About Us

Thamserku is Nepal’s leading adventure-travel and holiday agent. With over 23 years experience with our international partners we are the specialists in trek and expedition services for groups from across the globe.
Thamserku – Journeys of imagination

Our story

Our story begins with a couple’s passion – a passion for the greatest mountains in the world: the Himalaya. As guides and adventurers husband and wife team Sonam and Pasang Lamu Sherpa spent many years exploring the Himalaya’s magical valleys and ancient ways, setting the standards for mountaineering and climbing these magnificent peaks. The Sherpa people have traditionally been known as ‘the guardians of the Himalaya’. As Sherpa, we know and love this region and it is in this role that Sonam wished to share this knowledge and love with others. On his return from a season work in the French Alps, he knew he had to turn this journey of the imagination into a reality. In Sonam words “it was when standing on the summit of the 6,632m peak, Thamserku, that I decided to form a company that would offer everyone the opportunity to discover and appreciate the beauty and challenge of these awe inspiring mountains.” And so the Thamserku Company was born, establishing itself in a tiny office in central Kathmandu.

Within the first year Thamserku attracted a young French trekking company, Allibert, and Ralf Dujmovits Amical Alpin. From the early days of just 18 intrepid French trekkers to over 1000 clients in 2009 the companies have grown hand-in-hand over the years, developing into highly successful, world renowned adventure specialists.

With Thamserku beginning to grow, Sonam’s brothers, Ang Tschering and Ang Tendi, joined in 1992 adding more skills and capacity to the hard-working team. This year Thamserku won third biggest adventure company in Nepal.
In the same year Pasang Lamu Sherpa led Thamserku’s first Everest summit attempt. As the first Nepali woman to summit Mount Everest, Pasang Lamu Sherpa still holds a firm place in her countrymen’s hearts and history. Although tragically she died on descent her inspiration and passion live on through Thamserku.
Tragedy struck again in 2001 with Ang Tendi losing his life in a helicopter crash whilst attempting a rescue of stranded high-altitude mountaineers.
Despite these losses Thamserku began to expand rapidly as trekkers and mountaineers from around the world recognised the company’s pioneering, outstanding services. In 1994 they moved into a large office complex in Kamal Pokhara then, outgrowing this space, moved to the present location in Basundhara three years later. 
To support the booming trek and expedition business and extend the services to clients the brothers established Yeti Airlines. Ang Tshering shifted from Thamserku in 1998 to focus on developing the Yeti Airlines brand.
In the intervening years Thamserku has achieved many notable firsts: supporting the Philippino National team to make their world first female traverse of the Everest summit ridge; a Thai Everest Expedition to mark the King’s 80th birthday in 2008; several large French and German Everest summit teams; a British medical team summiting Everest from the south side in 2002; First Iranian men & woman expeditions on Everest, First Greece, First French woman in 1990, Ralf Dujmovit’s on all the Nepalese and Tibetan 8000m peaks during his successful bid to become the first German to summit 14 of the world’s highest mountains. And most recently both Spain’s Edurne Pasuban and, separately, Austria’s Gerlinde Dujmovit as they compete to conquer the fourteen 8000ers – the first women to do so.

Today Thamserku and Yeti Airlines along with sister companies Yeti Mountain Homes and Yeti Holidays (a travel agency) work in close alliance providing a second-to-none all round service for travellers in Nepal.

Thamserku, now run by Sonam and son Namgyal along with an outstanding team of dedicated guides, cooks and adventure specialists, offers wild and exciting journeys and expeditions for people from all over the world.