Sustrans
- Locally based organisation promoting sustainable transport and the National Cycle Network. Details of campaigns, online shop, membership and support and maps of the cycle networks.
- http://www.sustrans.co.uk/

Cycle West
- Aims to work with employers on making their premises more cycle friendly, provide a cyclists' information and advice service and encourage employees to cycle to work. Promotional events.
- http://www.lifecycleuk.org.uk/

Cyclists' Touring Club Bristol Section
- Organises events and rides for members locally and abroad: diary, reports, photo gallery, links.
- http://www.ctcwest.org.uk/bristol/

Bristol Cycling Campaign
- Action group promoting the use of cycles. Diary, campaigns, news, routes, gallery.
- http://alt-transportbristol.gn.apc.org/