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.

Filters1

A.W. Schultz Inc.

Shawnee, KS

Trusted Engineering and Integration Since 1977

WebsitePhone1 office3 credentialsFounded 1977Updated Jun 2026

Service detail: Process Control and SCADA Systems

Service: Process Control and SCADA SystemsService: Process Visualization & HMI/OITService: PLC ProgrammingIndustry: Water SupplyIndustry: WastewaterType: Automation & Controls+25 more

AK Consulting Services, Inc.

Jackson Heights, NY

Multidisciplinary Engineering, Special Inspections & Expediting Services

WebsitePhone1 officeUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Structural Design and AnalysisService: Cast-in-Place ConcreteIndustry: CommercialIndustry: RetailType: MEP+81 more

ArcSine Engineering

Redding, CA

The Expert's Expert.

WebsitePhone2 offices4 projects3 credentialsFounded 1978Size Estimate: 25-50 employees

Project: Town of Windsor SCADA System

Service: Electrical EngineeringService: Lighting Design and ModelingService: Power System StudiesIndustry: WastewaterIndustry: Water SupplyType: Automation & Controls+33 more

Astral Engineers P.C.

Rancho Cucamonga, CA

Professional Engineering Services - Mechanical, Electrical, Plumbing, Technology, Fire Protection

WebsitePhone2 offices11 projects3 leaders1 credentials1 publications

Project: Mohs & GI Procedure Room Renovation

Service: Mechanical EngineeringService: Air Handling Unit DesignService: Central Utility PlantsIndustry: HealthcareIndustry: FederalType: MEP+51 more

Drubridge LLC

Jersey City, NJ

P25 Engineering & Project Management Solutions

WebsitePhone1 officeUpdated Jun 2026

Service detail: P25 Engineering Services

Service: P25 Engineering ServicesService: RF Coverage ModelingService: Simulcast, Multicast, and Voting System DesignIndustry: TelecommunicationsIndustry: Public SafetyType: Telecom / RF Engineering+16 more

Field Theory Consulting Inc.

Vernon Hills, IL

Celebrating 40+ Years of Executing Wireless Concepts

WebsitePhone1 office6 projects1 credentialsFounded 1984Size Estimate: 1-25 employees

Project: EMP Hardening

Service: Antenna DesignService: Custom Antenna DesignService: Connectivity SpecializationIndustry: DefenseIndustry: GovernmentType: Telecom / RF Engineering+43 more

Gillespie Prudhon Associates Inc

Clackamas, OR

Engineering Excellence Since 1980

WebsitePhone1 office5 projects1 credentialsFounded 1980Updated Jun 2026

Project: Oregon Coastal Cascade & Willamette Valley Microwave Radio Update

Service: Telecommunications EngineeringService: Transmission EngineeringService: Telecommunications TransportIndustry: FederalIndustry: GovernmentType: Civil Engineering+39 more

Grubb Engineering, Inc.

San Antonio, TX

Electrical Power Systems Design and Testing

WebsitePhone1 office1 credentialsFounded 1981Updated Jun 2026

Service detail: Electrical System Design

Service: Electrical System DesignService: Water and Wastewater Facility Electrical DesignService: Substation, Transmission, and Distribution DesignIndustry: Electric UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+36 more

InteliOPT, Inc.

Superior Quality and Value Telecom & IT Services Company

WebsiteFounded 2008Updated Jun 2026

Service detail: Distributed Antenna Systems (DAS) & Small Cell Solutions

Service: Distributed Antenna Systems (DAS) & Small Cell SolutionsService: i-DAS & o-DAS Site SurveysService: System Design & IntegrationIndustry: TelecommunicationsIndustry: Public SafetyType: Telecom / RF Engineering+29 more

Patti Engineering

Auburn Hills, MI

Modern Solutions for Today's Automation Challenges

WebsitePhone1 office4 projects2 leaders5 credentials5 publications

Project: Siemens S7-1500 and WinCC OA Solution Mitigates Risk in the Textile Industry

Service: Control Systems IntegrationService: PLC and HMI ProgrammingService: Legacy Control System UpgradesIndustry: AutomotiveIndustry: PharmaceuticalType: Automation & Controls+41 more

Scheeser Buckley Mayfield LLC

Uniontown, OH

Simply better.

WebsitePhone2 offices2 projects3 credentials9 publicationsFounded 1959

Project: Aeronautics & Engineering Building Addition

Service: Mechanical EngineeringService: HVAC (Air Conditioning, Heating, Ventilation)Service: Medical Gas Piping and SystemsIndustry: HealthcareIndustry: EducationType: Civil Engineering+83 more

Skywire Design Inc

Richardson, TX

Electrical Design for SATCOM Ground Stations

WebsitePhone1 office4 projectsUpdated Jun 2026

Project: Radome Fire Detection and Shutdown System

Service: Electrical EngineeringService: Power Distribution and Emergency SystemsService: Control Panel EngineeringIndustry: DefenseIndustry: GovernmentType: Electrical Engineering+16 more

Soiled Bits Consulting Services LLC

Program Management and Systems Engineering Support

WebsiteFounded 2017Updated Jun 2026

Service detail: Program and Project Management

Service: Program and Project ManagementService: Earned Value Management and Critical Path AnalysisService: Contract Line Item Number ManagementIndustry: DefenseIndustry: AerospaceType: Defense Engineering+29 more

Timonier Systems

El Segundo, CA

Architect-Led · Defense-Grade · Fixed-Scope

Website1 office3 projects3 leaders6 credentialsUpdated Jun 2026

Project: MILSATCOM Systems Engineering, Integration & Test

Service: SATCOM Systems EngineeringService: Systems Architecture and CONOPSService: RF Chain EngineeringIndustry: DefenseIndustry: GovernmentType: Defense Engineering+23 more

Vincent Enterprises

Rancho Santa Fe, CA

Vincent Enterprises provides engineering and business solutions for the aerospace, defense, national security, consumer electronics, and medical device industries. Established in 2000, the practice delivers independent technical assessments, complex systems consulting, and project execution support. Its expertise spans advanced research, technology roadmapping, and systems engineering for complex public and private sector projects.

Website2 offices4 leaders4 credentialsFounded 2000Updated Jun 2026

Service detail: Engineering & Technical Solutions

Service: Engineering & Technical SolutionsService: Avionics & Aerospace SystemsService: RF & Communication SystemsIndustry: ElectronicsIndustry: AerospaceType: Electrical Engineering+19 more

Wood Harbinger

We solve tough challenges with brilliant engineering and exceptional client service.

Website15 projects1 credentialsSize Estimate: 25-75 employeesUpdated Jun 2026

Project: SR-520 Floating Bridge

Service: Electrical EngineeringService: Power generation, transmission, and distribution systems designService: Electrical system modeling and studiesIndustry: GovernmentIndustry: EducationType: Electrical Engineering+31 more