Private equity firm London Bay Capital Partners, which acquired a control stake in early 2008 for $130 million, has retained Greenhill & Co. (GHL) to manage the process. Plainfield Asset Management also is a Selling Source shareholder, having provided both equity and debt financing to support the 2008 transaction.

At the time, Las Vegas-based Selling Source reported more than $125 million of annual revenue. Today, I’m told that the figure is approximately $250 million.

I’ve reached out to Selling Source and London Bay, but have not heard back. Will update this post if they reply.