| Iron Flamingo Brewery | 196 Baker St | Corning | New York | 14830-2074 | United States | micro | |
| Iron Tug Brewing | 371 Park Ave | Rochester | New York | 14607 | United States | micro | |
| Island To Island Brewery | 642 Rogers Ave | Brooklyn | New York | 11226-1502 | United States | brewpub | |
| Ithaca Beer Co | 122 Ithaca Beer Dr | Ithaca | New York | 14850-8813 | United States | regional | |
| Jamesport Farm Brewery | 5873 Sound Ave | Riverhead | New York | 11901-5611 | United States | micro | |
| Jamestown Brewing Company | | Jamestown | New York | 14701-5110 | United States | planning | |
| K2 Brothers Brewing | 1221 Empire Blvd | Rochester | New York | 14609-5946 | United States | brewpub | |
| Keegan Ales | 20 Saint James St | Kingston | New York | 12401-4534 | United States | micro | |
| Keg & Lantern Brewing Co | 97 Nassau Ave | Brooklyn | New York | 11222-3081 | United States | brewpub | |
| KelSo Beer Company | 529 Waverly Ave | Brooklyn | New York | 11238-2701 | United States | contract | |
| Keuka Brewing Co | 8572 Briglin Rd | Hammondsport | New York | 14840-9633 | United States | micro | |
| Kills Boro Brewing Company | 62 Van Duzer St | Staten Island | New York | 10301-3226 | United States | micro | |
| Kings County Brewers Collective | 381 Troutman St | Brooklyn | New York | 11237-2613 | United States | micro | |
| Kingston Standard Brewing Co. | | Kingston | New York | 12401 | United States | planning | |
| Knucklehead Craft Brewing | 426 Ridge Rd | Webster | New York | 14580-1793 | United States | brewpub | |
| Lafayette Brewing Co | 391 Washington St | Buffalo | New York | 14203-2108 | United States | brewpub | |
| Lake Drum Brewing | 16 E Castle St | Geneva | New York | 14456-2400 | United States | micro | |
| Lake George Beer Hub | 1043 State Route 9 | Queensbury | New York | 12804-1374 | United States | micro | |
| Lake Placid Pub and Brewery | 813 Mirror Lake Dr | Lake Placid | New York | 12946-3829 | United States | brewpub | |
| Ledge Hill Brewing Co | 6700 Main St | Westport | New York | 12993-2007 | United States | micro | |
| LIC Beer Project | 3928 23rd St | Long Island City | New York | 11101-4817 | United States | micro | |
| Limestone Creek Brewing Company | | Manlius | New York | 13104 | United States | planning | |
| Lincoln Hill Farm | | Canandaigua | New York | 14424-8826 | United States | planning | |
| Lineup Brewing LLC | 33 35th St Unit 6A | Brooklyn | New York | 11232-2210 | United States | micro | |
| Liquid Shoes Brewing | 26 E Market St | Corning | New York | 14830 | United States | micro | |
| Liquid State Brewing Company | 620 West Green Street | Ithaca | New York | 14850 | United States | micro | |
| Lithology Brewing | 211 Main St Ste A | Farmingdale | New York | 11735-2675 | United States | proprietor | |
| Livingood's Restaurant & Brewery | 697 Bear Swamp Rd | Peru | New York | 12972- | United States | brewpub | |
| Local 315 Brewing Company | 3160 Warners Rd | Warners | New York | 13164- | United States | micro | |
| Lock 32 Brewing Company | 10 Schoen Pl | Pittsford | New York | 14534-2026 | United States | micro | |
| Long Ireland Brewing Co | 817 Pulaski St | Riverhead | New York | 11901-3039 | United States | micro | |
| Long Lot Farm Brewery | 153 Johnson Rd | Chester | New York | 10918 | United States | micro | |
| Lost Kingdom Brewery / Firehouse Distillery | 7160 Main St | Ovid | New York | 14521-9401 | United States | micro | |
| Lucky Hare Brewing Company, Inc. | 6085 Beckhorn Road | Hector | New York | 14841 | United States | micro | |
| Lunkenheimer Craft Brewing Co. LLC | PO Box 539 8920 N Seneca St, | Weedsport | New York | 13166-0539 | United States | micro | |
| Lyonsmith Brewing Company | 138 Water St | Penn Yan | New York | 14527-1651 | United States | micro | |
| Mad Jack Brewing Co / Van Dyck Restaurant & Lounge | 237 Union St | Schenectady | New York | 12305-1405 | United States | brewpub | |
| Market Street Brewing Co | 63 W Market St # 65 | Corning | New York | 14830-2526 | United States | brewpub | |
| Mean Max Brew Works | 193 Glen St # 2 | Glens Falls | New York | 12801-3539 | United States | micro | |
| Middle Ages Brewing Co Ltd | 120 Wilkinson St Ste 3 | Syracuse | New York | 13204-2490 | United States | micro | |
| Midriver Brewery | | Cold Spring | New York | 10516 | United States | planning | |
| Mikkeller Brewing NYC | 12001 Roosevelt Ave | Flushing | New York | 11368-1653 | United States | brewpub | |
| Miles Craft Ales @ Miles Wine Cellars | 168 Randall Rd | Himrod | New York | 14842-9715 | United States | contract | |
| Mill House Brewing Company | 289 Mill St | Poughkeepsie | New York | 12601-3111 | United States | brewpub | |
| Mill House Brewing Company - Production | | Poughkeepsie | New York | 12601 | United States | micro | |
| Montauk Brewing Co | 62 S Erie Ave | Montauk | New York | 11954-5370 | United States | micro | |
| Moriches Field Brewing Company | | Center Moriches | New York | 11934-2600 | United States | planning | |
| Moustache Brewing Co | 400 Hallett Ave Ste A | Riverhead | New York | 11901-3076 | United States | micro | |
| Naked Dove Brewing Company | 4048 State Route 5 and 20 | Canandaigua | New York | 14424-9591 | United States | micro | |
| New Paltz Brewing Company | 7174 Route 209 | Wawarsing | New York | 12489 | United States | micro | |