AEROSPARES 2000 - Key Persons


Adam Nemenyi - CEO

Job Titles:
  • Group Chief Executive Officer
  • Member of the Senior Leadership Team
  • Group CEO of Sentry Aerospares
As Group CEO of Sentry Aerospares, Adam is responsible for leading the strategic direction and successful growth of the group.Having originally founded Aerospares 2000, Adam grew the company from a start-up business to a well-respected USM supplier with a global customer base. With over 22 years industry experience, Adam was instrumental in the transformational merger between Aerospares 2000 and Sentry Aerospace in July 2022. Under his leadership, Sentry Aerospares has continued growing from strength to strength and firmly established itself a global leader in the supply of high value aircraft components. Adam has a life-long passion for all things aviation related and is a qualified private pilot. He earned a BSc. in Business from Manchester Metropolitan University. He is also an alumni of Cranfield University School of Management where he frequently serves as a visiting lecturer covering entrepreneurship and airline supply chain management. He is also a Fellow of the Royal Aeronautical Society. "When Acorn Growth Companies and Adam Nemenyi first presented the idea of a merger between Sentry Aerospace and Aerospares 2000, my two sons and I immediately saw the potential and benefits it would create for both companies. We have far surpassed all our expectations after one full year of operation. We are now a dominant player in the aviation aftermarket worldwide. It is a very exciting time for all of us. I started in the aviation business in 1964 and this merger has rejuvenated me, even after all those years. As Executive Chairman, I have the pleasure of watching Adam Nemenyi, Tony jr. and Chris DiSimone take Sentry Aerospares to new heights and propel us into the future."

Aviv Tzur

Aviv Tzur joins Board of DirectorsWe are delighted to announce that Aviv Tzur has been appointed to Sentry Aerospares Board of Directors.Adam Nemenyi, SAS Group CEO remarked: "We are absolutely delighted with Aviv's appointment. He brings an incredible added dimension...

Boris Wolstenholme - CEO

Job Titles:
  • Chief Executive Officer
  • Member of the Senior UK Team
  • Appointed CEO of Sentry Aerospares' European Division
We are pleased to announce the appointment of Boris Wolstenholme as CEO of Sentry Aerospares European division. Boris joined Sentry Aerospares in April 2023. With nearly thirty years experience in both commercial and business aviation. Boris has previously held leadership roles in two of the UK's largest aviation businesses providing a diverse range of aviation services. Boris's core capabilities relate to the disciplines of spares availability, supply chain management and MRO. Boris has a passion for developing people and organisations and was voted IOD young Director of the Year in 2012.

Christopher DiSimone

Job Titles:
  • Member of the Senior US Team
  • Co - President of the Sentry Aerospares US
  • President, Americas
Chris serves as Co-President of the Sentry Aerospares US division, primarily focused on asset acquisition, finance and operations. He works closely with both the US and UK teams, as we strive to continually improve our processes and services to support our entire worldwide customer base.

Gabor Kiss

Job Titles:
  • European Sales Director
  • Member of the Senior UK Team
As European Sales Director, Gabor manages a successful commercial team and is responsible for European sales. He is truly passionate and dedicated to ensuring the company provides an industry leading, 24/7 customer service. With almost 20 years of experience in rotable spare-part sales, Gabor has a deep industry knowledge and extensive relations throughout the globe. Gabor is an avid Diosgyor FC and Bayern Munich supporter. He is a qualified Special Constable and enjoys supporting initiatives in the local community.

Martin Coleman - CFO

Job Titles:
  • Chief Financial Officer
  • Member of the Senior UK Team
  • CFO at Sentry Aerospares
As the CFO at Sentry Aerospares, Martin is responsible for all of the company's financial functions, including accounting, audit and treasury. His career spans over 25 years in financial management and strategic planning for high growth businesses in aviation, manufacturing and technology industries. Prior to Sentry Aerospares, Martin spent 5 years with an innovative high growth VC backed technology company and before that 18 years in the US as Finance Director for a number of small-medium sized companies with PE and Private ownership. Outside of work Martin enjoys all things football including coaching various youth teams over the last 15 years. Martin is an Associate Chartered Management Accountant (ACMA), received his BSc from Hallam University and his MBA from Heriot Watt University.

Rick Nagel

Job Titles:
  • Managing Partner of Acorn
Rick Nagel, Managing Partner of Acorn noted, "Following the July 2022 merger between Aerospares 2000 and Sentry Aerospace, SAS has experienced an acceleration in growth that is a testament to the Company's unique position in the market, flexible capital structure, and significant inventory of AOG critical spare parts. As we begin our first full year of combined operations, and SAS continues to perform ahead of plan, we realize the importance of complementing our investments in high quality inventory with the best human capital in the market. As such, we are thrilled to have an accomplished aviation executive like Boris join what we believe is the most exciting growth platform in the aerospace market."

Tony DiSimone Sr - Chairman

Job Titles:
  • Executive Chairman

Tony Jr DiSimone

Job Titles:
  • Member of the Senior US Team
  • Co - President of the Sentry Aerospares US
  • President, Americas
Tony Jr. serves as Co-President of the Sentry Aerospares US division, primarily focusing on sales, repair and operations. Tony Jr joined Sentry in 2005 and became an expert in multiple product lines, including evacuation slides, rafts, reservoirs and vests, along with rotable product line such as CDUs. Tony enjoys working closely with all teams at the ground level to ensure Sentry delivers whenever needed. Prior to joining Sentry, Tony Jr worked for 12+ years in the telecommunications industry as an engineering lead and division manager. He has a BS in Electrical Engineering from Rutgers University.

Tony Sr DiSimone - Chairman

Job Titles:
  • Executive Chairman
  • Member of the Senior Leadership Team
  • Founder of Sentry Aerospace Corporation
As the founder of Sentry Aerospace Corporation in 1975, Tony Sr. now serves as our Executive Chairman. Tony provides both leadership and experience, gained from over 50 years in the aviation industry. He brings the same passion and style to the office today as he did on his first day. Whether its attending industry shows or scrolling on LinkedIn, it is hard to miss Tony and the energy he brings to the business. Nothing gives him greater pleasure than seeing Sentry's growth over the years and being able to share that experience with his children, on a daily basis. When not in the office, Tony currently enjoys golfing as much as possible, as he continues his quest to shoot his age.