Hydrosubsidium

Hydrosubsidium is an European corporation that specializes in pioneering underwater technologies. After the Mob Wars, it invested in redeveloping Charter Hill, where it has its administrative offices, making it one of the most pleasant areas of Night City.

History
Hydrosubsidum got its start with its release of an affordable and efficient fluid breathing system (called the Gilbear lung). After several sales of the system to different European and American salvage companies, the company became complacent, believing it could survive on the sales of one product alone. After several near-bankruptcies the company was forced to branch out into other underwater technologies.

Eight years after the invention of the Gilbear system, Hydrosubsidium had three innovative underwater technologies on the market: the Poseidon Fluid Breathing Suit, capable of reaching depths up to 1000 ft. below sea level; the Sinclair submersible (infamous for making the "rape of the Titanic" possible), and the Davidson rebreather. After sales of the rebreather to several navies, the company had the income to enter into full scale production of many of their ground-breaking inventions. If any significant advancement is made in the realm of aquatic technology it is a good bet that the Hydrosubsidium is behind it.

Although Hydrosubsidium could be called a major corporation, and probably should be ranked among the giants like Arasaka and Zetatech, it prefers to keep a low profile. It redeveloped the Charter Hill area once the 2009-2011 Mob Wars finished, making it one of the most pleasant areas sections of the city with the help of the glamour and wealth of the neighboring Hacienda Casino. While the outsides of Hydrosubsidium offices in the area look like a simple warehouse, the inside is an oceanographer's dream: decorated with maps and charts of the ocean that dated back to the time of Columbus, the main lobby even has a 3D hologram map of the bottom of Del Coronado Bay.

During the 2020s, the company opened a research facility on San Morro Bay, and was known to be conducting secretive operations in the Del Coronado Trench further west.