Independent Coin Grading Company (ICG). Englewood, CO. ICG began operations in July 1998. Key feature is all coins are sent to service through a certified public accounting firm, which is touted to eliminate any bias based on the identity of the submitting firm. 

Sovereign Entity Grading Service, Inc. (SEGC). Lookout Mountain, GA. Also began operations in July 1998. Encapsulated slabs are color-coded based on metal composition. In addition, slabs have top viewing labels for ease of selecting coins when stacked.

Photo-Certified Institute (PCI). Chattanooga, TN. PCI acquired another latter day grading service, Hallmark and combined operations. Not considered a major service in grading with most coin dealers in the industry. One of the cheapest services to use. Prices reported monthly in CCDN