Public engineering firm directory

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AMEL Technologies, Inc.

Honolulu, HI

Engineering Consulting & Construction Management Services

WebsitePhone1 office1 projects2 leadersFounded 2004Updated Jun 2026

Project: Pearl Harbor Fitness Center

Service: Mechanical EngineeringService: Energy Consulting ServicesService: SustainabilityIndustry: GovernmentIndustry: FederalType: Mechanical Engineering+26 more

Advanced Geotechnical Engineering LLC

Pearl City, HI

Building Our World on Solid Foundations

WebsitePhone1 office5 projects1 leadersUpdated Jun 2026

Project: Honolulu Rapid Transit Project

Service: Soil InvestigationService: Subsurface InvestigationService: Soil and Groundwater SamplingIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+28 more

Brierley Associates Corporation

Englewood, CO

Creating Space Underground

WebsitePhone20 offices4 projects6 leaders11 credentialsUpdated Jun 2026

Project: Champlain Hudson Power Express Trenchless Crossings

Service: Tunneling EngineeringService: Trenchless EngineeringService: Horizontal Directional Drilling (HDD)Industry: Water SupplyIndustry: WastewaterType: Geotechnical Engineering+20 more

Environmental Science Corporation

Honolulu, HI

Environmental Science Corporation (ESC) is a US-based multinational engineering and consulting practice. It provides architect-engineering design, geotechnical engineering, geophysics, topographic surveys, technical inspections, and environmental services across Hawaii, Guam, Japan, and other Pacific locations. With offices in Tokyo, Okinawa, Misawa, and Guam, ESC supports military and government facility engineering, Pacific island infrastructure development, and multilingual project execution.

Website6 offices3 projects7 leadersSize Estimate: 25-150 employeesUpdated Jun 2026

Project: Okinawa Branch Office Solar Installation

Service: Architect-Engineering DesignService: Civil DesignService: Sustainable Design DevelopmentIndustry: DefenseIndustry: GovernmentType: Architecture & Engineering+42 more

Geolabs, Inc.

Waipahu, HI

Geolabs, Inc. is a full-service geotechnical engineering practice established in 1975 and headquartered in Waipahu, Oahu. With 80 staff and offices across Hawaii and in Oakland, California, Geolabs delivers foundation investigations, roadway embankment design, dam and reservoir engineering, and landslide and rockfall mitigation throughout Hawaii and the Pacific Basin. It brings nearly five decades of accumulated soil and geologic data across the region to every investigation.

WebsitePhone4 offices6 projects17 credentialsFounded 1975Size Estimate: 50-199 employees

Project: International Marketplace

Service: Geotechnical DesignService: Subsurface ExplorationService: Foundation EngineeringIndustry: InfrastructureIndustry: TransportationType: Geotechnical Engineering+11 more

Hayre McElroy & Associates, LLC

Redmond, WA

Hayre McElroy & Associates, LLC is a special inspection, materials testing, and engineering firm serving public and private clients throughout the Pacific Northwest, Alaska, Hawaii, and Texas. Its accredited full-service laboratory tests soil, aggregate, hot-mix asphalt, concrete, masonry, shotcrete, fireproofing, and structural steel, and provides geotechnical strength and corrosion potential testing. HMA's licensed engineers and certified multi-discipline inspectors support projects from small municipal developments to large military and transit programs, complementing testing work with civil, electrical, fiber optics, code compliance, TESC, and construction management services.

WebsitePhone3 offices4 credentialsUpdated Jun 2026

Service detail: Special Inspection

Service: Special InspectionService: Materials TestingService: Geotechnical EngineeringIndustry: InfrastructureIndustry: GovernmentType: Geotechnical Engineering+11 more

Hirata & Associates, Inc.

Aiea, HI

Practical geotechnical engineering solutions for Hawaii and Guam

WebsitePhone1 office4 projects3 leaders1 credentialsFounded 1971

Project: Kahului Airport CONRAC Facility

Service: Geotechnical EngineeringService: Shallow and Deep Foundation InvestigationsService: Pavement DesignIndustry: InfrastructureIndustry: TransportationType: Geotechnical Engineering+24 more

Island Geotechnical Engineering

Kihei, HI

Island Geotechnical Engineering (IGE) is a full-service Geotechnical Engineering firm established on Maui, Hawaii in 1997. IGE provides geotechnical subsurface investigations, foundation engineering, earth construction observation and testing, rock fall and slope stability analysis, percolation testing, and pavement design for residential, commercial, industrial, and government clients throughout the Hawaiian Islands and Guam. AASHTO-accredited soil laboratories on Maui and the Big Island support material testing performed to ASTM and AASHTO standards. IGE's team of licensed Professional Engineers and Engineering Technicians carries ACI and HDOT certifications.

WebsitePhone1 office3 credentialsFounded 1997Updated Jun 2026

Service detail: Geotechnical Subsurface Investigation

Service: Geotechnical Subsurface InvestigationService: Site Investigation and CharacterizationService: Geotechnical Risk AnalysisIndustry: ResidentialIndustry: CommercialType: Geotechnical Engineering+40 more

Kokua Geotech LLC

Honolulu, HI

Kokua Geotech LLC is a Honolulu-based geotechnical engineering practice established in 2016. It provides comprehensive geotechnical engineering services across all major Hawaiian Islands, including site explorations, laboratory soil testing, engineering analysis, and construction observation. The practice combines deep regional experience in Hawaii and the Pacific with the responsiveness and agility of an independent small business.

WebsitePhone1 office2 leadersFounded 2016Updated Jun 2026

Service detail: Geotechnical Explorations

Service: Geotechnical ExplorationsService: Site InvestigationService: Stabilization StudiesIndustry: CommercialIndustry: ResidentialType: Geotechnical Engineering+16 more

Masa Fujioka & Associates

Aiea, HI

Designing solutions for your geotechnical engineering and environmental challenges.

WebsitePhone1 office3 projects1 leaders10 credentialsFounded 1991

Project: Nu'upia Ponds Observation Towers

Service: Geotechnical EngineeringService: Geotechnical InvestigationsService: Geological Reconnaissance and MappingIndustry: EducationIndustry: HealthcareType: Geotechnical Engineering+44 more

Stewart Engineering, Inc.

Kailua, HI

Responsible, ethical geotechnical engineering with over 35 years of experience

Website1 office1 projects1 leadersFounded 1990Updated Jun 2026

Project: 1000-Acre Phased Development

Service: Geotechnical EngineeringService: Failure InvestigationsService: Expert ConsultingIndustry: ResidentialIndustry: CommercialType: Geotechnical Engineering+2 more

Upaya Pacific LLC

Honolulu, HI

Representing owner interests in the built environment.

Website1 officeUpdated Jun 2026

Service detail: Facility Assessment and Forensic Analysis

Service: Facility Assessment and Forensic AnalysisService: Forensic Engineering & Claim AnalysisService: Code Compliance InspectionsIndustry: AirportsIndustry: AviationType: Civil Engineering+27 more

Wesley R. Segawa and Associates, Inc.

Honolulu, HI

Committed to Quality Performance, Value & Continuous Improvement

WebsitePhone3 offices1 projectsFounded 1981Size Estimate: 25+ employeesUpdated Jun 2026

Project: Hyatt Regency Waikoloa

Service: Civil EngineeringService: Transportation EngineeringService: Educational FacilitiesIndustry: CommercialIndustry: ResidentialType: Civil Engineering+35 more

Yogi Kwong Engineers, LLC

Honolulu, HI

Always Digging Deeper

WebsitePhone1 office5 projects2 leaders14 credentialsFounded 2005

Project: Honouliuli Wastewater Treatment Plant Secondary Treatment, Phase 1B

Service: Geotechnical EngineeringService: Trenchless EngineeringService: Dam RehabilitationIndustry: InfrastructureIndustry: Water SupplyType: Geotechnical Engineering+24 more