Upsells are a Secret to Growing the Business Twice as Fast The top 50% of growers generate more upsell business than their slower growing competitors. The difference in growth rates becomes more pronounced as the business scales into the $15M+ in annual revenue range where upselling companies grow more than twice as fast. In the early days of the business, net new account growth is a priority for most businesses but the growth rate data and CAC data indicate that upselling existing customers is an important and underemphasized key to growth.