Public engineering firm directory

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CDF Engineering LLC

Wailuku, HI

Civil Engineering | Land Surveying | General Contracting | Consulting

WebsitePhone1 office1 leaders1 credentialsUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Stormwater ManagementService: Major and Minor Grading Design PlansIndustry: CommercialIndustry: Land DevelopmentType: Civil Engineering+35 more

CJSeto Support Services, LLC

Ventura, CA

CJSeto Support Services, LLC is an environmental compliance, safety, information technology, logistics, and workforce training firm headquartered in Ventura, California. Founded in 1999, CJSeto holds ISO 9001:2015 certification and serves federal agencies, educational institutions, healthcare providers, and commercial clients. Its environmental practice covers hazardous waste management, EPA and RCRA compliance, NEPA documentation, spill prevention planning, environmental monitoring and remediation, and asbestos and lead monitoring. Its safety and industrial hygiene practice encompasses OSHA compliance audits, indoor air quality testing, chemical inventory management, respiratory protection, and hazard assessments. Additional service areas include IT infrastructure, cybersecurity and information assurance, logistics and inventory management, and professional training including HAZWOPER, OSHA, and EPA compliance courses. Federal clients include the U.S. Navy, Department of Homeland Security, NASA, and the Veterans Administration.

WebsitePhone1 office1 credentialsFounded 1999Updated Jun 2026

Service detail: Environmental Compliance

Service: Environmental ComplianceService: Hazardous Waste ManagementService: Environmental Monitoring and SamplingIndustry: FederalIndustry: DefenseType: Environmental Engineering+22 more

Civil Design & Engineering, Inc.

Flagstaff, AZ

Building tomorrow's infrastructure, today

WebsitePhone2 officesFounded 1996Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Stormwater ManagementService: LOMR (Letter of Map Revision)Industry: ResidentialIndustry: CommercialType: Civil Engineering+20 more

Envirospec Engineering, PLLC

Albany, NY

Engineering and Environmental Services for the Public and Private Sectors

WebsitePhone1 office1 leadersFounded 2007Updated Jun 2026

Service detail: Environmental Services

Service: Environmental ServicesService: Site Assessment and CharacterizationService: Soil and Groundwater RemediationIndustry: ChemicalsIndustry: GovernmentType: Environmental Engineering+16 more

Lund Opsahl

Seattle, WA

Communities Built by Inspired Engineering

WebsitePhone1 office11 projects9 leaders4 credentials2 publications

Project: Pinnacle Peak Fire Lookout

Service: Building Structural DesignService: Design-Build Structural EngineeringService: Progressive Design-BuildIndustry: GovernmentIndustry: CommercialType: Structural Engineering+39 more

S & A Environmental Consultants, LLC

Williamsburg, VA

Federal environmental engineering and compliance support

WebsitePhone1 office1 leaders3 credentialsSize Estimate: 1-5 employeesUpdated Jun 2026

Service detail: Environmental Compliance

Service: Environmental ComplianceService: Water Quality AssessmentService: Hazardous Waste CharacterizationIndustry: DefenseIndustry: FederalType: Environmental Engineering+35 more

Volta Integrator

Engineering Your Future

Website1 projectsUpdated Jun 2026

Project: Electric Truck Jack

Service: Product DesignService: Virtual PrototypingService: Sustainability AnalysisIndustry: IndustrialIndustry: Consumer ProductsType: Electrical Engineering+26 more

Wetherill Engineering, Inc.

Raleigh, NC

Providing quality work through dedication, thoroughness, and technical excellence.

WebsitePhone3 offices4 projects3 leaders1 credentialsFounded 1993

Project: Wilcox Bridge Inspections and Repair Recommendations

Service: Transportation / Roadway EngineeringService: Roadway designService: Highway and freeway designIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+50 more