NEW YORK, January 11, 2019-- Summit Infrastructure Group, Inc. ("SummitIG" or the "Company") and SDC Capital Partners ("SDC") announced today that funds managed by SDC will acquire a majority interest in the Company. The transaction will provide SummitIG increased access to capital in support of its planned growth. Current majority owner Columbia Capital will continue to retain a material ownership stake in SummitIG following completion of the transaction. SummitIG is a leading dark fiber infrastructure provider to carriers, data center operators, content providers and large enterprises in Northern and Central Virginia.