Ms. Costello served as Chief Financial Officer of C&D Technologies, Inc., a global leader in energy storage solutions and services for the telecommunications, utility, uninterruptible power supply, cable, broadband and renewable energy markets, from 2016 to 2020. She served as Chief Financial Officer (from 2008 to 2016) and Vice President, Controller and Chief Accounting Officer (from 2002 to 2008) of Sequa Corporation, which, through its subsidiary Chromalloy, is a global technology company and a leading solutions provider for aircraft engines and gas turbines. From 1995 to 2002, Ms. Costello held the role of Senior Manager with Arthur Andersen, LLP.
From 2019 until its acquisition in 2022 by Mativ, Ms. Costello was a member of the Board of Directors of Neenah, Inc. (formerly, NYSE: NP), a global manufacturer of specialty materials, including filtration media, specialty coatings and imaging and packaging solutions, serving as Chair of the Audit Committee and as a member of the Compensation Committee. Ms. Costello was a member of the Board of Directors of the towing and trailering equipment producer, Horizon Global Corporation (formerly, NASDAQ: HZN), from 2021 until its acquisition by First Brands Group in 2023, serving as a member of the Audit Committee.