Public engineering firm directory

Find engineering consulting firms by capability and location.

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ADV-SOC, Inc.

San Diego, CA

Mission-Driven.

WebsitePhone1 office9 projects2 leadersFounded 2012Updated Jun 2026

Project: Naval Air Station North Island Soil Investigation

Service: Environmental ServicesService: Phase I and Phase II Environmental Site AssessmentsService: Underground Storage Tank Assessment and ClosureIndustry: FederalIndustry: DefenseType: Architecture & Engineering+39 more

AEPC Group, LLC

Santa Clarita, CA

We build confidence

WebsitePhone1 office1 projects4 leadersUpdated Jun 2026

Project: Offset Success for Aviation Client

Service: ArchitectureService: Schematic and Conceptual Design DevelopmentService: Construction Documents and SpecificationsIndustry: AerospaceIndustry: AviationType: Architecture & Engineering+40 more

Axis Infrastructure

Roswell, GA

We Create Cool Places Where People Want to Be

WebsitePhone1 office8 projectsUpdated Jun 2026

Project: MARTA Station Rehabilitation Program

Service: Technical Design and EngineeringService: Civil EngineeringService: Land Planning and Site DevelopmentIndustry: TransitIndustry: CommercialType: Architecture & Engineering+56 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

Chastain & Associates LLC

Creating infrastructure for 70 years.

Website1 projects3 leadersSize Estimate: 80+ employeesUpdated Jun 2026

Project: Village of Oak Park Right-of-Way Permitting Services

Service: Transportation EngineeringService: Expressways, Interstates, Tollways, and HighwaysService: Safety and Feasibility StudiesIndustry: Highways & RoadsIndustry: BridgesType: Civil Engineering+52 more

Colliers Engineering & Design

Holmdel, NJ

Your success is our success; together we shape the spaces that move communities forward.

WebsitePhone1 office8 projects17 leaders8 credentialsSize Estimate: 1,000+ employees

Project: Frank Sinatra Drive Sinkhole & Emergency Seawall Rehabilitation

Service: Architecture & DesignService: Architectural DesignService: Building Engineering SystemsIndustry: CommercialIndustry: Data CentersType: Architecture & Engineering+68 more

D&B Engineers and Architects, DPC

Woodbury, NY

A Legacy Engineered From A Vision

WebsitePhone7 offices8 projects20 leadersFounded 1965Size Estimate: 100-499 employees

Project: Atlantic County Utilities Authority Project

Service: ArchitectureService: Sustainable DesignService: BIM & Technology-Driven DesignIndustry: CommercialIndustry: EducationType: Architecture & Engineering+37 more

DECON Environmental, Inc.

Scotts Valley, CA

Professional engineering, environmental assessment, and industrial hygiene services

WebsitePhone1 office11 projects7 credentialsUpdated Jun 2026

Project: Air Discharge Permitting for 300,000-Gallon Per Day Wastewater Treatment Plant

Service: Demolition Environmental ServicesService: Preparation and Presentation of Demolition Environmental PlansService: Demolition PermittingIndustry: Land DevelopmentIndustry: Food & BeverageType: Environmental Engineering+45 more

DLZ Corporation

Columbus, OH

Innovative Ideas | Exceptional Design | Unmatched Client Service

WebsitePhone1 office9 projects3 leaders5 credentialsSize Estimate: 500+ employees

Project: SR 161 at Maple Canyon Avenue

Service: Transportation EngineeringService: Interchange and Highway DesignService: Bridge Design and RestorationIndustry: Highways & RoadsIndustry: TransportationType: Architecture & Engineering+73 more

Dungan Engineering, P.A.

Columbia, MS

Service. Strength. Solutions.

WebsitePhone4 offices5 leadersSize Estimate: 11-99 employeesUpdated Jun 2026

Service detail: Transportation Engineering

Service: Transportation EngineeringService: Highway and Roadway DesignService: Transportation Infrastructure DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+35 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

Jewell Associates Engineers, Inc.

Spring Green, WI

We help Wisconsin municipalities, businesses, and private owners with their surveying, architecture, and engineering needs

Website5 offices6 projects8 leaders3 credentialsFounded 1993Size Estimate: 50-99 employees

Project: Wollersheim Winery Expansion

Service: Transportation EngineeringService: Highway and Bridge DesignService: Construction Management & InspectionIndustry: TransportationIndustry: Highways & RoadsType: Architecture & Engineering+45 more

LJB Inc.

Lima, OH

Improving the quality of life for the clients, communities and individuals we serve.

Website10 offices5 projects1 leaders4 credentialsFounded 1966Updated Jun 2026

Project: Woodland Avenue Pump Station Rehab

Service: Structural EngineeringService: Tilt-Up Concrete DesignService: Composite Bridge DesignIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+45 more

Lockwood, Andrews & Newnam, Inc.

Houston, TX

Engineering Solutions That Strengthen Communities

WebsitePhone1 officeFounded 1935Size Estimate: 385+ employeesUpdated Jun 2026

Service detail: Education Program Management

Service: Education Program ManagementService: K-12 Bond Program ManagementService: Higher Education Program ManagementIndustry: EducationIndustry: GovernmentType: Civil Engineering+26 more

Meyer Consulting Engineers Corporation

Rockville, MD

Specializing in structural engineering, parking consultation, and construction materials inspection

WebsitePhone2 offices17 projects6 leaders2 credentialsFounded 1968

Project: Fulton Street Transit Center

Service: Structural EngineeringService: Structural Design, New Buildings & BridgesService: Structural Design, Additions & RenovationsIndustry: TransportationIndustry: CommercialType: Structural Engineering+38 more

Milhouse Engineering and Construction, Inc.

Chicago, IL

We deliver creative solutions to complex problems

Website1 office1 projects21 leadersFounded 2001Size Estimate: 500-4,999 employeesUpdated Jun 2026

Project: O'Hare 10 Center

Service: Architectural EngineeringService: Civil EngineeringService: Comprehensive Civil Engineering And Transportation Design ServicesIndustry: AviationIndustry: Oil & GasType: Civil Engineering+31 more

Olokun LLC

Chesapeake, VA

Where Ingenuity Creates Innovation

Website1 office5 projects2 leadersFounded 2021Updated Jun 2026

Project: SeaPort-NxG Prime Contract (N00178-25-D-7641)

Service: Engineering & Technical ServicesService: Naval ArchitectureService: Structural EngineeringIndustry: DefenseIndustry: FederalType: Marine Engineering+28 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

Pape-Dawson Consulting Engineers, LLC

San Antonio, TX

Respect. Integrity. Excellence.

WebsitePhone1 office3 projects15 leaders3 credentialsFounded 1965

Project: Sea World of Texas

Service: Land Development ServicesService: Commercial DevelopmentsService: Residential DevelopmentsIndustry: CommercialIndustry: ResidentialType: Civil Engineering+63 more

Partner Engineering and Science, Inc.

Pasadena, CA

Engineers Who Understand Your Business

WebsitePhone17 offices7 projects11 leadersSize Estimate: 1,500+ employeesUpdated Jun 2026

Project: Adaptive Reuse of North Riverfront Historic Industrial Portfolio

Service: Building Assessments & EngineeringService: Property Condition Assessment ReportsService: Commercial Building InspectionIndustry: CommercialIndustry: Multifamily ResidentialType: Environmental Engineering+53 more

Power of Design Group, LLC

Louisville, KY

Consulting engineering for telecom, site development, fiber and EV infrastructure

WebsitePhone2 offices10 leaders3 credentials1 publicationsFounded 2012

Service detail: Telecom Engineering

Service: Telecom EngineeringService: A&E ServicesService: Structural ServicesIndustry: TelecommunicationsIndustry: Land DevelopmentType: Telecom / RF Engineering+32 more

Prein & Newhof

We See Farther

Website3 projects2 leadersFounded 1970Updated Jun 2026

Project: Bronson's Underground Revival: Tackling Aging Infrastructure Challenges

Service: Water and Wastewater EngineeringService: Water Supply EngineeringService: Wastewater EngineeringIndustry: Water SupplyIndustry: WastewaterType: Civil Engineering+35 more

Ramboll

Bright ideas. Sustainable change.

Website8 projects8 leaders5 credentials3 publicationsFounded 1945Size Estimate: 18,000 employees

Project: Transforming a coal-fired power plant site into a low-carbon digital hub

Service: Engineering and Design ServicesService: Structural EngineeringService: Mechanical and Electrical EngineeringIndustry: Data CentersIndustry: Mission Critical FacilitiesType: Architecture & Engineering+44 more

The Mannik & Smith Group, Inc.

Toledo, OH

Technical Skill. Creative Spirit.

Website3 offices8 projects4 leaders2 credentialsFounded 1955Size Estimate: 50-200 employees

Project: Waterfront Walkway Seawall

Service: Civil EngineeringService: Site DevelopmentService: Stormwater Management & Green InfrastructureIndustry: TransportationIndustry: GovernmentType: Civil Engineering+59 more