3 Phase Associates LLC
Chattanooga, TNElectrical Engineering and Consulting Services
Website1 office2 credentialsFounded 2016
Service: Electrical EngineeringService: Power System CalculationsIndustry: UtilitiesType: Electrical Engineering+33 more
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
State
City
Services
Industries
Firm types
1,085 results
Showing 1-24 of 1,085
316 Product Development, LLC
Passionate and Creative
Website6 projects6 leadersSize Estimate: 1-9 employees
Service: Mechanical EngineeringService: Advanced Computer Aided Design (CAD)Industry: Medical DevicesType: Mechanical Engineering+36 more
3D Design & Engineering
Houston, TXInnovation, Integrity & Quality - All of your A&E, Surveying and Utility Locating needs under one roof.
WebsitePhone1 office4 projects
Service: A&E ServicesService: Site Feasibility StudiesIndustry: Oil & GasType: Architecture & Engineering+32 more
3U Technologies, LLC
Conroe, TXBusiness consultant services engineered to withstand any condition
WebsitePhone1 office2 projects
Service: International Business ConsultingService: Market analysesIndustry: Oil & GasType: Marine Engineering+40 more
3Vi, Inc.
San Ramon, CAEngineering Excellence for a Sustainable Future
WebsitePhone3 offices1 leaders
Service: Systems Engineering & IntegrationService: SCADA and Control SystemsIndustry: TransitType: Electrical Engineering+20 more
5FOLD Engineering
Seminole, FLPrecision Unfolded. Mission Ready.
WebsitePhone1 office2 projects
Service: Design EngineeringService: Design for Manufacturing & SustainabilityIndustry: DefenseType: Mechanical Engineering+34 more
A & S Engineers, Inc.
San Francisco, CAFull-service Mechanical, Electrical, Plumbing Engineering and Commissioning Firm
Website1 office6 leadersUpdated Jun 2026
Service: Mechanical EngineeringService: HVAC & Hydronic SystemsIndustry: Multifamily ResidentialType: MEP+20 more
A Squared Plus Engineering Support Group, LLC
Finksburg, MDA Squared Plus Engineering Support Group, LLC (A2+ESG) is an engineering practice that specializes in mechanical, electrical, plumbing, and information transportation system design. It delivers planning, engineering support, system analysis, and inspections for commercial, residential, industrial, and institutional facilities, including specialized experience in public safety and correctional environments.
WebsitePhone1 office11 projects
Service: MEP DesignService: Sustainable DesignIndustry: ResidentialType: MEP+27 more
A. G. Consulting Engineering, PC
New York, NYA. G. Consulting Engineering, PC is an established MEP and construction management consulting practice. It offers mechanical, electrical, plumbing, fire protection, fire engineering, LEED consulting, special inspection, and construction management services for infrastructure, institutional, and public works projects.
WebsitePhone5 offices8 projects
Service: MEP EngineeringService: Mechanical and HVAC Systems DesignIndustry: TransitType: MEP+19 more
A.P. Consulting Engineers, DPC
Elmont, NYMEP, Lighting, Energy, and Life Safety Engineering
WebsitePhone2 offices8 credentials
Service: MEP ServicesService: Mechanical DesignIndustry: Arts & CultureType: MEP+20 more
A.W. Schultz Inc.
Shawnee, KSTrusted Engineering and Integration Since 1977
WebsitePhone1 office3 credentials
Service: Process Control and SCADA SystemsService: Process Visualization & HMI/OITIndustry: Water SupplyType: Automation & Controls+27 more
A2e Technologies
San Diego, CAElectronic Design Built for Critical Programs
WebsitePhone1 office9 projects
Service: Electronics Design ServicesService: Hardware DesignIndustry: DefenseType: Electrical Engineering+26 more
ABD Tech Solutions, LLC
Achieving military interoperability
Website2 leaders1 credentialsUpdated Jun 2026
Service: Foreign Military Sales SupportService: Pre-Letter of Request SupportIndustry: DefenseType: Defense Engineering+26 more
ABN Engineering LLC
Turning client vision into buildable, cost-effective solutions.
Website1 leadersUpdated Jun 2026
Service: Architectural and Engineering DesignService: Structural EngineeringIndustry: TelecommunicationsType: Architecture & Engineering+14 more
ACSYeS Inc
Aberdeen Proving Ground, MDScientific and engineering consulting services for aerospace, defense, and commercial applications.
WebsitePhone2 officesUpdated Jun 2026
Service: Systems EngineeringService: Architecture DevelopmentIndustry: AerospaceType: Defense Engineering+25 more
ADCOMM Engineering LLC
Woodinville, WAWe Bridge The Gap Between Operations and Technology.
WebsitePhone2 offices1 credentials
Service: Systems EngineeringService: Public Safety Systems EngineeringIndustry: Public SafetyType: Owner's Engineer+32 more
ADO Engineering, Inc.
South Elgin, ILSpecialized electrical engineering for aviation, transportation, and facilities projects
WebsitePhone1 officeFounded 2011
Service: Electrical Systems DesignService: Facility Electrical EngineeringIndustry: AviationType: Electrical Engineering+11 more
ADP Resources
Dallas, OREngineering Services: Agility. Accuracy. Integrity.
WebsitePhone1 office8 leaders
Service: Outside and Inside Plant ServicesService: Makeready Engineering NESC and GO95Industry: TelecommunicationsType: Telecom / RF Engineering+29 more
ADX Research, Inc.
Schaumburg, ILInnovative Solutions, Exceptional Performance
WebsitePhone1 office6 leaders
Service: System DesignService: Power Electronics System DesignIndustry: ElectronicsType: Electrical Engineering+16 more
AE Design
Denver, COAll things electrical
WebsitePhone1 office8 projects
Service: Electrical EngineeringService: Electrical Engineering DesignIndustry: CommercialType: Electrical Engineering+24 more
AE Works
Sewickley, PAWe Make Building Projects a Better Value
WebsitePhone2 offices15 projects
Service: Architecture & Interior DesignService: Programming and Test FitsIndustry: CommercialType: Architecture & Engineering+48 more
AE2S
Bismarck, NDEmpowering People. Enhancing Lives.
Website22 offices6 leadersFounded 1991
Service: Water and Wastewater EngineeringService: WaterIndustry: Automation & ControlsType: Civil Engineering+31 more
AEED, Inc.
Chattanooga, TNSustainable, Innovative Engineering Solutions
WebsitePhone1 office2 credentials
Service: Engineering, Consulting and DesignService: Mechanical EngineeringIndustry: CommercialType: MEP+55 more
AES Group, Inc.
Parker, COProviding Engineering and Architecture Services Since 2002
WebsitePhone1 office4 projects
Service: Civil EngineeringService: Site DesignIndustry: GovernmentType: Architecture & Engineering+40 more