S. Rosen's, a brand of Alpha Baking Company, Inc., is a renowned bakery with a rich history and a wide range of high-quality products. Established in 1979, Alpha Baking acquired S.

Rosen's Baking Company, a Chicago staple known for its Jewish hearth rye breads and variety rolls since 1909. Along with this acquisition, Alpha Baking has grown over the years through additional acquisitions and expansions. S.

Rosen's serves various markets, including the fresh market, where they offer direct store delivery service in central and southern Wisconsin, northern Illinois, and northwestern Indiana. Their products are not only found in national and independent grocery stores but also in national restaurant chains, quick-service restaurants, schools, institutions, major league sports franchises, and even hot dog stands, where over 90% of Chicago-area stands use their famous Mary Ann poppy seed hot dog buns! For customers outside their fresh market distribution, S. Rosen's provides frozen and par-baked bakery programs, ensuring the same fresh daily taste, quality, and consistency.

Additionally, S. Rosen's has retail brands that include S. Rosen’s, Mary Ann, and Natural.

With a commitment to excellence and a wide product range, S. Rosen's continues to be a trusted choice for delicious bakery items