# Avantus funding: rounds and investors

> Avantus has raised $800M across 2 rounds since 2025. Investors include HSBC, Sumitomo Mitsui Banking Corporation and Rabobank. Every round with its source.

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

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

# Who invested in *Avantus*

2 rounds we have observed, with the 4 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Cleantech Energy

Raised 2 months ago

Funding summary Updated 26 Oct 2026

**$800M** raised across 2 rounds since 2025, from 2 sources

**$500M** Debt **$300M** Round

- **Latest round:** Round, $300M Sept 2026
- **Biggest round:** $500M Debt · Jun 2025
- **Investors:** 4

See who backed them

## The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

**$500M** Debt

**$300M** Round

- **First round:** Debt, $500M
- **Biggest round:** $500M
- **Between rounds:** 15 months

## The rounds

- **Sept 2026** Round **$300M** *1 new* [Truist Bank](https://millionrounds.com/fund/truist-bank) Reported by Google News search
- **Jun 2025** Debt **$500M** *3 new* [HSBC](https://millionrounds.com/fund/hsbc) [Sumitomo Mitsui Banking Corporation](https://millionrounds.com/fund/sumitomo-mitsui-banking-corporation) [Rabobank](https://millionrounds.com/fund/rabobank) Source recorded

## Founders and team

From Avantus's own website: 5 on the team.

- **Clayton Piatt** Vice President, Optimization Engineering
- **Kimika Padilla** Director, Project Finance
- **Kiran Tuniki** Director, Development Engineering
- **Ronny Clausner** Associate General Counsel
- **Seth Medina** Director, Field Operations

## Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

**Debt** 2025 **Round** 2026 [HSBC](https://millionrounds.com/fund/hsbc) [Sumitomo Mitsui Banking Corporation](https://millionrounds.com/fund/sumitomo-mitsui-banking-corporation) [Rabobank](https://millionrounds.com/fund/rabobank) [Truist Bank](https://millionrounds.com/fund/truist-bank)

## Everyone who backed them

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

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

[Rabobank](https://millionrounds.com/fund/rabobank) Corporate VC **1** round

[Truist Bank](https://millionrounds.com/fund/truist-bank) Investment firm **1** round

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

## Quick answers about Avantus

### Who invested in Avantus?

Avantus's investors include HSBC, Sumitomo Mitsui Banking Corporation, Rabobank and Truist Bank.

### How much has Avantus raised?

Avantus has raised $800M across 2 rounds since 2025.

### When did Avantus last raise?

Avantus's most recent round was an Undisclosed round of $300M in Sept 2026.

### What was Avantus's biggest round?

Avantus's largest round on record is $500M (Debt), in Jun 2025.

### Who backed Avantus first?

Avantus's first round on record, in Jun 2025, was backed by HSBC, Sumitomo Mitsui Banking Corporation and Rabobank.

### What stage is Avantus at?

Avantus's latest named round is an Undisclosed round, in Sept 2026.

### Where is Avantus based?

Avantus is based in the United States.

## Companies like Avantus

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)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Peak Energy** $163M · Oct 2026](https://millionrounds.com/company/peak-energy)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor)

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