Greenlight Networks is a fiber-optic Internet service provider in Rochester, New York, and the Buffalo Niagara Region.

The company was founded in 2011 and competes with Frontier Telephone of Rochester, Verizon Fios and Charter Spectrum.

Greenlight was founded in 2011 by Mark Murphy and began offering 1 Gigabit fiber optic internet service in 2012.

[1] The service began mostly confined to areas east of the Genesee River due to financial constraints with building new fiber optic lines particularity in Rochester's suburbs and getting permission the various towns and from Rochester Gas and Electric to use their existing poles.

[4][5] Greenlight’s website suggests the company is looking into future long-term expansion into areas such as Albany, Binghamton, Ithaca, Syracuse, and the Finger Lakes Region as well as Bridgeport, Danbury, Hartford, New Haven, and Stamford in Connecticut.