In the health and life sciences industries today, a marketeer's intuition still plays a major role in assessing existing and emerging market opportunities and defining and optimizing market access strategies. Version One of the Market Access Companion (MAC – 1) will provide Big Data-driven, unbiased identification of key opinion leaders, influence networks, and early adopters who are most likely to take on novel therapeutics or medical technologies. Ultimately, MAC will enable client companies to precisely and efficiently steer sparse sales and marketing resources towards strategic prospects.