Swan Stamps
- Specializes in United Kingdom classics.
- http://www.british-stamps.net/

Argyll Etkin
- Specializes in classics and postal history.
- http://www.argyll-etkin.com/

Arthur Ryan & Co.
- Specializes in regular and BOB issues, plus booklets and sheets.
- http://www.gbstamps.co.uk/

Sturminster Stamps
- Specializes in classics.
- http://www.sturstamps.com/

Stanley Lisica
- Specializes in post-World War II mint issues.
- http://www.stanleylisica.com/

Stanley Gibbons
- Catalogue publisher also sells stamps, albums, and supplies.
- http://www.stanleygibbons.com/

Stamp Shop
- Specializes in New Zealand, postcards, and coins.
- http://www.stampshop.co.nz/

Sovereign Stamp Company
- Specializes in Canadian and other issues.
- http://www.stampnut.com/

SH Stamps
- Offers in various issues.
- http://www.sh-stamps.co.uk/

SC Stamps
- Offers mint issues and FDCs.
- http://www.scstamps.co.uk/

Robin Linke
- Specializes in covers of Australia and the Pacific Ocean.
- http://www.robinlinke.com.au/

QV Pennies
- Specializes in engraved issues portraying Queen Victoria.
- http://www.qvpennies.com/

Purves Philatelics
- Specializes in various issues.
- http://www.purvesphilatelics.co.uk/

Philately Phor Phun
- Offers various issues.
- http://www.donslau.com/

Philatelic Items
- Offers various issues.
- http://www.philatelic-items.co.uk/

Peter's Stamps
- Offers Channel Islands and other issues.
- http://www.petersstamps.com/

Faldor Stamps
- Specializes in Australia and the Pacific Ocean.
- http://www.space.net.au/~faldor/

Paddington Philatelics
- Specializes in mint issues.
- http://www.paddingtonphilatelics.co.uk/

New Zealand Covers
- Sells FDCs, advertising envelopes, and other postal history.
- http://www.newzealandcovers.com/

Johnson Philatelics
- Specializes in African and other issues.
- http://www.johnson.co.za/

John Lister
- Specializes in various issues.
- http://www.johnlister.ltd.uk/

Heart of England Philatelics
- Specializes in various issues through 1960.
- http://www.heartofenglandphilatelics.co.uk/

Grahame W. Mann
- Offers various issues.
- http://www.stampsuk.com/

Gibraltar Philatelic Bureau
- Offers recent issues from territory next to Spain.
- http://www.gibraltar-stamps.com/

Embassy Philatelists
- Specializes in early issues.
- http://www.stampdomain.com/embassy/

Elstree Stamps
- Specializes in issues of the United Kingdom.
- http://www.elstreestamps.com/

British First Day Covers
- Specializes in commemorative envelopes.
- http://www.bfdc.co.uk/

Brandon Galleries
- Specializes in classics and errors.
- http://www.stamperrors.com/

Aron R. Halberstam Philatelists
- Specializes in issues through 1960.
- http://www.aronrhalberstam.com/