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Leader in collectibles authentication

Leading grading platform for trading card and coin collectibles.


Flatiron 01 pro nat

Nat Turner

Executive Chairman

Collectors Universe is the leading authentication and grading service provider for trading cards, sports memorabilia and coins. Its business units include PSA (Professional Sports Authenticator) and PCGS (Professional Coin Grading Service). PSA is the most valuable standard of authentication, driving card value uplift of 5-20%+ as compared to competitors, bringing trusted quality and enabling liquidity in the underlying trading card market. As the sports card trading market continues to grow with new collectors entering the category and asset values rising, PSA’s role in the marketplace becomes increasingly integral, with exciting service offering expansion opportunities.

Collectors Universe is led by Nat Turner as its Executive Chairman, whom Stripes is excited to back for a second time after previously working with him when he was CEO of Flatiron Health, a former Stripes portfolio company. Nat is one of the most prominent card collectors in the world in addition to being a serial technology entrepreneur with a track record of success, and Stripes is excited to help him build a best-in-class team that will leverage technology and data to disrupt the $8B+ GMV trading card market.

The information noted above is representative as of the time noted/March 2021 and has not been updated.


PSA, under Collectors Universe, is the leading trading card grader and authenticator, with an edge in the market due to its brand strength and unique data advantage.