William Berkofsky is an Investor at Guggenheim Securities, whose known portfolio counts 8 companies.
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Investment focus
- Stage
- Late-Stage
Contacts
Affiliated funds' portfolios
Investor at Guggenheim Securities, whose known portfolio counts 8 companies
- Mosaic
- Kabbage
- Atari
- Inspire Medical Systems
- LendingPoint
- Advaxis
- National Funding
- Kalamata Capital Group
Investor Profile
Guggenheim Securities appears in Late-Stage rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether William Berkofsky is worth approaching.
Colleagues at Guggenheim Securities
Frequently asked questions
Who is William Berkofsky?
William Berkofsky is a venture debt investor based in New York, United States, listed as Investor at Guggenheim Securities. The known portfolio of that firm counts 8 companies. That portfolio belongs to the firm, not to William Berkofsky personally.
What stage does William Berkofsky invest at?
Guggenheim Securities appears in Late-Stage rounds across its known deals, and William Berkofsky is listed there as Investor. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is William Berkofsky listed at?
William Berkofsky is listed as Investor at Guggenheim Securities. 2 other people in the database share a firm with William Berkofsky.
How do I contact William Berkofsky?
An email address, a phone number and a LinkedIn page are on file for William Berkofsky. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal