Rockshield Capital Corp. (Rockshield) is a Canada-based investment company. The Company's segments include Corporate, Investments, and Investment in and Advances to Associated Company. The Company focuses on investments in early-stage, high growth companies at all stages of development, including pre-initial public offering and early-stage companies requiring start-up or development capital. The Company is engaged in assisting financing, identifying acquisition targets, developing strategic plans and supporting operations, and implementing exit strategies. The Company's investments in marketable securities include common shares and other equity instruments of Canadian and the United States companies that are listed on various Canadian stock exchanges or the Over-The-Counter Bulletin Board (OTCBB) in the United States. Its marketable securities instruments are shares of companies in the mining, oil and gas, media technology and medical technology industries.