L
- La Crosse Bottling Works - WI BW
- La Crosse Breweries, Inc. - WI 218
- La Grande Brewery, Julius Roesch - OR 43
- Lacakawanna Beer & Ale Corp. - PA 759
- Lake City Bottling Works - MN BW
- Landcaster Brewing Co. - OH 216
- Gehard Lang Brewery - NY 172
- F.W. Langenberg, Shullsburg Brewery - WI 466
- Lansing Brewing Co. - MI 193
- Lagunitas Brewing Co. - CA Craft
- Largay Brewing Co., Inc. - CT 62
- Latrobe Brewing Co. - PA 267
- Lauer Beverage Corp. - NY 57
- Joseph Laurer Brewing Co. - NY 57
- Lebanon Valley Brewing Co. - PA 272
- Leidiger Brewing Co. - WI 276
- J. Leinenkugel Brewing Co. - WI 67
- Jacob Leinenkugle Brewing Co. - WI 67
- Leisne & Henes Brewing Co. - MI 215
- Leisy Brewing Co. - IL 312
- I. Leisy Brewing Co. - OH 118
- Lembeck & Betz Eagle Brewing Co. - NJ 46
- Wm. J. Lemp Brewing Co. - IL 211
- Wm. J. Lemp Brewing Co. - MO 240
- Lexington Brewing Co. - KY 15
- Lexington Brewing Co. - MO 57
- Lexington St. Brewing Co. - KY 17
- Liberty Brewing Co. (Pittsburgh) - PA 671
- Liberty Brewing Co. (Tamaqua) - PA 796
- Liberty Brewing Corp. (Pittston) - PA 697
- Liebert & Obert, Inc. - PA 493
- Jos. Lieberman's Sons - PA 8
- Liebmann Breweries, Inc. - NY 119
- Linden Brewery, Inc. - NJ 309
- The Lion, Inc. - PA 849
- Lion Brewery of New York City - NY 492
- Lion Brewing Co. - NY 199
- Lock City Brewing Co. - NY 319
- Loder Brewing Co. - PA 105
- V. Loewer's Gambrinus Brewery Co. - NY 433
- Andrew Lohr Bottling Co. - IL BW
- Lone Star Brewing Co. - TX 76
- Los Angeles Brewing Co. - CA 165
- Loyalhanna Brewing Co. - PA 268
- F.C. Lucas, Castanea Brewery - PA 283
- Lucky Lager Brewing Co. - CA 315
- Chas. Lutz & Bros. - NY BW
- D. Lutz & Son Brewing Co. - PA 672
- Luzerne County Brewing Co. - PA 849
- Lykens Brewing Co. - PA 291