| Grove City Brewing Company | 3946 Broadway | Grove City | Ohio | 43123-2623 | United States | brewpub | |
| Gypsy Brewery | 3506 Vega Ave | Cleveland | Ohio | 44113-4900 | United States | micro | |
| Hairless Hare Brewery | 738 W National Rd | Vandalia | Ohio | 45377-1015 | United States | micro | |
| Hansa Brewery | 2717 Lorain Ave | Cleveland | Ohio | 44113-3414 | United States | brewpub | |
| Hasseman Brewing | 115 S 6th St | Coshocton | Ohio | 43812-1625 | United States | micro | |
| Headtrip Brewery | 1634 Norton Rd | Stow | Ohio | 44224-1412 | United States | micro | |
| Heavier Than Air Brewing Co | 497 Miamisburg Centerville Rd | Centerville | Ohio | 45459-4753 | United States | micro | |
| Hightower Brewing Co | 3445 County Road 16 Unit B | Rayland | Ohio | 43943-7765 | United States | micro | |
| HiHO Brewing Co | 1707 Front St | Cuyahoga Falls | Ohio | 44221-4711 | United States | brewpub | |
| Hofbrauhaus Cleveland / Cincinatti Restaurant Group | 1550 Chester Ave | Cleveland | Ohio | 44114-3615 | United States | brewpub | |
| Hofbrauhaus Columbus | 800 Goodale Blvd | Columbus | Ohio | 43212-3825 | United States | brewpub | |
| Homestead Beer Co. | 811 Irving Wick Dr W | Heath | Ohio | 43056-1199 | United States | micro | |
| Hoof Hearted Brewing | 300 County Road 26 | Marengo | Ohio | 43334-9678 | United States | micro | |
| Hoof Hearted Brewing - Brewery and Kitchen | 850 N 4th St | Columbus | Ohio | 43215-1845 | United States | brewpub | |
| Hop Tree Brewing Company Ltd | 1297 Hudson Gate Dr | Hudson | Ohio | 44236-3764 | United States | brewpub | |
| Hoppin' Frog Brewing Co | 1680 E Waterloo Rd Ste F | Akron | Ohio | 44306-4523 | United States | micro | |
| Hoster Brewing Co | 760 Harmon Ave | Columbus | Ohio | 43223 | United States | contract | |
| Ignite Brewing Company, Ltd. | 600 W Tuscarawas Ave | Barberton | Ohio | 44203-2460 | United States | micro | |
| Ill Mannered Brewing Company | 38 Grace Dr | Powell | Ohio | 43065-8466 | United States | micro | |
| Inside The Five Brewing | 5703 Main St | Sylvania | Ohio | 43560-4901 | United States | brewpub | |
| Jackie O's Brewery | 25 Campbell St | Athens | Ohio | 45701-2616 | United States | micro | |
| Jackie O's Pub & Brewery | 22-24 W Union St | Athens | Ohio | 45701-2818 | United States | brewpub | |
| JAFB Brewery | 120 Beall Ave | Wooster | Ohio | 44691-3673 | United States | micro | |
| Kennedy Vineyard | 3911 State Route 722 | New Madison | Ohio | 45346 | United States | micro | |
| Kindred Beer | 750 Cross Pointe Rd Unit I and J | Columbus | Ohio | 43230 | United States | micro | |
| Knotty Pine Brewing | 1765 W 3rd Ave | Columbus | Ohio | 43212-2769 | United States | brewpub | |
| Lager Heads Brewing Co. | 325 W Smith Rd | Medina | Ohio | 44256-2352 | United States | micro | |
| Lager Heads Smokehouse | 2832 Abbeyville Rd | Medina | Ohio | 44256 | United States | brewpub | |
| Lake Rat Brewing | 108 S Main St | Celina | Ohio | 45822 | United States | brewpub | |
| Land-Grant Brewing Company | 424 W Town St | Columbus | Ohio | 43215-4040 | United States | micro | |
| Laxton Hollow Brewing Works | 302 E Main St | Mansfield | Ohio | 44904-1300 | United States | micro | |
| Levitate | | Mount Victory | Ohio | 43340-8908 | United States | planning | |
| Lil Paws Winery | 17574-A Mahoning Ave | Lake Milton | Ohio | 44429-9583 | United States | micro | |
| Lineage Brewing | 2971 N High St | Columbus | Ohio | 43202 | United States | brewpub | |
| Listermann Brewing Company | 1621 Dana Ave | Cincinnati | Ohio | 45207-1007 | United States | micro | |
| Little Fish Brewing Company | 8675 Armitage Rd | Athens | Ohio | 45701-8900 | United States | micro | |
| Little Miami Brewing Company | 208 Mill St | Milford | Ohio | 45150-1072 | United States | brewpub | |
| Lock 15 Brewing Co | | Akron | Ohio | 44304-1035 | United States | planning | |
| Lock 27 Brewing | 1035 S Main St | Centerville | Ohio | 45458-3840 | United States | brewpub | |
| Lock 27 Brewing | 329 E 1st St | Dayton | Ohio | 45402-1705 | United States | brewpub | |
| Lockport Brewery | 10891 OH-212 | Bolivar | Ohio | 44612-8664 | United States | brewpub | |
| Loose Rail Brewing | 37 W Waterloo St | Canal Winchester | Ohio | 43110-1140 | United States | micro | |
| Lucky Owl Brewing | 8660 Tamarack Trl | Chagrin Falls | Ohio | 44023-1876 | United States | micro | |
| Lucky Star Brewery | 219 S 2nd St | Miamisburg | Ohio | 45342-2924 | United States | brewpub | |
| Madcap Brew Co. | 1422 Mogadore Rd | Kent | Ohio | 44240-7536 | United States | micro | |
| MadTree Brewing | 3301 Madison Rd | Cincinnati | Ohio | 45209-1132 | United States | regional | |
| MadTree Brewing 2.0 | 5164 Kennedy Ave | Cincinnati | Ohio | 45213 | United States | regional | |
| Magic City Brewing Company | 161 2nd St NW | Barberton | Ohio | 44203 | United States | micro | |
| Main Sail Brewery / Atwood Yacht Club | 2637 Lodge Rd SW | Sherrodsville | Ohio | 44675-9719 | United States | micro | |
| Maize Valley Craft Brewery | 6193 Edison St NE | Hartville | Ohio | 44632-9326 | United States | brewpub | |