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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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

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.E. Hodsdon Consulting Engineers

Waterville, ME

Leaders in professional engineering for over 40 years

WebsitePhone1 office1 projects
Service: EngineeringService: Water Systems DesignIndustry: GovernmentType: Civil Engineering+33 more

AED Energy Services

Wyomissing, PA

Designing America's Energy Lifelines

WebsitePhone4 offices9 leaders
Service: Chemical and Process DesignService: Documentation and AnalysisIndustry: Oil & GasType: Chemical Engineering+66 more

AGPROfessionals

Greeley, CO

Professional problem-solvers achieving clients' goals and advocating their success

WebsitePhone2 offices4 projects
Service: Agricultural EngineeringService: Site SelectionIndustry: AgricultureType: Civil Engineering+57 more

AIM Engineering & Surveying, Inc.

Fort Myers, FL

Innovative Engineering Solutions Since 1980

WebsitePhone5 offices8 projects
Service: Transportation Engineering & DesignService: RoadwaysIndustry: TransportationType: Transportation Engineering+35 more

ARM Group LLC

Hummelstown, PA

Precise. Responsive. Solutions.

WebsitePhone1 office1 projects
Service: Civil Engineering & Land SurveyingService: Site Planning & EntitlementIndustry: CommercialType: Automation & Controls+54 more

ARRO Consulting, Inc.

Lititz, PA

Your trusted partner for municipal engineering.

WebsitePhone13 offices8 projects
Service: Civil & MunicipalService: Appointed Engineer representationIndustry: GovernmentType: Civil Engineering+52 more

ATALA ECR, Inc.

El Cajon, CA

Staffing - Construction - Remediation

WebsitePhone1 office1 credentials
Service: Project StaffingService: Construction SuperintendentsIndustry: FederalType: Environmental Engineering+26 more

ATOKA, Inc.

Hot Springs, AR

Engineering and Environmental Consultants

WebsitePhone2 offices1 projects
Service: Civil EngineeringService: Strategic Planning and Land UseIndustry: Environmental & RemediationType: Civil Engineering+44 more

AULtec, Inc.

Gaithersburg, MD

Professional Civil Engineering and Land Surveying Services

Website1 office5 projects2 leaders
Service: Civil EngineeringService: Site & Land DevelopmentIndustry: GovernmentType: Civil Engineering+21 more

Abysmal Corporation LLC

Integrated Engineering, Environmental, and IT Solutions for Efficiency, Safety, and Sustainability

Website6 projectsUpdated Jun 2026
Service: Engineering ServicesService: Chemical EngineeringIndustry: Environmental & RemediationType: Environmental Engineering+24 more

Accura Engineering and Consulting Services, Inc.

Atlanta, GA

Providing comprehensive engineering, construction, and construction management services.

WebsitePhone3 offices8 leaders
Service: Federal ServicesService: Defense Program SupportIndustry: FederalType: Civil Engineering+32 more

Adico, LLC

Friendswood, TX

Texas Civil Engineering Professionals

WebsitePhone1 office3 projects
Service: Civil EngineeringService: Site DevelopmentIndustry: EducationType: Civil Engineering+42 more

Advance Engineering & Construction

Stone Mountain, GA

Design. Build. Sustain. Deliver.

Website1 officeUpdated Jun 2026
Service: Transportation EngineeringService: Construction Engineering & InspectionsIndustry: GovernmentType: Civil Engineering+23 more

Advanced Environmental Engineering Inc

Civil, environmental, and municipal engineering solutions

Website3 credentialsUpdated Jun 2026
Service: Integrated Solid Waste ManagementService: Integrated Solid Waste Master PlansIndustry: GovernmentType: Civil Engineering+44 more

Advanced Resources International, Inc.

Arlington, VA

Pioneering the Past. Innovating the Future.

WebsitePhone3 offices13 projects
Service: Unconventional Oil & GasService: Shale Gas and Tight Oil Resource AssessmentIndustry: Oil & GasType: Petroleum Engineering+22 more

Advantus Engineers

Pittsburgh, PA

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.

WebsitePhone1 office7 projects
Service: Building CommissioningService: Design and Submittal AnalysisIndustry: GovernmentType: MEP+42 more

Alliance Consulting, Inc.

Beaver, WV

Professional Consulting Services

WebsitePhone2 offices6 projects
Service: Civil EngineeringService: Site Development ServicesIndustry: MiningType: Civil Engineering+55 more

Allied Companies L L C

Washington, DC

Program Integration for Complex Infrastructure at Scale.

Website2 offices1 leadersUpdated Jun 2026
Service: Environmental ConsultingService: Addressing Regulatory RequirementsIndustry: WastewaterType: Environmental Engineering+28 more

Amentum

Chantilly, VA

Advancing the Future Together

Website1 office3 projects1 credentials
Service: Mission ModernizationService: Space SystemsIndustry: DefenseType: Aerospace Engineering+22 more

Anderson Engineering Consultants, Inc.

Little Rock, AR

Specializing in Geotechnical/Environmental Engineering and Quality Assurance/Control Testing

WebsitePhone2 offices5 credentials
Service: Geotechnical EngineeringService: Field InvestigationIndustry: InfrastructureType: Geotechnical Engineering+13 more

Anez Consulting Inc.

Willmar, MN

Grow Your Agribusiness. Reduce Your Stress.

WebsitePhone1 office2 projects
Service: Civil and Agricultural EngineeringService: Animal Housing DesignIndustry: AgricultureType: Civil Engineering+26 more

Apex Companies Llc Or

Rockville, MD

Shaping a safe, sustainable, and equitable future.

Website1 office1 credentialsFounded 1988
Service: EnvironmentalService: Health and SafetyIndustry: AerospaceType: Environmental Engineering+45 more