Apple Tree Partners (ATP) is a venture capital firm that invests in pharmaceuticals, biotech, medtech and healthcare services. Founded in 1999, with a history of well-known successes, ATP closed their current capital pool of $1.5 billion in 2012 and is actively funding healthcare innovation. They help start companies or invest in existing companies with commitments as high as $250 million. The company is headquartered in New York City with an additional office in Los Altos, CA.