Circle Cardiovascular Imaging Inc. was acquired by U.S. private equity firm Thoma Bravo LP in March 2022. Founded in 2007, Circle Cardiovascular Imaging develops advanced post-processing software for the cardiac imaging industry. Circle’s product, cvi42©, is used in over 800 world leading hospitals in over 40 different countries. cvi42 is fast, comprehensive, and intuitive in its use, providing physicians with the tools to accurately diagnose complex cardiovascular diseases while improving patient outcomes and the effective utilization of healthcare resources. Incorporating deep learning and big data, time spent contouring is reduced from nearly 20 minutes to seconds; and with results in the same range as expert human readers, this further establishes Circle as the prominent resource tool for the global cardiac imaging community. Circle employs well over 100 people globally, with the majority in their Calgary headquarters. Accelerate Fund I invested in 2016.