Kalleo Technologies Ranked 219 Among Top 501 Managed Service Providers by Penton Technology’s MSPmentor – 9th Annual MSP 501 Ranking and Study Identifies World’s Most Progressive MSPs in Information Technology Kalleo Technologies ranks among the world’s most progressive 501 Managed Service Providers (MSPs), according to Penton Technology’s 9th-annual MSP 501 list and study. The top MSP 501