Black+Blum was founded in London in 1998 by designers Dan Black and Martin Blum. The company began as a product design studio before developing its own range of reusable food containers. The brand produces lunch boxes, bottles, and food storage solutions that help people carry homemade meals. Many products use durable materials such as stainless steel and glass. By promoting reusable containers, Black+Blum encourages alternatives to single-use packaging. The brand also participates in the environmental initiative 1% for the Planet.