WindSail Capital Group is a private equity firm and venture debt provider. Based in Boston, Massachusetts, United States. Among the 10 companies in the known portfolio are Nanoramic Laboratories, Axiom Cloud, Ubees, Brightly Ventures, Upstart Power and Copperstone Technologies.
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Investment focus
Contacts
Who to pitch at WindSail Capital Group
WindSail Capital Group portfolio companies (10)
- Nanoramic Laboratories
- Axiom Cloud
- Ubees
- Brightly Ventures
- Upstart Power
- Copperstone Technologies
- Nanoramic
- Stafl Systems
- Velocia
- Weatherflow
Co-investors
Funds that share portfolio companies with WindSail Capital Group.
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About WindSail Capital Group
The firm's listing covers sectors AI, Climate, Consumer and Hardware, and focus areas Automotive, Battery, Clean Energy and Clean Tech; known deals cluster at Growth, Seed and Series A.
The team counts 3 people in our database. Michael Rand (Co-Founder & Managing Director) and Ian Bowles (Co-Founder and Managing Director) are shown as the contacts to pitch.
Across the known portfolio, 18 co-investors appear alongside WindSail Capital Group, including GM Ventures, Enphase Energy and H+ Partners.
Frequently asked questions
What is WindSail Capital Group?
WindSail Capital Group is a private equity firm and venture debt provider based in Boston, Massachusetts, United States, with a known portfolio of 10 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does WindSail Capital Group invest in?
Listed sectors include AI, Climate, Consumer and Hardware; listed focus areas include Automotive, Battery, Clean Energy and Clean Tech. 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 WindSail Capital Group invest at?
The known deals of WindSail Capital Group include Growth, Seed and Series A rounds. 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 WindSail Capital Group?
2 of the 3 people on file at WindSail Capital Group are listed as contacts for the firm. All 3 have their own profile page.
How do I contact WindSail Capital Group?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 3 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