Guided walks and holidays in the UK

Alan Kimber - Professional Mountaineering Services (Scotland)
Alpine Exploratory, UK Exploratory offer self-guided walking and trekking holidays in the Lake District, Scotland, N Wales and many other great locations. Alpine Exploratory which operates in Europe.
Andalucian Adventures Walking holidays in the Cotswolds.
Bath and West Country Walks (Bath & west)
Byways 1 (Cycling, walking and cottage holidays in Cheshire, Shropshire and the Peaks)
Caledonia Hilltreks (hillwalking and guided walking holidays in Scotland, specialising in Munro Bagging)
Celtic Trails (Walking holidays across Wales)
C-N-Do Scotland ( Walking Holidays and Outdoor Skills Courses in Scotland)
Cold Keld Guided Walking Holidays (Guided walking holidays in Yorkshire)
Compass Holidays (Walking holidays around the UK)
Contours Walking Holidays (Walking holidays in Britain & Ireland)
Countrywide Holidays (Holidays around the UK)
Curlew Guided Walking (Holidays in the north of England)
Discovery Travel (Cycling and Walking Holidays in the UK)
Exmoor White Horse Inn (Exmoor breaks)
Foot Trails (Guided walking weekends and short breaks in the UK)
Footpath Holidays (Walking holidays around the UK)
Greenways Holidays (Walking holidays in Pembrokeshire)
HF Holidays (holidays in the UK & around the world)
Hatt Adventures is an outdoor pursuits company based in Brighton, Sussex, offering a range of courses in: rock climbing, mountaineering, bushcraft, survival and kayaking. Courses for all abilities are run in a variety of locations throughout the UK, such as Sussex, The Peak District, Wales, Devon and Cornwall.
High Trek Snowdonia (Walking holidays and climbing courses in Wales)
Highland Adventure (holidays in Scotland)
Highland Hostels (Hostels across Scotland)
Hidden Cornwall (Guided Walking and Garden Holidays in Cornwall)
Hillscape (Self-guided walking holidays Mid Wales)
Hostels Wales (Hostels across Wales)
InStep Linear Walking Holidays ( Self Guided Walking Holidays in the UK)
Kernow Trek (Walking & multi activity holidays in Cornwall)
Kingcombe Centre (Walking in Dorset)
Lakes Supertours Ltd (Guided walking in the Lake District)
Lightfoot Walking Holidays (Walking holidays in Cornwall)
Lomond Walking Holidays (Guided Hiking Holidays in theScottish Highlands)
Make Tracks (Walking holidays in Scotland)
Marches Walks (Walking holidays in Wales)
Mountain Goat Holidays (guided walks & short breaks in Cumbria)
Mountain Innovations (Guided Walking Holidays & Courses in Scotland)
North-West Frontiers (Walking holidays in Scotland)
Not Entirely Sure Tours (Walking tours in Northumberland)
The Old Furnace Walking Holidays (Walking holidays on the Staffordshire Moorlands)
Orchard Trails (Walking & Cycling Holidays in Kent and East Sussex)
Ossian Guides (Guided walking holidays inScotland)
Peakland Walking Holidays (Peakland Walking Holidays)
Pete and Silva Ltd Uk (Are running a series of map and compass courses around the UK)
Pembrokeshire Walking Holidays (Pembrokeshire)
Scottish Independent Hostels (Backpackers Hostels in Scotland)
Scottish Youth Hostels Association (Scotland)
Spotlight Guides Ltd (coast to coast walk)
Step by Step Walking Holidays (walking holidays on the Isle of Wight)
Suffolk Cycle and Walking Breaks (Suffolk & Norfolk)
Transcotland (Self-guided walking holidays)
Wales Countryside Holidays (Tours across Wales)
Kevin Walker Mountain Activities (Tours and courses in Wales)
Walking Support (Planning, booking and guided walks in Scotland and North of England)
Westcountry Walking Holidays (Exmoor, Dartmoor and surrounding areas)
Wight Merit (Walking holidays on the Isle of Wight)
Yorkshire Dales Guides (Guided walking in the Yorkshire Dales)