What Clean Matter does

Clean Matter ApS is a Danish clean-technology company founded in 2021 and headquartered in Fuglebjerg, Zealand, that has developed and is commercializing a patented electrodialysis-based process called Power-to-P for recovering phosphorus from sewage sludge ash and biomass waste streams. The process separates phosphorus from incinerated ash using only electrical power and water, without acids or solvents, and simultaneously releases and removes heavy metals to produce a pure phosphoric acid stream that the company states is compliant with the German Sewage Sludge Ordinance and analogous regulations. A residual mineral fraction from the process is described as usable in concrete production or as a cement substitute, giving the technology a multi-product output profile. The company targets two principal customer segments: municipal and industrial wastewater treatment operators that need to recover phosphorus from incinerated sewage sludge ash under tightening EU regulation, and biogas producers seeking to valorize digestate residue through a drying, incineration, and phosphorus-recovery chain. Clean Matter operates a B2B enterprise sales motion, likely through technology licensing and equipment sales on a quote basis, and is part of a corporate group that also includes BioAqua (water treatment and purification) and Drying Matter (emissions-free sludge and biomass drying), enabling cross-entity solution delivery to shared accounts. At present, Clean Matter is a small organization of approximately 7 employees with a patent-pending core technology, no publicly disclosed revenue or funding rounds, and no named customer accounts in the input data. Its public positioning centers on regulatory alignment with EU phosphorus-recovery rules, carbon-negative process economics via renewable electricity, and the avoidance of chemical inputs — claims stated by the company rather than independently verified in the available source material. The company has received regional workplace-culture recognition via Næstved Kommune Social Pris nominations in 2024 and 2025, but no commercial milestones (pilots, LOIs, signed licenses) are documented in the input.

Name

Clean Matter

Legal name

Clean Matter ApS

Website

https://clean-matter.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Clean Matter ApS is a Danish clean-tech company that has developed a patented Power-to-P electrodialysis process to recover phosphorus from sewage sludge ash and biogas residue using only electricity and water, serving wastewater treatment operators and biogas producers across Europe.

Ownership category

akta.pro rank

Product category

Phosphorus Recovery Technology

NAICS

Sewage Treatment Facilities (221320), Phosphatic Fertilizer Manufacturing (325312), Waste Treatment and Disposal (5622)

SIC

Refuse Systems (4953), Sanitary Services (4950), Industrial Inorganic Chemicals (2810)

akta.pro primary industry

Nutrient Recovery from Sludge (Struvite, Ammonia/Phosphorus Recovery) (EUANAHAD)

akta.pro secondary industries

Anaerobic Treatment & Resource Recovery (Biogas/Co-digestion) (EUANADAH), Wastewater Treatment Plant Biogas & CHP (EUACAIAE), Waste-to-Energy (Incineration/RDF) & Landfill Gas Recovery (IMAIAFAK)

Keywords

• Phosphorus recovery technology
• Electrodialysis process
• Wastewater treatment solutions
• Biogas residue valorization
• Circular economy engineering

Headquarters

HQ city

Fuglebjerg

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Technology Licensing and Equipment Sales: Clean Matter commercializes its patented Power-to-P process technology for phosphorus recovery, likely through licensing agreements and equipment sales to wastewater treatment facilities and biogas producers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Clean Matter develops and commercializes the patented "Power-to-P" electrodialysis process technology for recovering phosphorus from sewage sludge ash and biomass waste streams using only electrical power and water without emissions. The company offers technology deployment and licensing to wastewater treatment facilities and biogas producers, producing pure phosphoric acid with heavy metal removal.

Product overview

Clean Matter offers a single core technology product called Power-to-P, which is a patented electrodialysis process for recovering phosphorus from biomass waste streams using only electrical power and water. The company operates two main application verticals: phosphorus recovery from sewage sludge incineration ash and biogas residue valorization. Clean Matter is part of a corporate group that also includes BioAqua (water treatment and purification) and Drying Matter (sludge and biomass drying solutions), allowing for complementary offerings in the circular economy and waste processing space.

Differentiator

Problem solved

Functional benefit

Products and services

• Power-to-P Patented electrodialysis-based process technology for recovering phosphorus from biomass waste streams (sewage sludge ash, biogas residue) using only electrical power and water without emissions. Designed for deployment at wastewater treatment facilities and biogas producers.
• Phosphorus Recovery from Sewage Sludge Application of Power-to-P electrodialysis technology to recover phosphorus from incinerated sewage sludge ash, producing pure phosphoric acid with effective heavy metal removal compliant with regulations such as the German Sewage Sludge Ordinance. Targeted at municipal and industrial wastewater treatment facilities.
• Biogas Residue Valorization Integrated processing chain combining drying, incineration with heat recovery, and phosphorus recovery from biogas digestate residue using Power-to-P technology. Redefines biogas residue as a raw material rather than waste subject to waste incineration laws. Targeted at biogas production facilities.

Quantifiable outcome

• Phosphorus recovery process compliant with German Sewage Sludge Ordinance
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• BioAquacoreOthersPart of the same corporate group as Clean Matter. BioAqua provides complete solutions for water treatment and purification. Operating under the same parent corporate entity, they likely share resources, customers, and go-to-market synergies.
• Drying MattercoreOthersPart of the same corporate group as Clean Matter. Drying Matter provides innovative and sustainable solutions for emissions-free drying of sludge and biomass. This creates a complementary technology chain with Clean Matter's phosphorus recovery process.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/clean-matter

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Clean Matter