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.

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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 leaders
Service: ArchitectureService: DesignIndustry: ResidentialType: Architecture & Engineering+25 more

1836 Engineering LLC

Fort Worth, TX

Founded in Texas, by Texans.

WebsitePhone2 offices13 projects
Service: Construction Engineering & InspectionService: Contract AdministrationIndustry: Highways & RoadsType: Civil Engineering+32 more

1CSDesign

San Diego, CA

Engineering Confidence From the Ground Up

WebsitePhone1 office1 leaders
Service: Structural DesignService: Residential and Commercial Building DesignIndustry: ResidentialType: Structural Engineering+15 more

1st Self Consulting, LLC

Loves Park, IL

Sustainable Transportation Engineering Planning & Design

WebsitePhone1 office1 projects
Service: Civil Engineering ConsultingService: Providing Professional Civil Engineering AdvisoryIndustry: TransportationType: Civil Engineering+27 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 projects
Service: Highways, Roads, and StreetsService: Roadway geometryIndustry: TransportationType: Civil Engineering+31 more

2LMN, Inc.

Lancaster, OH

Your Trusted Engineering Partner

WebsitePhone4 offices10 leaders
Service: Land DevelopmentService: Site Drainage and Grading PlansIndustry: InfrastructureType: Civil Engineering+50 more

2M Associates, LLC

Dallas, TX

Best Engineering Solutions to Build Your Dreams

WebsitePhone1 office5 projects
Service: Water and Wastewater DesignService: Hydrologic/hydraulic AnalysisIndustry: Water SupplyType: Civil Engineering+59 more

2P Consultants, LLC

Round Rock, TX

We're Preparing Plans for Central Texas' Growth

WebsitePhone1 office1 leaders
Service: Site AssessmentService: Quick Site Assessment (1-page)Industry: CommercialType: Civil Engineering+20 more

3 Rocks Engineering & Surveying

Cañon City, CO

Colorado Civil, Structural, & Land Surveying Experts

WebsitePhone3 offices9 projects
Service: Civil EngineeringService: Residential and Commercial Site DevelopmentIndustry: CommercialType: Civil Engineering+30 more

3-Tier Alaska

Fairbanks, AK

Civil & Environmental Engineering, Surveying

WebsitePhone3 officesUpdated Jun 2026
Service: Civil EngineeringService: Septic System Design and TestingIndustry: ResidentialType: Civil Engineering+21 more

360 Engineering P.C.

Civil, Structural, and Construction Engineering Services

Website1 leadersFounded 2020Size Estimate: 1-9 employees
Service: Structural EngineeringService: Structural Evaluations of Existing BuildingsIndustry: CommercialType: Civil Engineering+25 more

3D Design & Engineering

Houston, TX

Innovation, 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

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

3T Design & Development LLC

Kansas City, MO

Air. Land. Water.

WebsitePhone1 office1 leaders
Service: Air Quality and Environmental ComplianceService: Air Quality Permitting SupportIndustry: TransportationType: Civil Engineering+27 more

3mg P S C

Designing Spaces. Engineering Solutions. Delivering Excellence

Website14 projects18 leadersUpdated Jun 2026
Service: ArchitectureService: Master PlansIndustry: CommercialType: Architecture & Engineering+50 more

406 Engineering Inc

Kalispell, MT

Work Hard | Work Smart | Enjoy Life

WebsitePhone2 offices18 leaders
Service: Civil EngineeringService: Provides Comprehensive Civil Engineering DesignIndustry: Land DevelopmentType: Civil Engineering+12 more

4Creeks, Inc.

Honest, Authentic Solutions

WebsiteSize Estimate: 100-500 employeesUpdated Jun 2026
Service: ArchitectureService: Civil EngineeringIndustry: CommercialType: Civil Engineering+12 more

4D Site Solutions Inc.

Fayetteville, NC

On time, every time.

WebsitePhone1 officeFounded 2002
Service: Civil EngineeringService: Erosion Control DesignIndustry: GovernmentType: Civil Engineering+14 more

4M Engineering

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

Website1 projectsUpdated Jun 2026
Service: Temporary Works and Shoring DesignService: Bridge FalseworkIndustry: BridgesType: Civil Engineering+24 more

50 States Engineering Corp.

Hackensack, NJ

Benefit from an innovative and diverse range of surveying and engineering experience.

WebsitePhone1 office7 projects
Service: Land SurveyingService: Construction layout and stakeoutIndustry: TransitType: Civil Engineering+30 more

5020 Engineering Resource Group, Incorporated

Civil, Water Resources, and Environmental Engineering Services

Website4 leaders1 credentialsFounded 2022
Service: Water and Wastewater EngineeringService: Water and Wastewater Conveyance SystemsIndustry: Water ResourcesType: Civil Engineering+21 more

5D Architecture & Engineering, PLLC

Lynbrook, NY

Full-Service Architecture & Engineering Design

WebsitePhone1 office9 projects
Service: Architectural DesignService: Programming and Master PlanningIndustry: ResidentialType: Architecture & Engineering+24 more

609 Consulting, LLC

Sheridan, WY

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

WebsitePhone4 offices8 leaders
Service: Civil EngineeringService: Road Engineering DesignIndustry: Oil & GasType: Civil Engineering+27 more

66 ENG GROUP

Sapulpa, OK

Empowering people and their projects to thrive.

WebsitePhone2 offices5 leaders
Service: Civil Engineering DesignService: Practical Civil Engineering Solutions Covering Grading And DrainageIndustry: Land DevelopmentType: Civil Engineering+33 more