A true colossus of Earth's industries, OPUS operates in most sectors of the economy. Its weapons division, OPUS Armouries, is the main supplier of military hardware to the Rightful Earth Alliance. The long term relationships with the new government seems stable and profitable, so much so that OPUS has accepted to stop selling arms to non-affiliated governments.

The ominous OPUS stud has accompanied REA soldiers on hundreds of colonies, becoming itself an icon of REA forces.

Originally Earth based, Terra Tactics produced a variety of military vehicles and hardware. Faced with strong competition from OPUS Armouries, it pursued and aggressive marketing strategy off-world. When the Martian conflict escalated, REA demanded that Terra Tactics ceased all exportations towards the red planet. Terra Tactics analysts however determined that the company could not survive the market loss, so the high management decided to close its activities on Earth. The existing production plants were confiscated by the REA government.

Meanwhile Terra Tactics, thanks to the generous contracts stipulated with the MLF, saw its rebirth on Mars as Tertac.

Multicentrum is specialized in laser and magnetic rail technologies. It’s zero-g plants produce some of the purest semi-conductors used in the laser applications. The MC series laser guns is the most widely used sidearm used in off-world colonies and star-ship troops.

Multicentrum also supplies components to a great number of independent manufacturers. Its main business resides in the Cet-Ceti region.