Exponent Energy
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Investors
Founders
About
Exponent Energy is a Bengaluru-based electric vehicle rapid-charging startup founded in 2020 by former Ather Energy executives Arun Vinayak and Sanjay Byalal Jagannath 12. The company develops a full-stack platform combining proprietary battery packs (e^packs), charging pumps (e^pumps), and connectors (e^plugs) that together allow commercial EVs to fully charge in roughly 15 minutes using standard lithium-ion cells 12.
On June 10, 2026, Exponent Energy announced ₹200 crore (approximately $21.1 million) in a Series B2 round co-led by 360 ONE Asset and TDK Ventures, with first-time participation from Hitachi Ventures and follow-on from existing investors Eight Roads Ventures, Lightspeed, 3one4 Capital, and AdvantEdge VC; YourNest contributed $4 million through its Continuum Fund 12. The round brings total funding raised to approximately $66 million 1. Capital will fund R&D, expansion into additional commercial vehicle segments, and geographic expansion into new countries 12. The company recently launched an EV financing subsidiary, Exponent One, which raised $2 million separately 1.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-06-10 | Series B2 | ₹200 Cr | 360 ONE Asset, TDK Ventures | Hitachi Ventures, Eight Roads Ventures, Lightspeed, 3one4 Capital, AdvantEdge VC, YourNest 123 |
What Investors Say
“Exponent is solving the hard problems in commercial EV adoption through its full-stack ultra-fast charging platform spanning batteries and charging infrastructure.”
— Sumit Jain, 360 ONE Asset, in the Series B2 announcement, June 10, 2026 2
What Founders Say
“As transportation becomes electric, energy management itself becomes a technology-first problem. In EVs, electricity is already everywhere.”
— Arun Vinayak, Co-Founder and CEO of Exponent Energy, in the Series B2 announcement, June 10, 2026 1
“The first five years were about building the core technology and proving rapid charging works reliably. Exponent 2.0 is about leveraging that foundation to build a category-defining energy company for electric mobility.”
— Arun Vinayak, Co-Founder and CEO, in coverage of the Series B2, June 10, 2026 2
Sources
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“Exponent Energy raises Rs 200 crore led by 360 ONE Asset, TDK Ventures,” ViEStories, June 10, 2026, accessed June 2026. https://viestories.com/funding-alert/exponent-energy-raises-rs-200-crore-led-by-360-one-asset-tdk-ventures-12020153↩↩↩↩↩↩↩↩
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“Exponent Energy Raises ₹200 Cr To Expand Commercial EV Charging Network,” Outlook Business, June 10, 2026, accessed June 2026. https://www.outlookbusiness.com/start-up/exponent-energy-raises-200-cr-to-expand-commercial-ev-charging-network↩↩↩↩↩↩↩
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“Bengaluru-based rapid EV charging firm Exponent Energy raises ₹200 crore,” Business Standard, June 10, 2026, accessed June 2026. https://www.business-standard.com/companies/news/exponent-energy-raises-rs-200-crore-to-expand-commercial-ev-business-126061000442_1.html↩