Adam Nemenyi

As Co-Executive Chairman and Chief Strategy Officer of Sentry Aerospares, Adam is responsible for long-term strategic initiatives, including geographic and product line expansion 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 25 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.

Email: adam@sentry.aero

Martin Coleman

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.

Email: martin@sentry.aero 

Gabor Kiss

As Commercial Director, Gabor is responsible for the performance of Sentry Aerospares’ commercial operations across all regions. With almost 20 years of experience in the aviation aftermarket, Gabor brings extensive industry knowledge and has built strong relationships with airlines, MROs and industry partners worldwide. He is truly passionate and dedicated to ensuring customers receive industry-leading support around the clock.

Gabor is an avid Diosgyor FC and Bayern Munich supporter. He is a qualified Special Constable and enjoys supporting initiatives within the local community.

Email: gabor@sentry.aero

Conrad Vandersluis

Conrad joined Sentry Aerospares in 2025 as Vice President of Asset Management. He oversees the strategic management of the company’s global asset portfolio, working closely with the commercial and MRO teams to maximise asset performance and identify opportunities for growth.

With more than 30 years of aviation industry experience, Conrad has held senior leadership roles with some of the sector’s most recognised organisations. His expertise spans asset management, strategic acquisitions, aftermarket operations and global customer relationships.

Known throughout the industry for his technical expertise and commercial insight, Conrad is passionate about developing high-performing teams, building strong partnerships and creating value through strategic asset investment and management.

Boris Wolstenholme

Christopher DiSimone

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.

Having joined Sentry in 2013 as CFO, Chris quickly transitioned into a purchasing role to aid in the growth of Sentry’s product lines, along with upgrading both the business software and data analytics used.  Prior to Sentry, Chris worked in the defense industry, developing hardware and software for complex systems. Chris has earned BS degrees in both Electrical Engineering and Finance, along with an MS in Electrical Engineering, all from Boston University.

Chris enjoys spending time with his family, including his two young children.

Email: chris@sentry.aero

Tony Sr DiSimone

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.

Email: tony@sentry.aero

Tony Jr DiSimone

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 Jr enjoys being part of the aviation family, attending shows worldwide, and building a network of both colleagues and lifelong friends.

Email: tonyjr@sentry.aero

Franco Auriti

Serving as Sr. Vice President of Sentry Aerospares, Franco brings over 40 years of aviation experience, spanning MRO, marketing and business development activities, across both airline and OEM customers.

Franco is also responsible for leading our new Dallas facility, opened in 2024, while continuing to work with airline and OEM customers providing contract solutions and oversight.

Prior to joining Sentry Aerospares, Franco has previously held the position of President of TSS Group, operating eight repair facilities, then later Texas Pneumatic Systems/ Turbine Fuel Systems repair facilities, maintaining all types of rotable components. Franco enjoys golf and family times together with his grandkids.

Email: franco@sentry.aero

Rob Wills

Rob brings more than three decades of aviation and engineering experience to Sentry Aerospares’ Canadian division. He began his career as a civil engineer before becoming a pilot in 1991, flying across the Canadian Shield, where his engineering background proved invaluable in developing a hands-on understanding of aircraft systems (and even, on one occasion, making his own mid-flight repair). Coupled with a career in Management at FedEx Corp, and driven by a passion for aviation and a desire to put his experience to work, Rob founded AirStart in 2000, specializing in aftermarket support and building a reputation for friendly, reliable customer service and deep product expertise.

Following AirStart’s acquisition by Sentry Aerospares in 2026, Rob joined the Sentry team, bringing his extensive experience, technical expertise and customer-first mindset to Sentry’s worldwide operations.

Email: Rwills@sentry.aero

Sam Cupelli

Sam brings more than 40 years of aviation experience to Sentry Aerospares’ Canadian division, where his focus is building relationships with airlines, MROs and industry partners worldwide, negotiating deals for major assets, including aircraft, engines and APUs. Having worked in aviation since 1986 and in the aftermarket business since 1999, Sam’s global network spans markets from Canada to Morocco to Papua New Guinea and all points in between. For Sam, the best part of the job is the connections: meeting new contacts at industry events, building genuine relationships and bringing people, parts and opportunities together.

Email: samc@sentry.aero

Rebecca Muenker

Known around the office as the sales team’s “air traffic controller,” Rebecca keeps parts moving. Having worked with us since 2019, she oversees the team that quotes, orders and purchases, helping ensure urgent requests are handled quickly. The first person online every morning, Rebecca makes overnight AOGs her first priority — and prides herself on her rapid response.

Aviation runs in Rebecca’s family, but the relationships are what keep her connected to the industry. A self-described people person, Rebecca genuinely gets to know the person on the other end of the phone or email, and loves taking those connections offline at conferences around the globe. Say “hi” if you see her! She’ll be the person who remembers your name, asks about your interests and is always ready to talk shop.

Email: rebecca@sentry.aero

Michael Smolcic

Mike brings more than 20 years of experience with AirStart to the Sentry Aerospares team, with extensive expertise in international sales, business development, consignments and inventory solutions.

Throughout his career, Michael has built strong relationships across the global aviation aftermarket, working closely with airline, MRO and industry partners to understand their requirements and deliver responsive, reliable solutions, spanning from regional to Airbus and Boeing airframes.

Based in Toronto, Michael plays an important role in supporting Sentry’s international sales efforts and expanding the company’s global customer relationships. His industry knowledge, commercial experience and relationship-driven approach contribute to Sentry’s continued growth and commitment to exceptional customer support.

Email: Mikes@sentry.aero