Conservas Zallo, based in Bermeo, Spain, specializes in high-quality canned fish, particularly anchovies, tuna, and bonito del norte (albacore tuna), known for their sustainability and flavor. This family-owned company, established in 1926, maintains traditional canning methods, focusing on locally sourced fish from the Cantabrian Sea to preserve authentic flavors.

Zallo is celebrated for its artisanal touch, using hand-filleting techniques and sustainable fishing practices that align with both environmental and culinary standards. Their products are popular across Europe, showcasing Spanish seafood traditions and quality.