Public engineering firm directory

Find engineering consulting firms by capability and location.

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ADP Resources

Dallas, OR

Engineering Services: Agility. Accuracy. Integrity.

WebsitePhone1 office8 leadersFounded 2012Updated Jun 2026

Service detail: Outside and Inside Plant Services

Service: Outside and Inside Plant ServicesService: Makeready Engineering NESC and GO95Service: Outside Plant EngineeringIndustry: TelecommunicationsIndustry: UtilitiesType: Telecom / RF Engineering+27 more

ATCO Communications Services, LLC

Snohomish, WA

ATCO Communications Services, LLC is a contract engineering firm established in 1978 with headquarters in Snohomish, Washington and a Midwest office in Fort Wayne, Indiana. It specializes in telecom engineering, outside plant (OSP) engineering, permitting, right-of-way and easement services, geospatial services, and joint-use support for private and public markets nationwide.

WebsitePhone3 officesFounded 1978Updated Jun 2026

Service detail: Telecom Engineering

Service: Telecom EngineeringService: OSP EngineeringService: PermittingIndustry: TelecommunicationsIndustry: InfrastructureType: Telecom / RF Engineering+5 more

AXIS Engineering Group

Rochester, NH

Future-Proof Your Network With Fiber

WebsitePhone1 officeUpdated Jun 2026

Service detail: Fiber Optic Engineering & Civil Planning

Service: Fiber Optic Engineering & Civil PlanningService: Civil Plans & Strand MapsService: Permit Drawings & Regulatory ComplianceIndustry: TelecommunicationsType: Telecom / RF Engineering+10 more

Ackerman Consulting Group, LLC

Scottsdale, AZ

Built for Rural and Tribal Broadband

WebsitePhone2 offices2 projects10 leadersSize Estimate: 10-49 employeesUpdated Jun 2026

Project: Rural Area Broadband Support Network (RABSN)

Service: Telecom Consulting ServicesService: Business Planning & Financial AnalysisService: Grant Writing & RFP SupportIndustry: TelecommunicationsIndustry: GovernmentType: Telecom / RF Engineering+13 more

Aeparmia Engineering PLLC

Austin, TX

Innovative Engineering Solutions for Utility Challenges & Needs

WebsitePhone3 offices13 projects1 leaders5 credentialsFounded 2017

Project: I-35 NEX South Project Electric and Telecom Utility Relocations

Service: Power and Fiber Utilities EngineeringService: Subsurface Utilities Engineering (SUE)Service: Public and Private Utilities Coordination and Conflict AnalysisIndustry: CommercialIndustry: ResidentialType: Civil Engineering+38 more

C6I Services Corp

The art of command balanced with the science of control.

WebsiteUpdated Jun 2026

Service detail: Command & Control Systems

Service: Command & Control SystemsService: Network SupportService: Software Sustainment ProgramsIndustry: DefenseIndustry: GovernmentType: Defense Engineering+35 more

CSI Engineering

Laurel, MD

Common Sense In Engineering

Website2 offices4 leadersFounded 1987Size Estimate: 10-50 employeesUpdated Jun 2026

Service detail: MEP Engineering Design

Service: MEP Engineering DesignService: Mechanical EngineeringService: HVAC DesignIndustry: FederalIndustry: GovernmentType: MEP+34 more

Campos Engineering

Dallas, TX

Customized MEP Solutions

WebsitePhone5 offices12 credentialsFounded 1984Size Estimate: 25-100 employeesUpdated Jun 2026

Service detail: MEP Engineering Design

Service: MEP Engineering DesignService: Mechanical Engineering DesignService: Electrical Engineering DesignIndustry: AviationIndustry: GovernmentType: MEP+38 more

Columbia Telecommunications Corporation

Bethesda, MD

Closing the digital divide

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Oregon Statewide Broadband Expansion Partnership

Service: Network Engineering & DesignService: High-Level Network DesignService: Detailed Outside Plant (OSP) EngineeringIndustry: TelecommunicationsIndustry: GovernmentType: Telecom / RF Engineering+26 more

Comm-Ence Engineering LLC

Darien, IL

Changing Communications

Website1 office1 leaders12 credentialsUpdated Jun 2026

Service detail: Technology Engineering and Commissioning

Service: Technology Engineering and CommissioningService: Technology CommissioningService: Needs Assessments and Master PlanningIndustry: TelecommunicationsIndustry: Data CentersType: Telecom / RF Engineering+31 more

Comspec Engineering

Honolulu, HI

Smart Technology for Smart Business

WebsitePhone1 office2 leadersFounded 2001Updated Jun 2026

Service detail: Telecommunications Engineering and Network Design

Service: Telecommunications Engineering and Network DesignService: Network TransportService: Outside PlantIndustry: TelecommunicationsIndustry: GovernmentType: Telecom / RF Engineering+22 more

Consolidated Networks Corporation

Oklahoma City, OK

Consolidated Networks Corporation is a secured IP network engineering services company based in Oklahoma City, Oklahoma. It provides certified professional engineers and technicians to design, build, secure, and maintain communication infrastructure for government, defense, education, and commercial clients. With over 22 years of experience, CNC specializes in communication infrastructure design, network security, managed services, cyber security, and education technology.

WebsitePhone1 office2 leaders2 credentialsUpdated Jun 2026

Service detail: Design & Build

Service: Design & BuildService: Infrastructure ModernizationService: PoE and IoT SolutionsIndustry: DefenseIndustry: GovernmentType: Telecom / RF Engineering+13 more

Crossland Engineering, LLC

Honolulu, HI

Big Firm Results Small Firm Service

WebsitePhone1 office5 credentialsUpdated Jun 2026

Service detail: HVAC Engineering

Service: HVAC EngineeringService: Heating, Ventilation, and Air-Conditioning (HVAC) Design and EngineeringService: Central Chilled Water and Hot Water PlantsIndustry: CommercialIndustry: ResidentialType: Mechanical Engineering+29 more

DDG Virginia Engineering, PC

Celebrating 20 Years of Excellence

Website7 projects3 leadersFounded 2005Size Estimate: 10-49 employeesUpdated Jun 2026

Project: WGTS 91.9 Radio Station

Service: Mechanical EngineeringService: HVAC SystemsService: CAV & VAV SystemsIndustry: CommercialIndustry: RetailType: MEP+38 more

Delta G Consulting Engineers, Inc.

Fort Lauderdale, FL

Full-service consulting engineering practice specializing in MEP, fire protection, and LEED-certified designs.

WebsitePhone2 offices2 leaders2 credentialsFounded 1992Size Estimate: 10-49 employees

Service detail: Heating, Ventilation, and Air Conditioning (HVAC)

Service: Heating, Ventilation, and Air Conditioning (HVAC)Service: Chilled Water and Condenser Water SystemsService: Constant Volume Air HandlingIndustry: HealthcareIndustry: AirportsType: MEP+99 more

Ditesco

Fort Collins, CO

Ditesco is a Fort Collins, Colorado-based program management, project management, construction management, and civil engineering firm with over 18 years of service to the northern Colorado community. It serves government, municipal, and private clients on projects ranging from water and wastewater treatment facilities and transportation infrastructure to utility systems, dams, and public buildings. In 2022, Ditesco merged with ESP Associates, Inc., a national engineering firm, extending its capabilities across civil engineering, surveying, water resources, transportation, and environmental disciplines.

Website1 officeFounded 2004Updated Jun 2026

Service detail: Program Management

Service: Program ManagementService: Project ManagementService: Full-cycle Project Management Spanning Professional Services SolicitationIndustry: GovernmentIndustry: Water SupplyType: Civil Engineering+22 more

ELEN Consulting, Inc.

San Diego, CA

Mechanical, Electrical and Plumbing Experts in San Diego

WebsitePhone1 office7 projects2 leaders2 credentialsFounded 2009

Project: Alpine Library

Service: Mechanical DesignService: Heating DesignService: Ventilation DesignIndustry: GovernmentIndustry: EducationType: Electrical Engineering+24 more

Edge Consulting Engineers, Inc.

Prairie du Sac, WI

Reliable, comprehensive and exceeding expectations

WebsitePhone2 offices4 leadersFounded 2002Size Estimate: 70+ employeesUpdated Jun 2026

Service detail: Civil Engineering & Landscape Architecture

Service: Civil Engineering & Landscape ArchitectureService: Civil EngineeringService: Landscape ArchitectureIndustry: TelecommunicationsIndustry: GovernmentType: Civil Engineering+20 more

Express Technologies, Inc.

Fredericksburg, VA

Connecting the World Through End-to-End System Integration & Utility Infrastructure

WebsitePhone3 offices13 leaders1 credentialsFounded 2002Updated Jun 2026

Service detail: Utility Consulting

Service: Utility ConsultingService: Telecom And Dry Utility Consulting ServicesService: PermittingIndustry: CommercialIndustry: DefenseType: Telecom / RF Engineering+18 more

Finley Engineering Company, Inc.

Lamar, MO

Integrity Into Everything

WebsitePhone3 offices1 leadersFounded 1953Updated Jun 2026

Service detail: Broadband & Telecom Engineering

Service: Broadband & Telecom EngineeringService: Outside Plant EngineeringService: Network Design & IP NetworkingIndustry: TelecommunicationsIndustry: Power GenerationType: Power & Utility Engineering+33 more

HHB Engineers, P.C.

Tuscaloosa, AL

Recognized Leader in Mechanical Engineering

WebsitePhone1 office6 projects4 leaders14 credentialsFounded 1983

Project: Vance Federal Building and Courthouse Renovation

Service: HVAC DesignService: Air Handling System Replacements and UpgradesService: Humid Area and Coastal DesignIndustry: Sports & RecreationIndustry: CommercialType: Mechanical Engineering+56 more

Highground Services, Inc.

Franklin, VA

Committed to being an innovative solution provider of quality professional and technical services.

WebsitePhone1 office1 projects5 credentialsUpdated Jun 2026

Project: Southampton High School Athletic Fields Lighting

Service: EngineeringService: Electrical Systems EngineeringService: Interior, Exterior, and Site Lighting DesignIndustry: IndustrialIndustry: CommercialType: Electrical Engineering+54 more

Iconic Consulting Group

Dallas, TX

Excellence. Every Client. Every Time.

WebsitePhone4 offices7 projectsUpdated Jun 2026

Project: DART/DFW Airport Irving/DFW Corridor

Service: Transportation EngineeringService: Highways and TollwaysService: Intersection ImprovementsIndustry: TransitIndustry: AirportsType: Civil Engineering+25 more

Intelliconnect, LLC

Professional engineering and project management for unified network solutions

WebsiteUpdated Jun 2026

Service detail: 4G/5G Technical Consulting

Service: 4G/5G Technical ConsultingService: 5G Network Design and StrategyService: Mobile Virtual Network Enablement (MVNE)Industry: TelecommunicationsIndustry: GovernmentType: Telecom / RF Engineering+32 more