Experienced. Loyal. Dedicated.
JHI is a team of dedicated professionals that work together to bring engineering solutions to our clients in heavy industry. Over forty percent of our employees have been with JHI for more than ten years and many have been with us for over twenty. These loyal team members not only bring their experience to every project but they serve as mentors to our newer employees.
Multi-disciplined problem solvers.
Analyzing and designing various structures to deliver a safe and cost effective solution.
From cost estimating to equipment to piping and more, JHI understands the mechanical needs in all settings.
A single source responsibility for a variety of electrical design and maintenance services from concept to construction.
Using our experience, expertise, and communication to guide projects to a successful completion.
Troubleshooting existing systems or designing new systems from the ground up, our instrumentation and controls specialists are capable and experienced.
Entrepreneurs with a Vision
Ed Hays and Horst Jeddeloh started Jeddeloh-Hays Engineering with a couple of employees at a small office in Southeast Portland.
Bigger and Better
JHI moves to the office building on Macadam Avenue in Portland's South Waterfront, which would become JHI's home for the next 40 years.
Growing to over 30 employees, JHI continues to have close partnerships with clients in heavy industry throughout the Pacific Northwest.
Spokane Office Opens
To service the needs of clients in the Spokane area, JHI expands to a second location.
Kalama Office Opens
With recent cutbacks at nearby Longview Fibre, JHI hires several employees and opens a third location in Kalama, Washington.
New HQ Location
JHI moves its 50 Portland employees to a new headquarters building in Johns Landing with remodeling plans.
Return to Remodeled Space
After over two years of working from home, JHI Portland employees return to their newly remodeled headquarters.