Outsourcing is a common method of lower company’s costs. Businesses from this field are focused one way of activity and they are searching clients who want their services. In these days we have got many various outsourcing corporations. There are IT outsourcing firms, which secure other firm’s databeses, accounting outsourcing, maintenance outsourcing and many many others. Giant organisations are satisfied that they can employ these sort of workers, for railway firms or air transport corporations maintenance outsourcing can be a blessing.