# Puraffinity: Environmental services, London, United Kingdom

> Puraffinity: Puraffinity is a London-based technology company founded in 2015 as a spinout from Imperial College London. Based in London, United Kingdom.

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

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

# Puraffinity

Puraffinity is a London-based technology company founded in 2015 as a spinout from Imperial College London.

Funding reported Last round: Series A

Environmental services London, United Kingdom

Company summary

- **Founded:** 2015 11 years old
- **Team:** 42 11 to 50 people
- **Funding reported:** 34.8M as listed, currency not stated
- **Last round:** Series A Sept 2024

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for Puraffinity has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About Puraffinity

Puraffinity is a London-based technology company founded in 2015 as a spinout from Imperial College London.

The company specializes in developing precision adsorbent media designed to remove PFAS (per- and polyfluoroalkyl substances) and other emerging contaminants from water and wastewater. Their flagship product, Puratech, is a bio-based, granular adsorbent media that selectively captures micro-pollutants, offering a sustainable solution for water treatment. Puraffinity serves a variety of sectors, including residential, commercial, industrial, municipal, and environmental services. Their technology supports applications such as residential and commercial water filters, municipal drinking water treatment, groundwater remediation, and industrial manufacturing processes. With a mission to deliver innovative water treatment technologies, Puraffinity aims to help clients meet stringent wastewater regulations while protecting environmental and human health.

## What company datasets say Puraffinity raised

Funding, as reported

Reported in all **34.8M** in the source's currency

Rounds **7**

Last round **Series A**

Last round size **8.8M**

Last round date **Sept 2024**

Investors listed **5**

## Funding filed with regulators

Puraffinity filed 5 raises, $25M in all. Filings say how much was sold and to how many investors; they never name the investors.

- Mar 2026 **$2.5M** UK share allotment
- Jan 2026 **Amount not stated** UK share allotment
- Jul 2024 **$8.7M** UK share allotment
- Aug 2023 **$893K** UK share allotment
- Jun 2023 **$13M** UK share allotment

## On 2 portfolio pages

Investors who name them

- [HG Ventures](https://millionrounds.com/fund/hg-ventures)
- [The Heritage Group Accelerator](https://millionrounds.com/fund/the-heritage-group-accelerator)

Each firm lists Puraffinity on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

## The company, in detail

What they build

Known for

water treatment systems water utilities municipal water systems environmental technology manufacturing carbon footprint reduction adsorbent materials regeneration capabilities industrial wastewater environmental remediation pfas in firefighting academies pfas environmental impact environmental services sustainability water safety standards pfas in military sites

Built with from their website

Google Cloud Apple Business Manager Google Cloud Hosting React Microsoft Exchange Microsoft 365 Apps & Services HiBob Wix Microsoft Exchange Online Microsoft 365

+4 more

Google Cloud DNS Outlook Microsoft Email Providers Apple School Manager

- **Sector:** Environmental services
- **Industry code:** NAICS 32551, 325998, 541715, SIC 3631, 2899, 8731
- **Region:** England

## Environmental services in United Kingdom

Startups like it

- [**Plastic Energy** London · founded 2011](https://millionrounds.com/startup/plastic-energy)
- [**Recycling Lives Services** Preston · founded 2003](https://millionrounds.com/startup/recycling-lives-services)
- [**Olio • Share More, Waste Less** London · founded 2016](https://millionrounds.com/startup/olio-share-more-waste-less)
- [**Nattergal Ltd** founded 2021](https://millionrounds.com/startup/nattergal-ltd)
- [**Dendra** Oxford · founded 2014](https://millionrounds.com/startup/dendra)
- [**RED Industries** Burntwood · founded 2006](https://millionrounds.com/startup/red-industries)
- [**Mission Zero Technologies** London · founded 2020](https://millionrounds.com/startup/mission-zero-technologies)
- [**Natural World Products** Belfast · founded 1989](https://millionrounds.com/startup/natural-world-products)

## Is this your company?

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