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.

Filters3

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

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

Alper Audi, Inc.

St. Louis, MO

Founded in 1950, Alper Audi, Inc. is a St. Louis-based structural engineering practice with engineers registered in more than 45 states. It serves architects, contractors, developers, owners, and government clients across commercial, industrial, institutional, and public markets. More than 50 percent of assignments are delivered on a design-build basis, and annual project volume contributes to more than $2.5 billion in aggregate construction value.

WebsitePhone2 offices13 projects8 leadersFounded 1950Updated Jun 2026

Project: Forsyth Pointe

Service: Structural EngineeringService: Reinforced Concrete DesignService: Structural Steel DesignIndustry: CommercialIndustry: IndustrialType: Structural Engineering+18 more

Apex Engineers, Inc.

Kansas City, MO

Your Engineering Partner in Projects Large and Small

WebsitePhone7 offices1 projects8 leadersFounded 2003Size Estimate: 50+ employees

Project: Multi-Sector Structural Engineering Portfolio

Service: Structural DesignService: Commercial Structural DesignService: Residential Structural DesignIndustry: CommercialIndustry: RetailType: Structural Engineering+26 more

Apex Structural Engineering

Creve Coeur, MO

Innovate. Design. Build.

WebsitePhone2 offices4 leadersUpdated Jun 2026

Service detail: Accelerated Project Delivery (APD)

Service: Accelerated Project Delivery (APD)Service: Building Design & AnalysisService: Connection Design & Stair EngineeringIndustry: CommercialIndustry: ResidentialType: Structural Engineering+8 more

Bob D. Campbell & Company

Kansas City, MO

Innovative Structural Engineering with Practical Solutions

WebsitePhone1 office1 projects2 leaders6 credentialsFounded 1957

Project: USAF Cadet Chapel Restoration

Service: Structural EngineeringService: Structural DesignService: InvestigationsIndustry: HealthcareIndustry: EducationType: Structural Engineering+16 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

CCS Group

Chesterfield, MO

Specialized, client-focused structural engineering and construction management services.

Website1 office10 projectsFounded 1997Updated Jun 2026

Project: MLGW Water Quality Assurance Lab

Service: Structural EngineeringService: Structural Renovation and RetrofittingService: Seismic Performance EngineeringIndustry: HealthcareIndustry: Data CentersType: Structural Engineering+13 more

CSE Engineering, LLC

Wentzville, MO

Economic, code-compliant, and constructible structural engineering solutions

WebsitePhone1 office1 leaders7 credentialsSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Structural Engineering & Design

Service: Structural Engineering & DesignService: Building Design and AdditionsService: Connection and Seismic DesignIndustry: ResidentialIndustry: CommercialType: Forensic Engineering+16 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

Crockett Engineering Consultants

Columbia, MO

Crockett Engineering Consultants is a multi-discipline engineering and land surveying firm headquartered in Columbia, Missouri, serving clients across the country. Founded in 1985 as a civil engineering and surveying practice, Crockett expanded into structural engineering in 2009 and opened Crockett Geotechnical Testing Lab in 2013 to add geotechnical engineering and construction materials testing. Projects span single-family and multifamily residential developments, commercial and retail sites, educational facilities, manufacturing operations, and institutional clients.

WebsitePhone1 office7 leadersFounded 1985Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Civil site designService: Parking lot designIndustry: ResidentialIndustry: Land DevelopmentType: Civil Engineering+77 more

David Mason + Associates

St. Louis, MO

Exceptional Engineering. Innovative Construction Services. Dedicated to Our People.

WebsitePhone7 offices7 projectsFounded 1989Size Estimate: 100-250 employeesUpdated Jun 2026

Project: Jefferson National Expansion Memorial - Gateway Arch Grounds Renovations

Service: Civil EngineeringService: Structural EngineeringService: Survey and 3D ScanningIndustry: HealthcareIndustry: EducationType: Civil Engineering+20 more

DuBois Consultants, Inc.

Kansas City, MO

Commitment, Collaboration, Cooperation

WebsitePhone3 offices5 projectsFounded 1988Updated Jun 2026

Project: Dry Weather Sewer Relief: Outfall 055

Service: Civil Engineering & DesignService: Sewer SystemsService: Stormwater ManagementIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+26 more

EDM Incorporated

St. Louis, MO

Reliable Creative Engineering Solutions

WebsitePhone2 offices9 projects10 leaders2 credentialsFounded 1973

Project: The St. Louis Wheel at Union Station

Service: Structural EngineeringService: Commercial and Industrial StructuresService: Theme Park and Ride FoundationsIndustry: Sports & RecreationIndustry: CommercialType: Civil Engineering+35 more

Frontenac Engineering Group Inc

St. Louis, MO

We Design Solutions

WebsitePhone1 office5 projects5 leaders9 credentialsFounded 1980

Project: Nestle Purina - Danforth Learning Center

Service: Civil EngineeringService: Civil Engineering Services Tailored For BuildingService: Land DevelopmentIndustry: CommercialIndustry: RetailType: Civil Engineering+35 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

JS Smith Consulting Engineers, P.C.

Joplin, MO

Industry Experts for Over 30 Years

WebsitePhone1 office3 leadersFounded 1982Updated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Steel structuresService: Reinforced concrete structuresIndustry: CommercialIndustry: EducationType: Structural Engineering+7 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

Larson Engineering

Appleton, WI

Build on what we know.

WebsitePhone13 offices9 projects1 credentialsFounded 1979Size Estimate: 100-500 employees

Project: Sphere at the Venetian Resort

Service: Structural EngineeringService: Building StructuresService: Structural Design Review and Peer EvaluationIndustry: AgricultureIndustry: CommercialType: Civil Engineering+46 more

Leigh + O'Kane

Lee's Summit, MO

A structural engineering firm focused on solving complex challenges through collaboration, responsiveness, and dependable execution.

WebsitePhone1 office10 projects3 leadersFounded 1986Size Estimate: 5-50 employees

Project: Kansas Speedway

Service: Structural DesignService: New Building Structural SystemsService: Construction EngineeringIndustry: Public SafetyIndustry: GovernmentType: Structural Engineering+17 more