# Roger Byrom

> Roger Byrom is the former CEO of Addison, a New York creative agency acquired by Sia in 2022, and a longtime historic-preservation advocate. A former chair of Manhattan Community Board 1’s Landmarks Committee, he now operates Headquarters Farm in New Jersey and serves as president of the Delaware Township Historical Society. He was a 2026 Alexander Hamilton Immigrant Achievement Award honoree.

- **Role:** President of the Delaware Township Historical Society; owner of Headquarters Farm; former CEO of Addison
- **Organizations:** Addison / Sia/Addison, SiaXperience, Manhattan Community Board 1, Delaware Township Historical Society, Headquarters Farm, Historic Districts Council, Hunterdon Land Trust, Accenture, Friends of the Earth
- **Education:** London School of Economics and Political Science
- **Known for:** Led Addison’s U.S. business and purchased it with partners in 1994., Helped transition Addison to Sia ownership in 2022., Served for approximately two decades as chair of Manhattan Community Board 1’s Landmarks Committee.

## Career timeline

- **1977–1980** — Attended the London School of Economics and Political Science.
- **Early career** — Began at Accenture; subsequently joined Steve Smith and became an Addison board member at age 29.
- **Late 1980s** — Moved to New York to lead Addison’s U.S. business.
- **1994** — Purchased Addison’s U.S. business with partners.
- **2007** — Documented as chair of Community Board 1’s Landmarks Committee in New York City meeting minutes.
- **2011** — Listed as a Hunterdon Land Trust vice president; advocated careful removal of the Borders sign at 100 Broadway.
- **2012** — Addison chose offices at 48 Wall Street; installed streamside conservation measures at Headquarters Farm.
- **2014** — Asked for a master plan for the Seaport redevelopment rather than separate consideration of individual components.
- **2017** — Headquarters Farm achieved River-Friendly certification; completed additional fencing of riparian areas.
- **2018** — Participated in the Downtown Alliance’s Stock Exchange district public-realm study.
- **2022** — Sia acquired Addison on July 1; Byrom joined SiaXperience’s global management team.
- **2026** — Recognized with the Alexander Hamilton Immigrant Achievement Award; identified by its organizer as former Addison CEO.

## Achievements

- Led Addison’s U.S. business and purchased it with partners in 1994.
- Helped transition Addison to Sia ownership in 2022.
- Served for approximately two decades as chair of Manhattan Community Board 1’s Landmarks Committee.
- Received the 2026 Alexander Hamilton Immigrant Achievement Award.
- Operates Headquarters Farm, River-Friendly certified in 2017.

## Latest updates

- **2026-10** — Scheduled to lead The Loyalist’s Perspective, an interactive history discussion at Hunterdon County Library, on October 25, 2026.
- **2026-06** — Identified in Gold’s Dragoons photographs from the June 14 Flemington 250th celebration parade.
- **2026-03** — Received the Alexander Hamilton Immigrant Achievement Award; the ceremony program describes him as a farmer and president of his township historical society.

## Links

- Website: https://addison.com
- LinkedIn: https://www.linkedin.com/in/rogerbyrom

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Profile page: https://yespress.io/roger-byrom
Published by YesPress — https://yespress.io
Last updated: 2026-10-06