Richard Hellmann was a German-American entrepreneur best known for founding the Hellmann's mayonnaise brand. He started his career in the early 1900s by selling his homemade mayonnaise from a small delicatessen in New York City. His product quickly gained popularity, leading to the establishment of a successful food company. In 1913, Hellmann began mass-producing his mayonnaise, which became a staple in American households. His brand is recognized for its quality and flavor, and it has remained a significant player in the condiment market. Today, Hellmann's is owned by Unilever and continues to be a favorite among consumers.