There have been many visual effects companies to work on the Harry Potter series.

A separate video posted by the same user, alymc01, is believed to have been shot from inside the offices of a visual effects company called The Mill.

Their clients include film studios, independent filmmakers, advertisers, animators, visual effects companies and large format filmmakers.

Electric Image, Inc. was initially a visual effects production company.

Luma Pictures is a visual effects company based in Santa Monica, California.

The print contained a reference to Rising Sun Pictures, an Australian visual effects company working on the film.

Stewart was a senior staffer at the visual effects company The Orphanage.

On Stranger Tides employed 1,112 shots of computer-generated imagery, which were done by ten visual effects companies.

Bandito is a British visual effects company located in Winchester.

Supervisors can be employed directly by a film production company or work for a visual effects company.