William Ackman is an angel investor. The known portfolio counts 4 companies: Relationship Science, PlaySight Interactive, Kudo and Nitrous.
Is William Ackman a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
Contacts
William Ackman portfolio companies (4)
- Relationship Science
- PlaySight Interactive
- Kudo
- Nitrous
Investor Profile
Founders in the listed sectors Consumer, FinTech, SaaS and Travel, and focus areas Analytics, Asset Management, Board Member and Cloud Infrastructure will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Growth, Series A and Series B rounds.
The portfolio and focus above give founders context on whether William Ackman matches their raise.
Similar investors
Showing 18 of 98
Charles Petruccelli
angel investor
Bob Muglia
angel investor
United States
Dan S.
Senior Managing Director/Founder
Kansas City, United States
Alex Mashinsky
The truth shall set you free
New York City, United States
Michael Montero
General Partner
New York, United States
Joey Levin
operator angel
Michael Vaughan
operator angel
Golden, United States
Jayesh Sahasi
Member
San Francisco, United States
Josh Kushner
angel investor and operator angel
Boston, United States
Joseph Hsieh
angel investor and operator angel
Taipei, Taiwan
Diane Greene
angel investor
San Francisco, United States
Sriram Krishnan
angel investor
United States
Dave Carlson
angel investor and operator angel
Englewood, United States
Claire Hughes Johnson
operator angel
United States
Jake Klein
angel investor and operator angel
Israel
Itai Tsiddon
angel investor and operator angel
New York, United States
Michael Kolowich
operator angel
Yoav Amit
angel investor
Israel
Frequently asked questions
Who is William Ackman?
William Ackman is an angel investor with 4 known investments on file, among them Relationship Science, PlaySight Interactive and Kudo. The sections above list the sectors and stages attached to that record.
What does William Ackman invest in?
Listed sectors include Consumer, FinTech, SaaS and Travel; listed focus areas include Analytics, Asset Management, Board Member and Cloud Infrastructure. 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 William Ackman invest at?
The known deals of William Ackman include Growth, Series A and Series B 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 William Ackman?
An email address, a phone number and a LinkedIn page are on file for William Ackman. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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 5 September 2026 · How this data is built · Report a correction or request removal