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Rare, Low Production and Unique Porsches


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Our Certificate of Authentication is a professional recording of authenticity, originality and completeness using in person inspection and client provided information. Certification is essential for collectors, purveyors, sellers and buyers of rare, low production and unique Porsches. It is an essential marketing tool for sellers to command premium values. And it sets the value proposition for buyers.

Click Here to View a Sample Certificate of Authentication


We can supply a Certificate of Authentication* for the following Porsche models:

  • 959/S
  • 964 C4 Leichtbau
  • 964 3.3 Turbo S2
  • 964 3.3 Turbo S Leichtbau
  • 964 3.6RS
  • 964 3.8RS
  • 964 3.6 Turbo S
  • GT1
  • 993 RS/RSR
  • 993 GT2/EVO
  • 980 Carrera GT (North America)
  • 997 GT3/RS (North America)
  • 997 GT2/RS (North America)
  • 918 Spyder (North America)

Our intimate understanding of each vehicle’s model specification, build sheet and individuality allows us to authenticate an example – and to identify inauthentic vehicles. Our global team has studied more individual examples of the vehicles we cover than any other available resource and they have full access to our vast proprietary historical archive containing detailed data on over 15,000 Porsche VIN’s.

* Authentication details vary by model.