The small size of the Republic's peacetime armed forces ensured that there was no megalithic military-industrial complex made up of corporations whose primary outputs were composed of military hardware and equipment. Instead, many specialized subsidiaries of larger manufacturers or software companies vied for Army and Navy contracts. Ursal Defense Industries, known more commonly as Ursal Defense, or UDI, was amongst those firms.

Founded in the waning days of the Republic's first wave of colonization, the Tasovo Mining Conglomerate is amongst the oldest mega-corporations in the Republic. TMC's rise to prominence would come about as a direct result of the mineral rich world's growing prosperity. That growth brought the many wildcat miners of Tasovo's barren plains into direct competition with the Republic's then-current industrial champion, Orvieto.

Once a dynamic and industry defining firm, Serlume Stellar Engineering, or SSE, is now a case study for the dangers of monopolies. The scientists and engineers at Serlume were the first to crack the mysteries of faster than light travel. These engines, commonly given the acronym SLE, allowed the Republic to expand its reach beyond those solar systems closest to their homeworld.

One of the pillars of Orvieto's strong industrial base, Orvieto Heavy Industries began its existence producing heavy-duty farming equipment to power the growing agricultural industry which sought to ensure the security of the Republic's food supply.

The Fulmin Propulsion Corporation, or more simply Fulmin, is a relatively young corporate entity by Umbrian standards. It was founded in 31121 by a number of disaffected engineers from Serlume Stellar Engineering, who were fed up with the bureaucratization and sclerotic decision making of their parent company.

One of the Republic's largest shipbuilding concerns, Consolidated Shipyards originated on Orvieto, in close proximity to both Umbria and Venezia, the political and financial centers of the Republic respectively. It would use this to its advantage, fighting fiercely for the first string of government contracts to build warships for the budding Umbrian Republic Navy.