Nordsee GmbH is a German fast-food restaurant chain specializing in seafood, with a rich history dating back to 1896. Founded in Bremen, Germany, Nordsee began as the "German Steam Fisheries Company Nordsee," aiming to provide fresh fish to inland regions. Over the years, it has evolved into Europe's leading fish restaurant chain, offering a variety of seafood dishes, including sandwiches, wraps, bowls, sushi, and salads.

With over 370 locations across Germany, Austria, and several other European countries, Nordsee operates through a combination of company-owned and franchise stores. The company emphasizes sustainability, using only quota-caught fish and avoiding artificial additives in its products. Nordsee's commitment to quality and natural ingredients has solidified its position as a trusted brand among seafood enthusiasts.