I keep seeing news stories on firms applying to be a SEF, here's the one's I've seen, send in any others and I'll add them.

1. State Street SwapEx Announcement (they also own www.swapex.com but there's nothing to see yet)
2. Bloomberg apply to be a SEF
3. TeraExchange story here: http://www.automatedtrader.net/news/at/144122/teraexchange-files-sef-application-with-cftc
4. GFI http://gfigroup.investorroom.com/2013-07-22-GFI-Group-Files-SEF-Application-With-The-CFTC
5. MarketAxess http://investor.marketaxess.com/phoenix.zhtml?c=176475&p=irol-newsArticle&ID=1837656&highlight=
6. TradeWeb http://www.tradeweb.com/News/News-Releases/Tradeweb-Applies-to-be-a-Swap-Execution-Facility-with-CFTC/

Intend to apply

• ICAP: http://www.icap.com/markets/swap-execution-facility.aspx
• CreditEx: https://www.theice.com/credit_sef_update.jhtml
• NGX (a division of Canadian TMX) http://www.ngx.com/pdf/ComplianceNoticeOct52012.pdf (PDF)