Since its foundation Oasis has also developed into a family of charities now working on four continents (11 countries) around the world, with the goal of delivering housing, education, training, youthwork and healthcare.

[citation needed] In 2003, under Steve Chalke's leadership, Oasis became responsible for the buildings of Christ Church and Upton Chapel, in Waterloo, central London, and started working with the existing members there to form what was originally known as Church.co.uk.

In the 1800s it was also influential in the anti-slavery movement; William Wilberforce and friends made its building a venue for many of their anti-slavery meetings, and its spire, built in 1867, is named the Lincoln Memorial Tower, donated in memory of Abraham Lincoln who was both inspired and supported by in his work to achieve the emancipation of the slaves of North America through the network of friends based in London.

[2] Since 2003 a wide range of community services focused on the half-mile radius around the building, have been developed including a children's centre, a primary school, a secondary school, various adult education opportunities, a food bank, a debt advice centre, a community farm, a coffee shop, as well as becoming responsible for the local public library and launching various other youth projects and programmes.

It is a coalition working in nearly 100 countries and in partnership with multiple other charitable organisations, businesses and anti-trafficking agencies with the goal of disrupting and preventing human trafficking.

Since then, Oasis has grown to be one of the country's largest Multi-Academy Trusts (MATs) and is currently responsible for 53 schools around England; a mix of primary, secondary and all-through academies.

[11] In June 2019 the Ministry of Justice announced that they had awarded Oasis the long-term contract to run the UK's first ‘Secure School’.

Chalke explains that Oasis will offer a therapeutically informed education and health care based alternative to youth prison.