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.
Filters2
State
City
Services
Industries
Firm types
164 results
Showing 1-24 of 164
ABQ Engineering, Inc.
Albuquerque, NMCost-effective, one-stop engineering, surveying, and planning services
WebsitePhone1 office5 projects
Service: Civil EngineeringService: Drainage and Hydrology AnalysisIndustry: CommercialType: Civil Engineering+40 more
AEPC Group, LLC
Santa Clarita, CAWe build confidence
WebsitePhone1 office1 projects
Service: ArchitectureService: Schematic and Conceptual Design DevelopmentIndustry: AerospaceType: Architecture & Engineering+42 more
AES Northeast
Plattsburgh, NYArchitecture | Engineering | Surveying
WebsitePhone2 offices1 projects
Service: ArchitectureService: Architectural Design & DocumentationIndustry: GovernmentType: Architecture & Engineering+29 more
AKS Engineering & Forestry
Tualatin, ORPractical Solutions. Designed to Last.
WebsitePhone1 officeFounded 1996
Service: Civil EngineeringService: Site Design & GradingIndustry: InfrastructureType: Civil Engineering+37 more
AMG, Inc.
Dayton, OHIndustrial Facility Engineering
WebsitePhone1 office12 projects
Service: Process EngineeringService: PFD and P&ID DevelopmentIndustry: ChemicalsType: Automation & Controls+75 more
ANS
Scotch Plains, NJEngineering with integrity & purpose.
WebsitePhone1 office7 projects
Service: Civil, Site & Land DevelopmentService: Site Development & PermittingIndustry: Renewable EnergyType: Civil Engineering+59 more
ATC Design Group
Escondido, CACalifornia's Only One Stop Shop
WebsitePhone1 officeFounded 1993
Service: Planning and PermittingService: EntitlementsIndustry: CommercialType: Architecture & Engineering+39 more
Above Grade Engineering
Above Grade Engineering provides civil engineering, electrical engineering, lighting design, and land surveying for commercial, residential, land development, educational, and government projects. Its services span site grading and drainage design, utility infrastructure, SWPPP documentation, public agency coordination, and a full range of surveying services including ALTA surveys, subdivision mapping, and construction staking. An in-house electrical engineering and lighting design division serves clients across the same project portfolio.
WebsiteUpdated Jun 2026
Service: Civil EngineeringService: Site Grading DesignIndustry: CommercialType: Civil Engineering+45 more
Advance Design Consultants Inc
San Jose, CAExperience. Passion. Excellence.
WebsitePhone1 office7 projects
Service: Architecture & PlanningService: Architectural DesignIndustry: CommercialType: Architecture & Engineering+40 more
Advanced Engineering Consultants
Columbus, OHAdvanced Engineering Consultants specializes in providing mechanical, electrical, plumbing, fire protection, technology, and utilities engineering design and construction administration services for the built environment. Established in 1998, the practice works collaboratively with owners, architects, and contractors across the Midwest, the nation, and globally. It has completed nearly 2,000 projects across diverse sectors including government, healthcare, education, and commercial markets.
WebsitePhone4 offices6 projects
Service: Mechanical EngineeringService: HVAC Design and UpgradesIndustry: FederalType: MEP+25 more
Advanced Integration Group, Inc.
McKees Rocks, PABe in Control.
WebsitePhone1 office2 projects
Service: Control Systems Design and ImplementationService: PLC ProgrammingIndustry: Power GenerationType: Automation & Controls+39 more
Ahavah Automation
Dallas, TXTurnkey Installation & System Integration
WebsitePhone1 office7 projects
Service: Electrical EngineeringService: Electrical DesignIndustry: ManufacturingType: Automation & Controls+27 more
All City Engineering, P.C.
New York, NYMEP Engineering Design Services
Website2 offices2 leadersFounded 2011
Service: Mechanical EngineeringService: HVAC Design and CalculationsIndustry: ResidentialType: MEP+24 more
All-Phase Power, LLC
Medina, OHPowering Your Future
WebsitePhone2 offices2 leaders
Service: Electrical ContractingService: Residential Electrical ServicesIndustry: CommercialType: Electrical Engineering+14 more
Alliance Engineers & Project Consultants
Beaumont, TXMultidisciplined EPCM
WebsitePhone1 office5 projects
Service: Project DevelopmentService: Phased Front-End LoadingIndustry: Carbon CaptureType: Automation & Controls+45 more
Amodu Engineering Solutions, LLC
St. Louis, MOBuilding Relationships through Affordable Engineering Excellence
WebsitePhone1 office1 leaders
Service: Mechanical EngineeringService: HVAC Load Calculation ServicesIndustry: HealthcareType: MEP+29 more
Apex Engineering Corporation
Centreville, MSConsulting Engineers
WebsitePhone1 office3 projects
Service: Electrical EngineeringService: Electrical Power DistributionIndustry: CommercialType: Electrical Engineering+28 more
Arseal Technologies, Inc.
Let's Engineer the Future
Website7 leadersUpdated Jun 2026
Service: ArchitectureService: Architectural DesignIndustry: IndustrialType: Architecture & Engineering+26 more
Ashe Consultants, PLLC
Ashburn, VAMEP engineering specializing in complex renovation projects
WebsitePhone1 office7 leaders
Service: Mechanical EngineeringService: HVAC DesignIndustry: GovernmentType: MEP+21 more
Astra Engineering LLC
Twin Falls, IDIndustrial Design, Automation, and Engineering Solutions
WebsitePhone1 office2 projects
Service: Construction EngineeringService: Civil EngineeringIndustry: ManufacturingType: Civil Engineering+34 more
Astral Engineers P.C.
Rancho Cucamonga, CAProfessional Engineering Services - Mechanical, Electrical, Plumbing, Technology, Fire Protection
WebsitePhone2 offices11 projects
Service: Mechanical EngineeringService: Air Handling Unit DesignIndustry: HealthcareType: MEP+53 more
Automation Control Service LLC
Pensacola, FLControl System Integrator specializing in Automation & Information Systems
WebsitePhone1 office8 credentials
Service: Municipal & Industrial AutomationService: PLC & HMI ProgrammingIndustry: GovernmentType: Automation & Controls+25 more
Benchmark Group Inc
Rogers, ARYour Vision. Our Experience. ONE CHOICE.
WebsitePhone3 offices12 projects
Service: Architecture & Interior DesignService: Architectural RenderingsIndustry: CommercialType: Architecture & Engineering+62 more