Pro Zeta Corporation is a protein manufacturing company specializing in synthetic meats. Their headquarters are based on Ceti Gamma II.
Pro Zeta distributes their products throughout the Earth Alliance and beyond. They are known for their significant connections with Earthgov and their questionable business practices. Captain Matthew Gideon found out about them from Max Eilerson while investigating contaminated food from the Theta 49 colonists' ship. Eilerson told Gideon that those who investigated the Pro Zeta Corporation were murdered. It was they, in collaboration with General Thompson, who made it possible for Robert Black and his colonists to get contaminated food just after they left Earth.