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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18 Grados Corp

San Juan, PR

18 Grados Design is a multidisciplinary design-build architecture and engineering practice based in Puerto Rico, specializing in contemporary design and comprehensive project development. Founded in 2013, the practice delivers a diverse range of services encompassing architecture, civil and structural engineering, permitting, and construction management. It supports projects across multiple sectors, ranging from custom single-family residences to complex retail expansions and mixed-use developments. By integrating design and construction under a single collaborative framework, 18 Grados Design streamlines the execution of both small-scale renovations and large-scale commercial developments.

Website1 office6 projects3 leaders
Service: ArchitectureService: DesignIndustry: ResidentialType: Architecture & Engineering+25 more

1836 Engineering LLC

Fort Worth, TX

Founded in Texas, by Texans.

WebsitePhone2 offices13 projects
Service: Construction Engineering & InspectionService: Contract AdministrationIndustry: Highways & RoadsType: Civil Engineering+32 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 Rocks Engineering & Surveying

Cañon City, CO

Colorado Civil, Structural, & Land Surveying Experts

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

3T Design & Development LLC

Kansas City, MO

Air. Land. Water.

WebsitePhone1 office1 leaders
Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportIndustry: TransportationType: Civil Engineering+27 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

3mg P S C

Designing Spaces. Engineering Solutions. Delivering Excellence

Website14 projects18 leadersUpdated Jun 2026
Service: ArchitectureService: Master PlansIndustry: CommercialType: Architecture & Engineering+50 more

4M Research, Inc.

Huntsville, AL

4M Research, Inc., headquartered in Huntsville, AL since 2010, specializes in engineering, enterprise solutions, and operations and logistics services across the DoD and NASA sectors. 4M provides quality engineering support to a wide variety of customers as both a prime contractor and a subcontractor. Its team of technical professionals is dedicated to supporting the business and mission goals of clients, with a portfolio of high-end technical skills and substantial past performance.

Website1 office1 leadersUpdated Jun 2026
Service: EngineeringService: Systems Engineering and AnalysisIndustry: AerospaceType: Aviation Engineering+14 more

4site Advisors Inc

We get it: Your vision. Your values. Results.

Website9 projectsUpdated Jun 2026
Service: Owner's RepresentationService: Communication ManagementIndustry: CommercialType: Owner's Engineer+28 more

50 States Engineering Corp.

Hackensack, NJ

Benefit from an innovative and diverse range of surveying and engineering experience.

WebsitePhone1 office7 projects
Service: Land SurveyingService: Construction layout and stakeoutIndustry: TransitType: Civil Engineering+30 more

5020 Engineering Resource Group, Incorporated

Civil, Water Resources, and Environmental Engineering Services

Website4 leaders1 credentialsFounded 2022
Service: Water and Wastewater EngineeringService: Water and Wastewater Conveyance SystemsIndustry: Water ResourcesType: Civil Engineering+21 more

5FOLD Engineering

Seminole, FL

Precision Unfolded. Mission Ready.

WebsitePhone1 office2 projects
Service: Design EngineeringService: Design for Manufacturing & SustainabilityIndustry: DefenseType: Mechanical Engineering+34 more

609 Consulting, LLC

Sheridan, WY

Engineering Excellence Delivering High-Quality Engineering, Surveying & Consulting Services to the Rocky Mountain Region

WebsitePhone4 offices8 leaders
Service: Civil EngineeringService: Road Engineering DesignIndustry: Oil & GasType: Civil Engineering+27 more

83 Ordinal Group

Pine Bluff, AR

Innovative Agritech & Engineering Solutions

WebsitePhone1 officeSize Estimate: 1-10 employees
Service: Agritech and Renewable Energy EngineeringService: Agrivoltaics and Clean Energy IntegrationIndustry: Renewable EnergyType: Owner's Engineer+24 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 Civil Group, LLC

Columbia, MO

Civil Engineering, Land Planning and Surveying Services for Developers in Columbia, Boone County, and Mid-Missouri

WebsitePhone1 office7 projects
Service: Civil EngineeringService: Land Development for Residential, Commercial and Industrial UsesIndustry: Land DevelopmentType: Civil Engineering+43 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&A Engineering

Toledo, OH

Innovative, Trusted Structural Engineering Since 1996

WebsitePhone1 office11 leaders
Service: Core StructuresService: Metal BuildingsIndustry: CommercialType: Civil Engineering+26 more

A&J Consulting Engineering Services, P.C.

Clifton, NJ

A&J Consulting Engineering Services, P.C. is a full-service MEP consulting engineering practice headquartered in Clifton, New Jersey. Founded in 1988 by Jay Agarwal, P.E., A&J delivers mechanical, electrical, and plumbing systems design, pharmaceutical validation and commissioning, construction administration, sustainable design, and high-technology systems consulting. Clients span the pharmaceutical, biotechnology, commercial, educational, governmental, industrial, and religious sectors across the New York-New Jersey region.

WebsitePhone1 office5 projects
Service: MEP Systems DesignService: HVACIndustry: PharmaceuticalType: MEP+42 more

A&M Consulting Engineers

Visalia, CA

Moving Our Communities Infrastructure Forward

WebsitePhone2 offices3 projects
Service: Water ResourcesService: Hydraulic AnalysisIndustry: GovernmentType: Civil Engineering+46 more

A-Tech Consulting, Inc.

Orange, CA

Creating A Safer Tomorrow, Today

WebsitePhone4 offices7 leaders
Service: Industrial HygieneService: Asbestos Survey and ConsultingIndustry: Environmental & RemediationType: Environmental Engineering+23 more