# Tritium Partners

Tritium Partners is a Private Equity based in Austin, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Austin, United States
- **Region:** North America
- **Address:** Austin, TX, United States
- **Founded:** 2013
- **Assets under management:** Undisclosed
- **Website:** www.tritiumpartners.com
- **LinkedIn:** https://www.linkedin.com/company/tritium-partners

## Regulatory record

- **CRD number:** 173132
- **SEC file number:** 801-107407
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/173132

## About

Tritium Partners is an SEC-registered investment adviser in Austin, TX, registered since 2016. The firm manages approximately $1.9 billion in regulatory assets. It has 28 employees and 26 investment advisers.

## Sectors

- Enterprise Software
- AI/ML
- FinTech
- Digital Health
- Industrial Tech

## People

- David Lack — Managing Partner & Co-Founder
- Philip Siegel — Managing Partner & Co-Founder

## Questions

### Who runs investment decisions at Tritium Partners?

David Lack and Philip Siegel, the firm's co-founders and managing partners, lead all investment decisions. Both spent over a decade as partners at Austin Ventures before launching Tritium in 2013. The partnership structure is deliberately concentrated; there is no disclosed investment committee beyond the two managing partners, and the firm does not publicly list additional senior investment professionals.

### How does Tritium source its deal flow?

Tritium's sourcing model relies heavily on the deep network Lack and Siegel built during their tenure at Austin Ventures and on their concentrated industry focus in software and tech-enabled services. The firm targets founder-owned and entrepreneur-led businesses, which by their nature do not circulate as widely in auction processes. Tritium's smaller fund size and preference for capital-efficient companies also position it to compete on terms other than price, including operational partnership and post-close strategic involvement.

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

Tritium is a direct investor, making control and significant minority equity investments in operating companies. There is no public evidence that the firm commits capital to other private equity or venture funds as a limited partner. The firm's model is built entirely around principal investments where the partners can serve on boards and drive operational change.

### Which sectors does Tritium focus on, and which does it avoid?

Tritium concentrates on enterprise software, AI and machine learning, fintech, digital health, and industrial technology. The firm targets capital-efficient businesses with recurring or re-occurring revenue models. It avoids capital-intensive industries such as heavy manufacturing, traditional energy, and real estate. Retail and consumer-facing businesses have not featured in disclosed portfolio activity.

### How is Tritium structured relative to Austin Ventures?

Tritium is an entirely independent firm, not a spinout or subsidiary of Austin Ventures. David Lack and Philip Siegel left Austin Ventures voluntarily in 2013 after more than a decade at the firm to build a smaller, more concentrated lower-middle-market vehicle. There is no shared fund structure, GP affiliation, or overlapping limited partner base publicly disclosed between the two firms.

## Related profiles

- [Tritemius](https://altss.com/profile/tritemius)
- [Triton Partners](https://altss.com/profile/triton)

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Last updated: 2026-06-03T20:00:00.000Z

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