# Susteon funding: rounds and investors

> Susteon has raised $200K across 1 round since 2023. Investors include National Science Foundation, US Department of Energy and One North Carolina Small...

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

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

# Who invested in *Susteon*

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.

Climate Tech

Funding summary Updated 26 Oct 2026

**$200K** raised across 1 round since 2023, from 1 source

- **Latest round:** Grant, $200K Dec 2023
- **Investors:** 3

See who backed them

## The rounds

- **Dec 2023** Grant **$200K** [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) [One North Carolina Small Business Program](https://millionrounds.com/fund/one-north-carolina-small-business-program) Source recorded

## Founders and team

From Susteon's own website: 1 founder, 13 on the team.

**Dr. Raghubir Gupta** Co-Founder / CEO

- **Rich McGivney** Chief Financial Officer
- **Sudarshan Gupta** Chief Operating Officer
- **Arnold Chris Toppo** Process Design Engineer
- **Brian Alexander** General Counsel
- **Cynthia McPherson** Controller
- **Dr. Aravind Rayer Rabindran** Research Chemical Engineer II
- **Dr. Gordon Brezicki** Research Chemical Engineer
- **Dr. J.P. Shen** Senior Principal Scientist
- **Dr. Monica Abdallah** Research Chemical Engineer
- **Dr. Ryan Zelinsky** Research Lab Engineer
- **Gary Howe** Manager, Research Operations
- **Jonathan Peters** Senior Process Engineer
- **Quanya Smith** Office Manager

## Everyone who backed them

[National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) Government **1** round

[US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) Government **1** round

[One North Carolina Small Business Program](https://millionrounds.com/fund/one-north-carolina-small-business-program) Investment firm **1** round

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

## Quick answers about Susteon

### Who invested in Susteon?

Susteon's investors include National Science Foundation, US Department of Energy and One North Carolina Small Business Program.

### How much has Susteon raised?

Susteon has raised $200K across 1 round since 2023.

### When did Susteon last raise?

Susteon's most recent round was a Grant of $200K in Dec 2023.

### What was Susteon's biggest round?

Its most recent round, $200K in Dec 2023, is also its largest on record.

### Who backed Susteon first?

Susteon's first round on record, in Dec 2023, was backed by National Science Foundation, US Department of Energy and One North Carolina Small Business Program.

### What stage is Susteon at?

Susteon's latest named round is a Grant, in Dec 2023.

### Where is Susteon based?

Susteon is based in the United States.

## Companies like Susteon

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)[**ZwitterCo** $58M · Oct 2026](https://millionrounds.com/company/zwitterco)[**Pennsylvania American Water** $43M · Oct 2026](https://millionrounds.com/company/pennsylvania-american-water)[**Kodama** $7.0M · Oct 2026](https://millionrounds.com/company/kodama)[**Stand** $105M · Oct 2026](https://millionrounds.com/company/stand)

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