Coin Dealers Helping Coin Dealers and Roundtable Trading Extend Collaboration with NGC, NCS and PMG

Posted on 3/30/2020

NGC, NCS and PMG serve as the Official Grading and Conservation Services of the popular Facebook group “Coin Dealers Helping Coin Dealers” and Roundtable Trading, LLC, an affiliated platform.

Numismatic Guaranty Corporation® (NGC®) and Paper Money Guaranty® (PMG®) are pleased to announce that they have been reappointed as the Official Grading Services of the popular Facebook group "Coin Dealers Helping Coin Dealers," as well as Roundtable Trading, LLC, an affiliated dealer-to-dealer trading and informational platform. Numismatic Conservation Services™ (NCS®), an affiliate of NGC and PMG, will also continue to serve as the Official Conservation Service of both groups.

Coin Dealers Helping Coin Dealers is a private Facebook group for coin dealers and other industry professionals to conduct transactions and share information. It currently has over 750 members, who are allowed to join only after a careful admissions process. This group has had a significant impact on the wholesale coin market and is used by many of the country's largest and most prestigious dealers. Dealers interested in being considered for the group should call 770-419-0292 or email

Roundtable Trading, LLC extended the group's objectives into a dedicated online platform where additional services could be offered. Both groups were founded and are operated by Rob Oberth, a longtime coin dealer.

Established in 1987, NGC is the largest third-party grading service for collectible coins, tokens and medals with more than 45 million coins certified. NCS is a pioneer of professional coin conservation services and has conserved more than 1 million coins. PMG, the largest third-party paper money grading service, has certified nearly 5 million banknotes.

"Our community of dealers has a high level of trust in NGC and PMG, as shown by the robust sales of NGC-certified coins and PMG-certified notes on our platforms," said Oberth. "We are thrilled to continue our relationship with NGC, NCS and PMG."

“Coin Dealers Helping Coin Dealers and Roundtable bring together many of the most active and innovative dealers in the industry,” said Mark Salzberg, Chairman of NGC, NCS and PMG. “NGC, NCS and PMG are proud to continue as the Official Grading and Conservation Services of these dynamic groups.”

NGC, NCS and PMG are independent members of the Certified Collectibles Group® (CCG®) of companies headquartered in Sarasota, Florida, USA. The companies have branch offices in London, Munich, Hong Kong, China and Shanghai, China, as well as a global network of Official Submission Centers, Strategic Partners and Authorized Dealers.

NGC, NCS and PMG are the Official Grading and Conservation Services of numerous organizations and companies around the world, including the American Numismatic Association (ANA), the only coin collecting organization chartered by the US Congress, and the Professional Numismatists Guild (PNG), the country's most prestigious nonprofit dealer organization.

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