MMT
The 6.5-meter MMT (256-inch), a joint facility operated with the University of Arizona, for solar system, galactic and extragalactic astronomy.

1.5-meter Tillinghast (60-inch) reflector telescope

1.2-meter (48-inch) reflector telescope

PAIRITEL
1.3-meter (51-inch) PAIRITEL (Peters Automated IR Imaging Telescope, ex-2MASS) reflector, for infrared observations, especially of gamma-ray bursts, supernovae and other variable sources.

10-meter optical Gamma-ray reflector telescope
Also visit VERITAS.

HAT
The HAT (Hungarian Automated Telescope) network of optical refractor telescopes, used for robotic observations of the night sky.

MEarth
MEarth is a transit survey of about 2000 nearby M-dwarf stars. It is a fully robotic system with 8 independent 0.4m-diameter reflectors that monitor these stars every night.