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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Fehr Graham

Freeport, IL

To improve the communities where our clients live and work.

WebsitePhone12 offices8 projects5 credentialsFounded 1973Size Estimate: 100-500 employees

Project: 11th Street Reconstruction, Rockford

Service: Water and Wastewater EngineeringService: Water supply and treatmentService: Wastewater collection and treatmentIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+45 more

Hampton, Lenzini and Renwick, Inc.

Elgin, IL

Engineering the Success of Our Communities

WebsitePhone4 offices5 projects9 leaders5 credentialsFounded 1965

Project: Tudor Court Street and Streetscape Improvements

Service: Preliminary EngineeringService: Feasibility AnalysisService: Agency CoordinationIndustry: InfrastructureIndustry: GovernmentType: Civil Engineering+52 more

Lochner

Chicago, IL

Trusted Infrastructure Services for Aviation, Transportation, and Water

WebsitePhone1 office8 projects6 leaders4 credentialsFounded 1944

Project: DFW On-Call Signage Implementation Support

Service: AviationService: Airport PlanningService: Airport Engineering and DesignIndustry: AviationIndustry: AirportsType: Civil Engineering+41 more

Robinson Engineering, Ltd.

Frankfort, IL

Beyond Engineering

WebsitePhone1 office14 projectsFounded 1937Size Estimate: 100-499 employeesUpdated Jun 2026

Project: Downtown Streetscape

Service: Municipal EngineeringService: Infrastructure Master PlanningService: Financing & Grant AssistanceIndustry: GovernmentIndustry: TransportationType: Civil Engineering+50 more

SRF Consulting Group, Inc.

Minneapolis, MN

Forward thinking. Consensus driven. People focused.

Website8 offices6 projects8 leaders1 publicationsFounded 1961Size Estimate: 200-500 employees

Project: METRO Green Line LRT Extension, West Segment

Service: Bridges and StructuresService: Bridge design and rehabilitationService: Structural inspectionIndustry: GovernmentIndustry: FederalType: Civil Engineering+56 more

The Upchurch Group Inc

Mattoon, IL

Providing Successful Architecture Solutions Through Creative Design & Applied Wisdom

WebsitePhone1 officeFounded 1968Updated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Architectural DesignService: Construction DocumentsIndustry: CommercialIndustry: EducationType: Architecture & Engineering+101 more

Thouvenot, Wade & Moerchen, Inc. (TWM)

Swansea, IL

Exceptional Service. Nothing Less.

WebsitePhone1 office2 projects13 credentialsSize Estimate: 200+ employeesUpdated Jun 2026

Project: Pierce Terrace Elementary School

Service: Transportation & Traffic EngineeringService: Roadway DesignService: Traffic & Safety StudiesIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+34 more