Business services sector is comprised of companies that provide ancillary services to other players in the market. Hence, the core business of one company can be a business service for another. 

Operating efficiencies demand companies to focus on functions and activities that are close to their core competence. This not only helps them to reap the benefits of economies of scale in those core functions, but also improves their competitive positioning. Importantly, this dynamic opens the door to business services companies to provide those services.