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John Keller

Building Products

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John retired as the Chief Operating Officer of The RiteScreen Company, LLC in 2023, after successfully leading RiteScreen’s operational transformation since 2015. Before joining RiteScreen, John was the Vice President of Operations & Supply Chain for Silver Line Building Products, where he was responsible for 4 plants and nearly 3,500 employees. He worked with Silver Line for 11 years in various executive positions. John’s aggressive efforts to improve operating efficiencies and reduce costs helped Silver Line maintain profitability every year during the recent building products industry downturn. John led Silver Line’s lean manufacturing transformation, creating a culture of continuous improvement throughout the organization.


Prior to Silver Line, John was a Divisional President at Corporate Express, which was later acquired by Staples. Early in his career, John spent 5 years as a management consultant with RCG International, leading consulting assignments in the logistics, operations and supply chain sectors.


John has two undergraduate degrees from Rutgers University—a Bachelor of Science degree in Industrial Engineering and a Bachelor of Arts in Economics/Finance—and completed graduate studies at Rutgers Graduate School of Management.

Operating Partners

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Bob Baker

Medical Products

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David Campos

Industrials, Building Products, Consumer Products

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John Keller

Building Products

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Ahmed Metwalli

Aerospace & Defense

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Graham Sullivan

Aerospace & Defense and Industrials

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Chris Yankowich

Building Products

Investment Professionals

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Tom Burchill

Managing Partner

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Mark Kammert

Partner

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Nico Gavrielidis

Vice President

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Jacqueline Heath

Vice President

Administrative/Operations

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Nina Milo

Executive Administrative Assistant

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Matthew Trinkaus

Chief Financial Officer, Four Pines Professional

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Gabriel Castellanos

Chief Technology Officer

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