The majority of company’s greatest income comes from returning customers who have been satisfied with your product in the past. This is known as aftermarket services, or the services you provide after the product has already been bought by a costumer, including customer service, returns, repairs, warranties, and refurbishment services. It is estimated that Aftermarket Services has grown by 20% in the past six years. This article, Winning in the Aftermarket, as published in the Harvard Business Review, discusses some key points that your company will need to evaluate before offering your services. It argues that despite the opportunity that lies within aftermarket services, most companies fail in their attempt to create a suitable service. By having a great aftermarket service, your company will create loyal customers, know the best way to help those customers, and increase your profit margin.