United States · Series C startup
Funding summaryUpdated 26 Oct 2026
$199Mraised across 5 rounds since 2011, from 6 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Reported by Inc42 and 1 other
From a historical funding record
Reported by sec.govSEC filing: $2.0M sold, first sale Feb 2013
Techstars
Green Tree Ventures LLPReported by techcrunch.com
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Green Tree Ventures LLPDr. Arokiaswamy Velumani Family OfficeLTechstarsDavid Cohen
Purple
The Westly GroupWalt WinshallBullet Time Ventures IIMissing a round, or an investor who was in one? Tell us.
Simple Energy's investors include Vision Ridge Partners, Jove Equity Partners, Green Tree Ventures LLP, Dr. Arokiaswamy Velumani Family Office and Techstars, and 13 more on record. Dr. Arokiaswamy Velumani Family Office led its latest round.
Simple Energy has raised $199M across 5 rounds since 2011.
Simple Energy's most recent round was a Series C of $180M in Sept 2026, led by Dr. Arokiaswamy Velumani Family Office.
Its most recent round, $180M in Sept 2026, is also its largest on record.
Simple Energy's first round on record, in Aug 2011, was backed by Techstars, Walt Winshall and Five Mill Ventures and 5 others.
Simple Energy's latest named round is a Series C, in Sept 2026.
Simple Energy is based in the United States.
Dr. Arokiaswamy Velumani Family Office led the Series C in 2026.
In the same sector, and raised in the last eighteen months.
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United States · 
