Stem Named to the 2014 Global Cleantech 100

Company recognized as an innovator poised to impact the energy industry

Millbrae, California – October 6, 2014 — Stem, Inc., a leader in advanced energy technology, was today named to the prestigious 2014 Global Cleantech 100, produced by Cleantech Group. The Global Cleantech 100 program honors the most innovative and promising ideas in cleantech, and features the companies best positioned to solve tomorrow’s clean technology challenges.

“Over the past year, we’ve deployed our advanced storage and predictive analytics solution in major markets across the country to empower businesses to more effectively manage energy costs, and to help utilities develop new grid optimization programs,” said John Carrington, Stem CEO. “Earning a place on the Global Cleantech 100 reflects Stem’s tremendous momentum in each of these arenas, and we are grateful for this recognition.”

The Global Cleantech 100 is a comprehensive list of private companies with the highest potential to make the most significant market impact. The list is collated by combining proprietary Cleantech Group research data, with weighted qualitative judgments of hundreds of nominations, and specific inputs from a global 84-person Expert Panel. To qualify for the list, companies must be independent, for-profit, cleantech companies that are not listed on any major stock exchange.

“The Global Cleantech 100 represents the most inspiring array of entrepreneurs across the cleantech space that are at the forefront of innovation,” said Sheeraz Haji, Cleantech Group’s CEO. “It is a true honor to gather with the global cleantech community every year to recognize and celebrate the achievements of each of the top 100 companies as they continue to solve tomorrow’s energy and resource challenges and redefine sustainable innovation.”

About Stem

Stem, a leading provider of energy optimization services, combines big data, predictive analytics and energy storage to reduce electricity costs for businesses. The company’s solution requires no compromises on building occupant comfort and offers unparalleled energy insights, allowing a comprehensive view into past, present and future energy use. As demands on the grid continue to increase, Stem’s system enables good energy citizenship and unlocks the potential for expanded renewable energy integration. Headquartered in Millbrae, California, Stem is funded by a consortium of leading investors including Angeleno Group, Iberdrola (Inversiones Financieras Perseo) and GE Ventures.

About Cleantech Group

Founded in 2002, Cleantech Group’s mission is to accelerate sustainable innovation. Core to this mission is i3, an online platform that connects corporates with innovation, at scale, by allowing them to find, vet, and connect with start-ups—efficiently building an innovation pipeline. In conjunction with i3, we offer premium Advisory Services for corporates in need of expertise designing and executing strategies for sustainable innovation, and managing the pipeline created in i3. The i3 platform comes to life at our global Events, which convene corporates and start-ups, along with other players shaping the future of sustainable innovation. Cleantech Group is headquartered in San Francisco, and has offices in London and New York. For more information, visit; www.cleantech.com

Media Contact:

Zoe Fishman | Antenna for Stem

stem@antennagroup.com

415-977-1929