Demetri Themelis
Demetri Themelis is Co-Founder and CEO at Knock. Previously, he served as Executive Officer, Director, and Promoter at Knock, Inc.
RealPage Acquires Seattle Apartment Property Management Startup Knock Founded in 2014
RealPage, a real estate technology company backed by Thoma Bravo, is acquiring Seattle-based startup Knock, which provides software for apartment property managers. Knock, founded in 2014 and serving over two million units, will retain its brand post-acquisition, though financial terms were not disclosed.
Early-stage product prototyping: Coda, Unearth, Knock and Highspot stress design partners and frequent user feedback
The article explains that prototyping is essential for early-stage companies and that approaches vary by market, customers, and technology; lessons from Coda, Unearth, Knock, and Highspot highlight practical principles for developing viable products. A key recommendation is to bring in external design partners and regularly collect and integrate their feedback—Coda, for example, used weekly in-person user sessions to iterate rapidly.
Demetri Themelis - Knock - What Fuels You
Demetri Themelis is the Co-Founder and CEO at Knock, the leading performance management platform and CRM for multifamily property owners and managers. In his eight years at Knock, Demetri has led the company to win three start-up competitions and successfully raised $50M in funding – all while developing meaningful friendships along the way. Prior to co-founding Knock, he worked in equity sales at UBS. He is an avid skier and outdoorsman, and has competed in numerous competitions including the US Freeskiing Open. Demetri is a proud member of the Seattle Greek-American community and serves on the parish council of St…
Organizations
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Cormint, Inc. Board Member 2026–present · current
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Knock Executive Officer, Director, Promoter 2016–present, Co-founder · current
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RealPage SVP Strategy 2022–2026 · past
Education
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Foster School of Business BA Finance & International Business · 2004–2008
