Public engineering firm directory

Find engineering consulting firms by capability and location.

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3T Design & Development LLC

Kansas City, MO

Air. Land. Water.

WebsitePhone1 office1 leadersFounded 2009Updated Jun 2026

Service detail: Air Quality and Environmental Compliance

Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportService: Regulatory Review and ComplianceIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+25 more

ABNA Engineering, Inc.

St. Louis, MO

Civil & Structural Engineering, Design Services, General Contracting, and Construction Management

WebsitePhone3 offices4 projects11 leaders3 credentialsFounded 1994

Project: Washington Avenue Streetscape Project

Service: Civil EngineeringService: Water Resources EngineeringService: Municipal UtilitiesIndustry: InfrastructureIndustry: TransportationType: Civil Engineering+41 more

Allstate Consultants Llc

Columbia, MO

Engineering Our Community

Website4 officesFounded 1975Updated Jun 2026
Service: Civil EngineeringService: Structural EngineeringService: Water and Environmental EngineeringIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+14 more

Benham, a Haskell Company

Oklahoma City, OK

Tomorrow's Design Since 1909

WebsitePhone6 offices4 projectsFounded 1909Size Estimate: 200-500 employeesUpdated Jun 2026

Project: Osprey Maintenance Hangars

Service: ArchitectureService: EngineeringService: DesignBuildIndustry: InfrastructureIndustry: HealthcareType: Architecture & Engineering+35 more

Benton Engineering

Jacksonville, IL

Partnership. Commitment. Results.

WebsitePhone5 offices9 leaders4 credentialsFounded 1970Size Estimate: 25-100 employees

Service detail: Civil / Site Development

Service: Civil / Site DevelopmentService: Feasibility Studies and Planning ReportsService: Preliminary and Final DesignIndustry: GovernmentIndustry: UtilitiesType: Civil Engineering+52 more

Buchart Horn, Inc.

York, PA

Shaping the built environment with precision, creativity, and purpose since 1945

WebsitePhone9 offices6 projects4 leadersFounded 1945Size Estimate: 100-500 employees

Project: I-40/I-240 Interchange Improvements, Memphis, TN

Service: Water Resources EngineeringService: Wastewater treatment plant engineeringService: Water distribution and collection systemsIndustry: Water ResourcesIndustry: WastewaterType: Architecture & Engineering+41 more

CBB

St. Louis, MO

Expert. Trusted Advisor. Friend.

WebsitePhone3 offices20 projects2 leaders23 credentialsFounded 1973

Project: I-270 North Design-Build

Service: Transportation PlanningService: Transportation Studies and PlanningService: Transportation ModelingIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+11 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

Civil Design, Inc.

St. Louis, MO

Quality Infrastructure. Passionate People. Stronger Communities.

Website6 offices3 projects16 leadersFounded 1996Size Estimate: 100-249 employeesUpdated Jun 2026

Project: Central District Pedestrian Improvements

Service: Infrastructure + AnalyticsService: GIS MappingService: Database ManagementIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+26 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

Crawford, Murphy & Tilly, Inc.

Springfield, IL

Elevating infrastructure, together.

WebsitePhone3 offices9 projects4 leaders5 credentialsFounded 1946

Project: Riverside Drive Riverfront Redevelopment

Service: PlanningService: Aviation PlanningService: Transportation PlanningIndustry: AirportsIndustry: GovernmentType: Aviation Engineering+32 more

Design Nine, Inc.

St. Louis, MO

We Know Railroad

WebsitePhone1 office10 projects11 credentialsFounded 1986Size Estimate: 1-25 employees

Project: Progress Rail Mayfield KY

Service: Railway EngineeringService: Conceptual PlanningService: Track DesignIndustry: RailType: Transportation Engineering+19 more

EFK Moen, LLC

St. Louis, MO

Pioneering Civil Engineering Excellence Since 1998

WebsitePhone5 offices12 projects11 leadersFounded 1998Updated Jun 2026

Project: Manchester Road

Service: Roadway & Highway DesignService: Interstate and Highway DesignService: Maintenance of TrafficIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+17 more

Engineering Surveys & Services

Columbia, MO

Delivering Your Vision

Website1 office4 leadersFounded 1954Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Site Planning & DevelopmentService: Transportation DesignIndustry: CommercialIndustry: IndustrialType: Civil Engineering+40 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

Hart Engineering, LLC

Saint Louis, MO

A St. Louis-Based Multifaceted Civil Engineering Practice

WebsitePhone1 office12 projects2 leaders1 credentialsFounded 2007

Project: Kennerly Road Project

Service: Transportation DesignService: Roadway and Intersection DesignService: Preliminary Layouts and Roadway RehabilitationIndustry: Land DevelopmentIndustry: GovernmentType: Civil Engineering+24 more

Heneghan Associates, Inc.

Jerseyville, IL

Leadership | Experience | Expertise | Relationships | Teamwork

WebsitePhone5 offices13 credentialsFounded 1986Size Estimate: 35 employeesUpdated Jun 2026

Service detail: Water Engineering

Service: Transportation EngineeringService: Water EngineeringService: Distribution Systems (Development & Extensions)Industry: Highways & RoadsIndustry: TransportationType: Civil Engineering+36 more

Horner & Shifrin, Inc.

St. Louis, MO

Horner & Shifrin is a multidisciplinary professional services engineering firm founded in St. Louis in 1933, offering building systems MEP/FP engineering, water and wastewater, transportation, structural, environmental, geospatial, surveying, and construction services. With nine offices across Missouri, Illinois, and Arkansas and repeat client assignments from 80% of its client base, H&S serves education, government, healthcare, emergency services, utilities, and private markets throughout the Midwest.

WebsitePhone9 offices8 leaders2 credentialsFounded 1933Updated Jun 2026

Service detail: Building Services

Service: Building ServicesService: Drinking WaterService: WastewaterIndustry: EducationIndustry: GovernmentType: MEP+32 more

Howe Company, LLC

Macon, MO

Structural and Civil Engineers at Your Service

WebsitePhone1 office3 projects7 credentialsUpdated Jun 2026

Project: Macon Municipal Utilities Sewer Main Relocation

Service: Civil EngineeringService: Water SystemsService: Stormwater & Flood ControlIndustry: GovernmentIndustry: Highways & RoadsType: Civil Engineering+24 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

Hutchison Engineering, Inc.

Jacksonville, IL

Delivering Timely Infrastructure Solutions

WebsitePhone8 officesFounded 1945Updated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Highway, Road, and Street Planning and DesignService: Traffic Planning and ManagementIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+46 more

KPFF Consulting Engineers

Portland, OR

KPFF exists to engineer opportunities that have a positive impact on people, places, and the planet.

Website33 offices5 projectsSize Estimate: 1,000+ employeesUpdated Jun 2026

Project: Portland International Airport (PDX), Terminal Core Redevelopment

Service: Structural EngineeringService: Bridge EngineeringService: Protective DesignIndustry: AviationIndustry: AirportsType: Civil Engineering+39 more

Klingner & Associates, P.C.

Quincy, IL

Solving Complex Problems Through Integrated Design and Engineering

WebsitePhone9 offices1 projects1 leadersFounded 1905Updated Jun 2026

Project: Iles Elementary School

Service: ArchitectureService: Architectural DesignService: Furniture, Fixtures, and EquipmentIndustry: AgricultureIndustry: CommercialType: Architecture & Engineering+43 more

Olsson

Lincoln, NE

Engineering trust.

Website10 offices5 projects10 leaders16 credentials2 publicationsFounded 1956

Project: Baylor Scott & White Medical Center and Clinic in Pflugerville

Service: Civil & Site EngineeringService: Site Design and DevelopmentService: Land SurveyingIndustry: CommercialIndustry: ResidentialType: Civil Engineering+39 more