Cinesite (also known as The Cinesite Group) is an independent, multinational business which provides services to the media and entertainment industries. Its head office in London opened for business in 1994, initially offering services in visual effects for film and television, subsequently expanding to include animation and immersive services.

Divisions of Cinesite and its partner companies Image Engine, Trixter, L'Atelier Animation, The Imaginarium Studios, Squeeze and Assemblage Entertainment operate in London, Berlin, Munich, Skopje, Belgrade, Montreal, Quebec City, Vancouver, Atlanta and Mumbai with more than 2,500 employees.

Cinesite opened its doors in Los Angeles in 1991 to help with the digital restoration of Snow White and the Seven Dwarfs. The restoration was released in 1993, and Cinesite opened a division in London in 1994. There, it originally operated as a service bureau for Kodak's Cineon digital film system. Both locations subsequently evolved to become full service visual effects facilities. In 2003, Kodak merged the Cinesite Hollywood office into LaserPacific.

In May 2012, Kodak sold Cinesite to a UK-based private investor. Current ownership is a combination of its existing management team supported by private investment.

After Cinesite became independent from Kodak in 2012, it began a sustained period of international growth.

In January 2014, with the support of Investissement Québec, Cinesite announced its opening of 27,000 sq ft studios in Montréal and a feature animation division at that location. Its initial employment target was reached 18 months early, in August 2015.

In July 2015, Cinesite announced its acquisition of Vancouver-based visual effects facility Image Engine, which has won Emmy awards for its visual effects on The Book of Boba Fett and Game of Thrones and also received an Academy Award nomination for District 9 in 2010.

In March 2017, it acquired Vancouver-based animation studio Nitrogen Studios and in August 2018 the German VFX studio TRIXTER.