A new commercial launch contender, Platforms International Corporation, has just put out a press release announcing their new space division. It was mentioned in Yahoo's Business Wire:

TITLE: "Platforms International Opens Space Division, Orders Launch Hardware"

http://biz.yahoo.com/bw/980303/platforms__1.html

The company's home page is:

http://www.platforms-intl.com/

Computer renderings of their launch vehicle are shown here:

http://www.platforms-intl.com/space_index.html

Since this company specializes in developing aircraft hardware, it should not take much time for them to start building a vehicle.