Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

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3 Rocks Engineering & Surveying

CaƱon City, CO

Colorado Civil, Structural, & Land Surveying Experts

WebsitePhone3 offices9 projects
Service: Civil EngineeringService: Residential and Commercial Site DevelopmentIndustry: CommercialType: Civil Engineering+30 more

3D Innovations, LLC

Honolulu, HI

Developing Ideas From Concept To Product

WebsitePhone1 office5 projects
Service: Product Design & EngineeringService: 3D CAD Design & VisualizationIndustry: AerospaceType: Mechanical Engineering+16 more

ADCOMM Engineering LLC

Woodinville, WA

We Bridge The Gap Between Operations and Technology.

WebsitePhone2 offices1 credentials
Service: Systems EngineeringService: Public Safety Systems EngineeringIndustry: Public SafetyType: Owner's Engineer+32 more

ADX Research, Inc.

Schaumburg, IL

Innovative Solutions, Exceptional Performance

WebsitePhone1 office6 leaders
Service: System DesignService: Power Electronics System DesignIndustry: ElectronicsType: Electrical Engineering+16 more

Achates Power, Inc.

San Diego, CA

Fundamentally Better Engines

WebsitePhone2 offices4 projects
Service: Opposed-Piston Engine Technology LicensingService: Engine Design LicensingIndustry: AutomotiveType: Mechanical Engineering+16 more

Aerospace Structural Research Corp

Milford, CT

Transforming Ideas into Reality with Engineering Expertise

WebsitePhone1 officeFounded 1995
Service: Engineering Design ServicesService: Computer-Aided Design (CAD)Industry: AerospaceType: Aerospace Engineering+47 more

Apex PetroConsultants LLC

Where Deep Ethylene Expertise Meets Strategic Decision-Making

Website7 projects1 leaders2 publications
Service: Project Development and Execution OversightService: Independent Technology SelectionIndustry: PetrochemicalType: Chemical Engineering+22 more

Appendix R Solutions Inc

Hanover, VA

Providing unique multi-disciplinary engineering solutions

WebsitePhone1 office1 projects
Service: Fire Protection EngineeringService: Fire ModelingIndustry: NuclearType: Fire Protection Engineering+27 more

Argis Solutions, Inc.

Aurora, CO

The no-nonsense spatial partner.

Website1 office5 projects1 leaders
Service: GIS Assessments & System Health ChecksService: Services for ArcGIS OnlineIndustry: GovernmentType: Software Engineering+15 more

Arnold & Associates, Inc.

Roswell, GA

Arnold & Associates, Inc. (A&A) is an Operations and Maintenance (O&M) engineering consulting practice founded in 1988 and based in Roswell, Georgia. It provides professional engineering, training, technical O&M consulting, and staff support services. Its capabilities serve industrial and utility systems, steam and electric power generation, building HVAC systems, and similar facility operations. The practice specializes in the efficient management and utilization of personnel, energy, rotating equipment, boilers, steam and combustion turbines, and diesel-engine-driven components. It also offers technical recruiting, energy conservation surveys, and professional power engineering licensing preparation seminars.

Website1 office2 credentialsFounded 1988
Service: Operations & Maintenance ConsultingService: Procedures Review and UpdatingIndustry: Power GenerationType: Mechanical Engineering+31 more

Arrow North Surveying, LLC

Greenville, SC

Arrow North Surveying, LLC is a professional land surveying and mapping firm based in Greenville, South Carolina, serving residential and commercial clients across South Carolina, North Carolina, Georgia, Florida, and Alabama. Led by a Registered Professional Land Surveyor, the firm handles every aspect of a project from initial boundary survey through final municipal approval. Arrow North Surveying offers a full suite of surveying services including ALTA/ACSM surveys, topographic surveys, FEMA elevation certificates, utility locating and mapping, construction layout, subdivision recording, and geomatics engineering.

WebsitePhone1 office1 leaders
Service: Commercial and Residential Land SurveysService: Lot Design and Master PlanningIndustry: ResidentialType: Land Surveying+20 more

Associated Consulting Engineering, Inc.

Sioux Falls, SD

Associated Consulting Engineering, Inc. (ACEI) is a consulting engineering firm based in Sioux Falls, South Dakota, providing mechanical and electrical systems design since 1987. ACEI offers integrated MEP engineering services for the design of plumbing, fire protection, HVAC, building automation, lighting, power, sound, and communication systems for public and private clients across a broad spectrum of residential, commercial, industrial, and institutional project types. The team is professionally registered in South Dakota, North Dakota, Iowa, Wisconsin, Nebraska, and Minnesota, with additional state licensing available upon request.

WebsitePhone1 officeFounded 1987
Service: Mechanical DesignService: HVACIndustry: ResidentialType: MEP+35 more

Big Little Sensor Company

Phoenix, AZ

Establishing world-leading expertise in little-radar technology.

Website1 office7 leaders12 publications
Service: Radar IP Licensing & Co-DevelopmentService: IP LicensingIndustry: HealthcareType: Telecom / RF Engineering+12 more

Birchrun Labs

Birchrunville, PA

Making the Aspirational Real

Website1 office3 projects3 leaders
Service: Piezoelectric Materials and Component EngineeringService: High-Temperature Ceramic MaterialsIndustry: DefenseType: Mechanical Engineering+19 more

Blair, Church & Flynn Consulting Engineers

Clovis, CA

Service. Quality. Integrity.

WebsitePhone6 offices3 leaders
Service: Planning, Permitting & ConsultingService: Alternatives AnalysesIndustry: Power GenerationType: Civil Engineering+74 more

Bluestone Environmental Group, Inc.

Malvern, PA

Environmental Engineering & Consulting Services

WebsitePhone5 offices8 projects
Service: Remediation SolutionsService: CERCLA and RCRA InvestigationsIndustry: Environmental & RemediationType: Environmental Engineering+20 more

CHA Consulting, Inc.

Albany, NY

Finding a better way.

Website1 office10 leaders3 credentials
Service: Transportation SolutionsService: Accelerated Bridge Construction (ABC) Design & ConsultingIndustry: TransportationType: Architecture & Engineering+184 more

CJL Engineering, Inc.

Shelton, CT

Results you can count on

WebsitePhone1 office1 leaders
Service: Mechanical EngineeringService: Design Of HeatingIndustry: CommercialType: MEP+46 more

CMT Services Group

West Conshohocken, PA

CMT Services Group is a geotechnical engineering, materials testing, and construction special inspection firm based in West Conshohocken, Pennsylvania, serving clients throughout the Tri-State region (Pennsylvania, New Jersey, and Delaware). CMT provides geotechnical consulting, construction materials testing, ICC code special inspections, forensic investigation and non-destructive testing, environmental consulting, and AASHTO-accredited laboratory testing for commercial, healthcare, education, government, industrial, hospitality, and multifamily residential projects.

WebsitePhone1 office1 credentials
Service: Geotechnical EngineeringService: Construction Materials TestingIndustry: CommercialType: Geotechnical Engineering+14 more

Casco Bay Engineering Inc

Portland, ME

Providing Exceptional Quality, Service, and Value to Clients and Communities

WebsitePhone2 offices10 projects
Service: Structural EngineeringService: Structural Design and AnalysisIndustry: EducationType: Structural Engineering+13 more

Chang Robotics, LLC

Jacksonville, FL

Cutting-edge engineering & robotics customized for your workforce.

Website1 office8 projects9 leaders
Service: Robotics & Automation System DesignService: Feasibility Studies & Technology AssessmentIndustry: ManufacturingType: Automation & Controls+35 more

DGT Associates

Boston, MA

Cutting-edge Technology, Rooted in a Legacy of Excellence

WebsitePhone3 offices6 projects
Service: Land SurveysService: ALTA/NSPS Land Title SurveysIndustry: CommercialType: Land Surveying+56 more

DeMase Technical Services

Secure. Compliant. Resilient.

Website8 leaders2 credentialsUpdated Jun 2026
Service: Cybersecurity and Information TechnologyService: CMMC and C3PAO ServicesIndustry: DefenseType: Environmental Engineering+20 more

Dhelo LLC

Engineering communication networks worldwide since 1991

Website8 projectsFounded 1991Updated Jun 2026
Service: Network Engineering ServicesService: Network RolloutIndustry: TelecommunicationsType: Software Engineering+21 more