NineDot Energy: Funding, Investors & Team (Oct 2026)
NineDot Energy creates innovative energy solutions that make the urban grid cleaner, more equitable, more resilient and less costly. Our current development focus is on building and operating battery storage sites in the New York City metropolitan area, including Westchester and Long Island. We are working to enable vehicle-to-grid (V2G) capabilities at our projects as well. The NineDot Energy name derives from the classic mathematical puzzle for sparking out-of-the-box solutions. Our “outside the box” creativity combines business model innovation and community-centered solutions to catalyze clean energy projects in high-value parts of the electric utility grid. Based at the NYU Tandon School of Engineering Urban Future Lab in Brooklyn, New York. We have received financial support from the U.S. Department of Energy (DOE), the New York State Energy Research and Development Agency (NYSERDA) and the Carlyle investment group, among others.
NineDot Energy has raised $797M across 6 funding rounds on record, the most recent an undisclosed round of $431M announced in Feb 2026.
That round is above the $15M median round size for Energy companies tracked on FundedIQ over the last two years.
NineDot Energy Company Profile and Key Stats
Latest funding round on record: Feb 2026.
NineDot Energy Funding Rounds
NineDot Energy raised $85.0M in an undisclosed round announced in Dec 2022.
7 months later, an undisclosed round of $1.2M was announced in Jul 2023.
1.3 years later, an undisclosed round of $40.0M was announced in Oct 2024.
3 months later, an undisclosed round of $65.0M was announced in Jan 2025.
9 months later, an undisclosed round of $175M was announced in Oct 2025.
4 months later, an undisclosed round of $431M was announced in Feb 2026.
NineDot Energy Founders and Leadership Team
Contact details for the NineDot Energy team: 2 of 2 have an email address on file.
Start 14-day free trial →NineDot Energy Funding Compared to Other Energy Startups
NineDot Energy's latest round of $431M is above the median round in Energy. Medians cover the last 24 months of disclosed rounds.
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NineDot Energy Funding FAQs
What does NineDot Energy do?
NineDot Energy creates innovative energy solutions that make the urban grid cleaner, more equitable, more resilient and less costly. Our current development focus is on building and operating battery storage sites in the New York City metropolitan area, including Westchester and Long Island. We are working to enable vehicle-to-grid (V2G) capabilities at our projects as well. The NineDot Energy name derives from the classic mathematical puzzle for sparking out-of-the-box solutions. Our “outside the box” creativity combines business model innovation and community-centered solutions to catalyze clean energy projects in high-value parts of the electric utility grid. Based at the NYU Tandon School of Engineering Urban Future Lab in Brooklyn, New York. We have received financial support from the U.S. Department of Energy (DOE), the New York State Energy Research and Development Agency (NYSERDA) and the Carlyle investment group, among others.
How much funding has NineDot Energy raised?
NineDot Energy has raised $797M across 6 rounds on record. The most recent is an undisclosed round of $431M announced in Feb 2026.
When did NineDot Energy last raise funding?
NineDot Energy's most recent funding round on record is an undisclosed round of $431M, announced in Feb 2026.
Who founded NineDot Energy?
FundedIQ lists Adam Cohen (Founder), David Arfin (Founder) at NineDot Energy.
Where is NineDot Energy headquartered?
NineDot Energy is based in Brooklyn, New York, United States.
How many employees does NineDot Energy have?
NineDot Energy is in the 51-100 employee band.
How does NineDot Energy's funding compare to other Energy startups?
NineDot Energy's latest round of $431M is above the $15M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.
About FundedIQ's NineDot Energy Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for NineDot Energy is left off this page rather than filled in.
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