It was Nicehash from what I know. Ahmed did a stellar job at making sure nonone will ever use the service again too!
We don't need to buy this kind of services since we have a way more sophisticated one - our own NiceHash, now running for more than 2 years. BetaRigs was bought by Final Hash (aka Marshall Long). They were similarly incompetent with running this service as they were incompetent with running their also burned-in-flames Mintsy service. It takes significant effort, programming and system administration knowledge to run a cryptocurrency mining service, and FinalHash simply doesn't have it.
FinalHash - Marshall Long - BetaRigs - Mintsy - Cryptsy - Paul Vernon ... what more to you need. Just forget about all this shit, it is buried in the history.
Anyway, for the record: NiceHash had never any business with Betarigs.
Some references:
http://bitcoinist.net/finalhash-purchases-betarigs-will-roll-new-features-near-future/http://www.coindesk.com/digitalbtc-launches-mining-contracts-platform-digitalx-mintsy/
