Public engineering firm directory

Find engineering consulting firms by capability and location.

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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

Andrews Engineering Inc.

Springfield, IL

Andrews Engineering Inc. is a full-service, multi-disciplinary engineering organization serving clients in Illinois, Indiana, and Missouri for more than 40 years. Integrity, commitment, and quality are at the core of every engagement, and the firm delivers innovative, practical, and cost-effective solutions across geotechnical, environmental, civil, water resources, and remediation engineering disciplines. Andrews Engineering operates five offices across the Midwest: Springfield and Pontiac and Lombard in Illinois, Indianapolis in Indiana, and Warrenton in Missouri.

WebsitePhone5 officesUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Environmental ServicesService: Remediation ServicesIndustry: InfrastructureIndustry: Environmental & RemediationType: Civil Engineering+11 more

Antero Group

Chicago, IL

Authentic partnerships are the best way to design and deliver projects that create lasting value.

WebsitePhone4 offices5 projects6 leadersUpdated Jun 2026

Project: Barry County Broadband Assessment and Implementation Plan

Service: Civil EngineeringService: Site DevelopmentService: Construction Engineering and ManagementIndustry: TransportationIndustry: GovernmentType: Civil Engineering+47 more

Bowser-Morner, Inc.

Dayton, OH

Bowser-Morner is an engineering, testing, and consulting firm founded in 1911 that serves businesses throughout the Midwest with geotechnical engineering, civil engineering, environmental services, construction support, and laboratory testing. With offices in Dayton and Toledo, Ohio and Springfield, Illinois, Bowser-Morner provides subsurface explorations, field and laboratory testing, and engineering expertise for clients across Ohio, Indiana, Kentucky, and Illinois.

WebsitePhone3 officesFounded 1911Updated Jun 2026

Service detail: Engineering & Environmental Services

Service: Engineering & Environmental ServicesService: Geotechnical EngineeringService: Civil EngineeringIndustry: TransportationIndustry: GovernmentType: Geotechnical Engineering+17 more

Brierley Associates Corporation

Englewood, CO

Creating Space Underground

WebsitePhone20 offices4 projects6 leaders11 credentialsUpdated Jun 2026

Project: Champlain Hudson Power Express Trenchless Crossings

Service: Tunneling EngineeringService: Trenchless EngineeringService: Horizontal Directional Drilling (HDD)Industry: Water SupplyIndustry: WastewaterType: Geotechnical Engineering+20 more

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 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

Chicago Testing Laboratory

Warrenville, IL

Delivering expertise and accuracy for over a century

Website4 offices5 credentialsFounded 1912Updated Jun 2026

Service detail: Construction Materials Testing

Service: Construction Materials TestingService: Asphalt & Asphalt Materials TestingService: Concrete TestingIndustry: InfrastructureIndustry: TransportationType: Materials Testing+9 more

Cleanera Technologies Inc

Naperville, IL

Engineering a Sustainable Future with Safe, Innovative Solutions

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Project Concept DevelopmentService: Pre-Feasibility Studies and ReportsIndustry: HealthcareIndustry: HospitalityType: Architecture & Engineering+75 more

DAMA Consultants, Inc.

Chicago, IL

Transportation Engineering, Traffic Engineering, and Transportation Planning

WebsitePhone1 office7 projects17 credentials2 publicationsFounded 2010

Project: IDOT District 1 Databank Management Consultant (IHIS)

Service: Traffic Planning and EngineeringService: Traffic Signal Design and TimingService: Traffic Forecasting and Impact AssessmentsIndustry: TransportationIndustry: Highways & RoadsType: Transportation Engineering+26 more

Dearborn Companies

Bridgeview, IL

No Limits. No Compromise.

WebsitePhone1 office3 projects2 leaders3 credentials3 publications

Project: Lift in Windy City

Service: Heavy Lift and Heavy Transport EngineeringService: Ground Condition SurveysService: Ground Stabilization DesignIndustry: Power GenerationIndustry: PetrochemicalType: Civil Engineering+31 more

Engineering Systems Inc.

Scottsdale, AZ

Multidisciplinary Expertise. Industry Insight.

Website22 offices4 projects4 leadersSize Estimate: 200-1,000 employeesUpdated Jun 2026

Project: Uncovering the Truth Behind a Toy Archery Injury

Service: Accident ReconstructionService: Motor Vehicle Accident ReconstructionService: Industrial and Workplace Incident AnalysisIndustry: AgricultureIndustry: MiningType: Chemical Engineering+57 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

GSG Consultants, Inc.

Schaumburg, IL

Shaping the Midwest Since 1992

WebsitePhone2 offices2 leaders1 credentialsFounded 1992Size Estimate: 100-499 employees

Service detail: Environmental Engineering

Service: Environmental EngineeringService: Natural ResourcesService: NEPA and Regulatory ComplianceIndustry: BridgesIndustry: EducationType: Civil Engineering+38 more

GZA GeoEnvironmental, Inc.

Norwood, MA

Solving Complex Challenges in Natural and Built Environments

WebsitePhone35 offices4 projectsSize Estimate: 800 employeesUpdated Jun 2026

Project: Upper Roberts Meadow Reservoir Dam Breach and Stream Restoration Project

Service: Geotechnical EngineeringService: Environmental Site Investigation and RemediationService: Environmental Site InvestigationIndustry: AgricultureIndustry: IndustrialType: Geotechnical Engineering+29 more

Geocon Professional Services Llc

Frankfort, IL

Client Care. Built on Trust.

Website1 office1 credentialsFounded 1999Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Subsurface Exploration and EvaluationsService: Soil Drilling and TestingIndustry: CommercialIndustry: EducationType: Geotechnical Engineering+14 more

Goodheart & Associates, PLLC

Oak Brook, IL

Infrastructure Engineering

WebsitePhone1 office5 projects1 leaders4 credentialsSize Estimate: 1-4 employees

Project: Regional Distribution Center Potash Storage Facility

Service: Program ManagementService: Project Management and CoordinationService: Owner's Representative ServicesIndustry: ManufacturingIndustry: IndustrialType: Civil Engineering+52 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

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

Kaskaskia Engineering Group, LLC

Belleville, IL

Exceptional, innovative, and comprehensive engineering and contracting solutions

WebsitePhone1 office5 projects2 leadersUpdated Jun 2026

Project: Troy O'Fallon Road Bridge Replacement

Service: Civil EngineeringService: Comprehensive Civil DesignService: Planning Services Tailored To MunicipalIndustry: GovernmentIndustry: FederalType: Civil Engineering+67 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

Marino Engineering Associates, Inc.

St. Louis, MO

Advanced Geotechnical, Subsidence, and Forensic Engineering

WebsitePhone3 offices1 leadersUpdated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Shallow & Deep FoundationsService: Earth Retaining SystemsIndustry: MiningIndustry: Oil & GasType: Geotechnical Engineering+35 more

Midwest Testing Services Inc.

Peru, IL

Midwest Testing Services Inc. is a family-owned geotechnical engineering and construction testing firm serving Peru, Illinois and seven surrounding counties since 1969. Using AASHO and ASTM testing standards, it provides geotechnical assessments, environmental assessments, and construction site testing services for builders, contractors, municipalities, and realtors throughout the region.

WebsitePhone1 officeFounded 1969Updated Jun 2026

Service detail: Geotechnical Engineering

Service: Geotechnical EngineeringService: Environmental AssessmentService: Phase I Environmental Site AssessmentIndustry: GovernmentIndustry: Land DevelopmentType: Geotechnical Engineering+6 more

Modjeski and Masters, Inc.

Mechanicsburg, PA

One of the world's leading bridge engineering practices

WebsitePhone19 offices7 projects2 leaders2 credentialsFounded 1893

Project: Hawk Falls Bridge Replacement

Service: Bridge DesignService: Fixed Bridge DesignService: Movable Bridge DesignIndustry: BridgesIndustry: TransportationType: Structural Engineering+26 more