Investment and consulting firm Cleantech Group wants to connect companies interested in clean technologies with service providers who are up to the task. Companies can post requests for proposals (RFPs) for services or products, and Cleantech will screen the companies on the other end who can apply to fill the needs.

WalMart is the first company to work with Accelerator. WalMart is looking for companies with sustainable practices in waste disposal as well as wind and water projects.

The company is also expanding its investment arm into India. Top venture capitalist Vinod Khosla will be the Chair of the new India group. According to the company clean tech investment in India increased 58% last year to total of $210 million.

India's economy is booming with clean technology and automotive industries such as Tata Motors ready to increase exports to the U.S.