SULLIVAN STREET PARTNERS

Stephen Costley January 08, 2026

SULLIVAN STREET PARTNERS completed acquisition of Senior's Aerostructures business for enterprise value of £200m (SPNWS; July 25) and rebranded business (seven global facilities) as ZENIX AEROSPACE, based in Birmingham, UK.

Stephen Costley

Steve Costley is responsible for the overall production SpeedNews. Steve has over 30 years of experience with SpeedNews, now part of the Aviation Week Network. He joined the company in August 1989 as an Associate Editor and was named Managing Editor in 1994. He was also named Vice President and Chief Operating Officer of SpeedNews, Inc., in the late 1990s, and held those titles until Prism Business Media acquired the company from Gil Speed in 2006.

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