Public engineering firm directory

Find engineering consulting firms by capability and location.

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Cornerstone Civil Engineering PLLC

Norman, OK

A key stone on the path to success

WebsitePhone1 office1 leaders4 credentialsFounded 2021Updated Jun 2026

Service detail: Pre-Design

Service: Pre-DesignService: Site Assessment / Feasibility StudyService: Due Diligence AssistanceIndustry: CommercialIndustry: RetailType: Civil Engineering+43 more

Digital Engineering & Imaging Inc.

Kenner, LA

Bettering Communities. Elevating Leaders.

Website4 offices7 projects9 leaders6 credentialsFounded 1990Size Estimate: 50-249 employees

Project: Bogue Falaya Park Shoreline Protection

Service: Transportation EngineeringService: Roads and BridgesService: Transportation PlanningIndustry: TransportationIndustry: Water ResourcesType: Civil Engineering+19 more

EJES Inc

Dallas, TX

Providing Service with Excellence

WebsitePhone5 offices9 projects1 credentialsUpdated Jun 2026

Project: Marine Corps Air Station Iwakuni (MCASI)

Service: Civil EngineeringService: Roadway DesignService: Bridge DesignIndustry: GovernmentIndustry: FederalType: Architecture & Engineering+45 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

JIG Consultants

JIG Consultants is a civil engineering practice specializing in water and wastewater infrastructure for public agencies and private utilities across Southern California. JIG delivers pipeline design, booster station improvements, well equipping, sewer rehabilitation, and lift station work alongside construction management and staff augmentation services. All projects are performed by in-house engineering staff from a single office, managed by senior professional engineers with an emphasis on cost-controlled delivery and individualized client attention.

Website8 projects7 leaders1 credentialsUpdated Jun 2026

Project: Design/Build Fairhaven Transmission Main at SR-55

Service: Water Infrastructure DesignService: Waterline Replacement & RehabilitationService: Booster Station Design & RehabilitationIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+14 more

KLH Engineers, Inc.

Pittsburgh, PA

Large enough to solve big problems. Small enough to care.

WebsitePhone2 offices2 projectsFounded 1982Size Estimate: 60+ employeesUpdated Jun 2026

Project: Allegheny Valley Joint Sewage Authority System-wide Upgrades

Service: Water Supply EngineeringService: Waterline Replacement and ExtensionService: Water Treatment Plant ImprovementsIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+26 more

Keystone Consulting Engineers, Inc.

Bethlehem, PA

Keystone Consulting Engineers, Inc. (KCE) is a multi-discipline civil engineering and surveying firm serving municipalities, authorities, and land developers throughout the greater Lehigh Valley and Pocono regions of Pennsylvania since 1972. With approximately 70 professional engineers, surveyors, and technical staff across three offices, KCE provides municipal engineering, subdivision and land development, surveying, construction inspection, water and wastewater, landscape architecture, environmental and geological services, highway and traffic engineering, GIS, and soil sciences.

WebsitePhone3 offices2 projects5 leaders1 credentialsFounded 1972

Project: Kern Road Bridge Replacement

Service: Municipal EngineeringService: Subdivision and Land DevelopmentService: SurveyingIndustry: GovernmentIndustry: Land DevelopmentType: Civil Engineering+14 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

MSMM Engineering, LLC

Metairie, LA

From Conception to Completion

WebsitePhone4 offices11 projects5 leaders10 credentialsFounded 2011

Project: Morganza to the Gulf - Reach L Levee

Service: Engineering DesignService: Public InfrastructureService: Flood ControlIndustry: FederalIndustry: GovernmentType: Civil Engineering+32 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

Richardson Engineering, PLLC

Benton, AR

Precise and efficient civil engineering and development consulting solutions

WebsitePhone1 office8 projects1 leadersFounded 2013Updated Jun 2026

Project: City of Bryant: Cambridge Drainage Improvement Project

Service: Municipal Water and Wastewater EngineeringService: Waterline Infrastructure DesignService: Treatment Plant and Storage Tank DesignIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+22 more