Londonstone retaining wall was originally designed and manufactured by JME in 1994. Since inception, many other landscape products and patented designs have been added to the Londonstone Family. Some of these patented products include; Londonlites, Rugged Londonstone, and Londonboulder. In addition to innovative products, Londonstone is known for its’ consistent quality and color blends. Londonstone is sold throughout Minnesota, North Dakota, South Dakota, Nebraska, Iowa, and Wisconsin.