Direxion also provides a large suite of leveraged funds that cover U.S. and global equities, along with some Treasury bonds.
ETRACS offers a few leveraged exchange-traded notes.
FactorShares offers some unique strategies on leveraged long/short ETFs that hold a leveraged long position in one asset and shorts the assets of another, which helps the funds capitalize on the spread between the two assets.
Invesco PowerShares has issued a couple of leveraged Treasury-related ETNs.
Rydex has a leveraged/inverse S&P 500 ETF.
VelocityShares provides leveraged short- and medium-term VIX ETFs.
Disclaimer: Tom Lydon is a board member of Rydex|SGI.