ST. LOUIS--(BUSINESS WIRE)--TierPoint, a provider of cloud computing, colocation and managed services, announced today that Dennis Jesielowski has been named Chief Operating Officer (COO). Jesielowski brings over 25 years of experience driving growth and innovation for technology leading enterprises, including Hewlett-Packard, Thomson Reuters and J.P. Morgan Chase/Bank One. In the newly created COO role at TierPoint, Jesielowski will be responsible for directing, administering and coordinating