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

Fuhrmann Engineering Inc.

Springfield, IL

Providing timely, cost-effective, sustainable engineering solutions through long-term relationships

WebsitePhone4 offices1 credentialsUpdated Jun 2026

Service detail: Bridge Engineering

Service: Bridge EngineeringService: Bridge design (new construction and retrofit)Service: NBIS and element-level bridge inspectionIndustry: BridgesIndustry: Highways & RoadsType: Transportation Engineering+36 more

Greene & Bradford, Inc.

Springfield, IL

Civil, structural, surveying and municipal engineering in Springfield

WebsitePhone1 office2 leaders1 credentialsFounded 1972Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Land and Site DevelopmentService: Roadway and Site DevelopmentIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+28 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

Hurst-Rosche, Inc.

Hillsboro, IL

Founded in 1937 and headquartered in Hillsboro, Illinois, Hurst-Rosche is a total in-house, multi-discipline architecture and engineering practice with six offices across Illinois, Missouri, and Tennessee. Bringing together architecture, civil, structural, mechanical, electrical, geotechnical, environmental, and surveying capabilities under one roof, it delivers planning, design, and construction-related services on projects ranging from school performing arts centers and water treatment plants to transportation infrastructure and institutional facilities. Projects have earned Illinois Capital Development Board Thomas Madigan Awards, AIA Design Awards, and ACEC Excellence Awards.

WebsitePhone6 offices6 projects3 leaders4 credentialsFounded 1937

Project: Murphysboro High School Performing Arts Center

Service: ArchitectureService: Educational Facility DesignService: Government & Institutional Facility DesignIndustry: EducationIndustry: GovernmentType: Architecture & Engineering+37 more

Kuhn & Trello Consulting Engineers, LLC

Springfield, IL

Kuhn & Trello Consulting Engineers, LLC is a multi-discipline civil and structural engineering firm based in Springfield, Illinois, providing practical and sustainable engineering solutions for municipal, structural, transportation, land development, surveying, and hydrology projects. Kuhn & Trello Consulting Engineers, LLC serves both public and private sector clients across central Illinois with a full staff of licensed engineers, surveyors, and technical professionals.

WebsitePhone1 office2 leadersUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Municipal EngineeringService: Land SurveyingIndustry: GovernmentIndustry: TransportationType: Civil Engineering+8 more

Russell W Martin Engineering P C

Springfield, IL

Consulting engineering and land surveying services for Central Illinois

WebsitePhone1 office8 projects2 leadersFounded 1982Updated Jun 2026

Project: Domino's Pizza Jacksonville

Service: Civil EngineeringService: Public Sector EngineeringService: Civil Site DesignIndustry: CommercialIndustry: RetailType: Civil Engineering+22 more

Tecma Associates, Inc.

Schaumburg, IL

Civil Engineering, Surveying & Construction Management

WebsitePhone2 offices5 projects1 credentialsFounded 1994Updated Jun 2026

Project: IDOT Jane Byrne Interchange Reconstruction

Service: Construction Management and InspectionService: Resident EngineeringService: Phase III Construction EngineeringIndustry: Highways & RoadsIndustry: BridgesType: Civil Engineering+14 more

WHKS & Co.

Mason City, IA

Developing People. Creating Solutions. Shaping the Horizon.

WebsitePhone8 offices3 projects2 leaders10 credentialsFounded 1948

Project: Bushel Boy Farms Development

Service: Transportation EngineeringService: Bridges and Highway StructuresService: RoadwaysIndustry: Highways & RoadsIndustry: BridgesType: Civil Engineering+33 more