Ultrablock, founded in 1992, specializes in producing the original large concrete block retaining wall system. They offer precast blocks made with standard concrete and provide sustainable options using surplus or recycled concrete. Their system is used for building gravity and MSE walls up to 50 feet high and has been widely utilized in replacing seawalls destroyed by natural disasters. Ultrablock is recognized for providing sustainable solutions for various applications beyond standard retaining walls, including material bins, tall walls, impact barriers, and blast shields.