An angel investor, Cy Sack has one known investment, WeWork.
Is Cy Sack a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Stage
- Growth
- Sector
- Real Estate
- Focus
- Commercial Real EstateCorporate Real EstateCoworkingFlexible WorkspacePropTech
Contacts
Cy Sack portfolio company (1)
- WeWork
Investor Profile
Founders in the listed sector Real Estate, and focus areas Commercial Real Estate, Corporate Real Estate, Coworking and Flexible Workspace will recognize the pattern in this portfolio.
Cy Sack is listed for Growth rounds in the database.
The portfolio and focus above give founders context on whether Cy Sack matches their raise.
Similar investors
Showing 20 of 99
Justin Weber
angel investor
Sean Breuner
angel investor
Los Angeles, United States
Yas Hi
angel investor
Jared Kushner
operator angel
New York, United States
Shawn Welch
angel investor
Atlanta, United States
Brian S.
angel investor and operator angel
San Rafael, United States
Roelof Opperman
angel investor and operator angel
Dallas, United States
Siddharth Singhal
angel investor and operator angel
United States
Sam Stein
angel investor
T. Luke Sherwin
angel investor and operator angel
Brooklyn, United States
Ryan Simonetti
President & CEO
New York, United States
Sal Jafar
angel investor and operator angel
Dallas, United States
Sadie Kruse
angel investor
Keith Wasserman
President & Co-Founder
Los Angeles, United States
Daniel Wolfson
Partner
New York, United States
Chris Larsen
angel investor
CJ Soderlund
angel investor
Salem, United States
Ilya Venske
angel investor
Krystal Simon
angel investor
Cyril Berdugo
operator angel
New York, United States
Frequently asked questions
Who is Cy Sack?
Cy Sack is an angel investor with one known investment on file, WeWork. The sections above list the sectors and stages attached to that record.
What does Cy Sack invest in?
Listed sectors include Real Estate; listed focus areas include Commercial Real Estate, Corporate Real Estate, Coworking and Flexible Workspace. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Cy Sack invest at?
The database lists Cy Sack for Growth rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
How do I contact Cy Sack?
An email address and a LinkedIn page are on file for Cy Sack. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 26 September 2026 · How this data is built · Report a correction or request removal