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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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

Bloom Companies, LLC

Milwaukee, WI

Bloom Companies, LLC is an engineering, architecture, and construction management practice founded in 1998 in Milwaukee, Wisconsin. Established by Mathew Tharaniyil, the organization initially focused on bridge and structural engineering, eventually expanding to cover transportation, architecture, electrical and controls, and design-build delivery. It has grown through key acquisitions, including Hay Dobbs in 2024 and Jendusa Design Build in 2025, and serves academic, municipal, transportation, industrial, and utility clients across multiple US offices and international locations.

WebsitePhone7 offices15 projects1 leaders12 credentialsFounded 1998

Project: Historic West Kilbourn Avenue Bascule Bridge Rehabilitation

Service: Bridge EngineeringService: New Bridge DesignService: Condition InspectionIndustry: BridgesIndustry: RailType: Civil Engineering+57 more

Bruner, Cooper & Zuck, Inc.

Galesburg, IL

Engineers, Architects & Land Surveyors

WebsitePhone3 offices6 projects2 credentialsUpdated Jun 2026

Project: Cardinal Point Wind Farm

Service: Engineering and ArchitectureService: Civil EngineeringService: Structural EngineeringIndustry: CommercialIndustry: RetailType: Architecture & Engineering+36 more

C.C. Johnson & Malhotra, P.C.

Baltimore, MD

Provide the Highest Level of Service to Our Clients While Delivering Value

WebsitePhone6 offices16 projects8 leadersFounded 1979Size Estimate: 50-100 employees

Project: 540 West Madison

Service: Buildings and FacilitiesService: HVAC Systems DesignService: Electrical Power and LightingIndustry: CommercialIndustry: RetailType: Civil Engineering+58 more

CDG Engineers, Inc.

St. Louis, MO

Engineering a better way.

WebsitePhone4 offices2 projects1 leadersFounded 1992Size Estimate: 100+ employees

Project: Cedar Rapids Reach 1 Flood Protection

Service: Architectural EngineeringService: Civil EngineeringService: Flood ProtectionIndustry: UtilitiesIndustry: Electric UtilitiesType: Civil Engineering+22 more

Chamlin & Associates

Peru, IL

Shaping communities with integrity, expertise, and purpose.

WebsitePhone3 offices2 projects4 leaders1 credentialsFounded 1952

Project: Spring Valley Wastewater Treatment Plant

Service: Land SurveysService: Boundary SurveysService: Construction LayoutIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+35 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

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

Delta Engineering Group, LLC

Chicago, IL

Engineering a Better Tomorrow

WebsitePhone1 office4 projects8 credentialsFounded 1987Updated Jun 2026

Project: Metra Consolidated Control Facility

Service: Civil EngineeringService: Roads and StreetsService: FreewaysIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+50 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

GFT Infrastructure, Inc.

Chicago, IL

Ingenuity That Shapes Lives

WebsitePhone12 offices10 projects10 leaders8 credentials3 publications

Project: O'Hare International Airport Terminal 5 Expansion

Service: Transportation EngineeringService: Roadway Planning and EngineeringService: High-Availability Transit FacilitiesIndustry: TransportationIndustry: BridgesType: Architecture & Engineering+43 more

HBK Engineering, LLC

Chicago, IL

A Proven Leader in Utility Engineering

WebsitePhone29 offices6 credentialsFounded 1998Size Estimate: 900+ employeesUpdated Jun 2026

Service detail: Electrical Utility Infrastructure Design

Service: Electrical Utility Infrastructure DesignService: Transmission and distribution line designService: Substation designIndustry: Electric UtilitiesIndustry: Power GenerationType: Environmental Engineering+48 more

Henry Meisenheimer Gende Incorporated

Breese, IL

Integrated Infrastructure Solutions

Website5 offices4 projects20 leadersFounded 1966Updated Jun 2026

Project: Mater Dei Athletic Track and Field

Service: Civil EngineeringService: Site EngineeringService: Surveying and GeomaticsIndustry: GovernmentIndustry: TransportationType: Civil Engineering+21 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

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

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

Mesa Associates, Inc.

Madison, AL

Engineers and Consultants

WebsitePhone18 offices2 leadersFounded 1988Size Estimate: 1,000+ employeesUpdated Jun 2026

Service detail: Engineering & Design Services

Service: Engineering & Design ServicesService: 3D ModelingService: UAV InspectionIndustry: IndustrialIndustry: ManufacturingType: Civil Engineering+18 more

Primera Engineers, Ltd.

Chicago, IL

People-forward engineering design and consulting services

WebsitePhone5 offices4 projects16 leaders17 credentialsFounded 1987

Project: U.S. Navy Great Lakes Bachelor Enlisted Quarters

Service: Buildings EngineeringService: Mechanical EngineeringService: Electrical EngineeringIndustry: EducationIndustry: HealthcareType: Aviation Engineering+40 more

Proficio Consultancy

Lisle, IL

Project Leadership · Engineering · Design

WebsitePhone4 officesFounded 2012Updated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Project and Program ManagementService: Front End LoadingIndustry: IndustrialIndustry: ManufacturingType: Process Engineering+89 more

RTM Engineering Consultants

Schaumburg, IL

National resources, local relationships.

WebsitePhone1 office7 credentialsFounded 1981Size Estimate: 537 employeesUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Refrigeration DesignService: Process EngineeringIndustry: CommercialIndustry: HealthcareType: MEP+39 more

Salazar Technical Services LLC

Cicero, IL

Expert Consulting Services in Engineering, Construction and Project Management

Website1 office1 leadersSize Estimate: 2-20 employeesUpdated Jun 2026

Service detail: Project Management & Consulting

Service: Project Management & ConsultingService: Turnkey Project ManagementService: Industrial Engineering ConsultingIndustry: Food & BeverageIndustry: PharmaceuticalType: Civil Engineering+24 more

Sargent & Lundy

Chicago, IL

Bright ideas, real solutions.

WebsitePhone1 office3 projects4 leaders4 credentialsFounded 1891

Project: San Francisco BART Battery Storage Feasibility Study

Service: Nuclear PowerService: New Reactor LicensingService: Extended Power UprateIndustry: NuclearIndustry: Power GenerationType: Power & Utility Engineering+34 more

V3 Companies

Chicago, IL

The Vision to Transform with Excellence

Website14 offices7 projects15 leaders2 credentialsFounded 1983Updated Jun 2026

Project: Elgin O'Hare Western Access Project

Service: Land DevelopmentService: Site Civil EngineeringService: Environmental ConsultingIndustry: CommercialIndustry: EducationType: Civil Engineering+49 more

Willett, Hofmann & Associates, Inc.

Dixon, IL

Serving clients Ethically, Responsively and Professionally

WebsitePhone9 offices5 projects33 leaders16 credentialsFounded 1935

Project: Captain Swift Timber Covered Bridge

Service: Structural EngineeringService: Bridge DesignService: Bridge RatingsIndustry: Land DevelopmentIndustry: CommercialType: Architecture & Engineering+74 more