A Global Aviation Appraisal And Valuation Service Company


PROVIDING AIRCRAFT APPRAISAL SERVICES TO INDIVIDUALS AND COMPANIES WORLDWIDE FOR NEARLY 30 YEARS

The Official Valuation Partner And Appraisal Company For AOPA

VREF plays a crucial role in advising decision-makers within the aviation industry and is the Official Valuation Directory and Appraisal Company for the AOPA (Aircraft Owners and Pilots Association). VREF provides valuations, appraisals, and litigation consulting services to a worldwide client base of aviation professionals, including:

  • Aircraft owners
  • Banks
  • Financial institutions
  • Law firms
  • Leasing companies
  • Manufacturers
  • Operators
  • Suppliers
  • And More

VREF History

The Go-To Source For Aviation

VREF Aircraft Value Reference, Appraisal & Litigation Consulting Services was founded in 1994 as an aircraft valuation firm. It has since become the go-to source for aviation.

  • VREF Online: Real-time Software to Create Aircraft Valuations
  • VREF Appraisals: USPAP Compliant Appraisals
  • VREF Verified: On-Demand Valuation Reports, “The Carfax®” For Aircraft
  • VREF Expert Witness: Litigation And Expert Witness Services
  • VREF Consulting Services: Expert Advice for Your Aircraft Investment

With headquarters located in Des Moines, Iowa, VREF has expanded to Illinois, California, Idaho, Florida, Austria, Switzerland, Australia, and China.

Gain Insights From VREF’s Expert Team

Visit our blog for the latest insights, tips, and resources that will give you an edge as an aviation professional.

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Meet Our Experts

With over 200 years of combined experience, get to know the leadership team behind our aircraft appraisal and valuations services.

Jason Zilberbrand, ASA, CAA, ISA AM, AOA AM, MRAeSPresident & CTO

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Ken Dufour, ASA, MAM, ATP, CFICEO

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Richard “Dick” Hart, ASA, ISA AMChief Helicopter Appraiser

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Leo V. Heidemann, ASASenior Aircraft Appraiser

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Dr. Andreas G. Grassl, ASAVREF Senior Appraiser (EUROPE)

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Eric Puype, Esq., CPP, PCICyber Security Advisor

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Neil Schiller, ASAVREF Australia

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