A-Apex Trekking and Tours Pvt. Ltd., Abode Himalayan Adventure Treks, Above the Clouds Trekking, Access Himalaya Treks and Expeditions, Acme Discovery Treks and Expedition (P) Ltd, Active Adventure, Adventure Centre Asia, Adventure Fairsteps Holiday Tour & Trekking, Adventure Garden Nepal Pvt. Ltd., Adventure Glacier Treks and Expedition

Beyond the Limits Trek and Expedition Pvt. Ltd., Bike Nepal, Blue Sky Treks and Exploration Pvt. Ltd., Bluemountain Treks and Expeditions, Boomerang Travels, Boudha Himal Trekking, Buddha Treks and Expedition (P) Ltd, Budget Treks and Expeditions

Caravan Treks, Center Pole Everest Trek and Expeditions, Cho-Oyu Trekking and Mountaineering, Cine Treks Pvt. Ltd., Columbus Treks and Expeditions Pvt. Ltd., Community Action Treks, Cross Country Treks and Travel, Cultural Treks and Expedition Pvt. Ltd.

Dharma Advenures Pvt Ltd, Different Treks Services, Drisya Nepal Treks and Expeditions

Earthbound Expeditions, Eco Nepal Adventure (P) Ltd, Eco Trek International, Eco Trek Nepal, Eco-Friendly Treks and Expeditions (P) Ltd, Ecological Treks Pvt. Ltd., Edelweiss Treks and Expedition, Enviro Treks Pvt. Ltd., Euro Asia Treks, Everest Zone Trek and Expedition

Far Out Nepal, First Environmental Trekking, Friends Adventure Team (P) Ltd., Friends in High Places, Fusion Nepal Treks and Travel

Getaway Himalayan Eco Trekking and Tours, Ghale Treks and Expeditions, Globe Trekker, Globe Trekking Himalayan Guide Services Pvt. Ltd., Golsera Trekking and Expedition, Green Lotus Trekking, Green Peace Trekking, Gurkha Trekking Overland, Gurung Adventure, Gurung Travels and Tours

Happy Adventure Treks, High Mountain Wave Trekking, Highlander Nepal, Hima Trek International Pvt. Ltd, Himalaya Heart Treks and Expedition, Himalaya Trekking, Himalayan Balloon Sunrise, Himalayan Ecological Trekking (P) Ltd., Himalayan Envpro Adventures, Himalayan Glacier Trekking Pvt. Ltd.

Iceland Trekking and Expedition Pvt. Ltd.

Journeys Mountaineering and Trekking

Kailash Excursions, Kailash Himalaya Treks Pvt. Ltd., Kailash Yetra, Kamana Treks and Expedition (P) Ltd, Karnali Excursions, Kasthamandap Treks and Expedition, Kathmandu Mountain Bikes, Kohinoor Adventure (P) Ltd, Kumari Tours and Travels (P) Ltd.

Lal Man Trekking and Expedition, Lali Gurans Treks Pvt. Ltd., Langtang Ri Trekking Pvt. Ltd., Lion Trekking and Expedition, Lomanthang Treks

Mactrek and Expedition, Makalu Adventure Treks, Makalu Trekking Pvt. Ltd., Malla Treks, Manakamana Expedition, Marron Treks Pvt. Ltd., Marvel Treks, Meeting Adventure Centre Pvt. Ltd., Montagnes Du Monde Himalaya, Monterosa Treks and Expeditions

Nature Trail Trekking, Nepal Adventure Pathfinder, Nepal Ecology Green Treks, Nepal Gorkha Treks UK, Nepal Master Trekking, Nepal Mountaineering Association, Nepal Myths and Mountain Trails, Nepal River Trails Pvt. Ltd., Nepal Tibet Trekking, Nepal Trekking and Expedition

Om Mani Padmeh Treks

Pabil Treks (P) Ltd., Parajuli Trekking Pvt. Ltd., Parikrama Treks and Expeditions, Peace Nepal Treks, Peak Paldor Trekking and Expedition Pvt. Ltd., Plan Holidays

Ramdung Go Trekking and Expedition, Reach For The Sky Adventure Travel, Red Panda Excursions, Regal Excursions, Reisen Nepal Tours and Travels Pvt. Ltd., Royal Mt. Trekking Pvt. Ltd.

Sachin Adventures, Sakura Tours and Treks, Sanctuary Treks, Sansui Treks and Expeditions, Scenic Adventure, Sea and Sky Tours (P) Ltd, See-Nepal (P ) Ltd, Shai River Pvt. Ltd., Sherpa Alpine Trekking Services, Sherpa Brothers Treks and Expeditions

Talisman Treks and Expedition, Tamang Expeditions, Tenzing the Guide, Thamserku Trekking, The Trekkers Society, Three Amigos Treks, Three Sisters Adventure Trekking Ltd., Top Adventure Trek and Expedition (P) Ltd., Tour Operator and Consultant, Trans Nepal Trekking

Ultimate Descents, Unique Adventure International Pvt. Ltd., Unique Path Trekking

Village Travel and Tours Pvt. Ltd., Visit Tibet Travel and Tours

The Walking and Climbing Company, Walk and Yak Holidays, Walkers Expedition, Wayfarers Himalaya Pvt. Ltd., Waypoint Adventures, Wilderness Experience, Wilderness Himalayan Adventures Pvt. Ltd, World Adventure Trekking and Mountaineering, World Peace Trekking, World Peace Trekking

Yala adventure Pvt. Ltd., Yeti Mountaineering and Trekking (P) Ltd., Yeti Treks and Expedition (P) Ltd.