About Us
Aircraft Maintenance Support & Financing Company

We are a team of passionate professionals, keeping customers flying through superior service, shaped by a culture of collaboration, innovation and integrity, striving for excellence in the aviation industry.

Our Story

For more than 35 years, Jet Support Services, Inc. (JSSI) has been the leading independent provider of maintenance support, advisory services, software, and financial tools to the business aviation industry. With 6,000+ aircraft supported by maintenance programs and software platforms, JSSI leverages this wealth of data, scale, and innovation to drive cost savings and provide custom solutions that align to the interests of each client, regardless of make or model. Learn more at jetsupport.com.

JSSI products and services include:

Maintenance Programs. Hourly Cost Maintenance Programs to stabilize maintenance budgets, maximize aircraft availability and enhance residual value.

Parts & Leasing. Experienced product line specialized team who leverages our All-OEM inventory and global vendor relationships and go beyond parts sourcing to find optimal customer solutions.

SoftwareTraxxall and Conklin & de Decker. Powerful data platforms to help you make more informed decisions, from choosing the right aircraft to tracking your maintenance, inventory, and MRO projects.

Advisory Services. Objective insights and independent technical advice from a global team of technical advisors and ASA-accredited appraisers for virtually any business jet, turboprop or helicopter.

Aviation Capital. Customized asset-based finance solutions for business aviation.

In 2020, JSSI was recognized as a US Best Managed Company.

Growth & Innovation Milestones

Our Leadership

Neil Book

Position: Chairman & CEO

As Chairman and Chief Executive Officer, Neil provides leadership and direction to the entire organization.

Prior to joining JSSI in 2012, Neil served as Vice President of Mobility for Juniper Networks, directing its mobile security business unit. His role at Juniper began in 2010, in connection with their acquisition of SMobile Systems, where he had served as President and Chief Executive Officer. Neil began his career at AT&T where he held various management positions. Neil is a graduate of the University of Delaware, class of 1999.

Neil Book

Chairman & CEO

Tim Elberfeld

Position: Chief Financial Officer

As Chief Financial Officer, Tim Elberfeld is responsible for all aspects of Finance & Accounting at JSSI. Additionally, Tim oversees the Information Technology organization.

Prior to joining JSSI, Tim served in a range of progressive roles at TransUnion, a global information and financial services company publicly listed on the New York Stock Exchange. While at TransUnion, his roles included Chief Accounting Officer as well as Chief Financial Officer for the Africa Region in Johannesburg, South Africa.

Tim began his career at PricewaterhouseCoopers (PwC), where he served clients in the Transaction Services group. At PwC, he led cross-border engagements for clients in the execution of complex acquisitions, divestitures and carve-outs. During his time at PwC, Tim completed a multi-year secondment in Zurich, Switzerland, where he supported clients on both inbound and outbound deals across Europe. Tim received an undergraduate degree in accounting from Anderson University and is a Certified Public Accountant (inactive).

Tim Elberfeld

Chief Financial Officer

Francisco Zozaya M.

Position: Chief Revenue Officer

As Chief Revenue Officer, Francisco provides leadership to the global business development organization.

Prior to joining JSSI, Francisco served as Director of Aircraft Sales & Acquisitions at Aerolineas Ejecutivas, where he managed the sales organization achieving 80% market share over several consecutive years. Francisco facilitated several key industry alliances for Latin America’s largest business aviation company and has established an extensive network with the global broker community, financial institutions, OEMs and MROs.

Francisco graduated from Universidad Iberoamericana in Mexico City as an industrial engineer.

Francisco Zozaya M.

Chief Revenue Officer

Ben Hockenberg

Position: Chief Operating Officer

As Chief Operating Officer of JSSI, Ben Hockenberg leads JSSI Parts & Leasing, the procurement arm of the company, as well as the technical services and operations of JSSI maintenance software. Additionally, Ben has responsibility for the company’s maintenance event and insurance claims management service offerings.

In his role prior to joining JSSI Parts & Leasing, Ben was focused on investing in the aerospace sector. He has worked in investment banking, private equity, and credit investing and Deutsche Bank, The Pritzker Organization, Venor Capital and Greenbriar Asset Management. He holds an MBA from Kellogg School of Management and a bachelor’s degree in business administration from the University of Michigan.

Ben Hockenberg

Chief Operating Officer

Serdar Yorgancigil

Position: Chief Information Officer

As Chief Information Officer, Serdar Yorgancigil is responsible for all information and digital technology initiatives at JSSI.

Prior to joining JSSI, Serdar spent 15 years at AAR, a provider of global aviation services to the commercial and governmental aviation sectors. Serdar held a variety of progressive technology roles at AAR, including Head of Digital Enablement, where he led application development, data management and integration teams. He is a graduate of Istanbul University with a bachelor of science degree in computer engineering. Serdar is a member of the Chicago Chief Data Officers (CDO) governing body and received an executive certificate in management leadership from the MIT Sloan School of Management.

Serdar Yorgancigil

Chief Information Officer

Chris Miller

Position: Managing Partner, JSSI Aviation Capital

As Managing Partner of JSSI Aviation Capital, Chris Miller will oversee and lead the team in growing JSSI Aviation Capital into a global market leader in customized asset-based financing alternatives in the business jet space.

Chris was the founder and CEO of Shearwater Global Capital which was a private finance company offering asset-based financing for aviation assets across the globe. Prior to Shearwater he was the Managing Director of Guggenheim Partners Business Aircraft Investment (BAI) Group. The BAI Group provided capital solutions to the Business Aviation Industry; specifically, asset-based lending on medium to large sized business aircraft.

Before entering the business world, Chris served in the United States Marine Corps, as an F/A-18 pilot, Aircraft Maintenance Officer and Aviation Safety Officer. Chris is a graduate of the U.S. Navy & Marine Corps School of Aviation Safety and currently holds a commercial pilot rating. He is an accredited “Senior Aircraft Appraiser” with the American Society of Appraisers (ASA) and the former President of the National Aircraft Finance Association (NAFA). Chris received a BA from Denison University and an MBA from Columbia University.

Chris Miller

Managing Partner, JSSI Aviation Capital

Alexis Javkin

Position: Executive Vice President, Strategic Maintenance & Supplier Management

Alexis Javkin joined JSSI in 2024 as Executive Vice President, Strategic Maintenance & Supplier Management. In this role, Alexis is responsible for JSSI’s global technical support organization, providing proactive event management, customer advocacy, and strengthening JSSI’s relationships with MRO’s and service providers across the industry.

Prior to joining JSSI, Alexis served dual roles for Aerolíneas Ejecutivas (ALE) as CEO of ALE Service Center and Group Vice President, and before that he held various key roles at Unilever. An industrial engineer by trade, he earned his undergraduate degree from Tecnologico de Monterrey, followed by an MBA from IPADE business school.

Alexis Javkin

Executive Vice President, Strategic Maintenance & Supplier Management

Associations

Corporate Citizenship

We are proud to be good neighbors and participate in events and programs that support our company strategy around the world.

The Global FoodBanking Network​

The Global FoodBanking Network’s (GFN) mission is to nourish the world’s hungry through uniting and advancing food banks.

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Feeding America

Feeding America is the nation’s largest domestic hunger-relief organization, supporting food banks, pantries, and meal programs with food, funds, and advocacy.

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West Michigan Aviation Academy Foundation​

With a curriculum rich in aviation, STEAM, and robotics, WMAA provides a unique opportunity for students to focus on high-growth employment fields during their education.

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Autism Speaks​

Autism Speaks is dedicated to promoting solutions, across the spectrum and throughout the life span, for the needs of individuals with autism and their families.

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Ronald McDonald House Charities​

Ronald McDonald House Charities of Central Ohio creates, finds and supports programs that directly improve the health and well-being of children and families in the region.

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Pat Tillman Foundation

The Pat Tillman Foundation provides scholarships, professional development opportunities and a network to empower military service members, veterans and spouses.

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Making Dreams Soar

JSSI supported Shaesta Waiz’s record-breaking solo flight around the world with a mission to encourage women to pursue STEM and aviation-related degrees.

 

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Marine Corps Scholarship Foundation

Marine Corps Scholarship Foundation provides academic scholarships to children of United States Marines and Navy Corpsmen.

 

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Promoting STEM Education Through Aviation​

The annual GAMA Build A Plane Aviation Design Challenge promotes science, technology, engineering, and math knowledge among high-school students.

 

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Providing Lifelong Benefits to Students

It Takes a Village Chicago (ITAV) provides physical education facilities, resources and tools to students at inner city schools.

 

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The Robert John Kleros Memorial Endowed Scholarship

This annual program was established by JSSI to benefit students pursuing careers in aircraft maintenance at Embry-Riddle Aeronautical University. Each recipient is selected on the merit of their passion for aviation, leadership qualities, and sense of determination. Find out more about this year’s recipient.

JSSI’s Hourly Cost Maintenance (HCM) Programs bring peace of mind to owners and operators of virtually any business aircraft. Our programs are designed to stabilize your maintenance budget, maximize availability, and enhance the residual value of your aircraft – offering flexible coverage options:

Engine I APU I Airframe I Tip-to-Tail®