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Allen Engineering and Science

Jackson, MS

Allen Engineering and Science is an environmental, civil, and structural engineering practice serving private and public clients across the southeastern United States. Founded in 1993 as Eco-Systems and renamed in 2013, the company combines engineering, environmental science, planning, and construction management for oil and gas, manufacturing, energy, chemical, solid waste, real estate, and public-sector programs.

WebsitePhone6 offices5 leadersFounded 1993Updated Jun 2026

Service detail: Engineering

Service: EngineeringService: Civil EngineeringService: Environmental EngineeringIndustry: Oil & GasIndustry: ManufacturingType: Civil Engineering+26 more

Anchor QEA

Seattle, WA

Transforming Our Environment and Communities, with Integrity and Vibe

WebsitePhone28 offices4 projects4 leadersSize Estimate: 200-1,000 employeesUpdated Jun 2026

Project: Hancock County Marsh Living Shoreline

Service: EngineeringService: Civil EngineeringService: Coastal ResilienceIndustry: Power GenerationIndustry: FederalType: Civil Engineering+46 more

Atwell

Southfield, MI

We create solutions for the built environment.

Website18 offices12 projects6 leaders8 credentialsSize Estimate: 1,000+ employeesUpdated Jun 2026

Project: Walmart Metro Atlanta Drone Delivery Operations Support

Service: Program & Development ServicesService: Program ManagementService: Owner's Representative ServicesIndustry: Land DevelopmentIndustry: Oil & GasType: Civil Engineering+38 more

Engineered Utility Solutions Inc

Houston, TX

Your Partners In Project Delivery

WebsitePhone1 office1 leadersFounded 2019Updated Jun 2026

Service detail: Engineering and Design

Service: Engineering and DesignService: Engineering Design & DraftingService: Contract DevelopmentIndustry: Electric UtilitiesIndustry: InfrastructureType: Design-Build+35 more

Hargrove Engineers & Constructors

Mobile, AL

The right people. The right place. The right time.

WebsitePhone18 offices1 credentialsSize Estimate: 2,700 employeesUpdated Jun 2026

Service detail: Engineering Design

Service: Engineering DesignService: Conceptual and Front End StudiesService: Capital Projects EngineeringIndustry: AgricultureIndustry: ChemicalsType: EPC+27 more

LJA Engineering, Inc.

Houston, TX

Client Focused.

WebsitePhone5 officesFounded 1972Updated Jun 2026

Service detail: Land Development

Service: Land DevelopmentService: Residential Land DevelopmentService: Special Financing District ServicesIndustry: Land DevelopmentIndustry: InfrastructureType: Civil Engineering+68 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

PGA Engineers, Inc.

Houston, TX

Critical Infrastructure - Consulting, Design, Engineering and Project Management

Website1 office8 projects2 leaders7 credentialsFounded 2010Updated Jun 2026

Project: Fort Bend County Information Technology Building and Data Center

Service: Electrical EngineeringService: Energy Conservation and Sustainable EnergyService: Emergency Power SystemsIndustry: InfrastructureIndustry: BridgesType: Electrical Engineering+39 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

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

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