 NORWALK, Conn.--BUSINESS WIRE--Datto Holding Corp. Datto NYSE: MSP, the leading global provider of cloud-based software and technology solutions purpose-built for delivery by managed service providers MSPs, today announced its financial results for the third-quarter ended September 30, 2020. We are pleased to report strong third-quarter 2020 results as a newly public company. Both subscription revenue and ARR grew 17 percent year-over-year driven by expansion from existing managed se 