What is Stem?
Headquartered in San Francisco, Stem, Inc. operates as a sophisticated provider of intelligent, renewable energy storage networks. The company distinguishes itself through the Athena platform, a robust software suite that optimizes battery hardware and provides real-time operational control for site data collection. By integrating hardware sourced from original equipment manufacturers with its proprietary software, Stem delivers comprehensive energy management services to a diverse client base, including commercial enterprises, independent power producers, and grid operators. Its market position is defined by its ability to enhance grid reliability and efficiency, effectively managing the complexities of modern energy distribution in an increasingly electrified global economy.
How much funding has Stem raised?
Stem has raised a total of $1.9B across 8 funding rounds:
Debt
$2.9M
Series A
$10.2M
Series B
$15M
Private Equity
$27M
Series C
$15M
Private Equity
$100M
Series D
$106M
Stock Offering
$1.6B
Debt (2009): $2.9M, investors not publicly disclosed
Series A (2012): $10.2M led by Greenercap and Angeleno Group
Series B (2013): $15M supported by Iberdrola, GE Ventures, and Angeleno Group
Private Equity (2015): $27M featuring Constellation Technology Ventures and Total Energy Ventures
Series C (2016): $15M backed by GE Ventures, Angeleno Group, Mithril Capital Management, Constellation, Mitsui & Co., Ltd, and Iberdrola
Private Equity (2016): $100M with participation from Starwood Capital Group
Series D (2018): $106M led by Temasek Holdings, Activate Capital, BNP Paribas, Ontario Teachers Pension Plan, and Magnesium Capital
Stock Issuance/Offering (2021): $1.6B, investors not publicly disclosed
Key Investors in Stem
Temasek Holdings
A global investment company headquartered in Singapore that acts as a generational investor with a long-term focus on sustainable growth and future-oriented technologies.
GE Ventures
The venture capital arm of General Electric, specializing in industrial and technology investments across power generation, renewable energy, and digital infrastructure sectors.
Angeleno Group
A pioneer in growth capital for clean energy and climate solutions, focusing on technologies that facilitate the transition to a low-carbon and electrified economy.
What's next for Stem?
With the support of its latest strategic financing, Stem is well-positioned to accelerate the deployment of its energy storage solutions across international markets. The company is expected to focus on scaling its Athena platform to meet the rising demand for grid-edge intelligence and sustainable infrastructure. As the global energy sector shifts toward decarbonization, Stem's ability to provide actionable data and automated control will likely remain a core competitive advantage. Future strategic initiatives will likely involve deepening partnerships with utilities and expanding its footprint in the industrial sector, ensuring that its energy storage networks remain at the forefront of the transition to a low-carbon, digitized power landscape.
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