Public engineering firm directory

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120 Degreez

Los Angeles, CA

Redefining Technical Excellence

Website1 officeUpdated Jun 2026

Service detail: Mechanical Engineering

Service: Mechanical EngineeringService: Electrical EngineeringService: Plumbing EngineeringIndustry: CommercialIndustry: HospitalityType: MEP+7 more

1350 Design, LLC

Show Low, AZ

Details Are Important. Innovate Past Expectation.

WebsitePhone1 office4 projects1 leadersUpdated Jun 2026

Project: NEBIS (Neural Edge Based Intelligence System)

Service: Edge-Based Autonomy & Kill-Web IntegrationService: Distributed AutonomyService: Manned-Unmanned Teaming (MUM-T)Industry: DefenseIndustry: AerospaceType: Defense Engineering+6 more

1836 Engineering LLC

Fort Worth, TX

Founded in Texas, by Texans.

WebsitePhone2 offices13 projects1 leaders2 credentialsUpdated Jun 2026

Project: Terminal Development Program - San Antonio Airport

Service: Construction Engineering & InspectionService: Contract AdministrationService: Construction ManagementIndustry: Highways & RoadsIndustry: BridgesType: Civil Engineering+30 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

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

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

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 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

3-Tier Alaska

Fairbanks, AK

Civil & Environmental Engineering, Surveying

WebsitePhone3 officesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Septic System Design and TestingService: Road Design and InspectionIndustry: ResidentialIndustry: CommercialType: Civil Engineering+19 more

303rd Engineering Group, LLC

St. Louis, MO

Successful Partnerships, Successful Projects

WebsitePhone1 office5 projects1 leaders1 credentialsFounded 2005

Project: Airmen's Dormitories, Scott Air Force Base

Service: Electrical EngineeringService: Fire Alarm SystemsService: Energy ConservationIndustry: GovernmentIndustry: FederalType: MEP+18 more

360 Engineering Group

Tulsa, OK

360 Engineering Group is a structural engineering firm with offices in Tulsa and Oklahoma City, Oklahoma, Manhattan, Kansas, and Dallas, Texas, holding professional engineer licenses in 49 states and Washington D.C. Its licensed engineers deliver structural design and analysis, BIM coordination, structural evaluation and rehabilitation, shop drawing preparation, peer reviews, and expert witness services for a broad range of building types and market sectors.

WebsitePhone4 offices4 projects6 leadersUpdated Jun 2026

Project: Block 34

Service: Structural Design and AnalysisService: Building Information ModelingService: Structural Evaluation and RehabilitationIndustry: CommercialIndustry: RetailType: Structural Engineering+15 more

406 Engineering Inc

Kalispell, MT

Work Hard | Work Smart | Enjoy Life

WebsitePhone2 offices18 leadersFounded 2018Size Estimate: 10-49 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Provides Comprehensive Civil Engineering DesignService: Focusing On Individual Rural SystemsIndustry: Land DevelopmentType: Civil Engineering+11 more

4D Systems

Flint, MI

The future of manufacturing is digital. Are you ready?

WebsitePhone3 offices5 credentialsFounded 2010Updated Jun 2026

Service detail: Controls Engineering

Service: Controls EngineeringService: Control System IntegrationService: Manufacturing Controls SupportIndustry: ManufacturingIndustry: AutomotiveType: Automation & Controls+23 more

5D Architecture & Engineering, PLLC

Lynbrook, NY

Full-Service Architecture & Engineering Design

WebsitePhone1 office9 projects2 leadersFounded 2009Updated Jun 2026

Project: Eastern Mirage Hotel & Medical Center

Service: Architectural DesignService: Programming and Master PlanningService: Zoning Compliance and ExpeditingIndustry: ResidentialIndustry: Multifamily ResidentialType: Architecture & Engineering+22 more

609 Consulting, LLC

Sheridan, WY

Engineering Excellence Delivering High-Quality Engineering, Surveying & Consulting Services to the Rocky Mountain Region

WebsitePhone4 offices8 leadersFounded 2007Size Estimate: 58 employeesUpdated Jun 2026

Service detail: Civil Engineering

Service: Civil EngineeringService: Road Engineering DesignService: Transportation Planning of Access RoadsIndustry: Oil & GasIndustry: Water ResourcesType: Civil Engineering+25 more

66 ENG GROUP

Sapulpa, OK

Empowering people and their projects to thrive.

WebsitePhone2 offices5 leadersFounded 2021Updated Jun 2026

Service detail: Civil Engineering Design

Service: Civil Engineering DesignService: Practical Civil Engineering Solutions Covering Grading And DrainageService: UtilitiesIndustry: Land DevelopmentIndustry: CommercialType: Civil Engineering+31 more

7 Oaks Engineering

Silverton, OR

Harmonizing the built environment with the natural.

WebsitePhone2 offices4 leaders3 credentialsSize Estimate: 1-10 employeesUpdated Jun 2026

Service detail: Land Development

Service: Land DevelopmentService: Due Diligence and Feasibility StudiesService: Entitlement and Conceptual DesignIndustry: CommercialIndustry: ResidentialType: Civil Engineering+24 more

A & M Engineering and Environmental Services, Inc.

Tulsa, OK

Providing Quality Services for Over 30 Years

WebsitePhone4 offices5 projects2 credentialsFounded 1984Updated Jun 2026

Project: Cumberland Levee Repair at Lake Texoma

Service: Construction & Remediation ServicesService: Landfill ConstructionService: Impoundments & Water StructuresIndustry: Environmental & RemediationIndustry: FederalType: Environmental Engineering+72 more

A Beazley Architecture LLC

Broussard, LA

A Kingdom-Minded Architecture, Interior & Product Design Firm

WebsitePhone1 office6 projects4 leaders2 credentialsFounded 2023

Project: Lafayette Animal Shelter and Care Center

Service: Architectural DesignService: Church & Worship ArchitectureService: Sanctuary and Auditorium DesignIndustry: ReligiousIndustry: Veterinary & Animal CareType: Architecture & Engineering+45 more

A&A Consultants Inc

McKees Rocks, PA

Specializing in geotechnical, structural, and civil engineering excellence

WebsitePhone3 offices7 projects8 credentialsFounded 1996Updated Jun 2026

Project: Big Beaver Bridge

Service: Bridge Design and InspectionsService: Bridge DesignService: Bridge InspectionsIndustry: TransportationIndustry: BridgesType: Civil Engineering+22 more

A&A Engineering

Toledo, OH

Innovative, Trusted Structural Engineering Since 1996

WebsitePhone1 office11 leadersFounded 1996Updated Jun 2026

Service detail: Core Structures

Service: Core StructuresService: Metal BuildingsService: Greenhouses & SunshadesIndustry: CommercialIndustry: RetailType: Civil Engineering+24 more

A&M Consulting Engineers

Visalia, CA

Moving Our Communities Infrastructure Forward

WebsitePhone2 offices3 projectsUpdated Jun 2026

Project: Gateway Park

Service: Water ResourcesService: Hydraulic AnalysisService: Municipal Water Well Planning and DesignIndustry: GovernmentIndustry: TransportationType: Civil Engineering+44 more

A&Z Engineering

Fort Wayne, IN

Your Engineering Solutions... Start to Finish.

WebsitePhone2 offices4 leadersFounded 2005Updated Jun 2026

Service detail: Roadway, Highway, and Intersection Improvements

Service: Roadway, Highway, and Intersection ImprovementsService: Construction InspectionService: Trails and SidewalksIndustry: GovernmentIndustry: TransportationType: Civil Engineering+13 more