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Executive Mosaic CEO Jim Garrettson presented Tom Watson, CEO of Serco Groupâs North American business, with his 2024 Wash100 Award during a recent visit to Sercoâs offices. Vote for Tom Watson as your favorite GovCon executive at Wash100.com! The 2024 Wash100 popular vote competition runs until April 30, and the top 10 will be announced in ...