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.

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50 States Engineering Corp.

Hackensack, NJ

Benefit from an innovative and diverse range of surveying and engineering experience.

WebsitePhone1 office7 projects3 leaders1 credentialsUpdated Jun 2026

Project: Admiration Foods Facility

Service: Land SurveyingService: Construction layout and stakeoutService: 3D laser scanningIndustry: TransitIndustry: RailType: Civil Engineering+28 more

AEED, Inc.

Chattanooga, TN

Sustainable, Innovative Engineering Solutions

WebsitePhone1 office2 credentialsFounded 2001Updated Jun 2026

Service detail: Engineering, Consulting and Design

Service: Engineering, Consulting and DesignService: Mechanical EngineeringService: Clean Room Design and CommissioningIndustry: CommercialIndustry: HospitalityType: MEP+53 more

Abonmarche Consultants, Inc.

Many Disciplines One Team

Website2 projects10 credentials2 publicationsFounded 1979Size Estimate: 200-250 employeesUpdated Jun 2026

Project: Haven Hollow Park Improvements

Service: Civil EngineeringService: Stormwater ManagementService: Utility EngineeringIndustry: GovernmentIndustry: InfrastructureType: Architecture & Engineering+57 more

Advanced Research and Engineering Integrated Solutions LLC

Niceville, FL

Engineering solutions for unmanned and embedded systems

WebsitePhone1 office1 leadersFounded 2010Updated Jun 2026

Service detail: Unmanned Systems Engineering

Service: Unmanned Systems EngineeringService: Unmanned Aerial VehiclesService: Sensors and PayloadsIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+23 more

Air Resource Specialists, Inc.

Fort Collins, CO

A leader in the field of air quality for over 40 years.

Website1 office8 projects1 leaders2 credentials3 publicationsSize Estimate: 35 employees

Project: National Park Service Air Quality Conditions & Trends Website

Service: Air MonitoringService: Criteria Pollutants MonitoringService: Toxics & Hazardous Air PollutantsIndustry: GovernmentIndustry: FederalType: Environmental Engineering+33 more

Alico Systems, Inc.

San Diego, CA

Alico Systems is an innovative product development practice that designs solutions for consumer, industrial, government, and military markets. Its expertise spans mobile wireless computing platforms for image, voice, video, and data communications, alongside phased array beam steered antennas, RF transceivers, microprocessor and FPGA electronics, and wireless sensor networks for remote monitoring and control. Key systems include mobile satellite communications terminals, VoIP PBX systems, broadband wireless networks, and motion sensor platforms.

WebsitePhone1 office1 projects2 credentialsUpdated Jun 2026

Project: SAXBA Distributed Broadband SATCOM On-The-Move Terminal

Service: Systems EngineeringService: Communications and Network EngineeringService: Systems Integration of Mobile Wireless and Satellite NetworksIndustry: DefenseIndustry: GovernmentType: Electrical Engineering+26 more

Allgeier, Martin and Associates, Inc.

Joplin, MO

It's not just business...it's personal.

WebsitePhone6 offices17 projects20 leaders39 credentialsFounded 1954

Project: Route 66 Bridge

Service: Civil EngineeringService: BridgesService: IntersectionsIndustry: GovernmentIndustry: WastewaterType: Civil Engineering+33 more

Alpine Surveying & Engineering, Inc.

Bozeman, MT

Delivering Personalized Surveying & Engineering Solutions

WebsitePhone1 office6 leaders4 credentialsFounded 2002Updated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Commercial and light industrial site design and permittingService: Road and utility planning, design, and permittingIndustry: ResidentialIndustry: CommercialType: Civil Engineering+36 more

Altron, Inc.

Mount Pleasant, SC

Trusted Service - Proven Results

WebsitePhone2 offices2 projects5 leaders1 credentialsUpdated Jun 2026

Project: Department of State Passport Processing Operations

Service: Systems and Software EngineeringService: AI and Machine LearningService: Systems Integration and TestIndustry: DefenseIndustry: FederalType: Defense Engineering+25 more

Anautics Inc.

Oklahoma City, OK

Build Things That Matter.

Website1 office7 projects8 leadersFounded 2020Updated Jun 2026

Project: Captify

Service: Decision IntelligenceService: Agentic AI DevelopmentService: Enterprise Software & AI PlatformsIndustry: DefenseIndustry: ManufacturingType: Software Engineering+16 more

Applemon

New York, NY

Engineers and Scientists

WebsitePhone2 offices22 projects1 credentialsFounded 2002Updated Jun 2026

Project: Infrastructure Upgrade in Coney Island

Service: Structural EngineeringService: Structural DesignService: Plan ModificationsIndustry: InfrastructureIndustry: ResidentialType: Automation & Controls+27 more

Atugan

Carlsbad, CA

Engineering for unlimited possibilities.

WebsitePhone1 officeUpdated Jun 2026

Service detail: Wireless Communications

Service: Wireless CommunicationsService: Satellite and Terrestrial System DesignService: Wideband and Narrowband RF EngineeringIndustry: TelecommunicationsIndustry: DefenseType: Telecom / RF Engineering+19 more

Bandwidth Solutions Inc

McLean, VA

Engineering & Management

WebsitePhone1 officeUpdated Jun 2026

Service detail: Program and Project Management

Service: Program and Project ManagementService: Project ManagementService: Budgeting and Cost AnalysisIndustry: AerospaceIndustry: SpaceType: Telecom / RF Engineering+38 more

Big Little Sensor Company

Phoenix, AZ

Establishing world-leading expertise in little-radar technology.

Website1 office7 leaders12 publicationsUpdated Jun 2026

Service detail: Radar IP Licensing & Co-Development

Service: Radar IP Licensing & Co-DevelopmentService: IP LicensingService: Co-Development SupportIndustry: HealthcareIndustry: DefenseType: Telecom / RF Engineering+10 more

Blackout Technologies, Ltd.

The spectrum is contested.

WebsiteSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Counter-UAS (C-UAS) Detection

Service: Counter-UAS (C-UAS) DetectionService: Passive RF Direction FindingService: Expeditionary C-UAS DeploymentIndustry: DefenseIndustry: Public SafetyType: Defense Engineering+14 more

Blue Sky Scientific LLC

San Diego, CA

Delivering creative solutions to your hardest problems

Website1 office6 projectsFounded 2006Updated Jun 2026

Project: Boxing Tracking Broadcast Technology

Service: Embedded Systems EngineeringService: Firmware and Operating System DevelopmentService: Custom PCB and Hardware DesignIndustry: CommercialIndustry: Consumer ProductsType: Automation & Controls+16 more

Building Energy Solutions Provider LLC

Tempe, AZ

Energy Engineering Service Provider

WebsitePhone1 office1 leadersSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Energy and Water Audits

Service: Energy and Water AuditsService: Building Systems OptimizationService: Building Operational Usage AnalysisIndustry: EducationIndustry: GovernmentType: Mechanical Engineering+24 more

CI-MECH Engineering LLC

Jacksonville, FL

Civil, Mechanical, Electrical, and Plumbing Engineering Services

WebsitePhone1 officeUpdated Jun 2026

Service detail: MEP Engineering

Service: MEP EngineeringService: Mechanical DesignService: Heating and Cooling Load CalculationsIndustry: ResidentialIndustry: CommercialType: MEP+39 more

CJSeto Support Services, LLC

Ventura, CA

CJSeto Support Services, LLC is an environmental compliance, safety, information technology, logistics, and workforce training firm headquartered in Ventura, California. Founded in 1999, CJSeto holds ISO 9001:2015 certification and serves federal agencies, educational institutions, healthcare providers, and commercial clients. Its environmental practice covers hazardous waste management, EPA and RCRA compliance, NEPA documentation, spill prevention planning, environmental monitoring and remediation, and asbestos and lead monitoring. Its safety and industrial hygiene practice encompasses OSHA compliance audits, indoor air quality testing, chemical inventory management, respiratory protection, and hazard assessments. Additional service areas include IT infrastructure, cybersecurity and information assurance, logistics and inventory management, and professional training including HAZWOPER, OSHA, and EPA compliance courses. Federal clients include the U.S. Navy, Department of Homeland Security, NASA, and the Veterans Administration.

WebsitePhone1 office1 credentialsFounded 1999Updated Jun 2026

Service detail: Environmental Compliance

Service: Environmental ComplianceService: Hazardous Waste ManagementService: Environmental Monitoring and SamplingIndustry: FederalIndustry: DefenseType: Environmental Engineering+22 more

CNG Engineering, PLLC

San Antonio, TX

Engineer Exceptional & Equitable Environments for Everyone.

WebsitePhone3 offices10 projects5 leadersFounded 2004Updated Jun 2026

Project: Northeast Lake View College

Service: Mechanical DesignService: HVAC SystemsService: Central Heating & Cooling PlantsIndustry: EducationIndustry: HealthcareType: MEP+30 more

Calvin, Giordano & Associates, Inc.

Fort Lauderdale, FL

Empowering Florida Communities to Thrive

WebsitePhone1 office6 projectsSize Estimate: 10-49 employeesUpdated Jun 2026

Project: Planning and Zoning - Hillsboro Beach, FL

Service: Building Department ServicesService: Full-Service Building Department ManagementService: Plan ReviewIndustry: GovernmentIndustry: TransportationType: Civil Engineering+34 more

Casey Corp Defense LLC

Tulsa, OK

Mission Critical UxS Integration

WebsitePhone1 office4 projects5 leaders6 credentialsUpdated Jun 2026

Project: Army Short Range Recon (SRR) Integration

Service: RF & Telemetry IntegrationService: UxS Advanced Telemetry & RF IntegrationService: GCS Advanced Telemetry & RF IntegrationIndustry: DefenseType: Defense Engineering+17 more

Contrast, Inc.

Albuquerque, NM

We are leaders in optical design and integration, real-time electronics and software development.

WebsitePhone1 office3 leadersFounded 2005Updated Jun 2026

Service detail: Optical Design and Integration

Service: Optical Design and IntegrationService: Optical System DesignService: Imaging System AnalysisIndustry: CommercialIndustry: Consumer ProductsType: Electrical Engineering+21 more

Convergence Controls & Engineering

Littleton, CO

Where Controls & Engineering Converge

WebsitePhone2 offices4 credentialsUpdated Jun 2026

Service detail: Control Engineering and Programming

Service: Control Engineering and ProgrammingService: Programmable Logic ControllersService: Supervisory Control and Data AcquisitionIndustry: Oil & GasIndustry: Power GenerationType: Automation & Controls+32 more