html{display:none} About SEL | Schweitzer Engineering Laboratories

About SEL

Making Electric Power Safer, More Reliable, and More Economical

SEL One Building

SEL invents, designs, and builds digital products and systems that protect power grids around the world. This technology prevents blackouts and enables customers to improve power system reliability and safety at a reduced cost. A 100 percent employee-owned company headquartered in Pullman, Washington, SEL has manufactured products in the United States since 1984 and now serves customers worldwide. Our mission is simple: to make electric power safer, more reliable, and more economical.

SEL Values

Our values are not just stated. We teach them regularly and witness the many ways they’ve become deeply ingrained in our company’s processes and culture. Because of this emphasis on our values, and with the responsibility we all feel because we're an employee-owned company, SEL employees truly strive to do the right thing by our colleagues, communities, and customers. The following values drive our business activities:

Customer Focus
Dignity of Work

Ownership Culture

About SEL-Ownership Culture

As part of a long-term strategy for sustained growth, stability, and customer focus, SEL became an employee-owned company in 1994 and transitioned to 100 percent employee ownership in 2009. SEL employee owners are committed to improving processes, making decisions, developing new ideas, and taking the company in new directions. Our ownership value is at the heart of our employee owners’ hard work to reduce costs, increase quality, and create the superior products that enable us to fulfill our mission.


Ed Schweitzer

Edmund O. Schweitzer, III

President, Chairman of the Board, and Chief Technology Officer

Dave Whitehead

Dave Whitehead

Chief Operating Officer

Tony Lee

Tony Lee

Chief Research and Development Officer


Joey Nestegard

Chief Financial Officer

Dave Costello photo

David Costello

Chief Sales and Services Officer


SEL owns and operates three state-of-the-art manufacturing facilities that reflect our commitment to unmatched value in our products and services.

Pullman, Washington, USA
Lewiston, Idaho, USA
Lake Zurich, Illinois, USA

We welcome you to visit our facilities. Please contact us to arrange a tour.

At SEL, we want to stay close to our customers, which is why we have application and integration engineers, customer service representatives, and sales managers in over 60 offices in the United States and in nearly 50 offices internationally. The SEL network of independent sales representatives and distributors provides additional sales support in many regions. Use the support section of our website to locate an SEL office near you.


Employee Owned

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Employee Owned

SEL Manufacturing

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SEL Manufacturing

SEL—30 Years of Innovation

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SEL—30 Years of Innovation

SEL Quality

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SEL Quality