Hennessy brings proven expertise in aviation technology transformation and operational efficiency to advance JSSI’s tech stack, client portals, and data-driven tools
Chicago, Illinois, United States, November 2025 – Jet Support Services, Inc. (JSSI) today announced the executive appointment of Molly Hennessy as Chief Product & Technology Officer, reinforcing the company’s continued investment in technology, AI, and data-driven solutions for the business aviation industry.
JSSI supports more than 5,000 assets through its hourly cost maintenance programs, overseeing thousands of maintenance events each year. Beyond maintenance programs, JSSI offers a comprehensive suite of digital solutions, including Traxxall for maintenance tracking; Conklin & de Decker for aircraft operating cost and performance comparisons; and PartsHub for streamlined online parts procurement. The company also recently introduced JSSI Aviation Capital, an asset-based financing product line.
In her new role, Hennessy will lead efforts to advance JSSI’s technology stack, enhance client portals, and optimize tools that improve efficiency and transparency for aircraft operators worldwide.
Hennessy joins JSSI after more than nine years at United Airlines, where she most recently served as Managing Director, Crew & Catering Technology. In this role, she spearheaded the transformation of crew scheduling tools from legacy mainframe systems to a modern technology stack—fostering collaboration between pilot and flight attendant organizations to deliver significant time and cost savings. Her proven ability to align technology strategy with operational excellence will be instrumental as JSSI accelerates innovation and invests in new digital solutions.
“I’m thrilled to join JSSI at such an exciting time,” said Molly Hennessy. “My priority will be ensuring our technology strategy delivers products that are not only cutting-edge but also deeply impactful for our customers and to set a new standard for performance, reliability, and value in the market. I look forward to building on JSSI’s strong foundation and help drive the next wave of innovation alongside this great team.”
“Molly is a dynamic leader and executive that has a track record of delivering superior results and positive change throughout her career. This role is critical to our future success and underscores our commitment to talent and technology as a cornerstone of JSSI’s future,” said Neil Book, Chairman, President, and CEO of JSSI.
About JSSI
Founded in 1989 and headquartered in Chicago, Jet Support Services, Inc. (JSSI) is the leading independent provider of hourly cost maintenance (HCM) programs for business aircraft engines, airframes, and auxiliary power units (APUs). JSSI’s HCM programs cover more than 300 makes and models of business aircraft.
The company’s portfolio of complementary business lines supports owners, operators, and maintenance providers across the entire aircraft ownership lifecycle — including parts procurement, maintenance tracking software, aircraft financing, and advisory services. With 6,500+ aircraft supported through maintenance programs and software platforms, JSSI leverages its scale and data-driven insights to deliver cost savings and tailored solutions. GTCR, Genstar Capital, and Blackstone serve as institutional investors supporting JSSI’s innovation and growth.
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