BSF (Berliner Spezialflug) seems to be complete or nearly complete out of business. It's impossible in Europe as a german and LBA-JAA guided and pressed company to compete with russians also with operating russian helicopters. Some years ago their price was round about 3500€ would means at the moment 4375 USD per hour to get their Mi-8.
It's not the russian helicopter making the absolutely low price it's the way to operate the ship and under which circumstances.
It's also impossible to get a permission to operate newer russian ships in Germany because of the strict "NO" by the german authorities because of lacking western type certifications.
They junked more than 80 eastgerman Mi-8 after the reunification.
A lowtime ex-eastgerman Mi-8 exploded 2002 in the Pinewood Studios to bring fire in to "007"
A german project to convert very cheap ex marine Mi-14 helicopters to 4000 liters "Helitankers" also flopped because of "european problems".