Previously known as YesDirect, NameMedia is backed by Highland Capital Partners and Summit Partners. Over the last year, it has acquired a leading domain reseller, BuyDomains, a leading domain "parking" service, GoldKey, and dozens of smaller domain collections to create a portfolio of more than one million domain names, the world's largest.
I remember when BuyDomains portfolio held ~30,000 domain names and I used to know that, if I didn't manage to snag a domain drop it was either BD or NoName>UltS that did - and man did they ever. :(