# SulNOx Group funding: rounds and investors

> SulNOx Group has raised $8.5M across 4 rounds since 2021. Every round with its source.

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

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

# Who invested in *SulNOx Group*

4 rounds we have observed, with the 0 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

Raised 6 months ago

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Funding summary Updated 15 Nov 2026

**$8.5M** raised across 4 rounds since 2021, from 4 sources

**$3.5M** Round **$1.9M** Round **$3.0M** Round **$145K** Round

- **Latest round:** Round, $145K Jun 2026
- **Biggest round:** $3.5M Round · Jul 2021
- **Investors:** 0

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.

2022 2023 2024 2025 2026

**$3.5M** Round

**$1.9M** Round

**$3.0M** Round

**$145K** Round

- **First round:** Round, $3.5M
- **Biggest round:** $3.5M
- **Usual gap between rounds:** 7 months

## The rounds

- **Jun 2026** Round **$145K** No investor was named in the report. Source recorded
- **Dec 2025** Round **$3.0M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **May 2025** Round **$1.9M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet
- **Jul 2021** Round **$3.5M** No investor was named in the report. Shares issued, filed with Companies House (SH01); no report of this raise yet

## Funding filed with regulators

SulNOx Group filed 6 raises, $8.6M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Jun 2026 **$187K** UK share allotment
- Dec 2025 **$3.0M** UK share allotment
- Jul 2025 **$262K** UK share allotment
- Jun 2025 **$1.4M** UK share allotment
- May 2025 **$252K** UK share allotment
- Jul 2021 **$3.5M** UK share allotment

## Quick answers about SulNOx Group

### How much has SulNOx Group raised?

SulNOx Group has raised $8.5M across 4 rounds since 2021.

### When did SulNOx Group last raise?

SulNOx Group's most recent round was an Undisclosed round of $145K in Jun 2026.

### What was SulNOx Group's biggest round?

SulNOx Group's largest round on record is $3.5M, in Jul 2021.

### What stage is SulNOx Group at?

SulNOx Group's latest named round is an Undisclosed round, in Jun 2026.

### Where is SulNOx Group based?

SulNOx Group is based in the United Kingdom.

## Companies like SulNOx Group

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

[**Nuada** $19M · Oct 2026](https://millionrounds.com/company/nuada)[**Go Eve** $6.1M · Oct 2026](https://millionrounds.com/company/go-eve)[**Dragonfly Advanced Materials** $2.0M · Sept 2026](https://millionrounds.com/company/dragonfly-advanced-materials)[**Metris Energy** $7.5M · Sept 2026](https://millionrounds.com/company/metris-energy)[**Myriad Wind Energy Systems** $1.8M · Sept 2026](https://millionrounds.com/company/myriad-wind-energy-systems)[**Rightcharge** $1.4M · Sept 2026](https://millionrounds.com/company/rightcharge)

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