Find engineering consulting firms by capability and location.

Shaping Stronger Communities

Landing reliable solutions, together

Engineering, Design & Construction Services, Plus Advisory and Grant Support

Alliant Systems is an integrated mechanical engineering and construction firm headquartered in Portland, Oregon, with offices in Eugene and Bend, Oregon, and Seattle, Washington. Founded approximately 25 years ago, Alliant provides in-house mechanical systems engineering, mechanical construction, HVAC and plumbing service, building automation, and energy consulting for commercial, institutional, and light-industrial clients across Oregon and Washington. The firm is known for a true design-build process that integrates engineers, project managers, and field personnel from concept through commissioning, and all principal engineers are LEED-certified.

Transforming Our Environment and Communities, with Integrity and Vibe

Multi-Disciplinary Architecture, Structural Engineering, and BIM Solutions

Bringing customer service and technical expertise to the forefront of structural engineering

Innovative engineering, planning, and code compliance solutions for Pacific Northwest communities

Where extraordinary challenges drive impressive results.

Designing What's Next

Bethel Engineering & Consulting is an environmental consulting and engineering subsidiary of the Bethel Native Corporation (BNC), an Alaska Native Corporation founded in 1973. Operating as part of BNC's integrated family of companies, Bethel Engineering provides a broad range of professional consulting services in environmental science and engineering, including environmental assessment and investigation, environmental compliance, and environmental engineering. It serves federal clients including the FAA, US Air Force, US Army, US Navy, US Coast Guard, Army and Air National Guard, and Bureau of Land Management. BNC subsidiaries are headquartered in Anchorage, Alaska with strategic presences in San Diego and Seattle, and operate throughout North America and select locations in Asia and Europe.

Protecting What You Build

Sound advice in a world full of noise.

Reliable. Responsive. Solutions.

Ingenuity and precision in structural engineering

Geotechnical engineering, project management, and design

Geotechnical consulting delivered with clarity, integrity, and genuine teamwork.

The Right Team Matters

Robots that react to you.

Naval architecture, marine engineering, and consulting services since 1973

A Global Leader in Shipboard Vibration Condition Monitoring

Ready to Address Your Water Quality Needs

Control Systems Engineering

Engineering done differently