# Union Bay Partners

Union Bay Partners is a Private Equity based in Seattle, United States.

## Overview

- **Organization type:** Private Equity
- **Headquarters:** Seattle, United States
- **Region:** North America
- **Address:** Seattle, WA, United States
- **Founded:** 2012
- **Assets under management:** Undisclosed
- **Website:** www.unionbaypartners.com
- **LinkedIn:** https://www.linkedin.com/company/union-bay

## Regulatory record

- **Reports private funds:** No

## About

Union Bay Partners is a private equity firm based in Seattle, US. It focuses on growth investments.

## Sectors

- Enterprise Software
- AI/ML
- Industrial Tech

## Questions

### Does Union Bay Partners have any known portfolio companies?

No portfolio companies are publicly disclosed.This absence of track-record visibility is the principal constraint for any external party evaluating the firm.

### How is Union Bay Partners different from other Seattle private equity firms?

Its defining characteristic is its opacity. Most Seattle-based private equity firms — from Frazier Healthcare to WestRiver Group to Madrona Venture Group — maintain publicly visible teams, fund closes, and portfolio rosters. Union Bay's near-total silence distinguishes it from the regional peer set and aligns it more closely with a discreet family investment office operating under a fund-manager label.

## Related profiles

- [Union Asset](https://altss.com/profile/union-asset)
- [Union Capital Associates](https://altss.com/profile/union-capital-associates)

---

Last updated: 2026-08-10T20:11:24.188Z

Canonical page: https://altss.com/profile/union-bay-partners

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