Join us in celebrating our newest Shareholders

SEATTLE, WA, April 21, 2021 – Coffman announced seven new shareholders and a new director on Coffman’s board of directors. New shareholders include Fred Barker, SE; Matt Hebert, PE; Jeff Mitchell, SE; Trevor Schultz, PE; Aman Shah, PE; Matthew Stielstra, SE; and Jonathan Wirthlin, SE. Coffman’s shareholders elected Chad Heimbigner, PE, to serve on the board of directors. These individuals have been integral as leaders in their respective offices and engineering disciplines.

“New shareholders are critically important to long term sustainability of the company by bolstering our leadership team. They strengthen the company with fresh energy and perspectives. I am pleased to welcome these leaders from across the company and I look forward to their influence on our business. We are fortunate to have their commitment to the success of our clients and to the company,” said  Dave Ruff, PE, CEO and Chair

Meet the new Principals

Fred Barker, SE, is a structural engineer with broad experience in structural systems and materials. He manages several national retail/commercial clients and champions the federal market sector in the Puget Sound from Coffman’s Seattle office.

Matt Hebert, PE, is a mechanical engineer in the Spokane office. He has a background in manufacturing and field commissioning and manages complex heavy industrial projects, including cranes, maintenance travelers, and custom mechanical system design.

Jeff Mitchell, SE, is a structural engineer in the Spokane office. He manages industrial client relationships and complex industrial projects, including cranes, heavy equipment, oil and gas facilities, and manufacturing plants.

Trevor Schultz, PE, is a mechanical engineer in the Seattle office focused on industrial facilities and commercial buildings. He has developed longstanding relationships with architects and clients in this sector.

New Principal & Board Director Announcement

Aman Shah, PE, is a fire protection engineer and his leadership has led to the development of the fire protection department in the San Diego office. He has been instrumental in developing a broad client base while also working with local jurisdictions to establish code policies for fire and life safety related items.

Matt Stielstra, SE, is a structural engineer in the Anchorage office with broad experience working with industrial, oil and gas, commercial, and government clients. His military project experience has enabled him to work in locations around the world.

Jonathan Wirthlin, SE, is a vice president and regional manager for Coffman’s three LA-OC offices. He is a structural engineer with a niche focus on seismic design and retrofitting.


New Principal & Board Director Announcement

New Board Director announced

Chad Heimbigner, PE is a civil engineering principal in the Spokane office and has extensive experience with design-build project collaboration. He will serve on the board of directors for the 2021 to 2024 term.

“Chad is a respected engineer and colleague with a deep commitment to our Coffman culture.  I welcome his infectious positivity and look forward to hearing his new ideas. He will be a great asset to the board as we shape the future of this great company,” said Ruff.

New Principal & Board Director Announcement

These appointments follow a record year for Coffman. The company ended 2020 with revenue of $103 million and nearly 600 employees located in offices across the country.

Complete bios are available at