Karoll is a private equity firm. Team members are concentrated in Bulgaria. The known portfolio is one company, Hydrogenera.
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Investment focus
- Stage
- Late-Stage
- Sector
- Climate
- Focus
- Clean EnergyHydrogen
Contacts
Who to pitch at Karoll
Karoll portfolio company (1)
- Hydrogenera
Co-investors
Funds that share portfolio companies with Karoll.
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About Karoll
The firm's listing covers sector Climate, and focus areas Clean Energy and Hydrogen; listed stage is Late-Stage.
Angel Rabadzhiyski (CEO) and Ventzeslav Petrov (CEO) are listed as the contacts to pitch at Karoll.
Karoll shares portfolio companies with 2 other investment firms, among them Impetus Capital and MFG INVEST.
Frequently asked questions
What is Karoll?
Karoll is a private equity firm whose team is concentrated in Bulgaria, with a known portfolio of one company. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Karoll invest in?
Listed sectors include Climate; listed focus areas include Clean Energy and Hydrogen. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Karoll invest at?
Karoll is listed for Late-Stage rounds in the database. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Karoll?
Both people on file at Karoll are listed as contacts for the firm, each with their own profile page.
How do I contact Karoll?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 2 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal