# Denniston Family Office

Denniston Family Office is a Single Family Office based in Corpus Christi, United States.

## Overview

- **Organization type:** Single Family Office
- **Headquarters:** Corpus Christi, United States
- **Region:** North America
- **Address:** 800 North Shoreline Blvd. 27th floor, South Tower, Corpus Christi, TX 78401
- **Assets under management:** Undisclosed
- **Website:** dennistonfamilyoffice.com
- **LinkedIn:** https://www.linkedin.com/company/denniston-data-inc

## Regulatory record

- **Reports private funds:** No

## About

Phil Denniston founded the office following sales of ventures such as Official Disability Guidelines, Medical Device Register, and Data Pharmaceutica. Patricia Whelan and Phil LeFevre participate as family members with prior operating roles at those entities. The office allocates across hedge funds, private equity, venture funds, direct investments in operating companies, real estate, private credit, and infrastructure. It maintains exposure to early and late-stage ventures and holds positions in gold and precious metals. Geographic reach spans North America, Europe, Asia, Africa, South America, the Caribbean, the Middle East, and Oceania. No public figures exist for assets under management or headcount. The firm lists one primary office in Corpus Christi and maintains affiliations with Stanford, Harvard Business School, and Williston Northampton School alumni networks. It operates the Denniston Family Medical Research Foundation as a separate philanthropic vehicle. The single-family structure channels decisions through the founding principal and immediate family members, with no external fund vehicles or third-party capital mandates disclosed.

## Sectors

- ClimateTech
- Energy Transition & Renewables
- PropTech
- Distressed & Turnaround
- GovTech
- AgriTech & FoodTech
- Enterprise Software
- ESG

## People

- Phil Denniston — Founder
- Patricia Whelan — Family Member
- Phil LeFevre — Family Member

## Questions

### Who runs investment decisions at Denniston Family Office?

Phil Denniston directs decisions as founder. Patricia Whelan and Phil LeFevre participate as family members with operating backgrounds at predecessor healthcare ventures.

### Does Denniston Family Office participate in fund commitments or only direct deals?

The office commits to hedge funds, private equity funds, and venture funds while also executing direct co-investments in operating companies and real estate.

### What investment stages does Denniston Family Office typically target?

It targets early-stage and late-stage ventures alongside liquid and illiquid strategies across multiple asset classes.

### Does Denniston Family Office maintain philanthropic structures, and how are they separated?

It operates the Denniston Family Medical Research Foundation as a distinct philanthropic entity.

## Related profiles

- [Denarius Conseils et Gestion](https://altss.com/profile/denarius-conseils-et-gestion)
- [Department of the Future Ventures](https://altss.com/profile/department-of-the-future-ventures)

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Last updated: 2026-08-10T15:54:10.904Z

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