Liberty's main corporations are also known as "The Big Three": Interspace Commerce, Ageira Technologies, and Universal Shipping. Liberty has two other major corporations, somewhat less powerful than the "Big Three": Deep Space Engineering fills the role of a subcontractor to Ageira Technologies and the Liberty Navy, building ships and maintaining trade lanes and jump gates. Synth Foods, on the other hand, is a agribiz conglomerate which created the revolutionary "Synth Paste", allowing processed food to be made from unlikely vegetation. Synth Paste also has the advantage of an improbable shelf life and does not require refrigeration; however, there are concerns regarding its nutritional value, and many people simply find the stuff revolting.