FirstRain Ivestors

Oak Investment Partners is a multi-stage venture capital firm with a total of $8.4 billion in committed capital. The primary investment focus is on high growth opportunities in communications, information technology, internet new media, financial services information technology, healthcare services and consumer retail. Over a 28-year history, Oak has achieved a strong track record as a stage-independent investor funding more than 435 companies at key points in their lifecycle. Oak has been involved in the formation of companies, funded spinouts of operating divisions and technology assets, and provided growth equity to mid- and late-stage private businesses and to public companies through PIPE investments.

Oak has helped innovators exploit new business opportunities and anticipate trends through long-term relationships that endure the changing economic landscape. Our accomplishments can be best recognized through the success of our companies and the ability to deliver consistent performance over time.

Ampersand Ventures was organized in 1969 as an internal technology-focused venture capital investment activity at PaineWebber. Founded in 1988 as a spinoff from PaineWebber, Ampersand's differentiated strategy stepped outside of the mainstream by focusing on the Specialty Materials and Chemicals (SMC) industry and now pursues market opportunities in three other sectors: Information Technology (IT), Life Sciences, and Communications. Today, Ampersand's team of almost 20 professionals manages more than $600 million from two geographic locations: Wellesley, MA and San Diego, CA. For more information, visit www.ampersandventures.com.

Diamondhead Ventures (DhVen) focuses on early-stage Internet infrastructure and enterprise software investments spinning out of corporations and leading research universities. Diamondhead Ventures, which manages $140 million in committed capital, actively engages with portfolio companies using a hands-on consultative approach to support all areas of business operations. For more information, visit www.dhven.com.

Split Rock Partners, with offices in Minneapolis and Menlo Park, seeks emerging opportunities in healthcare, software, and Internet services primarily in the Upper Midwest and West Coast. Split Rock Partners was formed in June 2004 by the healthcare and software investment teams of St. Paul Venture Capital and continues to manage St. Paul Venture Capital's existing healthcare and software portfolio. Additional information about the firm can be found at www.splitrockpartners.com.