Rochester Midland Home Rochester Midland, RMC, sustainability, health, environment, productivity, SDS, commercial, construction, education, food and beverage, food service, government, health care, hospitality, manufacturing, pulp and paper, restoration, retail, transportation Founded in 1888, Rochester Midland Corporation (RMC) is a leading manufacturer of specialty chemicals for food sanitation, industrial cleaning and water treatment as well as specialty institutional cleaning and personal care products.