MicroSense (formerly ADE Technologies) offers non-contact capacitive position sensors featuring detection of all conductive grounded targets (with no effect from surface finish or material), high accuracy, and fast response.

New Scale Technologies offers Tracker position sensors offering direct digital output, non-contact sensing, 8mm travel with a standard 11mm linear magnet, and more.

Physik Instrumente makes capacitive sensors sub-nanometer resolution position sensors with a measuring range up to 1000 microns and a resolution to 0.01nm, bandwidth up to 10kHz, and custom designs.