Public engineering firm directory

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Allgeier, Martin and Associates, Inc.

Joplin, MO

It's not just business...it's personal.

WebsitePhone6 offices17 projects20 leaders39 credentialsFounded 1954

Project: Route 66 Bridge

Service: Civil EngineeringService: BridgesService: IntersectionsIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+33 more

CJW Transportation Consultants, LLC

Springfield, MO

Trusted. Experienced. Client Focused.

WebsitePhone1 office8 leadersUpdated Jun 2026

Service detail: Land Development

Service: Land DevelopmentService: Subdivision Layout and DesignService: Commercial Site DesignIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+18 more

Cook, Flatt & Strobel Engineers

Topeka, KS

One Vision. One Team. One Call.

Website7 officesFounded 1961Updated Jun 2026

Service detail: Transportation

Service: TransportationService: Roadway and Highway DesignService: Complete StreetsIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+37 more

DuBois & King

Randolph, VT

DuBois & King is a multidisciplinary professional consulting practice providing planning, engineering, survey, permitting, and environmental services since 1962. Its technical disciplines span civil, structural, environmental, mechanical, and electrical engineering, surveying, and landscape architecture. D&K serves federal and state agencies, municipalities, healthcare and education facilities, industrial and commercial buildings, housing developments, and energy sector clients. Operating as a 100 percent entity, it focuses on delivering collaborative, sustainable, and resilient solutions for municipal and regional infrastructure across New England, New York, and the Southwest.

WebsitePhone12 offices5 projects3 leaders11 credentialsFounded 1962

Project: Glencliff Micro-Hydro

Service: PlanningService: Transportation EngineeringService: Bicycle and Pedestrian InfrastructureIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+36 more

Dufresne Group Consulting Engineers

Springfield, VT

Developing Solutions for Environmental Challenges

WebsitePhone3 offices3 leaders6 credentialsFounded 1999Size Estimate: 10-20 employees

Service detail: Water Engineering

Service: Water EngineeringService: Water Treatment DesignService: Water Distribution DesignIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+20 more

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

Great River Engineering

Springfield, MO

Listen, Plan, Communicate, and Deliver

Website6 officesFounded 1997Size Estimate: 95+ employeesUpdated Jun 2026

Service detail: Water Services

Service: Water ServicesService: StormwaterService: Drinking WaterIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+23 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

OWN, Inc.

Springfield, MO

Engineering Beyond.

WebsitePhone10 offices6 projects21 leadersFounded 1954Size Estimate: 100-499 employees

Project: Springfield Fire Station No. 13

Service: Civil EngineeringService: Structural EngineeringService: Land SurveyingIndustry: Land DevelopmentIndustry: InfrastructureType: Civil Engineering+10 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

TREKK Design Group

Kansas City, MO

Clean Water. Safe Roads. Improving Lives.

WebsitePhone4 offices2 leaders8 credentialsFounded 2002Size Estimate: 100-499 employees

Service detail: Asset Management & GIS

Service: Asset Management & GISService: System InventoryService: Data CollectionIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+29 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

Toth and Associates

Springfield, MO

Full-service consulting engineering specializing in electric utility engineering, structural engineering, civil engineering, land surveying, and GIS.

WebsitePhone5 offices10 leaders1 credentialsFounded 2003Size Estimate: 150-250 employees

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Electrical System PlanningService: Electrical Substation DesignIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Civil Engineering+38 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