American Philatelic Society (APS)

American Topical Society (ATA)

Brookman Accessories

Grandma's Attic

Great Briain Collectors Club (GBCC)

Iran Philatelic Study Circle (IPSC)

Northwest Philatelic Library (NPL)

Pacific Northwest Postal History Society (PNWPHS)

Salem Stamp Society (SSS)

Stamp Buddies

Oregon Stamp Society

First Stamps (Youth)