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Soi Dog Foundation (Soi Dog) was established in 2003 in Phuket, Thailand, to help the street dogs and cats who had no-one else to care for them. Over 70,000 strays roamed the island, with the numbers growing alarmingly due to a lack of spay and neuter programmes to control the population. Soi Dog was created to provide a humane and sustainable solution to managing the stray population and to address their medical needs. Funding then, as it does now, came entirely from individuals who shared, and continue to share, the vision of our founders.

Our Work

Our work with street animals consists of spaying and neutering to prevent unwanted puppies and kittens being born into short lives of suffering, along with the rescue, vaccination, medical treatment, sheltering, and adoption of those that cannot be returned to their territory. 

Soi Dog spays/neuters and vaccinates tens of thousands of street dogs and cats


Every year, Soi Dog spays/neuters and vaccinates tens of thousands of stray dogs and cats throughout Thailand, and, in 2023, surpassed the milestone of one million animals neutered since 2003. Daily mobile spay/neuter and vaccination clinics are staged across the Bangkok metropolitan area, home to hundreds of thousands of stray dogs. This project will eventually comprise ten mobile clinics. 

Spay/neuter is the only proven, sustainable and humane method of reducing the stray animal population.  Thanks to your support of our work in Phuket, the stray population on the island is now officially under control. Global studies have shown that once 80% of the population has been neutered, the number of animals living on the streets begins to decline naturally. By 2025, there should be very few strays on the streets and beaches of Phuket.

Soi Dog also campaigns for an improvement in animal welfare rights across Asia, and helps animals affected by natural disasters, such as the severe flooding in Central Thailand in 2021 and 2022, in the southern region in 2017 and prior to that, the Bangkok floods of 2011 and the Asian tsunami of 2004. 


Soi Dog Foundation is fighting the Asian dog meat trade

Soi Dog Foundation is fighting the Asian dog meat trade and thanks to overwhelming support from people like you, the trade has been almost completely wiped out in Thailand. We continue to campaign for an end to the trade, and carry out rescue operations in the Philippines, Vietnam, Cambodia, South Korea and other Southeast Asian countries where it is prevalent. 

Mission Statement

'To improve the welfare of dogs and cats in Asia, resulting in better lives for both the animal and human communities, to create a society without homeless animals, and to ultimately end animal cruelty'.

To find out more about Soi Dog’s mission and our work, you can view our “Little Orange Book” by clicking here


Nonprofit Registration

Soi Dog Foundation is a not-for-profit, legally registered charitable organisation in: Thailand: Phor.Gor. 39/2548; USA: 27-1600444; Australia: 58982568831; Holland: 37120202; France: W332011412; United Kingdom: 1176305; Canada: 981179-6; Switzerland: CHE-393.768.679

Soi Dog Foundation has a Platinum Seal of Transparency from GuideStar, the world's largest source of nonprofit information, and a maximum 4-star rating with Charity Navigator.