng. Group, Inc. | 889 Pierce Court, #101, Thousand Oaks, CA, 91360 | 8/1/2026 | (818) 991-7148 | Soils Testing |
| TA24779-0 | California Testing & Inspections Inc. | 15957 Vermont Ave., Paramount, CA, 90723 | 3/1/2026 | (213) 748-4900 | TESTING AGENCY (SOIL / CONCRETE / MASONRY / GROUT / MORTAR / REBAR) |
| TA24821-0 | California Welding Institute | 32081 Corydon Street, Lake Elsinore, CA, 92530 | 8/1/2026 | (951) 536-3809 | Welder Performance Testing: D1.1, D1.2, D1.3, D1.6 |
| TA10030-0 | Callahan & Norrell, Inc. dba: NORCAL Engineering | 10641 Humbolt Street, Los Alamitos, CA, 90720 | 10/1/2026 | (562) 799-9469 | Soils Testing |
| TA24889-0 | Caltech-Labs, Inc. | 420 W Lambert Road, Suite D, Brea, CA, 92821 | 7/1/2026 | (714) 255-2900 | Concrete, Grout, Mortar and Rebar |
| TA24379-0 | Carpenters J.A.T.C. dba Southwest Carpenters Training Fund | 10015 Rose Hills Rd., Suite #200, Whittier, CA, 90601 | 3/1/2026 | (562) 699-0419 | Welder Certification, SSW, LGS, (Manual & Semi Automatic) |
| TA23197-0 | Cemex Construction Materials Pacific LLC | 16888 North 'E' Street, Victorville, CA, 92394 | 3/1/2026 | (760) 646-5026 | Cement Testing |
| TA24945-0 | Center for Building Innovation | 6300 Enterprise Lane, Madison, WI, 53719 | 6/1/2026 | (608) 310-6739 | Mechanical & Structural Testing: Concrete, Fiber Reinforced Polymers, Plastics, Steel, Wood |
| TA24168-0 | Cerritos Community College | 11110 E Alondra Bl, Norwalk, CA, 90650 | 3/1/2026 | (562) 860-2451 | Welder Performance Testing |
| TA24861-0 | Citadel EHS | 1725 Victory Blvd., Glendale, CA, 91201 | 8/1/2026 | (818) 246-2707 | Field testing only of methane |
| TA02222-0 | City of Los Angeles - Dept of General Services | 2319 Dorris Place, Los Angeles, CA, 90031 | 7/1/2026 | (213) 485-2242 | Concrete, Masonry, Soils, Steel |
| TA24573-0 | City of Los Angeles - Dept. of Water and Power | 510 E. 2nd St., Los Angeles, CA, 90012 | 4/1/2026 | Concrete, Soils | |
| TA24455-0 | College Of The Canyons/Santa Clarita Community College | 26455 Rockwell Canyon Rd, Santa Clarita, CA, 91355 | 3/1/2026 | (661) 259-7800 | Welding Testing |
| TA12117-0 | Converse Professional Group | 717 S. Myrtle Ave, Monrovia, CA, 91016 | 7/1/2026 | (626) 930-1200 | Aggregate, Concrete, Fireproofing, High Strength Bolts, Masonry, Rebar, Soils, Methane Field Testing |
| TA10211-0 | DL Science, Inc. | 532 W. Maple Avenue, El Segundo, CA, 90245 | 1/1/2026 | (818) 731-9644 | Field Testing: Methane |
| TA10174-0 | David H. Lee & Associates, Inc. | 23011 Moulton Pkwy. Suite D-12, Laguna Hills, CA, 92653 | 10/1/2026 | (949) 461-5690 | Soils Testing |
| TA10199-0 | David T. Hamilton & Associates, Inc. dba: Hamilton & Associates, Inc. | 1641 Border Ave, Torrance, CA, 90501 | 7/1/2026 | (310) 618-2190 | Soils Testing & Concrete Cylinders |
| TA24733-0 | Decisive Testing, Inc | 4735 Myrtle Avenue, San Diego, CA, 92105 | 11/1/2026 | (619) 285-9006 | Chemical Analysis, Non-Destr. & Metallurgical Testing, Welder & Weld Certs For Struct., Light GA., Rebar Welding |
| TA10225-0 | Dick Nigra Inspections, Inc. | 4735 Oakado Place, La Canada, CA, 91011 | 7/1/2026 | (818) 957-2759 | Anchors, Concrete, Grout, Mortar, Fireproofing, Steel Nondestructive Testing (UT, MT, PT) |
| TA10225-1 | Dick Nigra Inspections, Inc. | 48940 Three Points Road, Lake Hughes, CA, 92411 | 7/1/2026 | Anchors, Concrete, Fireproofing, Grout, Mortar | |
| TA25010-0 | Driving Hope Foundation dba South Bay Career Academy | 1491 E. 28th St., Signal Hill, CA, 90755 | 4/1/2026 | (310) 971-7656 | Structural Steel Welder Performance Testing |
| TA24952-0 | Dynamic Education | 750 W. Battery St., San Pedro, CA, 90731 | 8/1/2026 | (424) 264-5622 | Welder Performance Testing: D1.1, D1.2, D1.6 |
| TA10207-0 | EFI Global | 317 South Isis Avenue #207, Inglewood, CA, 90301 | 10/1/2026 | (310) 854-6300 | Methane (Field Only) |
| TA10109-0 | EGLAB, Inc. | 11819 Goldring Road, Unit D, Arcadia, CA, 91006 | 6/1/2026 | Soils Only | |
| TA24909-0 | ENGEO Inc. | 27742 Hancock Parkway, Valencia, CA, 91355 | 8/1/2026 | (916) 833-3083 | Concrete & Soils |
| TA25112-0 | ERJ Inspections Inc. | 7366 Piute Creek Drive, Corona, CA, 92881 | 5/1/2026 | (951) 427-0646 | Concrete, Grout |
| TA24810-0 | Earth Mechanics, Inc. | 17800 Newhope Street, Ste. B, Fountain Valley, CA, 92708 | 10/1/2026 | (714) 751-3826 | Soils |
| TA10062-0 | Earth Systems Pacific | 2122 E. Walnut Street, Suite 200, Pasadena, CA, 91107 | 12/1/2025 | (626) 356-0955 | CONCRETE/MASONRY/SOILS/STEEL/REBAR |
| TA24885-0 | El Camino Community College | 16007 Crenshaw Blvd, Torrance, CA, 90506 | 12/1/2025 | (310) 660-3593 | Welder Performance Testing for D1.1 and D1.3 |
| TA24824-0 | FDC & Associates Corporation | 322 W. Orange Show Lane, San Bernardino, CA, 92408 | 3/1/2026 | (909) 388-7200 | Soils |
| TA24338-0 | FM Approvals LLC | 743 Reynolds Road, West Glocester, RI, 92814 | 7/1/2026 | (401) 567-5000 | Fire Tests, Label Service and Roof Assemblies |
| TA24871-0 | FTL, Inc., dba: Fenestration Testing Laboratory, Inc. | 10235 8th Street, Rancho Cucamonga, CA, 91730 | 10/1/2026 | (909) 477-4343 | Fenestration Testing |
| TA10219-0 | Feffer Geological Consulting | 1990 S. Bundy Drive, Suite 400, Los Angeles, CA, 90025 | 10/1/2026 | (310) 207-5048 | Field Soil Compaction Testing |
| TA24862-0 | Fenagh Engineering and Testing, LLC | 9070 Center Ave, Rancho Cucamonga, CA, 91730 | 10/1/2026 | (909) 587-6374 | Asphalt, Aggregate, Compaction, Concrete, Fireproofing, Masonry, Mix Designs, Rebar, Steel NDT (MT, PT, UT, VT) and Soils |
| TA10018-1 | Field Ironworkers Apprenticeship and Training | 15488 Arrow Route, Fontana, CA, 92335 | 5/1/2026 | (714) 228-9744 | Welder Performance Testing - Manual and Semi Automatic LWS, RB, SHST, AL and SST |
| TA10018-0 | Field Ironworkers Apprenticeship and Training Program | 5555 Fresca Drive, La Palma, CA, 90623 | 5/1/2026 | (714) 228-9744 | Welder Performance Testing - Manual and Semi Automatic LWS, RB, SHST, AL and SST |
| TA24892-0 | Francis Krahe & Associates, Inc. | 304 South Broadway Suite 203, Los Angeles, CA, 90013 | 4/1/2026 | Field Testing of Lighting: BUG/Intensity/Luminance/Trespass | |
| TA10228-0 | Fransen Inspection Technology | 2815 Junipero Ave., Suite 110, Signal Hill, CA, 90755 | 9/1/2026 | (714) 642-5842 | Field Testing ONLY: Nondesctructive Testing (NDT): Ultrasonic Testing (UT), Magnetic Particle Inspection (MPI) |
| TA00250-0 | Frey Environmental, Inc. | 2817-A Lafayette Avenue, Newport Beach, CA, 92663 | 5/1/2026 | (949) 723-1645 | METHANE INVESTIGATIONS - CATEGORY 'D' AGENCY - FIELD TESTING |
| TA10036-0 | Fullerton College | 321 E Chapman Ave., Bldg 700, Fullerton, CA, 92832 | 5/1/2026 | (714) 992-7000 | Weld Testing: Solid State Welding (SSW), Light Gauge (LG) |
| TA24811-0 | GMU Geotechnical, Inc. | 30336 Esperanza, Rancho Santa Margarita, CA, 92688 | 2/1/2026 | (949) 888-6513 | Soils, Asphalt, Aggregates |
| TA24254-0 | GSS Engineering, Inc. | 11823 Slauson Avenue #46, Santa Fe Springs, CA, 90670 | 11/1/2026 | (562) 696-6062 | Soils |
| TA25062-0 | Garcrest Engineering & Construction, Inc. | No Lab - Field Testing Only, | 4/1/2026 | (818) 241-2408 | Soils: Field Testing Only |
| TA10195-0 | Geo Environ Engineering Consultants | 4071 E. La Palma Ave., Suite B, Anaheim, CA, 92807 | 6/1/2026 | (714) 632-3190 | Soils Testing |
| TA10203-0 | Geo Environmental Resources Inc. | 2511 W. La Palma Ave., Ste. E, Anaheim, CA, 92801 | 7/1/2026 | (714) 995-9001 | Soils |
| TA24845-0 | Geo Forward, Inc. | 445 S. Figueroa Street, #3100, Los Angeles, CA, 90071 | 11/1/2026 | (888) 930-6604 | Methane Field Testing |
| TA24863-0 | Geo Tek, Inc. | 1552 N. Maple St., Corona, CA, 92878 | 3/1/2026 | (951) 710-1160 | Aggregate, Concrete, Masonry and Soils |
| TA24835-0 | Geo-Advantec, Inc. | 457 West Allen Ave., Suite 113, San Dimas, CA, 91773 | 2/1/2026 | (909) 305-0400 | Concrete/Masonry/Soils |
| TA10108-0 | GeoConcepts, Inc. | 14428 Hamlin Street, Suite 200, Van Nuys, CA, 91401 | 6/1/2026 | (818) 994-8895 | Soils |
| TA23920-0 | GeoSoils Inc. | 6634 Valjean Ave., Van Nuys, CA, 91406 | 7/1/2026 | (818) 785-2158 | Soils Testing |
| TA24800-0 | GeoTech Consultants, Inc | 1545 N. Verdugo Rd., Unit #7, Glendale, CA, 91208 | 3/1/2026 | (747) 215-6337 | Soils |
| TA24893-0 | Geoboden, Inc. | 28 Edelman, Irvine, CA, 92618 | 9/1/2026 | (949) 872-9565 | Soil & Methane Field |
| TA10188-0 | Geocon West, Inc. | 500 N. Victory Blvd., Burbank, CA, 91502 | 4/1/2026 | (818) 841-8388 | Soils; Concrete; Grout; Masonry; Asphalt |
| TA10198-0 | Geologic Associates | 3921-A E. La Palma Avenue, Anaheim, CA, 92807 | 12/1/2026 | (909) 772-4345 | Soils Testing |
| TA24888-0 | Geolotech, Inc | No Lab: Field Testing Only | 4/1/2026 | (818) 383-5081 | Soils: Field Testing Only |
| TA10217-0 | Geomat Testing Laboratories, Inc. | 9980 Indiana Ave., Suite 14, Riverside, CA, 92503 | 9/1/2026 | (951) 688-5400 | Soils, Concrete & Masonry Testing Lab |
| TA25048-0 | Geomax Engineering, Inc. | 7340 Florence Avenue, Suite 229, Downey, CA, 90240 | 11/1/2026 | (562) 806-2173 | Soils |
| TA24886-0 | Geoscience Analytical LLC | 4212 E Los Angeles #4256, Simi Valley, CA, 93063 | 5/1/2026 | (805) 428-3674 | FIELD METHANE TESTING ONLY |
| TA10056-0 | Geotechnical Professionals, Inc. | 5736 Corporate Avenue, Cypress, CA, 90630 | 11/1/2026 | (714) 220-2211 | Soils |
| TA10086-0 | Geotechnical Soilutions, Inc. | 11080 Tuxford St., Sun Valley, CA, 91352 | 10/1/2026 | (323) 937-1097 | Field Test ONLY: Soils Compaction |
| TA10084-0 | Geotechnical Solutions, Inc | 27 Mauchly Suite 210, Irvine, CA, 92618 | 10/1/2026 | (949) 453-0406 | Soils Testing |
| TA23666-0 | Geotechnologies, Inc. (Prev. Jerry Kovacs & Associates ) | 439 Western Avenue, Glendale, CA, 91201 | 3/1/2026 | (818) 240-9600 | Soil Testing |
| TA24614-0 | Giles Engineering Associates, Inc | 733 W. Taft Avenue, Orange, CA, 92865 | 2/1/2026 | (714) 279-0817 | Soils |
| TA10126-0 | Gold Coast Geo Services, Inc. | 5251 Verdugo Way, Ste. J, Camarillo, CA, 93012 | 12/1/2025 | (805) 484-5070 | Soils |
| TA23870-0 | Gorian and Associates, Inc. | 3595 Old Conejo Road, Thousand Oaks, CA, 91320 | 12/1/2026 | (805) 375-9262 | Soils, Concrete, Masonry, Grout, Compression Testing |
| TA10024-0 | Grover-Hollingsworth and Associates, Inc | 31129 Via Colinas, Suite #707, Westlake Village, CA, 91362 | 7/1/2026 | (818) 889-0844 | Soil Testing |
| TA10231-0 | H & P Mobile Geochemistry, Inc. | 2470 Impala Drive, Carlsbad, CA, 92010 | 11/1/2026 | (760) 804-9678 | Methane Field Testing, Category B |
| TA24887-0 | HD Geosolutions, Inc. | 9300 Oso Ave, Unit A, Chatsworth, CA, 91311 | 4/1/2026 | (818) 357-5845 | Soils, Concrete |
| TA24660-0 | Harbor Occupational Center | 740 N. Pacific Avenue, San Pedro, CA, 90731 | 4/1/2026 | (310) 241-4800 | Welder Performance Testing |
| TA10072-0 | Harrington Geotech Engineering, Inc | 1590 N. Brian Street, Orange, CA, 92867 | 6/1/2026 | (714) 637-3093 | Soils & Concrete Testing |
| TA24929-0 | Heathcote Geotechnical | 1884 Eastman Ave. #105, Ventura, CA, 93003 | 3/1/2026 | (805) 644-9978 | Soils |
| TA10185-0 | Hushmand Associates, Inc. | 250 Goddard, Irvine, CA, 92618 | 11/1/2026 | (949) 777-1268 | Soils and Concrete Testing |
| TA24830-0 | I.F.I. Institut fur Industrieaerodynamik GmbH | Welkenrather Strasse 120, Aachen, 52074 | 9/1/2026 | Wind Tunnel Testing of Buildings & Structures | |
| TA10249-0 | Inland Engineering Technologies, Inc. | 41655 Reagan Way, Suite E, Murrieta, CA, 92562 | 9/1/2026 | (951) 894-6464 | Concrete, Grout, Mortar, Soils (Field Only) |
| TA10166-0 | Inspection Resources, Co. | 1161 N. Cosby Way, Ste. N, Anaheim, CA, 92806 | 8/1/2026 | (714) 427-0501 | Nondestructive Testing: Ultrasonic and Magnetic Particle |
| TA24839-0 | Interra, Inc. | 14433 N. 73rd Street, Scottsdale, AZ, 85260 | 7/1/2026 | (602) 541-5727 | Welder Performance Testing D1.1, D1.3, D1.4 and NDT |
| TA24794-1 | Intertek - ATI | 2524 E. Jensen Avenue, Fresno, CA, 93706 | 4/1/2026 | (559) 233-8705 | Air Leakage, Water Resistance, Structural Loads, Heat Flow on Fenestration Products & Walls |
| TA24794-2 | Intertek Building & Construction | 25800 Commercentre Drive, Lake Forest , CA, 92630 | 3/1/2026 | (949) 469-5190 | Building & Construction Products |
| TA24794-4 | Intertek Building & Construction | Plant 5, 6958 Daye Road, Fengxian District, Shanghai, People's Republic of China, 201405 | 5/1/2026 | (717) 572-7252 | Acoustics, Fenestration, Fire, Impact, Structural, Ultraviolet, Weathering |
| TA24464-0 | Intertek Group, PLC. dba Professional Service Industries, Inc. | 11980 Telegraph Road, Unit #104, Santa Fe Springs, CA, 90670 | 10/1/2026 | (714) 484-8600 | Concrete, Masonry, Soils, URM, In-Place Shear |
| TA24794-6 | Intertek Testing Services NA, Inc. | 8431 Murphy Drive, Middleton , WI, 53162 | 4/1/2026 | (608) 836-4400 | Analytical Analysis, Environmental, Fire, Hearth Products, Lumber Resistance, Small Scale Fire & Windstorm Resistance |
| TA24794-5 | Intertek-ATI | No. 6999 Daye Road, Fengxian District, Shanghai, 201405 | 5/1/2026 | (717) 572-7252 | Curtain Walls, Fenestration, Impact |
| TA24794-0 | Intertek: Architectural Testing, Inc. | 130 Derry Court, York, PA, 17406 | 7/1/2026 | (717) 764-7700 | Acoustics, Concrete, Curtain Walls, Deck Board, Doors, Fire, Handrails, Masonry, Physical, Skylights, Safety Glazing, Structural, Thermal, Windows |
| TA10252-0 | Irvine Geotechnical, Inc. | 145 N. Sierra Madre Blvd., #1, Pasadena, CA, 91107 | 10/1/2026 | (626) 844-6641 | Soils: Field Testing Only |
| TA10224-0 | KM3N -B, INC. DBA Terra-Petra | 700 S. Flower St., Suite #2580, Los Angeles, CA, 90017 | 5/1/2026 | (213) 458-0494 | Methane Soil Gas Investigations (Field Work Only) |
| TA24446-0 | Kinemetrics, Inc | 222 Vista Ave., Pasadena, CA, 91107 | 10/1/2026 | (626) 744-5090 | Accelerograph Testing |
| TA23149-0 | Kleinfelder West, Inc. | 620 South Magnolia Ave., Building "G", Ontario, CA, 91762 | 5/1/2026 | (909) 657-1716 | CONCRETE / MASONRY / STEEL / AGGREGATES / SOILS / 'NDT' / FIREPROOFING / METHANE TESTING / REBAR |
| TA24933-0 | Kling Consulting Group, Inc. | 18008 Sky Park Circle, #150, Irvine, CA, 92614 | 1/1/2026 | (949) 797-6241 | Soils Testing |
| TA10129-0 | Koury Engineering and Testing, Inc. | 5711 Schaefer Avenue, Chino, CA, 91710 | 4/1/2026 | (909) 606-6111 | Aggregates; Asphalt; Concrete; Fireproofing; Fiber Reinforced Polymers; Grout; Masonry; Nondestructive; Rebar; Soils; Stranded Steel Cables |
| TA10129-1 | Koury Engineering and Testing, Inc. | 11473 Pacific Ave., Fontana, CA, 92337 | 4/1/2026 | (909) 988-4054 | Nondestructive Testing (ET,LT,MT,PT,RT,UT,VT) |
| TA24785-0 | Krazan & Associates, Inc. | 215 W. Dakota Avenue, Clovis, CA, 93612 | 9/1/2026 | (559) 348-2200 | Soils, Masonry, Concrete |
| TA24785-1 | Krazan & Associates, Inc. | 1100 Olympic Drive, Ste. 103, Corona, CA, 92881 | 9/1/2026 | (951) 273-1011 | Soils, Masonry, Concrete |
| TA24785-2 | Krazan & Associates, Inc. | 2205 Coy Avenue, Bakersfield, CA, 93307 | 9/1/2026 | (661) 837-9200 | SOILS/MASONRY/CONCRETE/REBAR/WELDING/NON-DESTRUCTIVE TESTING |
| TA25120-0 | Langan CA, Inc. | 18575 Jamboree Road, Suite 150, Irvine, CA, 90620 | 8/1/2026 | (562) 536-5466 | Methane Field Testing Only |
| TA10106-0 | Leedco Engineers, Inc. | 3380 Flair Drive, Suite 225, El Monte, CA, 91731 | 6/1/2026 | (626) 234-2247 | Soils Testing |
| TA24853-0 | Londo Welding Inc., dba: Welding Certification Center | 2701 N. Towne Ave. Unit C, Pomona, CA, 91767 | 1/1/2026 | (909) 334-2378 | Welder Certification AWS D1.1, D1.2, D1.3, D1.4, D1.6 |
| TA23288-0 | Long Beach City College | 1305 E Pacific Coast Hwy. Bldg II, Long Beach, CA, 90806 | 6/1/2026 | (562) 938-4624 | Welding Certification: Structural Steel Welding Only |
| TA01001-0 | Los Angeles Pierce College | 6201 Winnetka Avenue, PMB #278, Woodland Hills, CA, 91371 | 2/1/2026 | (818) 723-7123 | Welder Certification SSW, Manual and Simi Automatic |
| TA10220-0 | Los Angeles Trade Technical College | 400 West Washington Blvd., Bldg. B1, Los Angeles, CA, 90015 | 12/1/2025 | (213) 763-3700 | Welder Performance Testing for Structural Steel and Sheet Steel |
| TA25107-0 | MHP Engineering Group, Inc. | 1110 N. Virgil Ave., Suite 224, Los Angeles, CA, 90029 | 1/1/2027 | (323) 527-4198 | Soils - Field Testing Only |
| TA10057-0 | MTC Engineering, Inc. | 5924 Temple City Blvd., Temple City, CA, 91780 | 2/1/2026 | (626) 287-6416 | Soils Testing |
| TA24780-0 | MTGL, Inc. | 2992 E. La Palma Ave. Suite #A, Anaheim, CA, 92806 | 5/1/2026 | (714) 632-2999 | SOILS / CONCRETE-MORTAR-GROUT COMPRESSION / REBAR / BOLTS / SFRM / CABLE / ROOFING |
| TA25097-0 | Marshall Geosciences, Inc. dba: Marshall Geoscience | 1732 Camulos Avenue, Glendale, CA, 91208 | 11/1/2026 | (818) 310-6161 | Soils & Field Methane Testing |
| TA24878-0 | Mesopotamia Geotechnical Consultants, Inc. | NO LAB - FIELD TEST ONLY | 4/1/2026 | (818) 399-9807 | Field Testing: Soil Compaction |
| TA23205-0 | Mitsubishi Cement Corporation | 5808 State Highway 18, Lucerne Valley, CA, 92356 | 4/1/2026 | Cement | |
| TA24836-0 | Monroe Inspection & Testing Service | 19301 Braes River Dr., Walnut, CA, 91789 | 2/1/2026 | (213) 422-7488 | Concrete, Masonry, Welder Performance Testing |
| TA10245-0 | Moore Twining Associates, Inc. | 2527 Fresno Street, Fresno, CA, 93721 | 9/1/2026 | (559) 268-7021 | Cable, Concrete Compression, Masonry, Rebar, Soils, Welder Performance Testing |
| TA10245-1 | Moore Twining Associates, Inc. | 11800 Sterling Avenue, Suite C, Riverside, CA, 92503 | 9/1/2026 | (951) 898-8932 | Concrete, Masonry, Soils |
| TA24169-0 | Mt. San Antonio College | 1100 North Grand Avenue, Bldg 69, Rm 10A, Walnut, CA, 91789 | 3/1/2026 | (909) 274-4638 | Welder Performance Testing for Structural Steel, Reinforcing Steel, Stainless Steel and Sheet Steel |
| TA24793-0 | NMG Geotechnical, Inc. | 17991 Fitch, Irvine, CA, 92614 | 8/1/2026 | (949) 442-2442 | Soils, Concrete, Mortar |
| TA25033-0 | NV5, Inc. | 1868 Palma Drive, Suite A, Ventura, CA, 93003 | 9/1/2026 | (805) 656-6074 | Soils, Concrete, Masonry, Asphalt, Rebar, Fireproofing |
| TA10077-0 | National Cement Company of California, Inc. | Lebec Cement Plant, 5 Miles East of I-5 off Hwy 138, Lebec, CA, 93243 | 4/1/2026 | (661) 248-6733 | Concrete Testing |
| TA10235-0 | National Inspection and Testing | 6110 Ferguson Drive, Commerce, CA, 90022 | 12/1/2025 | (310) 930-5515 | Testing Agency/Concrete/Masonry/Mortar/Grout Compression/Shear & Tension of Anchor Bolts/NDT/UT/Magnetic Particle/Dye Penetration/In-Place Shear |
| TA10077-1 | National Ready Mixed Concrete Co. | 1830 S. Milliken Avenue, Ontario, CA, 91761 | 4/1/2026 | (909) 657-4000 | Concrete Testing |
| TA24820-0 | Nelson Testing Laboratories | 717 N. Industrial Drive, Elmhurst, IL, 60126 | 7/1/2026 | (630) 501-0230 | Concrete, Masonry, Waterproofing |
| TA10087-0 | Ninyo & Moore | 475 Goddard, Suite 200, Irvine, CA, 92618 | 10/1/2026 | (949) 753-7070 | Concrete, Flex Beams, Grout, Methane, Mortar, Soils |
| TA10065-0 | Operating Engineers Training Trust | 2200 S. Pellissier Place, Whittier, CA, 90601 | 4/1/2026 | (562) 695-0611 | Welder Performance Testing for Structural Steel and Tubular |
| TA10239-0 | Optimal Technology | 1667 Cross Bridge Place, Thousand Oaks, CA, 91362 | 5/1/2026 | (818) 734-6230 | Methane Field Testing Only |
| TA10007-0 | Orange Coast College-Welding Technology | 2701 Fairview Rd, Costa Mesa, CA, 92626 | 12/1/2025 | (714) 432-5820 | Welder Performance Testing for 'SSW', 'LG', or 'RB' certifications |
| TA10094-0 | P.A. & Associates, Inc. | 23011 Moulton Parkway, Suite D-7, Laguna Hills, CA, 92653 | 9/1/2026 | (949) 679-7474 | Soils |
| TA24819-0 | PRI Construction Materials Technologies, LLC. | 6410 Badger Drive, Tampa, FL, 33610 | 6/1/2026 | (813) 621-5777 | Exterior Walls, Floors, Foundations, Methane Membranes, Plastics, Roof Coverings, Rubber, Thermal Insulation |
| TA10186-0 | Pacific Geotech, Inc. | 1424 Rolling Hills Drive, Fullerton, CA, 92835 | 3/1/2026 | (626) 675-1254 | Soils Testing |
| TA00302-0 | Parikh Consultants, Inc. | 1497 N. Milpitas Blvd., Milpitas, CA, 95035 | 12/1/2025 | (408) 452-9000 | Soils Testing Lab |
| TA24897-0 | Partner Engineering and Science, Inc. | 2172 Torrance Blvd, Torrance, CA, 90501 | 10/1/2026 | (310) 615-4500 | Field Methane and Soils |
| TA24837-0 | Pasadena City College | 1570 E. Colorado Blvd., Pasadena, CA, 91106 | 5/1/2026 | (626) 585-7123 | Welder Performance Testing |
| TA22916-0 | Port of Los Angeles Test Laboratory | 514 Pier 'A' Street Berth 161, Wilmington, CA, 90744 | 7/1/2026 | (310) 732-7674 | Concrete, Masonry, Steel and Soil Testing |
| TA25121-0 | Prime Test Engineering | 8807 Pioneer Blvd, Unit D, Santa Fe Springs, CA, 90670 | 8/1/2026 | (213) 403-0112 | CONCRETE TESTING, FIELD SOILS and FIELD PULL TEST |
| TA23113-0 | R & R Services Corp. dba Geolabs-Westlake Village | 3595 Old Conejo Road, Thousand Oaks, CA, 91320 | 7/1/2026 | (818) 889-2562 | Soils, Aggregates, Mortar, Grout, Concrete, Rebar, Pull out of Rebar, Anchor Bolts |
| TA22788-0 | R. T. Frankian & Associates | 26027 Huntington Lane, Suite A, Santa Clarita, CA, 91355 | 4/1/2026 | (661) 257-5800 | Soils Testing |
| TA00288-0 | RMA GeoScience | 9854 Glenoaks Blvd., Sun Valley, CA, 91352 | 7/1/2026 | (800) 762-4396 | Soils Testing & Concrete Compression Testing |
| TA23752-2 | RMA Group | 1210 E. 223rd Street, #319, Carson, CA, 90745 | 9/1/2026 | Asphalt, Concrete, Grout, Masonry, Mortar, Soils | |
| TA23752-4 | RMA Group - Burbank Airport | 3910 Cohasset Street, Burbank, CA, 91505 | 4/1/2026 | (909) 998-1751 | Aggregate, Concrete and Soils |
| TA23752-3 | RMA Group - Olancha | 2000 Cactus Flats Road, Olancha, CA, 93549 | 7/1/2026 | (909) 989-1751 | Soils & Concrete Compression Testing |
| TA23752-0 | RMA Group dba Certerra RMA Group DBA Certerra RMA Group | 12130 Santa Margarita Court, Rancho Cucamonga, CA, 91730 | 9/1/2026 | (909) 989-1751 | Asphalt, Concrete, Masonry, Rebar, Soils |
| TA23501-0 | Ralph Stone and Company, Inc. | 10954 Santa Monica Blvd., Los Angeles, CA, 90025 | 6/1/2026 | (310) 478-1501 | Soils |
| TA24869-0 | ReIgnite Hope | 14333 S. Figueroa Street, Gardena, CA, 90248 | 11/1/2026 | (310) 847-0156 | Welder Performance Testing: D1.1, D1.2, D1.3, D1.6 |
| TA24817-0 | Reftek Systems, Inc. | 75 MacDonald Avenue, Dartmouth, Nova Scotia , Canada B3B 1T8 | 5/1/2026 | (902) 293-2418 | Accelerograph Testing |
| TA24900-0 | Reliant Testing Engineers, Inc. | 3033 & 3035 S. Harbor Blvd., Santa Ana, CA, 92704 | 9/1/2026 | (714) 556-5867 | Concrete, Masonry, Mortar, Grout, Fireproofing, Shotcrete, Rebar, Post-Tension, Bolts, Rockwell Hardness |
| TA24844-0 | Rio Hondo College | 3600 Workman Mill Road, Whittier, CA, 90601 | 4/1/2026 | (562) 463-7368 | Welder Qualification Testing: D1.1 |
| TA10078-0 | Riverbank Acoustical Laboratories | 1512 S. Batavia Avenue, Geneva, IL, 60134 | 10/1/2026 | (630) 232-0104 | Acoustic Testing |
| TA24802-0 | Robles Engineering, Inc. | 449 W. Allen Avenue #101, San Dimas, CA, 91773 | 4/1/2026 | (818) 314-8166 | Soils Only |
| TA24852-0 | Rowan Williams Davies & Irwin Inc. | 600 Southgate Drive, Guelph, ON N1G 4P6, | 5/1/2026 | (519) 823-1311 | Wind Tunnel Testing of Buildings and Structures |
| TA10181-0 | Rybak Geotechnical, Inc. | 16022 Arminita Street # 7, Van Nuys, CA, 91406 | 5/1/2026 | (818) 785-0550 | Soils Test |
| TA24846-0 | S.M.H.E, Inc. | 1032 E. Edna Pl., Covina, CA, 91724 | 7/1/2026 | (909) 869-0989 | Racking Systems per ASTM 370 and RMI/ANSI MH 16.1, 16.3, 26.2, 28.1, 28.2, 28.3 |
| TA24787-0 | SGS North America, Inc. | 96 Allen Blvd., Farmingdale, NY, 11735 | 1/1/2026 | (631) 293-8944 | Fire Testing |
| TA24880-0 | SL Inspection Services, Inc. | 1370 E. Valley Vista Drive, #200, Diamond Bar, CA, 91765 | 3/1/2026 | (310) 804-8928 | Ultrasonic Field Testing |
| TA10116-0 | SPC Geotechnical, Inc | 685 N. Shepard Street, Anaheim, CA, 92806 | 3/1/2026 | (714) 630-0321 | Soils Testing |
| TA23938-0 | Safety Glazing Certification Council | Certification Only, Sackets Harbor, NY, 13685 | 10/1/2026 | (315) 646-2234 | Safety Glass Testing and Labeling |
| TA10221-0 | Salem Engineering Group, Inc. | 4729 W. Jacquelyn Avenue, Fresno, CA, 93722 | 4/1/2026 | (559) 271-9700 | SOILS TESTING, CONCRETE, MASONRY |
| TA10247-0 | Salt River Materials Group dba Phoenix Cement Company | 601 N. Cement Plant Rd., Clarksdale, AZ, 86324 | 7/1/2026 | (480) 850-5757 | CEMENT AND FLY ASH TESTING |
| TA24776-0 | Santa Ana College, Welding Technology | 1530 West 17th St., K-101, Santa Ana, CA, 92706 | 5/1/2026 | (714) 564-6673 | Welding Certification Testing |
| TA10001-0 | Sassan Geosciences, Inc. | 1290 N. Lake Avenue #204, Pasadena, CA, 91104 | 6/1/2026 | (626) 345-1819 | Soils, Methane Field Testing |
| TA24691-0 | Seismic Systems Service | 45 W. Easy St. Suite #5, Simi Valley, CA, 93065 | 4/1/2026 | Accelerograph Instrumental Testing | |
| TA24842-0 | Sepich Enterprises, LLC., dba: Brownfield Subslab | Field Only - No Lab | 4/1/2026 | (818) 597-1448 | Methane Field Testing |
| TA24834-1 | Sequoia Consultants, Inc | 3403 W. El Segundo Blvd., Hawthorne, CA, 90250 | 4/1/2026 | (310) 910-0713 | Asphalt, Concrete, Masonry, and Field Testing of Soils |
| TA24834-0 | Sequoia Consultants, Inc. | 361 W. Grove Ave., Orange, CA, 92865 | 2/1/2026 | (714) 974-6316 | Concrete, Masonry, Asphalt, Rebar, Field Testing of Soils |
| TA10085-0 | Simi Institute for Careers and Education | 1880 Blackstock Avenue, Simi Valley, CA, 93065 | 3/1/2026 | (805) 579-6200 | Welder Certs - SSW/Light Gauge/Aluminum |
| TA22038-0 | Sladden Engineering dba Inland Valley Sladden Inc. | 450 Egan Avenue, Beaumont, CA, 92223 | 5/1/2026 | (951) 845-7743 | Soils/Concrete Compression Testing |
| TA24881-0 | Slawson Southeast Occupational Center | 2945 Belgrave Avenue, Huntington Park, CA, 90255 | 10/1/2026 | (323) 826-2400 | Welder Performance Testing: D1.1, D.2, D1.3, D1.4, D 1.6 |
| TA02122-0 | Smith-Emery Laboratories | 781 E. Washington Blvd., Los Angeles, CA, 90021 | 6/1/2026 | (213) 749-3411 | Soils, NDT, Fireproofing, Glazing, Compression, Rebar, Steels, Slip Resistance, Stone, Tile, Ceramics, Curtain Walls, Racks, Moment Frames, Load Testing, Manholes, Concrete: Masonry/Grout |
| TA02122-2 | Smith-Emery Laboratories | 1197 North Tustin Avenue, Anaheim, CA, 92807 | 10/1/2026 | (714) 238-6133 | Aggregate, Asphalt, Concrete |
| TA10127-0 | Soil Labworks, LLC | 2500 Townsgate Road, Suite E, Westlake Village, CA, 91361 | 2/1/2026 | (805) 370-1338 | Soils |
| TA10046-0 | Soil Pacific, Inc | 675 North Eckhoff St., Suite A, Orange, CA, 92868 | 1/1/2026 | (714) 879-1203 | Soils Testing Lab |
| TA10095-0 | Sotter Engineering Corporation | 26705 Loma Verde, Mission Viejo, CA, 92691 | 2/1/2026 | (949) 933-6971 | Slip Resistance Testing |
| TA10152-0 | Southern California Geotechnical, Inc. | 22885 E Savi Ranch Pkwy, #E, Yorba Linda, CA, 92887 | 3/1/2026 | (714) 685-1115 | Soils Test |
| TA10027-0 | Southern California Sheet Metal JATC | 633 N. Baldwin Park Blvd, City of Industry, CA, 91746 | 7/1/2026 | (626) 968-3340 | Welder Performance Testing: Aluminum, Light Gauge, Stainless Steel, Steel |
| TA24832-0 | Southern California Welding Training and Testing Center | 1500 Mariner Dr. Unit F, Oxnard, CA, 93033 | 4/1/2026 | (805) 486-8700 | WELDER PERFORMANCE CERTIFICATION PER AWS D1.1, D1.2. D1.3, D1.6 |
| TA24379-1 | Southwest Carpenters Training Fund | 3250 E. Shelby Rd. Suite 137, Ontario, CA, 91764 | 8/1/2026 | (855) 553-5282 | Welders Performance Testing for Manual and Semi-Automatic Processes in accordance with AWS D1.1, D1.2, D1.3, D1.4, D1.6, and D1.8. |
| TA24379-2 | Southwest Carpenters Training Fund | 1010 Sandhill Ave., Carson, CA, 90746 | 8/1/2026 | (855) 533-5282 | Welders Performance Testing for Manual and Semi-Automatic Processes in accordance with AWS D1.1, D1.2, D1.3, D1.4, D1.6, and D1.8. |
| TA24379-3 | Southwest Carpenters Training Fund | 7111 Firestone Blvd., Suite #137, Buena Park, CA, 90621 | 8/1/2026 | (855) 533-5282 | Welders Performance Testing for Manual and Semi-Automatic Processes in accordance with AWS D1.1, D1.2, D1.3, D1.4, D1.6, and D1.8. |
| TA11069-0 | Southwest Geotechnical, Inc. | 21704 W. Golden Triangle Rd., #425, Santa Clarita, CA, 91350 | 2/1/2026 | (661) 222-9544 | Soils Test |
| TA00247-0 | Southwest Inspection and Testing | 441 Commercial Way, La Habra, CA, 90631 | 6/1/2026 | (562) 941-2990 | Soils, Rebar: Tensile & Bend, Concrete: Mortar/Grout, Concrete Design Mixes, SFRM |
| TA23337-0 | Southwest Research Institute | 6220 Culebra Road, San Antonio, TX, 78238 | 7/1/2026 | (210) 522-5832 | Fire Testing & Building Material Listing |
| TA10155-0 | Specialized Testing, Inc. | 10600 Pioneer Blvd. #G, Santa Fe Springs, CA, 90670 | 5/1/2026 | (562) 351-3900 | Anchor Bolts, Concrete, SEAOSC Cyclic, Fiber Reinforced Polymer ASTM D3039, Fireproofing, Grout, Masonry, Mortar, Post Tension Cables, Rebar, Steel Mesh Guardrail Testing |
| TA10081-0 | T.I.N. Engineering Company | 17834 Bailey Drive, Torrance, CA, 90504 | 4/1/2026 | Soils | |
| TA10180-0 | TGR Geotechnical Inc. | 3037 S. Harbor Blvd., Santa Ana, CA, 92704 | 8/1/2026 | (714) 641-7189 | Soils Testing |
| TA24784-0 | TRI Environmental | 1970 S. Santa Cruz St., Anaheim, CA, 92805 | 9/1/2026 | (714) 520-9631 | Geosynthetic Materials, Methane Barriers, Thermal Resistance, Seam Weld, Interface Shear, Weatherproofing, Accelerated Aging, Concrete Pavers, & Tiles |
| TA23199-0 | Tehachapi Cement, LLC. | 13573 E. Tehachapi Blvd, Tehachapi, CA, 93561 | 3/1/2026 | Cement | |
| TA10213-0 | Terracon Consultants, Inc. | 145 W. Walnut Street, Carson, CA, 90248 | 7/1/2026 | (310) 627-3430 | Concrete, Soils, & Methane Field Testing |
| TA24101-0 | Testing Engineers, Inc dba TEI DBA TEI | 2811 Teagarden Street, San Leandro, CA, 94577 | 2/1/2026 | (510) 835-3142 | Concrete, Masonry, NDT, Steel, WPS, Welder Performance, Carbon Wrap (D-3039) |
| TA10209-0 | Tetra Tech BAS, Inc., dba: Bryan A. Stirrat & Associates | 21700 Copley Drive #200, Diamond Bar, CA, 91765 | 11/1/2026 | (909) 860-7777 | Methane Testing (Field Only) |
| TA24876-0 | The Pacific Group West Inc., dba: Methane Specialists | 5210 Lewis Road, Ste. 1, Agoura Hills, CA, 91301 | 5/1/2026 | (805) 987-5356 | Methane - Field Testing Only |
| TA17549-0 | Timber Products Inspection, Inc. | 1641 Sigman Road, Conyers, GA, 30012 | 9/1/2026 | (770) 922-8000 | Grading; Inspection & Testing: Wood Structural Panels, Glulams, I Joists, Lumber, & Composite Wood Products |
| TA02629-0 | Tri-Community Adult Education-Covina Valley USD DBA Covina Valley Unified School District | 231 East Stephanie Dr., Bldg M, Covina, CA, 91722 | 5/1/2026 | (626) 974-6434 | Welder Performance Testing for AL, LG, RB, SST, SHST |
| TA24108-0 | Twining Consulting Inc. dba Radco | 18071 Mount Washington St., Fountain Vallley, CA, 92708 | 7/1/2026 | (562) 272-7231 | Fenestration, Physical, Roofing, Structural and Thermal Testing |
| TA02485-0 | Twining Inc. | 3310 E. Airport Way, Long Beach, CA, 90806 | 6/1/2026 | (562) 426-3355 | Asphalt, Concrete, Slag Cement, Concrete Admixtures, Portland & Hydraulic Cement, Fly Ash, Pozzolan, Masonry, Concrete & Steel NDT, Structural Steel, Unreinforced Masonry, In-Place Shear, Slip Resistance, Fiber Reinforced Polymer, Soils, Rebar |
| TA24866-0 | U.S. Inspection & Consulting | 2810 S. 24th Street, Suite 119, Phoenix, AZ, 85034 | 6/1/2026 | MT, PT, RT, UT and VT Steel Nondestructive Testing in the Field Only | |
| TA22188-0 | UL LLC | 333 Pfingsten Rd, Northbrook, IL, 60062 | 1/1/2026 | (847) 272-8800 | Wood & Fire |
| TA10041-0 | Universal Engineering Sciences dba CTE | 1441 Montiel Road, Suite 115, Escondido, CA, 92026 | 2/1/2026 | Soil / Concrete / Masonry / Reinforcing Steel Testing / 'NDT' | |
| TA10197-0 | Urban Testing & Inspection, Inc. | 22138 S. Vermont Ave., Unit G, Torrance, CA, 90502 | 11/1/2026 | (310) 320-0482 | Concrete, Grout, Masonry, Compression Testing, Nondestructive Testing, Rebar Bend, Tensile, Fireproofing, Drilled in Anchors, Welder Certification |
| TA25106-0 | Urban Workshop | 365-A Clinton St., Costa Mesa, CA, 92626 | 1/1/2027 | (949) 296-2153 | Welding Performance Testing AWS D1.1, D1.2, D1.3, D1.4, D1.6, D1.8 |
| TA23936-0 | Veneklasen Associates, Inc., dba: Western Electro-Acoustic Laboratory, Inc | 25132 Rye Canyon Loop, Santa Clarita, CA, 91355 | 4/1/2026 | (661) 775-3741 | Acoustics and Sound |
| TA10069-0 | Verdantas Inc. | 16691 Millikan Avenue, Irvine, CA, 92606 | 5/1/2026 | (949) 250-1421 | Concrete, Grout, Masonry, Mortar, Post Tension Cables, Rebar, Soils, Steel, Methane: Field Only |
| TA24671-0 | Victor Valley Community College | 18422 Bear Valley Rd, Victorville, CA, 92395 | 9/1/2026 | (760) 885-7145 | Welder Certification |
| TA24569-0 | Vtec Laboratories, Inc | 212 Manida St, Bronx, NY, 10474 | 5/1/2026 | (718) 542-8248 | Fire Testing |
| TA24857-0 | West Coast Inspection Services | 8653 Avenida Costa Norte, San Diego, CA, 92154 | 2/1/2026 | (619) 326-4405 | Concrete; MT, PT, UT & VT Nondestructive Testing; Welder Performance: AWS D1.1, D1.2, D1.3, D 1.6, D1.8 |
| TA10165-0 | Willdan Geotechnical | 1515 S. Sunkist Street, Suite E, Anaheim, CA, 92806 | 12/1/2025 | Aggregates, Concrete, Grout, Mortar, Soils |