ATAC Patagonia
- Offers a range of adventure and custom tours to Patagonia, Chile and Argentina, including horseback riding, mountain biking, hiking, skiing, and snowboarding. Itineraries, dates, and testimonials included.
- http://www.atacpatagonia.com/

South American Safaris
- Small company offers budget overland adventure tours on custom built trucks throughout the continent. Information about services and prices.
- http://www.southamericansafaris.com

AEA Expeditions
- Tours and trekkings in Aconcagua, Ojos del Salado, Pissis, cordon del Plata. Offers certified high mountain guides, mules, transportation, and logistic support for groups.
- http://www.aeaexpeditions.com

Chilean Andean Snow Adventures
- Eight to fifteen day guided skiing and snowboarding tours of Chile and Argentina, running July through September. [requires Shockwave plugin]
- http://www.casatours.com

Aymara Expeditions
- Offers services on Mt. Aconcagua and other adventure trips.
- http://www.aymara.com.ar/

Latin Link Adventures
- Specialists in South American travel with packages to suit all ages and levels of fitness.
- http://www.latinlink.co.nz

Andes Adventures
- Offers adventure tours in Ecuador, Peru, Bolivia, Chile and Argentina. Trekking, climbing, rafting, mountain bike, and Amazon rain forest expeditions.
- http://www.andes-adventures.com/

Blue Snake River Travel
- Tour operator for rafting and horse back expeditions in the Futaleufu valley in Patagonia. Also rafting trips through two of the world deepest canyons in Peru: Colca Canyon and Acobamba Gorge.
- http://www.bluesnaketravel.com/

South America Adventure Travel - iExplore
- A supplier of adventure travel trips specializing in trekking, Maya exploration, Amazon cruises and hiking.
- http://www.iexplore.com/dmap/Central+and+South+America/Link

Absolute Adventure Travel
- Specializes in international adventure travel in South America. Offers trekking in Peru, from the Inca Trail to Machu Picchu and Amazon adventures.
- http://www.absoluteadventuretravel.com

South American Expeditions
- Specializes in traveling to Amazonia forest, offers,lodge and a base camp. Both are built with material from the region. The lodge has screened cabins with private bathrooms and showers.
- http://www.southamericaexp.com/

Adventure Life
- Offers and holistic approach to travel to Ecuador and Peru.
- http://www.adventure-life.com/

Amazonas Explorer Adventure Tours
- River rafting, canoeing and hiking in Peru and Bolivia.
- http://www.amazonas-explorer.com

Hotelsa Patagonia Expedition
- Visit Glaciar and Lake San Rafael in just 12 hours, and you'll still have time to get to know part of Chilean North Patagonia.
- http://www.hotelsa.cl

Adventure Network International
- They know the vast polar region like no other company; with a permanent base on the continent throughout the Antarctic summer, ANI is the only organization in the world providing services in the Antarctic interior
- http://www.adventure-network.com

Patagonia Adventures
- Adventurous tours led by native Patagonians where you will visit beautiful vistas,penguins,whales,seals, glaciers..
- http://www.patagoniaadventures.com

Solandino
- Cultural travel, trekking, hiking and climbing in Peru and Bolivia with the pioneer of the andean adventure.
- http://www.solandino.com/

Amazon Adventures
- classic and adventure travel in Peru, Brazil, Ecuador and Venezuela. Also Chile, Argentina and Costa Rica.
- http://www.amazonadventures.com

Discover Amazonia
- A guide to travel, tours, nature tours, cruises, treks, jungle lodges, birding and rafting in the Amazon rainforest of Ecuador, Peru and Brazil...
- http://www.discoveramazonia.com/

Austral Tours South America
- Best Airfares,Tours and airfares to South America. Get your airfaes on the spot "online" Brazil, Peru, Argentina, Chile, Machu Picchu, Iguazu Falls
- http://www.australtours.com

Patago Adventure Travel
- Fly-fishing, walking, hiking, sea kayaking, horseback riding, and customized adventure tours for students, groups, and individuals through the Patagonian Region of South America.
- http://www.patago.com

Untamed Path
- Small group active adventures to remote parts of Ecuador Bolivia and Peru. Rafting, trekking, climbing, rainforest journeys, cultural exchange from the Andes to the Amazon.
- http://untamedpath.com