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For 80 years, Sellen Construction has been building the future of the Pacific Northwest. We are the largest locally owned commercial construction firm in the region, known for our commitment to quality, safety, innovation, and community. Sellen specializes in complex, high-profile projects for leading clients in diverse sectors including healthcare, life sciences, technology, education, and civic infrastructure. Our approach combines deep local expertise with cutting-edge construction techniques to deliver exceptional results.
The headquarters serves as the central command for Sellen's operations, housing project management, preconstruction services, estimating, business development, finance, human resources, and executive leadership for their Pacific Northwest projects.
Sellen's Seattle office is LEED Gold certified, reflecting their commitment to sustainable building practices. The office is designed with an open plan to encourage collaboration and maximize natural light, providing a modern workspace for its employees.
Sellen fosters a collaborative, safety-first, and innovative work culture. The headquarters is designed to support teamwork and provides a dynamic environment for employees dedicated to building excellence and strong client relationships.
The Seattle headquarters is pivotal as it anchors Sellen's operations in its primary market, the Pacific Northwest. Its location facilitates close collaboration with key clients, partners, and the vibrant tech and biotech industries in the South Lake Union area.
Sellen Construction primarily focuses its operations within the Pacific Northwest region of the United States. Their core construction services and project execution are concentrated in Washington state and surrounding areas. While they may source materials or collaborate with partners with broader reach, their business model is centered on deep local expertise and community engagement within the Pacific Northwest, supporting a wide range of industries with their specialized building capabilities.
227 Westlake Ave N
Seattle
WA
USA
Address: 10900 NE 4th Street, Suite 1430, Bellevue, WA 98004
To provide dedicated support and presence for Sellen's growing portfolio of construction projects in Bellevue and the surrounding Eastside communities, ensuring efficient service delivery and strong local partnerships in a rapidly expanding market.
Address: 1145 Broadway Plaza, Suite 1100, Tacoma, WA 98402
To strengthen Sellen's service capabilities in Tacoma and the South Puget Sound, catering to the specific construction needs of this important industrial and commercial hub and fostering community partnerships.
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As of April 2025, Sellen Construction' leadership includes:
Sellen Construction has been backed by several prominent investors over the years, including:
In the past 12 months, Sellen Construction has focused on strengthening its leadership team, notably with the strategic addition of a new Vice President of People & Culture. This move highlights the company's ongoing commitment to fostering talent development and enhancing organizational excellence to support its growth in the Pacific Northwest.
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Sellen Construction typically utilizes a standard email format for its employees, which commonly consists of the first initial of the employee's first name followed by their full last name. This pattern is consistent across the organization for professional communication.
flastname@sellen.com (e.g., jsmith@sellen.com)
Format
kwhite@sellen.com
Example
80%
Success rate
Sellen Construction News / DJC Seattle • October 26, 2023
The University of Washington Health Sciences Education Building, constructed by Sellen, received a National Award of Merit in the Educational Facilities category from the Design-Build Institute of America (DBIA). The project was recognized for its exemplary design-build practices and innovative approach to educational facility construction....more
Sellen Construction News • May 9, 2023
Sellen Construction announced its selection as a 2023 U.S. Best Managed Company. This prestigious recognition, sponsored by Deloitte Private and The Wall Street Journal, acknowledges outstanding U.S. private companies for their strategic vision and the achievements of their management teams....more
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