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Oak Investment Partners is a multistage venture capital firm and a lead investor for the next generation of disruptive growth companies.

Leaf Group
Giving the world what it wants to know.

With information and entertainment now expected to be at everyone’s fingertips, it takes a determined company to make it happen. Today, Leaf Group—with Oak’s investment and partnership—is able to reach more than 125 million visitors every month across a rich portfolio of vertical web properties.

Eliminating the void.

There are an estimated 60 million under-banked consumers in the US. Almost a decade ago, Oak recognized the value of NetSpend’s offerings and seized the opportunity to partner with us. Today, we are a leading provider of reloadable prepaid debit cards that empower these consumers with the convenience, security, and freedom to be self-banked.

A major force of change.

One of the larger problems with today’s healthcare system is a lack of transparency for costs. Castlight Health was founded in 2008 to provide individuals unbiased pricing information with which to make smart purchase decisions. With the backing of Oak, Castlight was able to significantly strengthen our solutions, enhance our team, and develop our strategy.

A foundation for connecting.

Zayo helps carriers, enterprises, schools, and hospitals keep pace with their rapidly growing need for data and Internet bandwidth. Oak’s investment has helped us grow our operations to include a fiber network that spans 218 markets and 45 states plus Washington, D.C.

Efficiency from the ground up.

At a time of a crucial acquisition in our growth story, Oak joined our investor syndicate and helped finance the acquisition in a very fast and responsive manner. Ever since, we knew we could always count on strong financial and strategic support from Oak. They have helped in shaping our international expansion plans and strategies and have been a consistently strong and supportive partner to Kayak.

Transforming financial services for a new generation.

Oak came in to invest in Wonga after having followed the business for quite some time. But once they committed to invest, it was a fast and highly efficient process. Oak truly believes in our vision of transforming the financial services industry, and they bring a differentiated set of experiences with knowledge both of the Internet as well as financial services. Oak is a partner we can always count on and trust to be on our side for the long term.

Bringing it all together.

What if there were a single, web-based platform for managing benefits? That’s the idea behind Benefitfocus, which integrates benefits in a single place for employers, carriers, and consumers. Oak recognized the growing importance and demand for a solution for shopping, enrolling, and managing healthcare benefits in the cloud.

Electric drives get traction.

With interest in hybrid and electric cars at a fever pitch, Protean Electric has developed an in-wheel electric drive system for hybrid, plug-in hybrid, and battery electric light-duty vehicles. Our partnership with Oak has enabled us to develop a system that can improve vehicle fuel economy, add torque, increase power, and enable improved vehicle handling to both new and existing vehicles.

Leading the way in outsourced services.

When Fortune 1000 companies need an integrated, global provider of business process and technology management services, they look to Sutherland. Our singular focus is to drive business performance improvements and solutions that support the entire customer lifecycle. With investment and guidance from Oak, we have grown our global operations to the point where, today, we process over 13 million customer transactions for our clients every month.

Playing an entirely new ballgame.

With the insatiable desire of sports fans all over the world to get news and information, Bleacher Report has emerged as the go-to source, delivering the Internet’s most engaging sports content experience. Oak’s partnership with the company has helped it grow to be the U.S.’s fourth-largest sports media site, reaching more than 25 million unique readers each month.

Customized financial services.

Financial institutions are always looking for ways to enable better strategy, marketing, and risk decisions. Our unique data and analytics provide just that through competitive benchmarking, scoring solutions, analytics, and customized services to major financial institutions around the world. We partnered with Oak at an important time in Argus’ history. They provided us invaluable guidance and support as we expanded our solutions and took our business to a global scale.

Deep clinical insights for managing medical payment policy.

Minimizing fraud, waste, and abuse is a substantial challenge for healthcare payer organizations. iHealth Technologies helps those payers ensure the proper and fair payment of claims. Oak has been a reliable partner in the planning and execution of our organic growth and acquisition strategy.


Internet & Consumer
Financial Services Technology
Healthcare Info Services
Information Technology
Internet & Consumer
Financial Services Technology
Healthcare Info Services
Clean Energy
Information Technology
Internet & Consumer
Financial Services Technology
Healthcare Info Services