The firm, known for publishing Call Of Duty, Guitar Hero and World Of Warcraft, has thrown its weight behind the campaign for tax relief for UK games development.
"At Activision Blizzard we are extremely supportive of TIGA's campaign to secure Games Tax Relief for the UK development community," said executive vice president George Rose.
"The UK has one of the most talented and creative workforces anywhere in the industry. The introduction of Games Tax Relief in the UK will be a game changer. It will make the UK a significantly more attractive place to invest in games development. Games Tax Relief will lead to increased investment, more job creation and power economic growth.
"However, if Games Tax Relief is not introduced then the UK will remain at a real disadvantage in comparison to other territories as a location for inward investment. Without Games Tax Relief the UK games industry will not fulfil its potential."
The global publisher currently owns two studios in the UK: Bizarre Creations in Liverpool and FreeStyleGames in Leamington Spa.
Last week, the government announced that it would drop plans to support tax relief for the UK games industry as part of the emergency Budget.