Atik Cameras – CCD cameras from Europe with a US office and dealer network http://www.atik-cameras.com

SBIG – an Aplegen Company – CCD Cameras and accessories http://www.sbig.com/

Apogee – High Performance CCD Cameras and accessories http://www.ccd.com/

QSI – Quantum Scientific Imaging – http://qsimaging.com/

Images Plus – http://www.mlunsold.com/

Stark Labs, maker of PHD Guide softare, Nebulosity and many others http://www.stark-labs.com/