# NineDot Energy funding: rounds and investors

> NineDot Energy has raised $431M across 1 round since 2026. Investors include Citibank, Deutsche Bank and Sumitomo Mitsui Banking Corporation.

Source: https://millionrounds.com/company/ninedot-energy (Millionrounds; every figure on the page links to its filing or article)

United States · [Funded startup](https://millionrounds.com/companies)

# Who invested in *NineDot Energy*

One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Cleantech

Raised 9 months ago

Funding summary Updated 26 Oct 2026

**$431M** raised across 1 round since 2026, from 1 source

- **Latest round:** Debt, $431M Feb 2026
- **Investors:** 3

See who backed them

## The rounds

- **Feb 2026** Debt **$431M** [Citibank](https://millionrounds.com/fund/citi) [Deutsche Bank](https://millionrounds.com/fund/deutsche-bank) [Sumitomo Mitsui Banking Corporation](https://millionrounds.com/fund/sumitomo-mitsui-banking-corporation) Source recorded

## Founders and team

From NineDot Energy's own website: 2 founders, 7 on the team.

**David Arfin** CEO, Co-founder

**Nalin Kulatilaka** Chief Strategy Officer, Co-founder

- **Anthony Santamaria** Senior Vice President, Engineering & Construction
- **Fred Polirer** Senior Vice President, People & Enterprise Services
- **Giuseppe Zeppieri** Vice President, BESS Operations
- **Doug Johnsen** Chief Financial Officer
- **Emily Wheeler** Chief of Staff
- **Karen Alter** Chief Marketing Officer
- **Marissa Marco** Associate General Counsel

## Everyone who backed them

[Citibank](https://millionrounds.com/fund/citi) Growth equity **1** round

[Deutsche Bank](https://millionrounds.com/fund/deutsche-bank) Corporate VC **1** round

[Sumitomo Mitsui Banking Corporation](https://millionrounds.com/fund/sumitomo-mitsui-banking-corporation) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=ninedot-energy).

## Quick answers about NineDot Energy

### Who invested in NineDot Energy?

NineDot Energy's investors include Citibank, Deutsche Bank and Sumitomo Mitsui Banking Corporation.

### How much has NineDot Energy raised?

NineDot Energy has raised $431M across 1 round since 2026.

### When did NineDot Energy last raise?

NineDot Energy's most recent round was a Debt of $431M in Feb 2026.

### What was NineDot Energy's biggest round?

Its most recent round, $431M in Feb 2026, is also its largest on record.

### Who backed NineDot Energy first?

NineDot Energy's first round on record, in Feb 2026, was backed by Citibank, Deutsche Bank and Sumitomo Mitsui Banking Corporation.

### What stage is NineDot Energy at?

NineDot Energy's latest named round is a Debt, in Feb 2026.

### Where is NineDot Energy based?

NineDot Energy is based in the United States.

## Companies like NineDot Energy

In the same sector, and raised in the last eighteen months.

[**Amogy** $125M · Oct 2026](https://millionrounds.com/company/amogy)[**LanzaJet** $67M · Oct 2026](https://millionrounds.com/company/lanzajet)[**Pivot Energy** $500M · Oct 2026](https://millionrounds.com/company/pivot-energy)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Renew** $207M · Oct 2026](https://millionrounds.com/company/renew)[**Optivolt** $37M · Oct 2026](https://millionrounds.com/company/optivolt)

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