Blackwater, then Xe and now Academi.
Greystone is a subsidiary of Blackwater.
– Ukrainian authorities to tame Eastern regions with aid of private military company (ITAR-TASS, March 25, 2014):
Dnepropetrovsk, March 25. /ITAR-TASS/. An overseas private military company will engages in the suppressing of protest moods of the mostly Russian-speaking population in the East of Ukraine, a source at the Security Service of Ukraine said Monday
“The case in hand is Greystone Ltd. company,” he said.
The incumbent authorities in Kiev that came to power as a result of a coup believe that the Security Service branches in the eastern regions are unable to suppress the protest moods and “to neutralize” the leaders and activists of the broad pro-Russian movement here.
This opinion is maintained, among others, by the interim acting president of Ukraine, Alexander Turchinov.
“That’s why a decision has been taken to bring foreign mercenaries into the operation,” the source said. “They will perform the functions of a political secret police and a state security guard.”
The initiative to bring in mercenaries belongs to the oligarchs Igor Kolomoisky and Sergei Taruta, whom the regime in Kiev has appointed governors of the Dnepropetrovsk and Donetsk regions respectively.
“A recent meeting at Turchinov’s office examined a plan of action for suppressing the protest movements in the Eastern regions,” the source said.