Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

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

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

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

ACR Engineering, Inc.

Austin, TX

ACR Engineering, Inc. is an Austin-based mechanical, electrical, plumbing (MEP), and energy engineering practice established in 1980. The practice specializes in energy management, HVAC and control systems design, commissioning, and energy saving performance contracting. Its engineers collaborate directly with building owners from initial concept through construction and commissioning to optimize efficiency and minimize operating costs.

WebsitePhone3 offices4 projects
Service: Energy Management and ConsultingService: Energy Cost Control and Performance ContractingIndustry: GovernmentType: MEP+12 more

ADAPT Technology

Auburn Hills, MI

Engineering from Concept to Production

WebsitePhone2 offices1 projects
Service: Engineering DesignService: CAD/CAE DesignIndustry: AerospaceType: Mechanical Engineering+29 more

AENY Engineering P.C.

Northport, NY

Cost Effective Engineering

WebsitePhone2 officesUpdated Jun 2026
Service: Naval Architecture and Marine EngineeringService: Vessel Design and Construction SupportIndustry: AirportsType: Naval Architecture+29 more

AK Consulting Services, Inc.

Jackson Heights, NY

Multidisciplinary Engineering, Special Inspections & Expediting Services

WebsitePhone1 officeUpdated Jun 2026
Service: Structural EngineeringService: Structural Design and AnalysisIndustry: CommercialType: MEP+83 more

AKS Engineering & Forestry

Tualatin, OR

Practical Solutions. Designed to Last.

WebsitePhone1 officeFounded 1996
Service: Civil EngineeringService: Site Design & GradingIndustry: InfrastructureType: Civil Engineering+37 more

AMP Optics LLC

Blue-Sky to Reality

Website6 publicationsFounded 2010Updated Jun 2026
Service: Optical Design and EngineeringService: Advanced Optical DesignIndustry: AerospaceType: Electrical Engineering+28 more

ANZ Consulting Engineering

New York, NY

Engineering The Future

Website1 office1 credentialsUpdated Jun 2026
Service: MEP & Fire Protection EngineeringService: Mechanical SystemsIndustry: CommercialType: MEP+21 more

ARC Defense

Contract engineering, consulting, and manufacturing for military and government sectors

Website2 leadersUpdated Jun 2026
Service: ManufacturingService: Component AssemblyIndustry: DefenseType: Defense Engineering+20 more

ARPE Engineering, LLC

Coral Gables, FL

Trusted Expertise in Mechanical, Electrical and Plumbing Engineering Design

WebsitePhone1 office10 projects
Service: Electrical Engineering ServicesService: Lighting DesignIndustry: ResidentialType: MEP+33 more

ATCO EnviroAir Testing Engineers, Inc.

Plano, TX

ATCO EnviroAir Testing Engineers, Inc. is a mechanical engineering firm in Plano, Texas specializing in HVAC testing, adjusting, and balancing (TAB) and building systems commissioning for the Dallas-Fort Worth metropolitan area. With more than 36 years of experience, it delivers independent engineering evaluations and certified reports that verify HVAC systems and MEP installations perform at design specifications in new and existing facilities.

WebsitePhone1 office2 credentials
Service: Testing, Adjusting, and BalancingService: Building Systems CommissioningIndustry: CommercialType: Mechanical Engineering+2 more

Aari Engineering LLC

Wylie, TX

Innovative and sustainable engineering solutions

Website1 office9 projectsUpdated Jun 2026
Service: MEP DesignService: HVAC and Mechanical SystemsIndustry: CommercialType: MEP+18 more

Abraxas Energy Consulting

Energy Efficiency & Building Energy Audits

Website5 projects1 credentials2 publications
Service: Energy ConsultingService: Commercial Energy AuditsIndustry: CommercialType: Mechanical Engineering+29 more

AccuTec Services, Inc.

Lee's Summit, MO

Precision commissioning, testing, and cleanroom certification services nationwide.

WebsitePhone1 office2 leaders
Service: Building Systems CommissioningService: Design Phase Commissioning & ReviewIndustry: HealthcareType: MEP+24 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

Acker & Associates

Green Bay, WI

Consulting engineering, audits and analysis

WebsitePhone1 office4 projects
Service: Condensation & Moisture AnalysisService: Building Water Vapor TransmissionIndustry: Pulp & PaperType: Mechanical Engineering+25 more

Adley Services, LLC

Lafayette, LA

Onshore or offshore. Upstream, midstream, or downstream.

WebsitePhone1 office4 leaders
Service: Facilities Engineering and DesignService: Offshore and Onshore Facilities DesignIndustry: Oil & GasType: Process Safety Engineering+29 more