Horzine Biotech is a British scientific corporation in the Killing Floor lore that created volatile specimens as a part of a "Super Soldier" research project for the United Kingdom commisioned by the British Government. These specimens would eventually break loose and overrun the entirety of the world but due to the fact that the Zed project was worked on underground and caused many employees of Horzine to leave making a large majority of people who could ban together to gather many able-bodied fighting citizens in Britain and many other places to help kill Zeds and destroy their cloning labs in return for money.

Aside from this Horzine was a worker in Genetic modification and helped in pharmarceutical work such as creating medicine and technology such as pacemakers.