Stamps
- 101
- National Stamp Dealers Association
- Group promotes ethical dealings between sellers and buyers of stamps, and publishes a quarterly newsletter for dealer members.
- 102
- South African Philatelic Dealers' Association
- Provides lists of member dealers' websites and upcoming stamp shows in South Africa.
- 104
- Aylesbury & District Philatelic Society
- Club holds monthly meetings and serves stamp collectors in the Buckinghamshire, England, area.
- 105
- Baltimore Philatelic Society
- Conducts weekly meetings for collectors in Baltimore, Maryland, and publishes a bimonthly newsletter.
- 107
- Big Lick Stamp Club
- Organization serving collectors in the Roanoke, Virginia, area holds monthly meetings and sponsors two shows each year.
- 108
- Brandywine Valley Stamp Club
- Group meets monthly in Wilmington, Delaware, and sponsors annual DELPEX show.
- 109
- Buffalo Stamp Club
- Group holds meetings twice a month in Cheektowaga, New York, except during summer months, and maintains an archive of club newsletters on its website.
- 110
- Butler County Philatelic Society
- Pennsylvania-based club holds monthly meetings except during summer months, sponsors an annual show, and conducts auctions for members several times a year.
- 111
- Calgary Philatelic Society
- Club headquartered in the largest city in Alberta, Canada, holds monthly meetings except in July and August, and publishes a bimonthly newsletter which is archived on the club's site.
- 112
- Cebu Stamp Club
- Based in Cebu City, Philippines, this group of stamp collectors holds monthly meetings.
- 113
- Cedar Rapids Stamp Club
- Iowa organization sponsors 10 meetings per year plus an annual picnic and annual dinner, and promotes the annual CERAPEX show.
- 114
- Central Florida Stamp Club
- Operating in Orlando, Florida, this group archives past newsletters on its website, participates in area stamp shows, and maintains a library of reference materials for its members' use.
- 115
- Champaign-Urbana Stamp Club
- Organization's members meet twice monthly in Urbana, Illinois, and organize the annual CUPEX show.
- 116
- Charlotte Philatelic Society
- Club in Charlotte, North Carolina, meets monthly and sponsors an annual show.
- 118
- Claude C. Ries Chapter
- Affiliate of the American First Day Cover Society serves FDC collectors in southern California and holds several meetings each year.