special inspection

of page CONSTRUCTION QUALITY ASSURED SINCE 1989ABOUTABOUTOn November 28, 2025, AAR joined SOCOTEC, marking an exciting new chapter in our company’s history. This partnership builds on AAR’s long-standing legacy of technical excellence, integrity, and people-focused service. By joining SOCOTEC, we expand our reach and capabilities as part of a unified team of more than 1,700 experts nationwide. Together, we deliver broader, integrated solutions to better serve our materials testing and construction quality clients. ​ Founded in 1989, AAR has continuously provided construction quality assurance, quality control, special inspection, and materials testing services throughout Washington State. AAR is a Washington Association of Building Officials (WABO) certified independent special inspection and materials testing agency headquartered in Redmond, Washington. Our laboratories in Redmond.

destructive testingmaterials testingnon-destructive testingquality assurancequality control

Achievement Engineering Corp. (Achieveng) is a minority-owned small business engineering firm founded in 2010 in San Jose, California, now with four offices across the Bay Area and Central Valley. Its team of engineers, geologists, inspectors, and administrative staff provides materials testing, inspection services, and engineering solutions for projects ranging from transportation infrastructure to commercial and residential buildings.

construction observationenvironmental site assessmentsField testinggeotechnical engineeringmaterials testingnon-destructive testingquality assurance/quality controlremediation designseismic hazard evaluationTensile and Compression Testing

Alpha Geotechnical and Materials, Inc. is a local consulting firm specializing in geotechnical and environmental engineering, geological services, and construction inspections and materials testing. Founded in 1998, Alpha is now owned and operated by three long time employees. Alpha provides services to a wide variety of public and private clients, working on projects from small single commercial pads to large master-planned communities.

asphaltic concrete testingconcrete testingenvironmental site assessmentsgeological servicesgeotechnical testinggrout, mortar and concrete masonry testingsoils or aggregate testing

AMERIGEO, Inc. is a professional engineering consulting firm founded in 2009 that provides engineering and construction support services in the New York and New Jersey area. It is qualified as a Class 1 Special Inspection Agency in New York City and serves public and private clients. Its staff includes engineers, geologists, technicians, inspectors, field data collectors, and CADD personnel.

construction support servicesfoundation engineeringGeophysical testinggeotechnical engineeringinstrumentation and monitoringlaboratory testingLiquefaction analysisrock coringSeismic retrofit analysis and designsoil samplingstructural engineeringTest boring

The Quality Firm (TQF) is a California-based DBE/SBE Corporation providing quality and construction management services. It is a full-service quality management, inspection, engineering, and material testing firm working on large-scale infrastructure projects including aviation, bridge, rail, water, and underground. Established in 2018, it has offices in Signal Hill, Pomona, San Diego, and San Jose, with over 150 employees, three laboratories, and a fleet of mobile labs. It is a subsidiary of ACS.

Construction ManagementengineeringEnvironmental Compliancegeotechnical engineeringinspectionmaterial testingQC/QAquality managementsubsurface imaging

ATEK Engineering Consultants, LLC is a Native American owned Arizona-based engineering consulting firm specializing in geotechnical engineering, materials engineering, construction materials testing and special inspection services. ATEK was established in 2010 and is recognized as a certified Disadvantaged Business Enterprise (DBE), AZUTRACS # 11395 from the Arizona Unified Certification Program.

construction observationfoundation engineeringgeotechnical engineeringlaboratory testingmaterials testingpavement designslope stability analysiswelding inspection

Atlas is a project delivery management firm providing comprehensive support in managing large-scale infrastructure improvement programs. It offers testing, inspection and certification; environmental solutions; engineering and design; and program, construction and quality management services across markets including commercial, education, government, healthcare, industrial, power and energy, transportation and water.

Construction materials testingDye penetrant testingforensic and structural investigationsmagnetic particle testingmaterials laboratory testingmetallurgical laboratorynon-destructive testingpetrographic evaluationquality assurance and controlseismic testingultrasonic testingweld testing

Baer Testing and Engineering, Inc. provides construction materials testing, special inspection, and geotechnical engineering services to the Pacific Northwest. Services include field inspections, laboratory testing, and geotechnical engineering solutions. Its Yakima and Kennewick offices are AASHTO Accredited and ODOT (Oregon Certified), and the Yakima office is Army Corps of Engineers Validated.

Construction materials testingField inspectionsgeotechnical engineeringlaboratory testing

BECC, Inc. is a woman-owned geotechnical and environmental engineering firm incorporated in Alabama in 1992 and licensed across the United States. It provides geotechnical engineering, environmental assessments, construction materials testing, special inspections, surveying, roller-compacted concrete support, heavy-duty pavement design, and subsurface utility engineering, backed by an AASHTO-accredited laboratory.

electromagnetic inductionfoundation designground penetrating radarland surveyingmaterials testingpavement designretaining system designroller compacted concrete mix designslope stability analysisSubsurface explorationsubsurface utility engineeringvacuum excavation

BSK Associates is a 100% employee-owned consulting firm providing geotechnical, engineering, environmental consulting, materials testing, special inspection and environmental analytical services. Founded in 1966, the company has over 220 employees and 11 offices across multiple states, serving industries including agriculture, commercial/industrial, education, government, healthcare, energy, transportation, water resources and solid waste.

environmental analysisEnvironmental Consultingenvironmental permitting and compliancegeophysical servicesgeotechnical engineeringgroundwater investigationsmaterials testingPhase I and Phase II Environmental Site Assessmentssoil investigationssoil vapor investigations

Budinger & Associates, Inc. has been an industry leader in the Inland Northwest since 1976, headquartered in Spokane Valley, Washington. The firm provides geotechnical engineering, environmental engineering, exploratory drilling, laboratory analysis, construction material testing, and special inspection services throughout the Pacific Northwest. It employs registered professional engineers, geologists, and certified field and laboratory technicians, serving contractors, developers, property owners, municipalities, and government agencies.

construction material testingenvironmental engineeringexploratory drillinggeotechnical engineeringLaboratory analysisSubsurface explorationtemporary shoring wall design

CGi Technical Services is a professional consulting firm specializing in geotechnical engineering, engineering geology, materials testing and special inspection. The firm provides geotechnical services for water and wastewater facilities, tanks, pipelines, pump stations, airports, schools, roadways, bridges and trenchless projects, and maintains a fully accredited geotechnical soils and construction materials laboratory. It is celebrating 25 years in business.

asphalt mix designgeophysical investigationnondestructive testing of weldsseismic hazard assessmentsoils and materials laboratory testingwelding inspection

Christian Wheeler Engineering is an independent, locally owned engineering firm founded in September 1998, providing geotechnical and geologic consulting, special inspection, building envelope consulting, and soil and material testing services throughout San Diego County and Southern California. The firm serves residential, commercial, industrial, biotech, military, education, and healthcare sectors.

Building Envelope Consultingconstruction observationgeologic hazard evaluationgeotechnical investigationlaboratory testingslope stability analysisstructural investigations

Clair is one of the largest third-party plan review and inspection agencies in the Pacific Northwest, a fully licensed, accredited and certified consulting firm providing special inspection and materials testing, plan review, building inspection, code consulting and quality control services. Additional services include engineering design, land use, permitting and interagency coordination. Corporate office is in Corvallis, Oregon, with project offices throughout the United States, serving projects in Oregon and Washington.

building inspectioncode consultingconstruction administrationengineering designground penetrating radar concrete scanningmaterials testingnon-destructive testingPlan Reviewquality controlwelding inspection

CMT Technical Services is a full-service construction engineering, testing and inspection, and surveying provider established in 1978 with a single Utah lab. It delivers construction materials testing and special inspection, geotechnical engineering, land surveying, civil engineering, and environmental consulting across Arizona, Utah, Idaho, Colorado, and Texas, with AASHTO- and A2LA-accredited labs and ASTM-certified professionals.

civil engineeringConstruction materials testingEnvironmental Consultinggeotechnical engineeringland surveyingquality assurance programsstructural inspections

Construction Testing Laboratories, Inc. (CTL) is a special inspection and testing laboratory located in the Tacoma area, where it has resided for over fifteen years. CTL maintains the highest level of accreditation available for technical competence in its industry, as set forth in ISO17025:2005, and is accredited through bodies such as A2LA, AASHTO (R-18) and in accordance with ASTM E-329. It also maintains validation with the Army Corps of Engineers (ACOE).

aggregate testingasphalt mixture testingAtterberg limitsgrain size analysisHamburg wheel rut testingLA AbrasionMarshall method mix designsporous HMA mix designssoils laboratory testingSpecific Gravitystandard and modified proctors for compaction testingSuperpave / Gyratory mix designsWSDOT Degradation

Consulting Structural Hawaii, Inc. is a structural engineering firm located in the Halawa Industrial area of Aiea, Hawaii, led by Mr. Ethan W. Okuna, PE. Founded in 1987 by Mr. Roy K. Yamashiro, PE and Mr. Gary S. Suzuki, PE, the company has worked on 3300+ projects over 30+ years across the Pacific Rim.

Construction Managementdue diligence assessmentproject managementStructural analysisstructural design

CTE Cal, Inc. (CTE) provides engineering, quality control management, inspection, and materials testing services throughout Northern California and Nevada. It offers geotechnical, geological, environmental, structural and civil engineering services, and has provided Special Inspections and Quality Control Management services for over 25 years. The company was previously part of Construction Testing & Engineering, Inc., founded in 1989, and became locally owned in 2014. It has three regional offices in Northern California.

civil engineeringenvironmental engineeringfoundation engineeringgeological engineeringgeotechnical engineeringmaterials testingquality control managementwelding inspection

Distinct Engineering Solutions, Inc is a civil engineering consulting firm serving New York, New Jersey, Connecticut, and Pennsylvania. It specializes in Site Civil, Geotechnical, Environmental Engineering, Construction Inspections, and Project Support. The firm is registered as professional engineers in New Jersey, New York, Pennsylvania, and Connecticut, and describes itself as a small, minority, quality conscientious business enterprise.

civil engineeringConstruction Qualitydesign-bid-builddesign-buildEnvironmental Investigation & RemediationGeo-Structural Consultinggeotechnical engineeringHazmat & OSHA Compliance ConsultingNoise & Air ConsultingSite Civil and Permittingvibration monitoring

ELAXiOM is a multi-disciplinary engineering firm providing full-service geotechnical engineering, geological services, soil and material testing, and special inspection services. Its staff of professional engineers, geologists and technicians have decades of experience serving a wide variety of industries, using a multi-facet approach to problem solving to deliver cost-effective, practical solutions.

concrete and aggregate testingdrilling and testinggeophysical non-destructive surveygeotechnical engineeringmaterial testingunmanned aircraft systems/drones

EMC Engineering, LLC is an employee-owned and operated civil consulting firm established in 2002 and based in south-central Alaska. It provides construction administration, civil engineering, quality control management, constructability review, materials testing, special inspection, geotechnical engineering, and SWPPP consulting. EMC operates a full-service AASHTO-accredited laboratory in Palmer and a full-service laboratory in Anchorage, plus remote locations throughout Alaska.

AASHTO accredited laboratory testingasphalt mix designcivil engineeringconcrete mix designconstruction administrationgeotechnical engineeringmaterials testingNACE coating inspectionsNDT Level IISWPPP consultingwelding inspection