# Gill Foundation

Gill Foundation is an Endowment / Foundation based in Denver, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** Denver, United States
- **Region:** North America
- **Address:** 1550 Wewatta Street, Suite 720, Denver, CO 80202, United States
- **Founded:** 1994
- **Assets under management:** $475M
- **Website:** gillfoundation.org
- **LinkedIn:** https://www.linkedin.com/company/gill-foundation
- **Wikidata:** Q5561887

## Regulatory record

- **Reports private funds:** No

## About

Tim Gill founded the Denver-based Gill Foundation in 1994 after exiting Quark, Inc., the desktop publishing software company he built and which generated the underlying wealth. His husband, former U.S. Ambassador Scott Miller, serves on the board. The foundation operates with a dual mandate: advancing LGBTQ legal and social equality nationally while supporting a prosperous civic infrastructure in Colorado. The foundation deploys endowment capital across a deliberately broad investment strategy spanning buyout, venture capital, growth equity, mezzanine, and secondaries. It commits to external funds and engages in direct co-investments. The grantmaking portfolio focuses on litigation, policy advocacy, and public education through organizations that advance nondiscrimination protections. The foundation was an early architect of the OutGiving network, a donor collaborative it established to increase philanthropic firepower behind LGBTQ causes. In May 2025, longtime civil rights attorney Kate Kendell was appointed CEO, succeeding Brad Clark, who had led the foundation since 2012. The foundation operates from a commercial office at 1550 Wewatta Street in Denver and maintains its institutional archive at History Colorado Center. Tim Gill and Scott Miller are also known participants in Colorado political giving circles, including the so-called 'Gang of Four' donor group that includes Governor Jared Polis. The Gill Foundation functions as both a charitable endowment and an activist philanthropic enterprise, with investment returns directly funding advocacy. By combining a diversified multi-asset portfolio with high-touch donor organizing through vehicles like OutGiving, the foundation converts financial capital into policy influence — a structural hybrid rare among single-donor foundations where grantmaking and investment arms typically remain operationally separate.

## Sectors

- Media & Entertainment
- Enterprise Software

## People

- Tim Gill — Founder
- Kate Kendell — CEO
- Brad Clark — President and CEO
- Scott Miller — Board Member

## Questions

### Is the Gill Foundation's endowment managed internally or by an outsourced CIO?

The foundation has not disclosed an outsourced CIO arrangement. Publicly available information shows a lean leadership structure — CEO, board, and program staff — implying that asset allocation and manager selection are conducted in-house by senior leadership with possible support from external consultants, though no formal advisory relationship has been confirmed.

### How is the Gill Foundation related to OutGiving?

The Gill Foundation established OutGiving as a professional network to aggregate high-net-worth donors focused on LGBTQ equality. It functions as a donor collaborative that pools capital and coordinates grantmaking strategy, effectively extending the Gill Foundation's influence beyond its own endowment by mobilizing external aligned wealth.

### Does the foundation maintain a separate impact or PRI allocation?

The foundation has not publicly disclosed a dedicated program-related investment carve-out. However, its broad investment mandate — spanning early-stage venture to growth equity — and its mission alignment suggest that many direct investments carry a double-bottom-line character, even if not formally accounted as PRIs in public tax filings.

## Related profiles

- [City of Delray Beach Firefighters' Retirement System](https://altss.com/profile/city-of-delray-beach-fl)
- [Pipefitters Local Union 274](https://altss.com/profile/pipefitters-local-union-274)

---

Last updated: 2026-08-11T02:43:31.692Z

Canonical page: https://altss.com/profile/gill-foundation

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