# Thundermark Capital

Thundermark Capital is a Private Equity based in San Juan, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** San Juan, United States
- **Region:** North America
- **Address:** San Juan, Puerto Rico, United States
- **Founded:** 2023
- **Assets under management:** Undisclosed
- **Website:** thundermark.com
- **LinkedIn:** https://www.linkedin.com/company/thundermark-capital

## Regulatory record

- **Reports private funds:** No

## About

Thundermark Capital is a VC firm investing in early-stage enterprise AI and Robotics startups. Thundermark is an American AI Think Tank established in 2013 to advise global businesses and governments on comprehensive AI strategies. The firm is a member of the NVIDIA VC Alliance and is connected to Y Combinator, MIT, Wharton, Goldman Sachs, and Palantir alumni ecosystems.

## Sectors

- Enterprise Software
- AI/ML
- Robotics & Automation

## People

- Gleb Chuvpilo — Managing Partner
- Jae-Yong Lee — Investments
- Ralph Quintero — Community
- Patrick Morselli — Operations
- John Crandon — General Counsel
- Jake Kramer — Venture Partner
- Santiago Tenorio — Venture Partner
- Will Sanchez — Venture Partner

## Questions

### What does Thundermark Capital invest in?

Thundermark focuses on early-stage deep-technology companies, with an emphasis on robotics, artificial intelligence, machine learning, and enterprise software. The firm targets seed and start-up rounds where physical engineering and complex software converge, backing founders who build machines and the systems that control them.

### Where is Thundermark Capital located, and does the jurisdiction affect its investment model?

Thundermark is headquartered in San Juan, Puerto Rico. Operating under Puerto Rico's tax code — most notably Act 60 — creates a different management-company and fund-formation framework than mainland US funds. This jurisdictional choice can influence carried interest treatment, operational costs, and portfolio-company structuring, making entity-level due diligence an important consideration for limited partners and co-investors.

### Who leads investment decisions at Thundermark Capital?

Thundermark's investment committee and principal leadership are not set out in public record. The firm maintains a deliberately quiet operational profile, and no named founder, chief investment officer, or managing partner has been identified in the firm's official communications or regulatory filings as of mid-2026.

### Does Thundermark participate in fund commitments or only direct deals?

Thundermark's disclosed strategy is limited to direct early-stage venture investments. Whether the firm makes fund commitments, operates separately managed accounts, or participates in co-investment clubs alongside outside GPs cannot be confirmed from available public information.

### What investment stages does Thundermark typically target?

Thundermark concentrates on pre-seed, seed, and start-up stage financings — the earliest institutional entry points. The firm writes first checks into companies at the intersection of hardware and software, where technical risk is high and commercialization timelines can be long.

## Related profiles

- [Thundering Herd](https://altss.com/profile/thundering-herd)
- [Thursday Ventures](https://altss.com/profile/thursday-ventures)

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Last updated: 2026-08-11T15:08:18.003Z

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