Sean Black — investor profile photo

Sean Black

Co-Founder & CEO @ Knock.com

📍 New York, New York, United States🔄 Updated November 2026💼 2 investments📅 13 years investing🗓 Last invested Mar 2013𝕏 @upgrade_to_unlock
Operator-angel🌍 United States
2
Total investments
0
Early stage
0
Mid stage
0
Late stage
13y
Years active

Portfolio

2 investments · sorted by recency
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Investor & Advisor
Mar 2013
Investing in tech companies that bring radical transparency, convenience and savings to consumers. Investments include Knock.com, NerdWallet, SeatGeek, Paintzen, Zeel, Peach, Smith (acquired by Porch.com) and Trulia. Advisory board roles include Handwriting.io, Nestio and Source3 (acquired by Facebook). I was also a mentor at Techstars and 500 Startups for 3 years where I was a humble helper to a few dozen companies.
Investor
Mar 2013
Investing in tech companies that bring radical transparency, convenience and savings to consumers. Investments include Knock.com, NerdWallet, SeatGeek, Paintzen, Zeel, Peach, Smith (acquired by Porch.com) and Trulia. Advisory board roles include Handwriting.io, Nestio and Source3 (acquired by Facebook). I was also a mentor at Techstars and 500 Startups for 3 years where I was a humble helper to a few dozen companies.
Experience · 6 entries
All (6)
Investments (2)
Founder (4)
2015
Co-Founder & CEO
Sep 2015
Use the money “tied up” in your current home to purchase your next one. A 4x Inc. Best Workplace honoree! | NMLS #1958445 Knock is on a mission to build a better home buying and selling experience. We’re a group of caring people who came together from across the industry with the belief there had to be a better way to serve people in the journey between homes. The first-of-its-kind Knock Bridge Loan™ gives everyone in the process more convenience, certainty, and competitiveness by letting homebuyers use the money “tied up” in their current home to buy their new one! Founded in 2015, we have earned the industry’s trust: an A+ Better Business Bureau rating and relationships with more than 120,000 real estate agents in our 75 markets across the US. We are backed by leading investors, including Foundry Group, Second Century Ventures, RRE, Greycroft, and Parker89. We’re most proud of the stories from people we’ve helped get their new home, and the five-star Zillow rating from over 750 reviews.
early stageReal Estate
2013
Investor & Advisor
Mar 2013
Investing in tech companies that bring radical transparency, convenience and savings to consumers. Investments include Knock.com, NerdWallet, SeatGeek, Paintzen, Zeel, Peach, Smith (acquired by Porch.com) and Trulia. Advisory board roles include Handwriting.io, Nestio and Source3 (acquired by Facebook). I was also a mentor at Techstars and 500 Startups for 3 years where I was a humble helper to a few dozen companies.
Investor
Mar 2013
Investing in tech companies that bring radical transparency, convenience and savings to consumers. Investments include Knock.com, NerdWallet, SeatGeek, Paintzen, Zeel, Peach, Smith (acquired by Porch.com) and Trulia. Advisory board roles include Handwriting.io, Nestio and Source3 (acquired by Facebook). I was also a mentor at Techstars and 500 Startups for 3 years where I was a humble helper to a few dozen companies.
2010
Founder & CEO
Apr 2010
Backed by top-tier venture capital investors Accel Partners, First Round Capital, Nextview Ventures and AOL Ventures, SalesCrunch (aka Crunched) was a sales analytics platform that provided companies deep insights into their customers.
1999
Everymile.com
Founder & CEO
1999
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