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Tom Petry.
Knock CEO Tom Petry.

Knock is raising cash to help grow its scheduling and communication platform for property managers.

The Seattle startup just reeled in $1.65 million of a larger $2.5 million round from angel investors and its own customers. The funding will be used to build out its technology that facilitates communication between residential property managers and renters — responding to questions, organizing tours, etc.

“Knock is your control center for prospect communications,” reads the company’s website.


Originally called ZipDigs, the 12-person company was co-founded in 2014 by Tom Petry and Demetri Themelis, who previously worked together at UBS Wealth Management. Jay Zeng is the company’s other co-founder.

“Companies like OpenTable and ZocDoc have brought engaging and efficient scheduling solutions to what used to be pen-and-paper industries, and that’s what we’re doing with Knock,” Petry said in a statement. “We’re giving property managers and leasing teams the tools to make renting more consumable and engaging, and our growth is a testament to that.”

Knock’s product can be used with property management software systems like Yardi and Realpage, and also provides back-end analytics data to highlight engagement and internal sales statistics. The company plans to launch an API for developers later this year.

Knock is one of many tech-focused real estate companies in the Seattle area, ranging from giants like Zillow and Redfin to smaller startups like Imprev and Estately.

Total funding for Knock is $2.7 million.

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