There are three different categories of hand-carry compressors, and over 45 models to choose from. So how do you begin the search? In the April/May issue of Fine Homebuilding (#178), I discuss the important characteristics to consider when purchasing a portable compressor and explain the differences between the three categories: hot dogs, pancakes, and twin-tanks.
There wasn't room in the article to list all the companies that manufacture compact compressors, but there is here. Check out the article; then you can home in on the models that best fit your tools, the type of work you do, and your budget.