Public engineering firm directory

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ASI Industrial

Billings, MT

Build On Our Experience

Website1 office1 projectsUpdated Jun 2026

Project: KSU Grain Science Project

Service: Engineering & DesignService: Process EngineeringService: Civil Engineering & DraftingIndustry: AgricultureIndustry: IndustrialType: Process Engineering+14 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

Davies Engineering Group

Cincinnati, OH

Engineering for Everything.

WebsitePhone4 offices1 projects9 leaders2 credentialsSize Estimate: 100+ employees

Project: Expansion of Buffalo Trace Distillery

Service: MEP EngineeringService: HVAC designService: Electrical engineeringIndustry: IndustrialIndustry: Food & BeverageType: MEP+38 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

LoopCalTech LLC

Engineering Tomorrow

Website1 leaders1 credentialsSize Estimate: 1-25 employeesUpdated Jun 2026

Service detail: Instrumentation and Control Systems

Service: Instrumentation and Control SystemsService: Distributed Control Systems (DCS) design and integrationService: Process automation and SCADA systemsIndustry: Oil & GasIndustry: PetrochemicalType: Automation & Controls+80 more

Nelson Baker Biotech

Innovation. Engineering. Construction.

Website4 projectsUpdated Jun 2026

Project: Truck to Rail Ethanol Transload Facility

Service: Greenfield Plant DesignService: Process Scale-UpService: Retrofits and UpgradesIndustry: Biomass & BioenergyIndustry: Renewable EnergyType: EPC+26 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

Venture Engineering & Construction, Inc.

Warrendale, PA

Sustainable Engineering Solutions for the Biogas and Process Industries

WebsitePhone1 office12 leadersFounded 2007Updated Jun 2026

Service detail: Process Engineering

Service: Process EngineeringService: Biogas Conditioning & TreatmentService: Brine Recycling & CrystallizationIndustry: Biomass & BioenergyIndustry: Waste-to-EnergyType: Process Engineering+25 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