
3Bears Technical Services
Hixson, TNExperts in Nuclear Operations and Waste Management Solutions
Service detail: Engineering and Project Management
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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

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

Your Partner for Professional Engineering Consulting
Project: WSLP-105 and WSLP-108 Drainage Structures, Levees and Floodwalls
Integrated Engineering, Environmental, and IT Solutions for Efficiency, Safety, and Sustainability
Project: Redstone Arsenal Facility Audits & Energy Systems

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

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

Innovative Water Resource Engineering
Project: Municipal Sequential Batch Reactor Wastewater Treatment Process

Partnering to Build & Protect What Matters Most
Project: ADOT I-10 Tucson Reconstruction

If It Can Be Done, It Will Be Done
Service detail: Water

Grow Your Agribusiness. Reduce Your Stress.
Project: DairyRidge Permitting and Compliance Support

Apex Engineering Group brings clarity and confidence to complex engineering projects.
Project: City of Detroit Lakes, MN Municipal Engineering Services

Innovative Solutions to Complex Problems
Project: Switchback Autonomous Ground Platform

Fuel Connects People. And Protects Them.
Project: Boise Airport New Fuel Facility
We create solutions for the built environment.
Project: Walmart Metro Atlanta Drone Delivery Operations Support
Better, Faster, Different
Project: Air National Guard PFAS Assessments Nationwide

Designing What's Next
Project: Utility-Scale BESS Engineering and Design
An environmental services company.
Service detail: Environmental Management
The Experience to Listen. The Power to Solve.
Project: Rome Water Pollution Control Facility Anaerobic Digestion and Combined Heat and Power Improvements

Highest quality engineering solutions to complex problems in the energy industry
Service detail: Well Engineering

Engineering Land & Water Resources for the Future
Project: Beaver Creek Watershed Assessment

Acoustical engineering and research solutions for defense, aerospace, and aviation programs
Service detail: Noise Measurement & supporting detail Characterization
Creating solutions. Helping people. Improving our world.
Project: I-91 Interchange 29 Flyover Bridge and Charter Oak Bridge
Finding a better way.
Service detail: Transportation Solutions