Borneo Orangutan Survival Foundation


Four Friends Embark on First Day of Forest School

Nyaru Menteng’s Forest School Group 1 welcomed its newest members: Hanin, Timpah, Yutris, and Momot.

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Cemong: Giant of the Kehje Sewen Forest

Cemong is one of the biggest orangutans the BOS Foundation has released to the Kehje Sewen Forest in East Kalimantan: His weight upon release in February was 120 kilograms! Almost two months have passed, and giant Cemong has spent much of his newfound freedom roaming deep into the heart of the Kehje Sewen.

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[PRESS RELEASE] BOS Foundation Deploys More Orangutans to Salat Pre-Release Island

BOS Foundation in Nyaru Menteng (Nyaru Menteng) is deploying 12 more orangutans who have completed Forest School onto their pre-release island, Salat, in Pulang Pisau Regency, Central Kalimantan.

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BOS Foundation and fX Sudirman Jakarta Organise “Voice for Earth”

To commemorate Earth Day, which falls today, the BOS Foundation, in cooperation with fX Sudirman Jakarta, as organised a series of events themed #SuaraUntukBumi, or Voice for Earth.

April 22, 2017
Eight Years Restorasi Habitat Orangutan Indonesia

It has been eight years since RHOI’s establishment, and much progress has been made. From 2012 to date, 62 orangutans from Samboja Lestari were reintroduced to Kehje Sewen Forest. Among the 62 released, two adult females - Yayang and Lesan – have given birth to our first wild babies in Kehje Sewen, which is a great indicator of the success of our orangutan reintroduction program. 

April 21, 2017
Taymur Returns Home!

After months of coordinating and planning, we are delighted to announce that Taymur has finally returned home! Over the last few months BOS Foundation has been working tirelessly with the Ministry of Environment and Forestry, together with the Ministry of Foreign Affairs through the Indonesian Embassy in Kuwait, to successfully repatriate this 2-year old male orangutan. 

April 18, 2017


We had translocated 11 orangutans who need rescuing urgently

About BOS Foundation

Established in 1991, the Borneo Orangutan Survival (BOS) Foundation is an Indonesian non-profit organization dedicated to the conservation of the Bornean orangutan and its habitat, in cooperation with local communities, the Indonesian Ministry of Forestry and international partner organizations.

The BOS Foundation is currently taking care of almost 750 orangutans with the support of 400 highly devoted staff, as well as experts in primatology, biodiversity, ecology, forest rehabilitation, agroforestry, community empowerment, education, and orangutan healthcare.

  • About Orangutans

    Find out more about orangutans here!

  • FAQ

    Frequently asked questions about orangutan

  • Fact

    Orangutan has a tail. Fact or Myth?
    Find out more here!

BOS Foundation Programs

Nyaru Menteng

Central Kalimantan Orangutan Reintroduction Program at Nyaru Menteng

Samboja Lestari

East Kalimantan Orangutan Reintroduction Program at Samboja Lestari






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