Felltreks - Offers guided walks based out of Wasdale, specialising in the local fells and the surrounding Lake District. - http://www.felltrek.co.uk/
Serac Outdoors Sports - Walking holidays and rock-climbing courses in the North East of England. Includes activity and location information. - http://www.seracoutdoorsports.co.uk/
Wellington Lodge llamas - Walking tours using llamas to carry equipment and luggage in the North York Moors. Packed lunches and Champagne available. - http://www.llamatreks.co.uk
Way2go4 Walking Holidays Ltd - Guided walking tours of Devon and Cornwall. Includes information about tours and prices as well as photos. - http://www.way2go4.com/walking/
Joyce's England Walking Holiday Tours - Walking holidays for singles and couples of all ages. Areas include Wiltshire, Gloucestershire, Devon and Exmoor - http://www.joycesengland.co.uk/
Exmoor Walker - Guided walks on Exmoor and The Quantock Hills. - http://members.madasafish.com/~exmoorwalker
Dartmoor National Park Authority - Browseable list of walks on offer, with information on prices and food and drink required, with clickable map for information on walks in given areas. - http://www.dartmoor-npa.gov.uk/dnp/walks/homepage.html
Curlew Guided Walking - Mountain walking holidays and hiking vacations in England - Lake District, Yorkshire Dales, Cumbria. Guided rambling, trekking and outdoor breaks. - http://www.users.globalnet.co.uk/~curlewgw/