Companies
CCG is a group of independent companies focused on the impartial, independent,
and expert certification and grading of collectibles.

Numismatic Guaranty Corporation
http://www.ngccoin.com
NGC is the world’s leading and largest third-party grading company. These coins are securely encapsulated within the innovative and industry-leading NGC holder – the same holder rigorously tested and implemented by the Smithsonian to preserve and protect their most valuable coins. Once encapsulated, these coins can be showcased with NGC's Photo Proof and historical documentation. And for coins that may have been adversely affected by storage or the environment, NGC's independent affiliate, Numismatic Conservation Services (NCS), can help bring out a coin’s original beauty and detail while simultaneously prolonging its life. NGC is proud to be the Official Grading Service of both the
Professional Numismatists Guild (PNG) and the
American Numismatic Association (ANA).
NGC's dominance in coin certification is paralleled by its commitment to numismatic education and resources, including the NGC Registry, which enables collectors to register and display their collections with other collectors, VarietyPlus™, the NGC Coin Encyclopedia, Community Message Boards and free public access to the NumisMedia price guide, the leading independent price guide for the hobby.

Numismatic Conservation Services
http://www.ncscoin.com
Founded in February 2001, Numismatic Conservation Services, LLC (NCS) is devoted to the growth and preservation of numismatics. As a leading authority in numismatic conservation, NCS experts are uniquely qualified to provide professional conservation services for dealers and collectors alike. With a pledge of integrity, impartiality and responsibility, NCS provides a service that serves to expand and enrich the hobby. The selection of NCS as the official conservation service of the American Numismatic Association is further assurance of the integrity and quality of NCS services.
NCS accepts for evaluation all certified or raw coins, tokens and medals. NCS can remove contaminants such as PVC, soils, tarnish, carbon spots, verdigris and encrustation from the surface. NCS does not perform repairs or mechanical alterations of any kind. Removing detrimental material from the surface of an item may dramatically improve its appearance and eye appeal. This service is designed to further preserve the originality of the material only and prevent the damage that can result from contamination that is left untreated.
The NCS facilities were designed by conservation experts to provide an ideal environment for performing numismatic conservation procedures. With an advanced water filtration unit and specially designed ventilation system, NCS utilizes the necessary equipment to insure professional results.

Paper Money Guaranty
http://www.pmgnotes.com
The most comprehensive third-party note grading and encapsulation service, PMG provides the highest levels of accuracy, integrity and impartiality, and delivers proven processes and standards for the care and evaluation of paper money. The knowledge, integrity and dedication of PMG's team of grading experts ensure you a level of grading consistency unparalleled in the industry. And PMG's commitment to collecting resources includes the PMG Notes Registry, an online tool that enables collectors to share and display their collections alongside other great collections, and Community Chat Boards that connect collectors together from across the world.
Certified Guaranty Corporation
http://www.cgccomics.com
Both collectors and dealers alike recognize CGC as the market standard for comic book grading and certification. CGC is committed to promoting the hobby and enhancing the collecting experience through their grading opinions, restoration detection, pedigree attribution. We also make available a host of community resources, including the Comics Registry and Chat Boards, where comic book collectors come together to share their collections and knowledge with each other. CGC submitters also have the security of a high-impact, tamper evident holder that revolutionizes the protection of comic books, while featuring the CGC grade and identification information. And the prestigious CGC Signature Series comic books offer the hobby's only 100% Certified Authentic Signature.