Oak Investment Partners

Oak Investment Partners is a multi-stage venture capital and private equity firm founded in 1978 and headquartered in Wilton, Connecticut, with an additional office in Menlo Park, California. Since its founding, the firm has invested approximately $9 billion in over 525 companies globally across twelve private equity funds, making it one of the longest-operating venture capital firms in the United States. Oak focuses on high-growth opportunities in information technology, internet and consumer, financial services technology, healthcare information and services, and clean energy sectors, with investment activity spanning company formation, spinouts, growth equity for private businesses, and PIPE investments in public companies. Typical check sizes range from $10 million to $150 million. The firm is led by managing partner Ann Lamont and maintains an active portfolio of approximately 100 companies, of which roughly 25 percent generate over $100 million in annual revenue.