Seko S.A. engages in the processing and sale of fish products. It offers fishes, pastes, salads, canned fishes, mini fishes, ready meals, and frozen products; Greek cod and round'n'round herring products; and vinegar and oil pickles, fillets, roast products with marinade or sauce, galantines, herring-based and vegetable salads, and sandwich spreads. The company also provides products in aluminum foil containers. It operates in Poland, Germany, the Czech Republic, Slovakia, England, Ireland, Romania, Italy, France, and Lithuania. The company was founded in 1992 and is based in Chojnice, Poland. Seko S.A. is a subsidiary of Zlota Rybka Sp. Z.o.o.