# OnDean

OnDean is a Single Family Office based in Chicago, United States.

## Overview

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

## Regulatory record

- **Reports private funds:** No

## About

OnDean is a family investment office led by Andrew Sieja, based in Delaware. OnDean has made five investments to date. Their most recent investment was in Justice Bid, a private equity deal made on April 14, 2025.

## Sectors

- Real Estate
- Healthcare Services
- Consumer Goods
- Education

## People

- Ronald J. Gidwitz — Principal

## Related profiles

- [Fulcrum Collective](https://altss.com/profile/fulcrum-collective)
- [Integracare](https://altss.com/profile/integracare)

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

Canonical page: https://altss.com/profile/ondean

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