# Thirdbase Capital

Thirdbase Capital is a Private Equity based in New York, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Founded:** 2019
- **Assets under management:** Undisclosed
- **Website:** thirdbasecap.com
- **LinkedIn:** https://www.linkedin.com/company/thirdbase-capital

## About

Thirdbase Capital is a global private markets investment firm focused on high-conviction investments in transformative technology companies. Site content is the property of 535 West I, LLC (formerly Thirdbase Capital). The firm references portfolio companies including Anthropic, Databricks, OpenAI, and SpaceX.

## Sectors

- transformative technology companies

## Questions

### What investment stage does Thirdbase Capital target?

Thirdbase Capital focuses on early-stage private equity, spanning both startup and growth-phase companies according to public classifications. The firm has not publicly detailed specific check sizes or revenue thresholds as of mid-2026.

### Who founded Thirdbase Capital?

The firm has not publicly disclosed its founding principals or leadership team. No named individuals are confirmed through public record or the firm's official website as of the current research period.

### What is Thirdbase Capital's geographic investment focus?

The firm is based in New York, but its geographic investment mandate is not publicly specified. No specific regional or cross-border investment criteria have been confirmed through public statements.

## Related profiles

- [Third Avenue Management](https://altss.com/profile/third-avenue-management)
- [Third Century Management](https://altss.com/profile/third-century-management)

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Source record modified: 2026-08-11T15:08:18.003Z

Last verified: not supplied by this public snapshot.

## Sources and provenance

- Organization website as recorded: https://thirdbasecap.com/
Source links do not imply that every field was verified on the page modification date. See [Altss methodology](https://altss.com/methodology).

Canonical page: https://altss.com/profile/thirdbase-capital

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology