Royal Mail Technical
- Gives various forms of technical assistance to users of Mailsort, Presstream and Walksort.
- http://www.mailsorttechnical.com/

Royal Mail
- Government-owned postal and parcel service. Includes a finder for postcodes and Post Offices.
- http://www.royalmail.com/

Mail Boxes Etc
- Franchised network of mail box rental locations as well as document copying and finishing, shipping and delivery services. Locations across the UK.
- http://www.mbe.uk.com/

Speedmail
- Mail-delivery solutions worldwide for direct-mail publishers and all types of businesses; based in the United Kingdom.
- http://www.speedmail.co.uk/

All Sorts
- Specialise in hand print finishing, shrink wrapping and packaging for the UK and overseas. Mailing fulfilment, laser printing and polywrapping.
- http://www.allsortsuk.com/

Pitney Bowes UK Limited
- Provides product information, technical support, and an online store for a range of franking machines, electronic postal scales, addressing printers, folders, inserters, and copiers.
- http://www.pitneybowes.co.uk