# Arnold Ventures

Arnold Ventures is an Endowment / Foundation based in Houston, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** Houston, United States
- **Region:** North America
- **Address:** 1717 West Loop South Suite 1800, Houston, TX 77027-3048, United States
- **Founded:** 2008
- **Assets under management:** 4310 (Altss estimate)
- **Website:** arnoldventures.org
- **LinkedIn:** https://www.linkedin.com/company/arnold-ventures

## Regulatory record

- **Reports private funds:** No

## About

The Laura and John Arnold Foundation was founded in 2008 by John D. Arnold, former Centaurus Energy principal, and Laura Arnold. It restructured in 2019 as Arnold Ventures LLC while retaining its philanthropic mandate. The Arnolds signed the Giving Pledge in 2010. Arnold Ventures targets direct holdings and limited partner commitments in energy infrastructure, healthcare delivery, and education technology. Confirmed positions include Grid United LLC, Civica Rx, Fervo Energy, and Copper. The firm operates across the United States with emphasis on domestic policy outcomes and maintains a Washington, DC office for advocacy work. Asset classes span operating businesses, venture-stage companies, and select public equities such as Meta Platforms. The organization employs 189 professionals. Additional vehicles include the Action Now Initiative, a 501(c)(4) entity established in 2011 for policy advocacy. John Arnold joined the Meta Platforms board in 2024. Kelli Rhee has led as President and CEO since 2017. Arnold Ventures uses an LLC structure that permits both grant-making and direct investment in operating entities, distinct from traditional private foundations. This architecture supports ownership of Grid United at 100 percent through Centaurus Capital LP alongside philanthropic disbursements exceeding $2 billion since inception.

## Sectors

- Healthcare
- Education
- Criminal Justice

## Offices

- Washington, DC

## People

- John D. Arnold — Co-founder and Co-chair
- Laura Arnold — Co-founder and Co-chair

## Questions

### Who runs investment decisions at Arnold Ventures?

Kelli Rhee serves as President and CEO. John D. Arnold and Laura Arnold act as co-chairs and retain involvement in capital allocation.

### Does Arnold Ventures participate in fund commitments or only direct deals?

The firm holds both direct ownership positions, such as 100 percent of Grid United, and limited partner stakes in venture vehicles including Fervo Energy and Science Exchange.

### What investment stages does Arnold Ventures typically target?

Holdings range from venture-stage companies such as Type One Energy to mature operating businesses including Civica Rx and Grid United.

### How is Arnold Ventures related to Centaurus Capital?

John Arnold operates personal and family investments through Centaurus Capital LP, which holds 100 percent of Grid United on behalf of the Arnolds.

### Which sectors does Arnold Ventures explicitly prioritize?

Primary focus areas include criminal justice reform, healthcare access and pricing, education outcomes, and energy infrastructure.

## Related profiles

- [Hrvatska Banka za Obnovu i Razvitak](https://altss.com/profile/hrvatska-banka-za-obnovu-i-razvitak)
- [BDC Capital](https://altss.com/profile/bdc-capital)

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

Canonical page: https://altss.com/profile/laura-and-john-arnold-foundation

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