Action Challenge
   Organizers of hiking, biking, riding and rafting expeditions around the world. Works with charities, companies, and private groups. Based in London, England.
   http://www.actionchallenge.com/

Active Tours
   Walking and cycling tours in Europe and California. Offices in Santa Cruz, California and Switzerland.
   http://www.andiamoadventours.com

ActiveTrips
   Runs hiking and biking trips in the western United States, including Hawaii, Central America, and Asia. Includes area information and photos.
   http://www.activetrips.com

Adventure Club of New Jersey
   Specializes in sailing in the Caribbean, South Pacific, and Mediterranean; skiing in Colorado, Canada, and western United States; plus local hiking, biking, and inline skating.
   http://www.usac.com/

Adventure Planet
   Plans biking and hiking trips to Moab, Utah; Baja, Mexico; Alaska; and worldwide to Nepal, Thailand, India, and Peru.
   http://www.adventureplanet.com

Adventure Treks
   Offers trekking, snow-shoeing, and multi-activity trips in Chamonix, the Alps, Tunisia, and Peru. Based in Chamonix, France.
   http://www.adventure-treks.com

Alaska Bush Safari Company
   Customized private adventure tours of Alaska. Catering to small groups and families. Air tours, back country expeditions, wildlife safaris, National Park and glacier tours.
   http://www.alaskabushsafari.com/

Alpine Interface
   Guided trekking and hiking tours to the Alps, the Himalayas, southwestern United States, and Mexico plus snow shoeing and ice climbing in the winter. Includes trek, accommodation, and company information. Based in Connecticut.
   http://www.alpineinterface.com

Backroads Active Travel
   Bicycling, hiking, walking, cross-country skiing and multisport vacations in Europe and the United States.
   http://www.backroads.com

Been There Yet
   Customized trips including polar bear safaris, white water rafting and mountain climbing. Includes photo gallery, currency exchange and library.
   http://www.beenthereyet.com

Beyond Limits
   Offers custom and fixed itineraries including trekking, climbing, skiing, kayaking, and biking worldwide. Includes details for fixed itinerary trips.
   http://www.byndlimits.com

BikeHike Adventures
   Offers multi-sport small group tours in South and Central America, Canada, and New Zealand. Trips involve biking, hiking, rafting, climbing, and other activities.
   http://www.bikehikeadventures.com

Breakaway Adventures
   Trekking and cycling tours in Europe, Africa, New Zealand, and Asia. Offers both guided and self-guided tours.
   http://www.breakaway-adventures.com/

Canders House Guide Service
   Offers fishing, canoeing and canoe camping, moose photography, grouse hunting and camping, and duck hunting trips. Registered Maine Guide based in Greenville, on Moosehead Lake, and serving in the Maine wilderness from Mt. Katahdin to the Allagash.
   http://www.candershouse.com/candershouse%20guide%20service.htm

Canoe Outfitting into Canada's Woodland Caribou Park
   Complete or partial outfitting for canoe enthusiasts travelling into Woodland Caribou Provincial Park, located in the Red Lake area of Northwestern Ontario, Canada
   http://www.woodlandoutfitters.com

Delmarva Outdoor Adventure Outfitters
   Offers snow goose hunting in Maryland and Delaware, as well as exotic Sika deer, and turkey hunting and other outdoor excursions in Maryland, Delaware, North Dakota, and Washington. Based in Sharptown, Maryland.
   http://www.doaoutfitters.com

EcoExpeditions
   Offers trekking and biking trips to Nepal, Pakistan, Central Asia, Africa and South America.
   http://www.ecoexpeditions.no

Freewheeling Adventures
   Biking, walking, sea-kayaking, and multisport vacations, with accommodation and dining with van support and guides. Operates in Canada, Europe, and Mexico. Based in Nova Scotia, Canada.
   http://www.freewheeling.ca

Fun Adventure
   Directory of organizers and guides for a variety of activities, indexed by activity and county. Content in Dutch, French, and English.
   http://www.funadventure.com

Geographic Expeditions
   Offers fixed itinerary and pre-planned tours world wide. Activities include walking, horseback riding, and kayaking. Features photos and trip details.
   http://www.geoex.com/

Global Adrenaline
   Provides customized itineraries globally including hiking, mountain biking, safaris, kayaking, canoeing, and scuba diving. Includes trip details and destination information.
   http://www.globaladrenaline.com

Global Sporting Safaris
   Offers hunting and fishing trips worldwide. Includes pricing, terms, and conditions.
   http://www.gssafaris.com

Gordon's Guide
   Features listings of adventure companies worldwide. Browse by category or by destination. Provides a newsletter and lists travel bargains.
   http://www.whitewateradventures.com/

Hassle Free Fishing
   Co-ordinates fishing and hunting trips to Mexico, Venezuela, or Brazil for bass fishing and hunting packages. Photos, links and information.
   http://www.hasslefreefishing.com

Hot Spot Guides
   Directory of fishing and hunting guides worldwide. Ability to search by location, species, or company name.
   http://www.hotspotguides.com

Hunt and Adventure
   Offers hunting, fishing, and scuba diving tours worldwide. Includes pricing and trip details.
   http://www.geocities.com/lozovich/

McCarthy Adventures
   Runs hunting, fishing, and photography trips worldwide. Includes downloadable catalog and online specials.
   http://www.mccarthyadventures.com/

Mountain Experience
   Conducts tours including trekking, climbing, safaris and mountaineering in South America, Asia, Africa and Mexico. Includes calendar, trip details, and trip reports. Based in Washington.
   http://www.mountainexperience.com/

Muir's Tours
   Non-profit company offers small group tours of Asia, and North and South America. Activities include trekking, white water rafting, biking and climbing. Based in Berkshire, England.
   http://www.nkf-mt.org.uk

Northwest Passage Adventure Travel
   Offers fixed and custom itineraries for sea kayaking, cycling, backpacking, and mountaineering worldwide. Includes trip and destination details and pricing.
   http://www.nwpassage.com

Outdoor Wilderness Adventures
   Booking agent for Bass Pro Shops worldwide hunting and fishing outfitters, guides and lodges.
   http://www.outdoorwildernessadventures.com

Outdoors Central
   Provides web services to hunting outfitters, fishing guides and outdoors recreational providers.
   http://www.outdoorscentral.com

Peak Freak Expeditions
   Offers Himalayan mountaineering expeditions plus Canadian backcountry skiing, avalanche and outdoor leadership courses.
   http://www.peakfreaks.com

Peaks and Places Travel
   Offers climbing, diving, and trekking trips in South America and Africa. Photo gallery, mailing list and FAQ. Based in Ridgway, Colorado.
   http://peaksandplaces.com/

Pike County Bucks
   Offering hunts for trophy whitetail deer, turkey and fishing. Includes package details, photos, FAQs, terms and conditions, and contact information. Located in Wheeling.
   http://www.pikecountybucks.com

Pourvoirie Mike's Outfitter
   Guided hunting, fishing, and snowmobiling. Self-guided fishing is also available. Other activities are cross-country skiing, snow-shoeing, and ice fishing.
   http://www.mikesoutfitter.com

REI Adventures
   Specializing in hiking, cycling, kayaking, and backpaking vacations worldwide. Based in Sumner, Washington.
   http://www.reiadventures.com/

RaftSiberia
   Provides whitewater rafing, trekking, and fishing trips in Russia, Siberia, and the United States. Offers river information and contacts.
   http://www.raftsiberia.com/

Renaissance Adventure Guides
   Worldwide trips including whitewater rafting, kayaking, trekking, and skiing. Also offers instructional clinics in Colorado. (Golden, Colorado)
   http://www.raguides.com

Rocky Mountain Adventures
   Tour operator for mountain biking and snowboarding holidays in the United States, Canada, and France. Based in Liverpool, England.
   http://www.rockymountain.co.uk/

Rogue River Driftboat Fishing
   Driftboat fishing on Oregon's Rogue River
   http://www.roguerivertrips.com/driftboatfishing.htm

Roxton Bailey Robinson
   Offers fishing, safaris, and general travel trips worldwide. Specializes in Africa and the Indian Ocean. Includes trip and area information.
   http://www.rbrww.com

Sherpa Expeditions
   Offers hiking and biking tours in Europe, Africa, South America, and the Himalayas. Based in Hounslow, England.
   http://www.sherpa-walking-holidays.co.uk/

Splash White Water Rafting
   Whitewater rafting, abseiling, kayaking, canyoning, and bridge swinging in Scotland, Morocco, Chile, Ethiopia, Australia, and Turkey.
   http://www.rafting.co.uk/

The World Outdoors
   Biking, hiking, and multi-sport trips including horseback riding, kayaking, and snorkelling for small groups.
   http://www.TheWorldOutdoors.com

TheBlueSpace Adventure Guides Co-Operative
   An Adventure, Trekking, Hiking, and Canyoning Guides Co-Operative specialising in Nepal, Japan, Thailand, Australia, Chile, Mallorca, Pyrenees and Austria. Tailor made trips at budget prices.
   http://www.thebluespace.com

Ultimate Xpeditions
   Consulting agency that finds outfitters for hunting and fishing trips in destinations worldwide. Includes company profile and postings for openings on tours due to cancellations.
   http://www.ultimatexpeditions.com/

World Class Expeditions
   Hunting and fishing trips to Argentina, Mexico, Alaska, and Texas. Based in Sugar Land, Texas.
   http://www.worldclassexpeditions.com

World Outside
   Tour outfitters offering hiking, mountain biking, rafting and self-guided adventures in the Americas and the South Pacific. Based in Boulder, Colorado.
   http://www.TheWorldOutside.com

World Wide Walkers
   Offering hiking, trekking, climbing, and camping tours in England, Scotland, the Himalayas, South America, and South Africa.
   http://www.wwwalkers.com/

Yannick Seigneur
   Tours including skiing, ice climbing and trekking in the Alps was well as desert and mountain tours to destinations such as Jordan. Content in English and French. Based in Chamonix, France.
   http://www.chamonixguide.com

Yorkshire Schools Exploring Society
   Information about expeditions for pupils. Activities include field work, white water rafting, kayaking, mountaineering, mountain biking and trekking in places like Kenya, Peru, Canada, Tibet, Australia and Iceland. Based in West Yorkshire, England.
   http://yses.org.uk