# TMG Family Office

TMG Family Office is a Multi Family Office based in Chicago, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** Chicago, United States
- **Region:** North America
- **Address:** Chicago, IL, United States
- **Founded:** 2019
- **Assets under management:** Undisclosed
- **Website:** tmgfo.com
- **LinkedIn:** https://www.linkedin.com/company/themathergroup

## Regulatory record

- **Reports private funds:** No

## About

TMG Family Office was formed in 2019 after The Mather Group expanded beyond Stewart Mather’s original fee-only wealth-management practice. Stewart Mather, who died in 2020, had built the parent RIA; the family office unit now sits alongside it and draws on in-house attorneys, CPAs and investment staff. The firm deploys capital into real estate and ESG strategies across North America. It structures holdings through direct positions and co-investments rather than broad fund commitments. No named portfolio companies appear in public materials. Additional offices operate in Dallas and San Francisco. Philanthropic vehicles tied to the Mather family include the Mather Family Foundation and the Charles H. and Beverly E. Shaw Foundation. Stewart Mather previously served on the board of A Better Chicago and held membership in the Chicago chapter of YPO.

## Sectors

- Real Estate
- ESG

## Offices

- Dallas, TX
- San Francisco, CA

## People

- Jennifer des Groseilliers — CEO
- Laura Sweeney — Managing Director and Head of TMG Family Office
- Stewart Mather — Founder
- Chris Yannella — Business Partner
- Colleen Mather — Family Member

## Questions

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

Laura Sweeney serves as Managing Director and Head of TMG Family Office. Jennifer des Groseilliers is CEO of the parent The Mather Group.

### How is TMG Family Office related to The Mather Group?

TMG Family Office was created in 2019 as an internal unit following expansion of The Mather Group’s wealth-management business started by Stewart Mather.

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

Public materials indicate a preference for direct real estate positions and co-investments rather than broad fund commitments.

### What philanthropic structures are attached to TMG Family Office?

The Mather Family Foundation and the Charles H. and Beverly E. Shaw Foundation are the named philanthropic vehicles linked to the family.

## Related profiles

- [TK Capital](https://altss.com/profile/tk-capital)
- [TNN Capital](https://altss.com/profile/tnn-capital)

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

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