Williston, VT– Harris Computer Systems (Harris), a subsidiary of Constellation Software Inc. (TSX: CSU) is pleased to announce that SEMCO ENERGY Gas Company, a division of SEMCO Energy, Inc. (SEMCO) has completed an agreement with Systems & Software (S&S), a wholly owned subsidiary of Harris, to upgrade to its enQuesta 4 solution. SEMCO (Port Huron, MI) went live.. read more →