# Richard L. Postma

> Richard L. Postma is an American entrepreneur and former lawyer who co-founded and led US Signal until its 2023 sale. His career also includes chairing Macatawa Bank Corporation from 2009 to 2024, developing Arcadia Bluffs, and supporting the University of Michigan with his wife, Ruth.

- **Role:** Chairman at Postma Corporation (last confirmed in Wintrust’s 2025 proxy statement)
- **Organizations:** US Signal, US Xchange, Macatawa Bank Corporation, Wintrust Financial Corporation, Arcadia Bluffs, Postma Corporation, TurnKey Network Solutions, R.T. London, AboveNet, Choice One Communications, Miller, Johnson, Snell and Cummiskey
- **Nationality:** American
- **Education:** Calvin College (now Calvin University), JD, University of Michigan Law School
- **Known for:** Co-founded US Signal and led it before its sale to Igneo Infrastructure Partners in February 2023., Chaired Macatawa Bank Corporation from 2009 through its 2024 acquisition by Wintrust., Developed and owns Arcadia Bluffs.

## Career timeline

- **1976** — Earned a JD from the University of Michigan.
- **1999** — Arcadia Bluffs opened.
- **2001** — US Signal’s company-stated founding year; Postma was a co-founder and its CEO.
- **2003** — Joined AboveNet’s board in September.
- **2009** — Became Macatawa Bank Corporation chairman in November.
- **2011** — Invested in Macatawa’s subordinated debt and common shares during its capital-raising effort.
- **2014** — University of Michigan approved the Postma family clubhouse naming after Richard and Ruth’s $4 million athletics gift.
- **2017** — Richard L. Postma Family Clubhouse dedicated on May 20.
- **2023** — Left US Signal in February after its acquisition by Igneo.
- **2024** — Joined Wintrust’s board on August 1 following the Macatawa acquisition.
- **2025** — Resigned from Wintrust’s board effective June 11.

## Achievements

- Co-founded US Signal and led it before its sale to Igneo Infrastructure Partners in February 2023.
- Chaired Macatawa Bank Corporation from 2009 through its 2024 acquisition by Wintrust.
- Developed and owns Arcadia Bluffs.
- Richard and Ruth Postma contributed $4 million to University of Michigan athletics capital projects, recognized through the family clubhouse naming.

## Latest updates

- **2025-06** — Resigned from Wintrust’s board on June 11, 2025.
- **2025-04** — Wintrust’s proxy listed chairmanships at TurnKey Network Solutions, R.T. London, Arcadia Bluffs, and Postma Corporation.
- **2024-08** — Joined Wintrust’s board as its Macatawa acquisition closed.

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Profile page: https://yespress.io/richard-postma
Published by YesPress — https://yespress.io
Last updated: 2026-10-26