Ben Rutkowski

As a founding partner at Stack, Ben is the driving force behind our operational and investment endeavors. With over two decades of industry expertise, he infuses every project with an unwavering passion and an extensive reservoir of knowledge. Ben’s reputation as an innovative site developer resonates throughout the local market.

His remarkable track record boasts the successful development of 800 single-family homes and townhomes across the Pacific Northwest—a testament to his vision and commitment.

Patrick Cobb

Patrick, a founding partner of Stack, guides all development activities. Over his career, Patrick has orchestrated a project pipeline totaling over 450,000 square feet. His oversight extends to the entitlement process, shaping over 30 boutique residential infill developments in and around Seattle. With a robust background in architecture and planning, Patrick infuses his work with a visionary spirit, boundless creativity, and attention to detail. Beyond development, he plays a pivotal role in the company’s expansion through strategic recruitment, management, and firm-wide marketing efforts.

Wanjing Xiao

Wanjing, a founding partner of Stack, oversees both company and development finance. With over a decade of experience, she has navigated the realms of development, investment, and design across a diverse asset portfolio. In the Seattle local market, Wanjing has adeptly managed multifamily and townhome projects totaling over 600 units with a capitalized value exceeding $300 million, and delivered projects valued at over $50 million. Beyond development acumen, Wanjing has cultivated positive relationships with investors and lenders, facilitating transactions over $30 million.