Echelon Multistellar

Echelon is a huge private- military, law-enforcement and security contractor company that specializes in armed forces solutions. Their military operators can fill any military role. 
Echelon is the biggest private military contractor in the galaxy, and it used to be a saying that who ever could secure Echelon on their side, would win the war, some 300 years ago, but Echelon actually found that to be hurting their business, and now echelon focuses mainly on offering small support units and special operators. 
They try to stay out of larger conflicts, but are frequently employed by corporations to fight various factions that aren't political enough to be deemed a military target, or they assist governments in crushing rebellions and insurgents. 
Echelon also services various other departments of their sector, with a foot in every branch of the business, but they are mostly known for their military operations.