Suprafilt

What Suprafilt does

Suprafilt Limited, founded in 1995 and headquartered in Rawtenstall, Lancashire, is a UK-based designer, manufacturer, and installer of aeration systems for the wastewater treatment sector. Originally formed as a joint venture between German firm Suprafilt GmbH and Coates Engineering, the company underwent a management buyout in 2001 and operated as an independent specialist contractor until its April 2024 acquisition by Aerzen Machines Limited, a subsidiary of the German-engineered Aerzener Maschinenfabrik GmbH. The company has since retained its brand identity while gaining access to Aerzen's network of over 50 global subsidiaries.

The company's core offering is a turnkey fine bubble aeration system that encompasses design, fabrication, supply, and installation of blowers, diffusers (disc, tube, and plate in 9"/12" and 0.1m²/0.2m² formats), stainless steel pipework, pressure vessels, retrievable liftable grids, mixers, and oxidation ditch systems. Suprafilt is the UK market leader for installation of Royal HaskoningDHV's patented Nereda technology, which uses aerobic granular biomass for compact, chemical-free wastewater treatment. Its product portfolio features proprietary PTFE-coated membranes for fouling resistance in challenging applications such as calcium carbonate environments, and DfMA off-site pre-assembly that reportedly cuts site labor by up to 50%.

Suprafilt operates a project-based B2B sales model with contract values ranging from £58,000 to £2.2 million. The company is a framework supplier to Yorkshire Water and Thames Water for the AMP7 regulatory period and works as a specialist subcontractor to tier-1 contractors including Laing O'Rourke, JN Bentley, Morgan Sindall, AECOM, C2V Plus, and Black & Veatch. Its customer base spans major UK water utilities (United Utilities, Severn Trent Water, Anglian Water) and industrial sites in brewing, dairy, food processing, paper manufacturing, beverage production, and university research. Headcount stood at 28 employees as of 2024, and the company generates revenue exclusively from the UK market.

Name

Suprafilt

Legal name

Suprafilt Limited

Website

https://suprafilt.com

Company type

Private

Founded year

1995

Operating status

Acquired

Headcount range

11–50 employees

Short description

Suprafilt, founded in 1995 in Lancashire UK, designs, manufactures, and installs wastewater aeration systems. It serves major UK water utilities and industrial clients as a leading Nereda technology installer and framework supplier to Yorkshire Water and Thames Water.

Ownership category

akta.pro rank

Product category

Wastewater Treatment Equipment

NAICS

Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914)

SIC

Pumps & Pumping Equipment (3561)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industry

Decentralized/Package Wastewater Systems (Small/Remote) (EUANADAE)

Keywords

• Wastewater aeration systems
• Fine bubble diffusers
• Nereda installation services
• Water treatment equipment
• Liftable aeration grids

Headquarters

HQ city

Rawtenstall

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aeration System Projects: Design, manufacture, and installation of complete aeration systems including blowers, valves, diffusers, pipework, and commissioning. Projects range from £58,000 to over £2 million. Revenue is project-based with multi-month delivery cycles.
2. Equipment Supply: Supply of aeration components including diffusers (disc, tube, plate), pipework, pressure vessels, and replacement membranes for all brands of diffuser equipment.
3. Nereda Internals Installation: Specialist installation services for Nereda wastewater treatment technology internals, positioning Suprafilt as the UK market leader for this specific technology.
4. Retrofit and Maintenance: Replacement of aging aeration systems and upgrade services, including membrane replacement and system refurbishment to restore energy efficiency.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Suprafilt designs, manufactures, and installs fine bubble aeration systems for wastewater treatment, including complete fixed and liftable aeration systems, disc/tube/plate diffusers, stainless steel pipework and pressure vessels, mixers, blowers, and specialist internal systems for Royal HaskoningDHV's patented Nereda wastewater treatment technology. The company serves UK water utilities and industrial clients through framework agreements and subcontractor relationships with major contractors.

Product overview

Suprafilt offers a comprehensive portfolio of wastewater aeration products and services. The core offering is Complete Aeration Solutions encompassing design, supply, installation and commissioning of complete fixed and liftable fine bubble aeration systems. These integrate with complementary products including stainless steel fabrication (pipework and pressure vessels), high-efficiency diffusers (disc, tube, and plate types in various membrane materials), retrievable Liftable Grids, Mixers, Blowers, and Oxidation Ditch Solutions. The company also specializes in Nereda Internals for Royal HaskoningDHV's patented granular biomass wastewater treatment technology. All components are designed to work together as a complete package solution with compatible products.

Differentiator

Problem solved

Functional benefit

Products and services

• Complete Aeration Solutions Design, supply, installation and commissioning of complete fixed and liftable fine bubble aeration systems including blowers, valves, diffusers, instruments, airmain pipework and lagging for water utility and industrial wastewater treatment clients.
• Stainless Steel Fabrication Design and fabrication of stainless steel pipework and pressure vessels using state-of-the-art energy efficient welding machinery by skilled coded welders, purged and passivated for high quality finish.
• Disc Diffusers High efficiency fine bubble aeration disc diffusers available in 9 and 12 inch diameters with EPDM or PTFE coated membranes for optimal oxygen transfer in wastewater treatment.
• Tube Diffusers Fine bubble tube diffusers available with stainless steel or polypropylene bodies, and with EPDM or PTFE coated membranes.
• Plate Diffusers High efficiency plate diffusers available in 0.1m and 0.2 metre squared sizes with EPDM or polyurethane membranes, suited to high density installations.
• Liftable Grids Retrievable aeration grid systems enabling diffusers to be cleaned and maintained without interrupting the process or draining the tank.
• Nereda Internals Design, manufacture and installation of complete Nereda Internal systems for Royal HaskoningDHV's patented wastewater treatment technology using aerobic granular biomass. Suprafilt is the UK market leader for this technology.
• Mixers Pumps and mixers for reliable and energy efficient mixing of Anoxic Zones as well as specific tanks and storage.
• Oxidation Ditch Solutions Fixed lift and liftable grid systems for oxidation ditches, including upgrades from surface aerators with flow inducers.
• Blowers High-efficiency turbo blowers for aeration systems, including ABS turbo blowers and 316 stainless steel header pipes.

Quantifiable outcome

• 45% reduction in energy usage at Market Drayton Treatment Works
• +8 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered core and flagship.

• Royal HaskoningDHVcoreTechnology or Integration · 3 August 2020Partnership for delivery of Nereda Package Plants for small wastewater treatment works (300-10,000 population). Suprafilt provides installation and commissioning of Nereda technology alongside Eliquo Hydrok and EPS. Addresses AMP7 phosphorus consent challenges with chemical-free treatment solution.
• Eliquo HydrokcoreStrategic or Co-development Partner · 3 August 2020Joint partnership with Suprafilt and EPS for UK-wide turnkey delivery of Royal HaskoningDHV's Nereda Package Plants. Eliquo Hydrok provides expertise in sustainable wastewater treatment delivery.
• EPS WatercoreStrategic or Co-development Partner · 3 August 2020Joint partnership with Suprafilt and Eliquo Hydrok for delivery of Nereda Package Plants. EPS provides turnkey delivery including factory build, pre-testing, transport, assembly and process startup.
• Yorkshire WaterflagshipChannel Partner/ Reseller/ Distributor · 22 July 2020Framework supplier for AMP7 (Asset Management Period 7), selected as one of framework suppliers for future work after proving capabilities on previous projects. Yorkshire Water supplies and treats water for West Yorkshire, South Yorkshire, East Riding of Yorkshire, parts of North Lincolnshire, most of North Yorkshire and part of Derbyshire.
• Thames WaterflagshipChannel Partner/ Reseller/ Distributor · 22 July 2020Framework supplier for AMP7, selected earlier in 2020. Thames Water is the UK's largest water and wastewater services company, treating more than 4 billion litres of sewage daily for 15 million customers.
• University of SheffieldcoreStrategic or Co-development PartnerLong-standing research collaboration with Professor Will Zimmerman on micro bubble technology for bio ethanol production. £2.2 million research project in collaboration with three of Europe's largest ethanol producers. University collaboration helps prove competency of high efficiency diffusers.
• MSE SystemscoreChannel Partner/ Reseller/ DistributorMSE Systems acts as engineering consultant/agent bringing Suprafilt into industrial wastewater projects. Multiple collaborative projects including Konings and JE Hartley installations where MSE specifies Suprafilt for aeration solutions.
• Laing O'Rourke (LiMA)coreChannel Partner/ Reseller/ DistributorLong-standing relationship spanning nearly 20 years. Suprafilt appointed as specialist subcontractor for Nereda plant installations including Europe's largest Nereda plant at Blackburn. LiMA serves as main contractor/delivery partner for United Utilities projects.

Scale indicators7 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• SSI Aeration: Specialist manufacturer of fine-bubble aeration and mixing equipment serving industrial and municipal wastewater treatment. Directly comparable to Suprafilt because both focus on fine-bubble diffuser design, manufacturing, and supply for biological wastewater treatment.
• Eliquo Hydrok: UK/European wastewater treatment specialist delivering Nereda package plants alongside Suprafilt as part of the same Royal HaskoningDHV-led partnership. Highly comparable because both firms execute turnkey Nereda installations for UK water companies, though Eliquo Hydrok focuses on the wider process scope.
• EPS Water: UK water and wastewater treatment contractor delivering turnkey Nereda package plants under the same Royal HaskoningDHV partnership as Suprafilt. Comparable because both firms provide factory-built, installed and commissioned Nereda systems to UK water utilities.
• Aeration Industries International: US-based specialist manufacturer of aeration equipment for municipal and industrial wastewater treatment. Closely comparable to Suprafilt as a niche aeration specialist focused on diffuser and aerator systems for the wastewater sector, although its geographic focus is North America.
• Sulzer: Swiss industrial pump and process equipment manufacturer (including the ABS wastewater brand) that supplies aeration mixers, blowers and wastewater process equipment to municipal utilities. Directly comparable to Suprafilt because both target municipal wastewater aeration upgrades and compete for the same UK water-utility capital projects.

Broad incumbents

• Xylem: Global water technology major with a broad portfolio covering aeration, diffusers, pumps and treatment systems serving municipal and industrial customers. Comparable to Suprafilt because Xylem directly competes in wastewater aeration and targets the same UK water utility clients, but at vastly greater scale and with a much wider product portfolio.
• Veolia Water Technologies: Global water and wastewater treatment solutions arm of Veolia, offering aeration and biological treatment systems as part of a much broader portfolio including operations, chemicals and EPC delivery. Comparable as a competitor for large municipal wastewater upgrade contracts in the UK and Europe.

Others

• Wilo: Global pump manufacturer that has partnered with Suprafilt on combined aeration-and-pump installations such as Market Drayton. Included as an ecosystem participant because Wilo supplies complementary pumping equipment for Suprafilt's integrated aeration solutions.
• Aerzen: German parent of Suprafilt (via Aerzen Machines Limited) and world leader in rotary positive displacement machines including blowers commonly used in wastewater aeration. Included as an ecosystem participant because it is Suprafilt's strategic owner and blower supplier, shaping both capital availability and equipment integration.
• Royal HaskoningDHV: Dutch engineering consultancy and owner of the patented Nereda wastewater treatment technology that Suprafilt installs. Included as an ecosystem participant because it controls the core IP underlying Suprafilt's flagship Nereda installation business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/suprafilt-ltd

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Suprafilt