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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2 Bravo Group LLC

We make sure buildings work

Website6 projectsUpdated Jun 2026
Service: Building CommissioningService: Design and submittal reviewIndustry: FederalType: MEP+20 more

28 Gorilla Engineering

Chandler, AZ

Ruggedized product engineering for the field and the future.

WebsitePhone1 office8 projects
Service: Mechanical Engineering DesignService: Assembly-aware mechanical designIndustry: DefenseType: Defense Engineering+51 more

2IM Group, LLC

Chicago, IL

2IM Group, LLC is a Chicago-based civil, environmental, and transportation engineering practice. Now part of MacKay, it continues to deliver technical solutions across highways, roads, streets, aviation, rail, transit, utilities, and stormwater management systems while offering expanded resources and broader geographic reach.

WebsitePhone1 office5 projects
Service: Highways, Roads, and StreetsService: Roadway geometryIndustry: TransportationType: Civil Engineering+31 more

3-Tier Alaska

Fairbanks, AK

Civil & Environmental Engineering, Surveying

WebsitePhone3 officesUpdated Jun 2026
Service: Civil EngineeringService: Septic System Design and TestingIndustry: ResidentialType: Civil Engineering+21 more

316 Product Development, LLC

Passionate and Creative

Website6 projects6 leadersSize Estimate: 1-9 employees
Service: Mechanical EngineeringService: Advanced Computer Aided Design (CAD)Industry: Medical DevicesType: Mechanical Engineering+36 more

3Bears Technical Services

Hixson, TN

Experts in Nuclear Operations and Waste Management Solutions

WebsitePhone1 office2 credentials
Service: Engineering and Project ManagementService: Mechanical EngineeringIndustry: NuclearType: Environmental Engineering+33 more

3D Design & Engineering

Houston, TX

Innovation, Integrity & Quality - All of your A&E, Surveying and Utility Locating needs under one roof.

WebsitePhone1 office4 projects
Service: A&E ServicesService: Site Feasibility StudiesIndustry: Oil & GasType: Architecture & Engineering+32 more

3D Engineering Solutions, LLC

Cincinnati, OH

Measuring & Modeling Quality

WebsitePhone1 office2 credentials
Service: 3D Laser Scanning & DigitizingService: Short Range 3D Laser ScanningIndustry: AerospaceType: Materials Testing+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

3U Technologies, LLC

Conroe, TX

Business consultant services engineered to withstand any condition

WebsitePhone1 office2 projects
Service: International Business ConsultingService: Market analysesIndustry: Oil & GasType: Marine Engineering+40 more

3jk Engineering Consultants Llc

Espanola, NM

Solving demanding technical problems through engineering, analysis, prototyping, and testing.

WebsitePhone1 office1 leaders
Service: Engineering and DesignService: Custom Equipment Engineering and DesignIndustry: Oil & GasType: Acoustic Consulting+32 more

4D Tech Solutions, LLC

Fairmont, WV

Mission-Driven Design and Development

WebsitePhone1 office5 projects
Service: Technology DevelopmentService: MEMS-Mirror LiDAR SystemsIndustry: DefenseType: Aerospace Engineering+21 more

5D Architecture & Engineering, PLLC

Lynbrook, NY

Full-Service Architecture & Engineering Design

WebsitePhone1 office9 projects
Service: Architectural DesignService: Programming and Master PlanningIndustry: ResidentialType: Architecture & Engineering+24 more

7NT Enterprises, LLC

Miamisburg, OH

Proper Execution with Precision

WebsitePhone1 office9 projects
Service: Drilling ServicesService: Rock Coring and Soil SamplingIndustry: WastewaterType: Geotechnical Engineering+21 more

A & M Engineering and Environmental Services, Inc.

Tulsa, OK

Providing Quality Services for Over 30 Years

WebsitePhone4 offices5 projects
Service: Construction & Remediation ServicesService: Landfill ConstructionIndustry: Environmental & RemediationType: Environmental Engineering+74 more

A&A Consultants Inc

McKees Rocks, PA

Specializing in geotechnical, structural, and civil engineering excellence

WebsitePhone3 offices7 projects
Service: Bridge Design and InspectionsService: Bridge DesignIndustry: TransportationType: Civil Engineering+24 more

A&B Foundry, Machining, and Fabrications

Franklin, OH

Engineering Excellence + Inspiring Innovation

WebsitePhone1 officeUpdated Jun 2026
Service: CastingsService: Air Set MoldingIndustry: AerospaceType: Industrial Engineering+32 more

A-Line Corrosion Services LLC

Indianola, IA

Cathodic Protection / Corrosion Specialist

WebsitePhone1 office7 projects
Service: Cathodic Protection EngineeringService: Cathodic Protection SurveysIndustry: Oil & GasType: Materials Engineering+12 more

A-Tech/Northwest, Inc.

Get an unbiased answer! Our only business is Roof Consulting

Website10 credentialsFounded 1976Updated Jun 2026
Service: Roof ConsultingService: Visual Roof InspectionsIndustry: GovernmentType: Materials Testing+16 more

A.M. Engineering

Elko, NV

Civil Engineering, Surveying, and Project Management Services in Nevada

WebsitePhone2 offices1 projects
Service: Civil EngineeringService: Streets and Highway DesignIndustry: GovernmentType: Civil Engineering+47 more

A.T.E. Solutions, Inc.

El Segundo, CA

When All Systems Must be Ready to Go

WebsitePhone2 offices1 projects
Service: Test Engineering ConsultingService: Automated Test Equipment SelectionIndustry: ElectronicsType: Electrical Engineering+25 more

A1 Consulting Group, Inc.

Raleigh-Durham, NC

Leaders in Design, Construction, and Environmental Services

WebsitePhone1 office8 projects
Service: Engineering and Design ServicesService: Geotechnical and Geological EngineeringIndustry: AirportsType: Civil Engineering+43 more

A2e Technologies

San Diego, CA

Electronic Design Built for Critical Programs

WebsitePhone1 office9 projects
Service: Electronics Design ServicesService: Hardware DesignIndustry: DefenseType: Electrical Engineering+26 more

AAA Structural Engineering Inspection & Evaluation Services

Honolulu, HI

AAA Structural Engineering Inspection & Evaluation Services is a consulting structural engineering firm in Maui and Honolulu, Hawaii, offering structural engineering services throughout the Hawaiian Islands. AAA Structural Engineering specializes in structural inspection and evaluation of existing structures, design and rehabilitation of shoreline protection structures including seawalls, and forensic structural engineering investigations including expert testimony in judicial proceedings.

WebsitePhone1 office11 projects
Service: Structural Engineering Analysis & DesignService: Structural design for remodeling and renovationIndustry: MarineType: Structural Engineering+26 more