Public engineering firm directory

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Brumbaugh Engineering & Surveying, LLC

West Milton, OH

Brumbaugh Engineering & Surveying, LLC (BES) is a professional civil engineering and land survey consulting firm serving Ohio, eastern Indiana, and northern Kentucky from its office in West Milton, Ohio. BES provides civil engineering, structural engineering, construction layout, and professional land surveying services to a diverse client base that includes general contractors, architects, utility companies, municipalities and townships, schools, financial institutions, parks and recreation departments, and the private sector.

WebsitePhone1 officeFounded 1972Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Roadway & Highway DesignService: Sanitary Sewer & Waterline DesignIndustry: GovernmentIndustry: EducationType: Civil Engineering+17 more

Collins Engineers, Inc.

Chicago, IL

Building Tomorrow's Infrastructure, Today

WebsitePhone1 office11 projects1 leaders4 credentialsFounded 1979

Project: The 606 - Chicago, IL

Service: Civil EngineeringService: Site PlanningService: Utility DesignIndustry: CommercialIndustry: RetailType: Civil Engineering+56 more

GeoTech Engineering, Inc.

Morrisdale, PA

Providing concise and cost-effective engineering solutions

WebsitePhone3 offices2 credentialsFounded 1996Updated Jun 2026

Service detail: Civil/Site Engineering

Service: Civil/Site EngineeringService: Commercial, Industrial and Retail Site DevelopmentService: Residential Site Feasibility StudiesIndustry: MiningIndustry: Oil & GasType: Civil Engineering+39 more

Harms Engineering, Inc.

Pasco, WA

Authentic, Reachable, and Practical Engineering Solutions

WebsitePhone1 office5 projectsFounded 1980Updated Jun 2026

Project: Pasco Fire Station

Service: Civil EngineeringService: Subdivision and Short-Plat Planning and Infrastructure DesignService: Civil Site Plans for Public and Private ProjectsIndustry: GovernmentIndustry: Public SafetyType: Civil Engineering+76 more

Holtzen Engineering Group P.C.

Enid, OK

Holtzen Engineering Group P.C. is a civil and structural engineering practice serving architects, owners, and municipalities across Oklahoma and surrounding states. Holtzen Engineering Group provides structural design for residential, commercial, institutional, and government buildings, as well as civil engineering services focused on land development, site utilities, drainage, and roadway improvements. Primary service territory for land development spans Northwestern and North Central Oklahoma from Woodward to Stillwater and from Oklahoma City to the Kansas border.

WebsitePhone1 office2 leadersUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Apartment complexesService: Affordable housingIndustry: CommercialIndustry: ResidentialType: Structural Engineering+30 more

IMS Engineers, Inc.

Moving Communities Forward

Website10 projects5 leadersFounded 1996Updated Jun 2026

Project: Dembidolo-Mughi-Road Upgrading Project

Service: Transportation EngineeringService: Route Studies and Schematic DesignService: Roadway and Highway DesignIndustry: GovernmentIndustry: FederalType: Civil Engineering+27 more

Integrated Logistical Support, Inc.

New Orleans, LA

ILSI Engineering (Integrated Logistical Support, Inc.) is a New Orleans-based civil engineering practice with decades of experience in civil, structural, and mechanical engineering. It delivers a comprehensive range of services including sewer and drainage design, coastal protection management, water resource management, and program and construction management. ILSI Engineering has contributed to major infrastructure projects across Louisiana, including the Southeast Louisiana Urban Flood Control Project and the Louis Armstrong New Orleans International Airport Capital Improvement Program.

WebsitePhone1 office5 projects3 leadersSize Estimate: 50-99 employeesUpdated Jun 2026

Project: Southeast Louisiana Urban Flood Control Project (SELA)

Service: Water Resource ManagementService: Stormwater & Runoff ManagementService: Sewer & Water InfrastructureIndustry: GovernmentIndustry: FederalType: Civil Engineering+19 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

MS2R Engineering, LLC

Houston, TX

Innovating Today, Inspiring Tomorrow.

WebsitePhone3 offices9 projects5 credentialsUpdated Jun 2026

Project: Northeast Water Purification Plant Expansion

Service: Structural EngineeringService: Building Structural DesignService: Infrastructure Structural DesignIndustry: CommercialIndustry: ResidentialType: Civil Engineering+21 more

Mitsunaga & Associates, Inc.

Honolulu, HI

Dedicated to Enhancing Hawaii's Built Environment

WebsitePhone1 office5 leaders6 credentialsUpdated Jun 2026

Service detail: Architecture

Service: ArchitectureService: Commercial ArchitectureService: Educational FacilitiesIndustry: EducationIndustry: GovernmentType: Architecture & Engineering+37 more

Prudent Engineering, LLP

East Syracuse, NY

Transforming Infrastructure with Passion and Kindness

WebsitePhone1 office12 projects3 leaders6 credentialsSize Estimate: 25-50 employees

Project: Court Street Dam Rehabilitation Engineer of Record Services

Service: Bridge and Structural DesignService: Superstructure and Substructure DesignsService: Water Control Structure DesignsIndustry: GovernmentIndustry: TransportationType: Civil Engineering+52 more