SpaceX - Falcon 1 (completed, has launched), Falcon 9 (completed, first launch is in a month), Falcon 9 Heavy (same as Falcon 9 but with boosters), Dragon spacecraft (expected to be done within two to three years).
Virgin Galactic - SpaceShipOne/WhiteKnightOne (completed, has flown suborbital flights), SpaceShipTwo/WhiteKnightTwo (completed, finished testing, expected to start suborbital flights next year), SpaceShipThree (planned, may be low LEO or suborbital)
Bigelow Aerospace - Prototypes for BA-330 inflatable habitation module Genesis I and II (completed, launched, in orbit now), completed module expected to launch by 2012 and would be used in construction of cheap ($100M per module) commercial space stations for LEO research, space tourism, etc, with extension of ISS through 2020 it may also provide cheap module extensions to the space station.
United Launch Alliance - Merger of Lockheed Martin and Boeing, designed and operated Delta II, Delta IV and Atlas V rockets. Are currently considering the idea of man-rating the Atlas V.
Blue Origin - Single stage to suborbital altitude spacecraft 'New Shepard' in testing.
Orbital Sciences Corporation - Taurus I (completed, has launched), Taurus II (completed, has launched), Cygnus spacecraft (in development, demonstration flight planned for later this year)
SpaceDev - Dream Chaser spaceplane (in development, plans for completion by 2014) would launch on ULA man-rated Atlas V
That's all the one's I can think of off the top of my head.