In 2004 the Department of Trade and Industry and the UK Film Council backed the establishment of a new trade body, UK Post, to represent the post production and visual effects sector. In a relatively short space of time UK Post demonstrated that the seemingly fragmented post production sector could unite to tackle the overarching issues which impacted the industry. UK Post made a major contribution to the film tax consultation conducted by HM Treasury and the DCMS. It also engaged effectively with the BBC to access information which enabled member companies to take more informed decisions about the future direction of their businesses. It has promoted the post production sector both domestically and overseas ever since.

During UK Post's dealings with various government bodies, broadcasters and trade associations, it became apparent that there was a considerable amount of shared interest amongst the infrastructure companies and that, with stronger representation and a more cohesive approach for the whole service sector, the industry would be in a much better position to face the many challenges and opportunities ahead.  The board's strategy to open up membership to all companies providing services to the film and broadcast industry was agreed by member vote and as part of the 3rd birthday celebrations the board announced the name had been changed to UK Screen Association.

UK Screen played a significant part in driving the changes to film and HETV tax relief announced in the Chancellor’s 2013 Autumn Statement which created an increase in inward investment work. Further lobbying during 2014 resulted in the lowering of the qualification threshold for tax relief from 25% to 10% in the Chancellor's Budget of 2015 and reform of the cultural test.  This allowed many productions to qualify for tax relief on the basis of VFX or post production work alone.

In late 2016, UK Screen Association announced that it was to amalgamate with Animation UK under the new banner of UK Screen Alliance. By joining together, the two organisations will have a stronger voice and greater influence, by making it easier for Government and these key parts of the screen industries to interact and cooperate.