The latest round of financing brings the total amount raised by Sharpen to over $55 million. It follows a year when the company experienced more than 100% growth in revenue and a 40-plus% increase in new bookings, company officials said. At the same time, Sharpen was named to the 2020 Inc. 5000 list of fastest-growing private companies in America, based on a growth rate of 137% over the last three years…