Public engineering firm directory

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18 Grados Corp

San Juan, PR

18 Grados Design is a multidisciplinary design-build architecture and engineering practice based in Puerto Rico, specializing in contemporary design and comprehensive project development. Founded in 2013, the practice delivers a diverse range of services encompassing architecture, civil and structural engineering, permitting, and construction management. It supports projects across multiple sectors, ranging from custom single-family residences to complex retail expansions and mixed-use developments. By integrating design and construction under a single collaborative framework, 18 Grados Design streamlines the execution of both small-scale renovations and large-scale commercial developments.

Website1 office6 projects3 leadersFounded 2013Updated Jun 2026

Project: Mirador

Service: ArchitectureService: DesignService: Conceptual DesignIndustry: ResidentialIndustry: CommercialType: Architecture & Engineering+23 more

186 Engineering, LLC

Atlanta, GA

Electrical Forensic Engineering, Infrared Inspections, and Design

WebsitePhone1 office5 projects1 leaders5 credentialsUpdated Jun 2026

Project: Washington Harbour Flood Electrical Damage Assessment

Service: Electrical Forensic EngineeringService: Investigation Of Electrical SystemsService: ComponentsIndustry: CommercialIndustry: IndustrialType: Electrical Engineering+28 more

1CSDesign

San Diego, CA

Engineering Confidence From the Ground Up

WebsitePhone1 office1 leadersUpdated Jun 2026

Service detail: Structural Design

Service: Structural DesignService: Residential and Commercial Building DesignService: Structural Material EngineeringIndustry: ResidentialIndustry: CommercialType: Structural Engineering+13 more

2 Bravo Group LLC

We make sure buildings work

Website6 projectsUpdated Jun 2026

Project: VA Medical Center - New Construction Commissioning

Service: Building CommissioningService: Design and submittal reviewService: Functional performance testingIndustry: FederalIndustry: DefenseType: MEP+18 more

20/10 Engineering Group, LLC

Sustainable Designs | Better Engineering Vision

Website9 projectsUpdated Jun 2026

Project: Trinity International University - New Waybright Student Center

Service: Mechanical, Electrical, and Plumbing EngineeringService: HVAC and Climate Control SystemsService: Plumbing and Process Piping DesignIndustry: EducationIndustry: HealthcareType: MEP+26 more

28 Gorilla Engineering

Chandler, AZ

Ruggedized product engineering for the field and the future.

WebsitePhone1 office8 projects2 leaders1 credentialsFounded 2017

Project: JASC Pressure Regulating Controller

Service: Mechanical Engineering DesignService: Assembly-aware mechanical designService: CNC and machined part designIndustry: DefenseIndustry: AerospaceType: Defense Engineering+49 more

2IM Group, LLC

Chicago, IL

2IM Group, LLC is a Chicago-based civil, environmental, and transportation engineering practice. Now part of MacKay, it continues to deliver technical solutions across highways, roads, streets, aviation, rail, transit, utilities, and stormwater management systems while offering expanded resources and broader geographic reach.

WebsitePhone1 office5 projects8 leadersFounded 2005Updated Jun 2026

Project: O'Hare Terminal 3, Concourse L Expansion

Service: Highways, Roads, and StreetsService: Roadway geometryService: Drainage systemsIndustry: TransportationIndustry: Highways & RoadsType: Civil Engineering+29 more

2LMN, Inc.

Lancaster, OH

Your Trusted Engineering Partner

WebsitePhone4 offices10 leaders4 credentialsFounded 1979Updated Jun 2026

Service detail: Land Development

Service: Land DevelopmentService: Site Drainage and Grading PlansService: Stormwater Pollution Prevention PlansIndustry: InfrastructureIndustry: GovernmentType: Civil Engineering+48 more

2P Consultants, LLC

Round Rock, TX

We're Preparing Plans for Central Texas' Growth

WebsitePhone1 office1 leadersFounded 2017Updated Jun 2026

Service detail: Site Assessment

Service: Site AssessmentService: Quick Site Assessment (1-page)Service: Detailed Site Assessment (75+ page report with exhibits)Industry: CommercialIndustry: RetailType: Civil Engineering+18 more

2RW Consultants, Inc.

Charlottesville, VA

Energy by Design

WebsitePhone3 offices10 projects6 leaders32 credentialsFounded 1985

Project: JMU Carrier Library Renovation, Restoration, and Expansion

Service: MEP/FP Engineering DesignService: Mechanical EngineeringService: Electrical EngineeringIndustry: EducationIndustry: GovernmentType: MEP+37 more

3 Consulting Engineers, LLC

Denver, CO

3 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 leadersUpdated Jun 2026

Service detail: HVAC and Plumbing Systems

Service: HVAC and Plumbing SystemsService: Building automation systems (BAS) and controlsService: Radiant heating and cooling systemsIndustry: CommercialIndustry: Multifamily ResidentialType: MEP+17 more

3 Phase Associates LLC

Chattanooga, TN

Electrical Engineering and Consulting Services

Website1 office2 credentialsFounded 2016Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Electrical Engineering

Service: Electrical EngineeringService: Power System CalculationsService: Arc Flash AnalysisIndustry: UtilitiesIndustry: Power Transmission & DistributionType: Electrical Engineering+31 more

3 Rocks Engineering & Surveying

Cañon City, CO

Colorado Civil, Structural, & Land Surveying Experts

WebsitePhone3 offices9 projects2 leadersSize Estimate: 11-50 employeesUpdated Jun 2026

Project: Love's Travel Stop & RV Park Designs

Service: Civil EngineeringService: Residential and Commercial Site DevelopmentService: Oil and Gas Civil SupportIndustry: CommercialIndustry: ResidentialType: Civil Engineering+28 more

316 Product Development, LLC

Passionate and Creative

Website6 projects6 leadersSize Estimate: 1-9 employeesUpdated Jun 2026

Project: Vacuum Assisted Breast Biopsy Device

Service: Mechanical EngineeringService: Advanced Computer Aided Design (CAD)Service: Finite Element Analysis (FEA) and SimulationIndustry: Medical DevicesIndustry: Consumer ProductsType: Mechanical Engineering+34 more

360 Engineering P.C.

Civil, Structural, and Construction Engineering Services

Website1 leadersFounded 2020Size Estimate: 1-9 employeesUpdated Jun 2026

Service detail: Structural Engineering

Service: Structural EngineeringService: Structural Evaluations of Existing BuildingsService: Structural Rehabilitation and Alteration DesignIndustry: CommercialIndustry: ResidentialType: Civil Engineering+23 more

360 Engineering, Inc.

Golden, CO

Engineering & Consulting for the Built Environment

WebsitePhone1 office12 projects6 leaders17 credentialsFounded 2003

Project: DEN B-East & C-East Concourse Expansions

Service: Mechanical & Plumbing EngineeringService: HVAC DesignService: Plumbing EngineeringIndustry: EducationIndustry: GovernmentType: Mechanical Engineering+15 more

3Bears Technical Services

Hixson, TN

Experts in Nuclear Operations and Waste Management Solutions

WebsitePhone1 office2 credentialsUpdated Jun 2026

Service detail: Engineering and Project Management

Service: Engineering and Project ManagementService: Mechanical EngineeringService: Electrical EngineeringIndustry: NuclearIndustry: Environmental & RemediationType: Environmental Engineering+31 more

3RE Engineering LLC

Shawnee, KS

Specialized Electrical Engineering for Water & Wastewater Infrastructure

WebsitePhone1 office1 leaders5 credentialsSize Estimate: 1-5 employeesUpdated Jun 2026

Service detail: Electrical Design Service

Service: Electrical Design ServiceService: Power Distribution System DesignService: Equipment Specification & GroundingIndustry: WastewaterIndustry: Water SupplyType: Electrical Engineering+11 more

3T Design & Development LLC

Kansas City, MO

Air. Land. Water.

WebsitePhone1 office1 leadersFounded 2009Updated Jun 2026

Service detail: Air Quality and Environmental Compliance

Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportService: Regulatory Review and ComplianceIndustry: TransportationIndustry: Water SupplyType: Civil Engineering+25 more

3Vi, Inc.

San Ramon, CA

Engineering Excellence for a Sustainable Future

WebsitePhone3 offices1 leadersUpdated Jun 2026

Service detail: Systems Engineering & Integration

Service: Systems Engineering & IntegrationService: SCADA and Control SystemsService: Communications SystemsIndustry: TransitIndustry: RailType: Electrical Engineering+18 more

3mg P S C

Designing Spaces. Engineering Solutions. Delivering Excellence

Website14 projects18 leadersUpdated Jun 2026

Project: American University - Student Center

Service: ArchitectureService: Master PlansService: Feasibility StudiesIndustry: CommercialIndustry: EducationType: Architecture & Engineering+48 more

4D Tech Solutions, LLC

Fairmont, WV

Mission-Driven Design and Development

WebsitePhone1 office5 projects5 leadersFounded 2013Updated Jun 2026

Project: RedTail LiDAR System

Service: Technology DevelopmentService: MEMS-Mirror LiDAR SystemsService: Innovative Sensor SolutionsIndustry: DefenseIndustry: AerospaceType: Aerospace Engineering+19 more

4M Engineering

Specialized civil and structural engineering services for bridges and infrastructure projects.

Website1 projectsUpdated Jun 2026

Project: Shasta Viaduct

Service: Temporary Works and Shoring DesignService: Bridge FalseworkService: Crane TrestlesIndustry: BridgesIndustry: InfrastructureType: Civil Engineering+22 more

4site Advisors Inc

We get it: Your vision. Your values. Results.

Website9 projectsUpdated Jun 2026

Project: Guard & Grace

Service: Owner's RepresentationService: Communication ManagementService: Risk Assessment & Mitigation PlanningIndustry: CommercialIndustry: RetailType: Owner's Engineer+26 more