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

AED Energy Services

Wyomissing, PA

Designing America's Energy Lifelines

WebsitePhone4 offices9 leaders4 credentialsFounded 1989Updated Jun 2026

Service detail: Chemical and Process Design

Service: Chemical and Process DesignService: Documentation and AnalysisService: Specialized CalculationsIndustry: Oil & GasIndustry: PetrochemicalType: Chemical Engineering+64 more

Brown & Root Industrial Services, LLC

Baton Rouge, LA

Comprehensive engineering, construction, maintenance, turnarounds, and specialty services for industrial facilities.

Website4 offices1 credentialsUpdated Jun 2026

Service detail: Plan & Design

Service: Plan & DesignService: EngineeringService: EstimatingIndustry: IndustrialIndustry: Oil & GasType: Industrial Engineering+27 more

C&I Engineering

Louisville, KY

Your Engineering Partner

Website6 offices6 projects3 leaders1 credentialsUpdated Jun 2026

Project: Thin Liquids Production Facility

Service: Multi-Discipline EngineeringService: Civil and structural engineeringService: Mechanical engineeringIndustry: Oil & GasIndustry: PetrochemicalType: Industrial Engineering+45 more

Campos EPC, LLC

Denver, CO

The Leader In Energy Infrastructure

WebsitePhone20 offices1 projects11 leaders3 publicationsFounded 2005

Project: 350MW Data Center Power Generation & Substation Facility

Service: EngineeringService: Pipeline EngineeringService: Transmission And Midstream Pipeline DesignIndustry: Oil & GasIndustry: UtilitiesType: EPC+51 more

Coffman Engineers

Anchorage, AK

The Right Team Matters

WebsitePhone23 offices8 projectsFounded 1982Updated Jun 2026

Project: 100 MW Hydrogen Production Plant

Service: Civil EngineeringService: Bridge EngineeringService: Land SurveyingIndustry: CommercialIndustry: RetailType: Civil Engineering+59 more

ENGlobal Corporation

Houston, TX

Delivering Innovation

WebsitePhone3 officesUpdated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Program ManagementService: Front-End Engineering and Design (FEED)Industry: Oil & GasIndustry: PetrochemicalType: EPC+26 more

FFG Strategic Consulting, LLC

Houston, TX

Your "Project Excellence" Is Our Goal

WebsitePhone2 offices3 projects1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Project: Gas Turbine Lube Oil Flush

Service: Engineering Consulting ServicesService: Piping and Instrumentation Diagram DevelopmentService: Turbine and Generator Advisory ServicesIndustry: Power GenerationIndustry: IndustrialType: EPC+23 more

Howland Engineering and Surveying Co.

Laredo, TX

Excellence in Engineering & Surveying Since 1922

WebsitePhone3 offices11 projects3 leaders6 credentialsFounded 1922

Project: Alexander 9th Grade Center

Service: SurveyingService: ALTA SurveysService: TxDOT SurveyingIndustry: Oil & GasIndustry: Renewable EnergyType: Civil Engineering+63 more

Keystone Engineering Inc.

Mandeville, LA

Engineering Excellence & Innovation in Every Design

WebsitePhone9 offices5 projects8 leaders3 credentialsFounded 1988

Project: Geothermal Water System

Service: Multi-Discipline EngineeringService: Process EngineeringService: Mechanical EngineeringIndustry: Oil & GasIndustry: PetrochemicalType: EPC+26 more

Maxson Engineering

Littleton, CO

Multi-disciplinary systems engineering and design practice

WebsitePhone4 offices1 projects4 leadersFounded 2013Updated Jun 2026

Project: Dream Chaser

Service: Mechanical EngineeringService: HVAC and Building AutomationService: Central Chiller and Boiler PlantsIndustry: Research FacilitiesIndustry: IndustrialType: Mechanical Engineering+40 more

Orion Engineers & Constructors

Mobile, AL

Enabling success and building relationships.

Website4 officesFounded 2001Updated Jun 2026

Service detail: Project Management

Service: Project ManagementService: Feasibility StudiesService: Front End Loading PackagesIndustry: Biomass & BioenergyIndustry: ChemicalsType: Architecture & Engineering+73 more

Peractus Engineering

Houston, TX

Engineering Services Group

WebsitePhone1 office1 projectsUpdated Jun 2026

Project: Grounding, Bonding, and Static Survey

Service: Engineering Consultation & SurveysService: Bonding and Grounding SurveyService: Partial Discharge TestingIndustry: Oil & GasIndustry: PetrochemicalType: Electrical Engineering+41 more

SPEC Consulting, LLC

Albany, NY

Engineering into the Future

WebsitePhone2 offices3 credentialsFounded 1994Updated Jun 2026

Service detail: Engineering

Service: EngineeringService: Chemical Process EngineeringService: Civil EngineeringIndustry: Oil & GasIndustry: PetrochemicalType: Process Engineering+22 more

SRI Global, Inc.

Houston, TX

Professional Design Engineers and Consultants

Website1 office6 projects1 leaders1 credentialsFounded 2011Updated Jun 2026

Project: Cheniere LNG SIS Proof Testing and Risk Assessments

Service: Process EngineeringService: Front-End Engineering Design (FEED)Service: Process Hazard Analysis (PHA)Industry: Oil & GasIndustry: PetrochemicalType: Process Engineering+36 more

Stress Engineering Services, Inc.

Houston, TX

Forward-thinking solutions and a tenacious commitment to cutting edge ideas.

Website2 offices1 credentialsFounded 1972Updated Jun 2026

Service detail: Engineering Design & Analysis

Service: Engineering Design & AnalysisService: Detailed Engineering & AnalysisService: Creative Design & Concept DevelopmentIndustry: AerospaceIndustry: DefenseType: Materials Engineering+34 more

Titan Controls, LLC

Houston, TX

Industrial automation and process control engineering services

Website1 office5 projects5 credentialsFounded 2005Updated Jun 2026

Project: Sweeny Texas Automation Services

Service: Control System EngineeringService: Control System Conceptual DesignService: Control System SpecificationIndustry: Oil & GasIndustry: PetrochemicalType: Automation & Controls+16 more

Upstream Engineering

Houston, TX

Providing value-added engineering and EPC delivery throughout the project cycle

WebsitePhone1 office3 projects2 leadersFounded 2002Size Estimate: 10-50 employees

Project: Mizton Wellhead Platform

Service: Front End EngineeringService: Concept Select StudiesService: Pre-FEED & FEED EngineeringIndustry: Oil & GasIndustry: MarineType: Process Engineering+25 more

Waldemar S. Nelson & Co., Inc.

New Orleans, LA

Engineering is the Foundation of Civilization

WebsitePhone2 offices2 projects2 credentials2 publicationsFounded 1945

Project: Artemis II Space Mission Engineering

Service: Civil, Structural and Architectural EngineeringService: Civil Site and Infrastructure DesignService: Structural Engineering for Complex FacilitiesIndustry: Oil & GasIndustry: PetrochemicalType: Architecture & Engineering+34 more

ZAP Engineering & Construction Services, Inc.

Lakewood, CO

Excellence in Execution

WebsitePhone2 offices7 projectsUpdated Jun 2026

Project: 60 MMSCFD Libby Gas Plant

Service: Civil and Structural EngineeringService: Civil EngineeringService: Structural Engineering DesignIndustry: Oil & GasIndustry: MiningType: Automation & Controls+34 more