Institutional Investors own a large share of publicly traded companies, controlling a significant amount of the economy‟s working capital. These investors currently use little or no sustainability-related information to make their decisions, reinforcing a loop of increasingly unsustainable growth. This paper puts forward a new investment strategy that recognizes true movement towards sustainability and its link with bottom line benefits for investors: Strategic Sustainable Investing (SSI). To achieve this desired future, Institutional Investors must be able to recognize corporations that are strategically leading the transition towards sustainability. An Analysis Tool was developed to help address this need by identifying sectoral Emerging Sustainability Issues (ESI) using a consensus-based scientific definition of sustainability. Once ESIs are identified, companies‟ strategies regarding each issue are assessed. This Tool was scrutinized by a panel of experts in the financial and sustainable development industries, and was tested on three companies within the Unconventional Oil & Gas Sector in Canada. Results confirmed the usefulness of a tool that can recognize which companies are leading the sustainable development agenda, and identified the need for future research on the financial materiality of sustainability-oriented actions.