Rijk Zwaan Zaadteelt en Zaadhandel B.V. is a Dutch vegetable breeding and seed production company headquartered in De Lier in the province of South Holland. With a market share of eight percent, Rijk Zwaan ranks among the world's top five vegetable seed companies. The family-owned company breeds over 25 different types of vegetables, including lettuce, tomato, cucumber, bell pepper and cabbage.