customers? Our customers are those involved in the safe operation of escalators. That would include the major elevator maintenance companies, transit authorities, airports, department.... Does ECS Corp. service or maintain escalators? No, but we provide the necessary parts to those that do. Are you a division of any other company? No, we are a privately held... company managed by the same family since 1961. What does ECS make then? Steps, step chain, rollers, comb segments, die cast aluminum parts, and plastic parts. What about escalator steps...