John Trettel

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John Trettel
Chair / Swanline

John Trettel — along with John Rubino, Sam Castelli and Charlie Bontempo — was a founding partner of United Construction (now UGL). He subsequently created Swanline Group in 1999.

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Knowledge Bank : Person Roles

1998
Chair
Swanline
Year started and most recent title

      Person Activity

      		 NEW ROLE: Chair, Swanline 01 Nov 2024

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