Unical Leadership
Led by Chief Executive Officer Sharon Green, Unical's leadership comprises seasoned professionals with extensive experience in aviation operations, sales, finance, IT, asset management, and MRO. Our leaders bring decades of industry expertise, driving innovation, growth, and operational excellence across diverse aviation sectors. Together, they lead Unical with a commitment to delivering top-notch solutions and services to our customers worldwide.
Sharon Green
Chief Executive Officer
Sharon Green
Chief Executive Officer
Sharon draws on her more than 35 years of aviation experience including leadership roles in operations, finance and management.
Additionally, she commands an extensive understanding of the aviation industry with prior C-level roles at The Memphis Group and as the Chief Executive Officer for GECAS’ Materials, a premier distributor of airframe and engine components.
Caryn Nightengale
Chief Financial Officer
Caryn Nightengale
Chief Financial Officer
Caryn Nightengale is an experienced executive and public company director who brings strategic focus, governance excellence and strength in her ability to connect people and ideas across disciplines. She is a seasoned global finance leader with over 25 years of experience as a strategic advisor and operator leading companies through complex organizational transformation with financial prudence. Caryn’s expertise spans across industries and has accumulated from working in Fortune 500 companies, in regulatory roles, and in private companies in the startup, launch and growth phases. Caryn’s career reflects her ability to cultivate innovation, operationalize strategies and scale organizations.
David Vollrath II
Chief Operating Officer
David Vollrath II
Chief Operating Officer
David is a determined leader with an extensive 34-year career in the aviation industry. Most recently, Mr. Vollrath served as the President and CEO for Safran Power USA, LLC where he was responsible for three operational sites and 800 team members, which included OE and MRO operations. Prior to Safran Mr. Vollrath held roles as Business Unit Director, Parker Aerospace; Director of Customer Support and Aftermarket Services, DRS Training and Control Systems; Senior Manager, Aftermarket Services and Customer Support for Rolls-Royce and Senior Manager, Technical Operations and Engine Management for American Trans Air. David holds a Bachelor of Science in Professional Aeronautics from Embry-Riddle Aeronautical University and holds a degree in Aviation Maintenance Technology from Vincennes University and an active A&P license.
Stefan Haynes
Chief Commercial Officer
Stefan Haynes
Chief Commercial Officer
Stefan has more than 25 years of aviation sales leadership experience. Most recently he served for 7 years as Chief Commercial Officer for GECAS’ Materials. Before GECAS, Stefan held senior sales leadership roles with AerSale, GA Telesis and VAS Aero Services.
Jennifer Torlone
Chief Information Officer
Jennifer Torlone
Chief Information Officer
Jennifer has more than 30 years of information technology experience including more than 20 years of experience in the industrial manufacturing space. She has held various leadership roles at Fortune 500, publicly traded, and privately held companies with global reaches.
She has successfully positioned companies to become a leader in technology, modernizing internal and external applications, architectures, and infrastructures.
David Dicken
Executive VP of Asset Management
David Dicken
Executive VP of Asset Management
Stephanie Schwartz
SVP, Human Resources
Stephanie Schwartz
SVP, Human Resources
Stephanie is a Human Resources Executive with 30 years of experience in a variety of sectors including the aerospace manufacturing space. She has held leadership roles at publicly traded, privately held, venture capital and private equity backed organizations.
Her background includes expertise in Leadership Development and increasing capabilities of Human Resources Departments to better support leaders resulting in increased focus successful business operations.
Conrad Vandersluis
SVP, Strategic Programs & Acquisitions
Conrad Vandersluis
SVP, Strategic Programs & Acquisitions
Conrad has over 35 years of experience in the aviation industry including roles in commercial and asset management at AJW Group and Skybrakes and sales at Flightspares Ltd. His background includes successfully optimizing inventories, streamlining operational costs and strategic planning and coordination of aircraft parts to support customer needs and market demand.
Philippe Leveque
SVP of Sales Americas
Philippe Leveque
SVP of Sales Americas
Philippe is a well seasoned Airframe Professional with over 37 years of experience. His experience was built from The French Air Force Technical Academy as an Airframe/Hydraulic mechanic (three years of service). He started his business career with Hutchinson Aerospace as field Sales Manager up to the Aerospace Sales Director for 13 years. He then joined Parker Hannifin Corporation Stratoflex Division in Fort Worth Tx for which he held multiple positions up to the Airframe Business team leader in Europe and in the USA for 17 years. He moved from Texas to Florida to join Safran Electrical & Power as S&M/Programs Director for the last 7 years. Philippe holds an Executive MBA from The ESCP University Paris, has an active PMP certification from PMI and a Contract Manager Expert certification from World Commerce & Contracting Association.
Pete Allwood
SVP, Sales EMEA
Pete Allwood
SVP, Sales EMEA
Rong Wang
SVP, Sales Asia Pacific
Rong Wang
SVP, Sales Asia Pacific
Rong has over 28 years of experience in the aviation industry, specializing in maintenance, material support, quality and lean management, including key roles in these functions at Ameco-Beijing. Since joining Unical in 2013, Rong has been instrumental in driving significant sales growth, including 6 years leading overall sales operations. Currently Rong leads Unical's sales and business development for Asia Pacific region.
Rong holds a Master's degree from the University of New South Wales and a Bachelor's degree from Shanghai Tongji University.
Darrell Drake
SVP, Unical Engines
Darrell Drake
SVP, Unical Engines
Nick Gimbel
SVP & General Manager, Unical 145
Nick Gimbel
SVP & General Manager, Unical 145
Nick has over 15 years of experience in the 145/MRO aviation industry, developing high performing MRO operations through lean initiatives, operational excellence, and a focus on process efficiencies. Nick has previously held senior leadership roles with GA Telesis, Velocity Aerospace, and AllClear Repair Services. He received his Master of Science in Engineering Management at Florida International University and received his Six Sigma Green Belt certification at Villanova University.
Jason Richards
General Manager, Unical MRO
Jason Richards
General Manager, Unical MRO
Charles Holland
SVP of Global Controller & Treasury
Charles Holland
SVP of Global Controller & Treasury
Join the Unical team
Visit our Careers page to learn more about working at Unical and to search for open positions
Certifications and Quality Standards
Over the years, Unical has maintained high quality standards, which has made it possible to earn many certifications that demonstrate our commitment to customers and the industry.
Office Locations + Phone Numbers
Phone Numbers
Sales: 1.909.348.1700
AOG: 1.626.337.2108
Unical & Unical MRO
15132 W Camelback Road
Glendale, AZ 85340 USA
Unical UK Office
4 Dorking Office Park,
Station Road, RH4 1HJ, UK
Unical Engines
3350 SW 148th Ave. Ste 110
Miramar, FL 33027 USA
Contact Us
We make it convenient to get in touch with us any time of day. Whether you’re looking to book hangar space for storage or you need help finding a unique part, we’ll be there to assist you along the way.