120 Degreez
Los Angeles, CARedefining Technical Excellence
Website1 officeUpdated Jun 2026
Service: Mechanical EngineeringService: Electrical EngineeringIndustry: CommercialType: MEP+9 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
2,284 results
Showing 1-24 of 2,284
1350 Design, LLC
Show Low, AZDetails Are Important. Innovate Past Expectation.
WebsitePhone1 office4 projects
Service: Edge-Based Autonomy & Kill-Web IntegrationService: Distributed AutonomyIndustry: DefenseType: Defense Engineering+8 more
2 Bravo Group LLC
We make sure buildings work
Website6 projectsUpdated Jun 2026
Service: Building CommissioningService: Design and submittal reviewIndustry: FederalType: MEP+20 more
20/10 Engineering Group, LLC
Sustainable Designs | Better Engineering Vision
Website9 projectsUpdated Jun 2026
Service: Mechanical, Electrical, and Plumbing EngineeringService: HVAC and Climate Control SystemsIndustry: EducationType: MEP+28 more
2M Associates, LLC
Dallas, TXBest Engineering Solutions to Build Your Dreams
WebsitePhone1 office5 projects
Service: Water and Wastewater DesignService: Hydrologic/hydraulic AnalysisIndustry: Water SupplyType: Civil Engineering+59 more
2RW Consultants, Inc.
Charlottesville, VAEnergy by Design
WebsitePhone3 offices10 projects
Service: MEP/FP Engineering DesignService: Mechanical EngineeringIndustry: EducationType: MEP+39 more
3 Consulting Engineers, LLC
Denver, CO3 Consulting Engineers is an MEP consulting engineering firm based in Denver, Colorado, focused on commercial projects ranging from multifamily to healthcare. Celebrating over 10 years in business, the firm delivers HVAC, plumbing, and lighting designs on time and on budget. Licensed in Colorado and 34 other states, 3 Consulting Engineers serves restaurants, offices, grocery stores, hotels, retail, multifamily buildings, and surgery centers.
WebsitePhone1 office3 leaders
Service: HVAC and Plumbing SystemsService: Building automation systems (BAS) and controlsIndustry: CommercialType: MEP+19 more
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
303rd Engineering Group, LLC
St. Louis, MOSuccessful Partnerships, Successful Projects
WebsitePhone1 office5 projects
Service: Electrical EngineeringService: Fire Alarm SystemsIndustry: GovernmentType: MEP+20 more
360 Energy Group
Chicago, ILYour Energy Use Simplified
WebsitePhone1 office3 projects
Service: Program Design and ImplementationService: Public Sector ProgramsIndustry: GovernmentType: Power & Utility Engineering+21 more
360 Engineering, Inc.
Golden, COEngineering & Consulting for the Built Environment
WebsitePhone1 office12 projects
Service: Mechanical & Plumbing EngineeringService: HVAC DesignIndustry: EducationType: Mechanical Engineering+17 more
3Bears Technical Services
Hixson, TNExperts in Nuclear Operations and Waste Management Solutions
WebsitePhone1 office2 credentials
Service: Engineering and Project ManagementService: Mechanical EngineeringIndustry: NuclearType: Environmental Engineering+33 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
3D Engineering Solutions, LLC
Cincinnati, OHMeasuring & Modeling Quality
WebsitePhone1 office2 credentials
Service: 3D Laser Scanning & DigitizingService: Short Range 3D Laser ScanningIndustry: AerospaceType: Materials Testing+30 more
3J Consulting, Inc.
Your Partner in Civil Engineering & Community Planning
Website8 projects6 leaders6 credentials
Service: Civil EngineeringService: Grading & DrainageIndustry: Land DevelopmentType: Civil Engineering+41 more
3RE Engineering LLC
Shawnee, KSSpecialized Electrical Engineering for Water & Wastewater Infrastructure
WebsitePhone1 office1 leaders
Service: Electrical Design ServiceService: Power Distribution System DesignIndustry: WastewaterType: Electrical Engineering+13 more
3T Design & Development LLC
Kansas City, MOAir. Land. Water.
WebsitePhone1 office1 leaders
Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportIndustry: TransportationType: Civil Engineering+27 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
5FOLD Engineering
Seminole, FLPrecision Unfolded. Mission Ready.
WebsitePhone1 office2 projects
Service: Design EngineeringService: Design for Manufacturing & SustainabilityIndustry: DefenseType: Mechanical Engineering+34 more
83 Ordinal Group
Pine Bluff, ARInnovative Agritech & Engineering Solutions
WebsitePhone1 officeSize Estimate: 1-10 employees
Service: Agritech and Renewable Energy EngineeringService: Agrivoltaics and Clean Energy IntegrationIndustry: Renewable EnergyType: Owner's Engineer+24 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 D Marble Co Inc
King of Prussia, PAEnvironmental, Cultural, and Water Resources Engineering
Website4 offices5 leadersUpdated Jun 2026
Service: Environmental EngineeringService: Environmental Clearance and PermittingIndustry: FederalType: Environmental Engineering+16 more
A&J Consulting Engineering Services, P.C.
Clifton, NJA&J Consulting Engineering Services, P.C. is a full-service MEP consulting engineering practice headquartered in Clifton, New Jersey. Founded in 1988 by Jay Agarwal, P.E., A&J delivers mechanical, electrical, and plumbing systems design, pharmaceutical validation and commissioning, construction administration, sustainable design, and high-technology systems consulting. Clients span the pharmaceutical, biotechnology, commercial, educational, governmental, industrial, and religious sectors across the New York-New Jersey region.
WebsitePhone1 office5 projects
Service: MEP Systems DesignService: HVACIndustry: PharmaceuticalType: MEP+42 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