
3Bears Technical Services
Hixson, TNExperts in Nuclear Operations and Waste Management Solutions
Service detail: Engineering and Project Management
Public engineering firm directory
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448 results
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Experts in Nuclear Operations and Waste Management Solutions
Service detail: Engineering and Project Management

Providing Quality Services for Over 30 Years
Project: Cumberland Levee Repair at Lake Texoma

Moving Our Communities Infrastructure Forward
Project: Gateway Park

Applying the Latest Technology
Service detail: Civil Engineering
Civil, Coastal, and Environmental Engineering and Consulting Practice
Project: Arney's Mount West Trail

Mission-Driven.
Project: Naval Air Station North Island Soil Investigation

AECOM is a trusted global infrastructure firm delivering professional services spanning cities, transportation, buildings, water, new energy, and the environment. Founded in 1990, with predecessor firms dating back over 120 years, AECOM is ranked #1 in general building, transportation, and water by Engineering News-Record (2025), listed at #259 on the Fortune 500, and generated $16.1 billion of revenue in fiscal year 2024. AECOM delivers planning, design, engineering, consulting, and program and construction management services throughout the full project lifecycle.
Service detail: Planning and Design

Cost Effective Engineering
Service detail: Naval Architecture and Marine Engineering

Your Partner for Professional Engineering Consulting
Project: WSLP-105 and WSLP-108 Drainage Structures, Levees and Floodwalls
AKT Peerless Environmental Services is an environmental consulting and redevelopment firm with more than 35 years of experience and offices across the Midwest, Southeast, and coasts. It serves developers, real estate professionals, financial institutions, government agencies, industrial and manufacturing clients, and petroleum companies. AKT Peerless delivers environmental due diligence, brownfield redevelopment, storage tank compliance, vapor intrusion assessment, environmental remediation, construction loan monitoring, industrial hygiene, sustainability services, and economic development incentive consulting. Its tank services division, AKT Tank Services, focuses on underground and aboveground storage tank work for fuel companies and transportation clients across the Northeast and Midwest.
Service detail: Real Estate Environmental Risk Management
More Than Just a Project
Service detail: Land Surveying

Your trusted partner for municipal engineering.
Project: Upper Uwchlan Township Municipal Authority Administrator

From concept to close-out.
Project: 1400 Chestnut Street Apartments

ASA Engineering & Surveying, LLC is a South Georgia engineering consultancy based in Valdosta, established in 1988, offering civil engineering, environmental engineering, land surveying, and aerial mapping services. Over 85% of business comes from repeat clients across commercial, residential, industrial, and governmental sectors. ASA is Georgia Department of Transportation Pre-Qualified, recognized by the Georgia EPD for exemplary erosion control and environmental plans, and holds FAA Part 107 certification for drone-based aerial mapping.
Service detail: Civil Engineering
Engineering Innovative Solutions
Service detail: Environmental Planning
Engineering and Environmental Consultants
Project: ATOKA Bioremediation Project
Integrated Engineering, Environmental, and IT Solutions for Efficiency, Safety, and Sustainability
Project: Redstone Arsenal Facility Audits & Energy Systems

Providing comprehensive engineering, construction, and construction management services.
Service detail: Federal Services
Design. Build. Sustain. Deliver.
Service detail: Transportation Engineering

Civil, environmental, and municipal engineering solutions
Service detail: Integrated Solid Waste Management

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.
Project: Western Butler County Authority Administration Building

Delivering public infrastructure efficiently, economically, and sustainably.
Service detail: Civil Engineering

Over 50 years of engineering excellence
Project: Berkeley Township SA Bayview Avenue Force Main Replacement

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.
Service detail: Engineering