John Hennessey works as a Vice President at Greenbacker Group. The firm's known portfolio counts 9 companies.
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Investment focus
- Stage
- Late-Stage
Contacts
Affiliated funds' portfolios
Vice President at Greenbacker Group, whose known portfolio counts 9 companies
- Peak Power
- Swell Energy
- Lightshift Energy
- Relevate Power
- Revolv
- Sunstone Credit
- 3V Infrastructure
- Nexus Program Management Group
- Telyon
Investor Profile
Founders in the listed sectors Climate, FinTech, Hardware and Real Estate, and focus areas Battery, Clean Energy, Clean Tech and Clean and Renewable Energy fall inside that listing.
Stage-wise, the deals at Greenbacker Group cluster around Late-Stage rounds.
What the affiliated firm has backed is the closest available signal on whether John Hennessey is worth approaching.
Colleagues at Greenbacker Group
Frequently asked questions
Who is John Hennessey?
John Hennessey is a private equity investor based in Dallas, Texas, United States, listed as Vice President at Greenbacker Group. The known portfolio of that firm counts 9 companies. That portfolio belongs to the firm, not to John Hennessey personally.
What does John Hennessey invest in?
Listed sectors include Climate, FinTech, Hardware and Real Estate; listed focus areas include Battery, Clean Energy, Clean Tech and Clean and Renewable Energy. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does John Hennessey invest at?
Greenbacker Group appears in Late-Stage rounds across its known deals, and John Hennessey is listed there as Vice President. 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 John Hennessey listed at?
John Hennessey is listed as Vice President at Greenbacker Group. One other person in the database shares a firm with John Hennessey.
How do I contact John Hennessey?
An email address, a phone number and a LinkedIn page are on file for John Hennessey. 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