Wasp Power and Filtration Solutions

What Wasp Power and Filtration Solutions does

WASP Power and Filtration Solutions is a UK-based manufacturer of fuel conditioning, polishing, and filtration systems for stored diesel used in backup power applications. The company operates as a trading name of Separ UK Ltd (registered in England and Wales, company number 11978417), alongside sister companies Separ UK (marine filtration) and MLA Filtration, and is headquartered at St Albans in Hertfordshire with a secondary operational base in Stevenage. Its portfolio spans the W-PFS Premium range (flagship systems with touchscreen controls, BMS integration, and multi-tank support), the WB Classic and W-HL High Lift ranges, compact W10AC/W10DC units, custom-built systems, and a portfolio of add-ons including WASPnet cloud monitoring, Absolute Polishing for sub-micron filtration, automatic biocide dosing, and multi-tank changeover. Underlying technology is multi-stage filtration using filters, centrifuges, coalescers, and conditioners to remove free and emulsified water, particulates down to 2 micron (or 0.5 micron with Absolute Polishing), microbial contamination, and sludge from stored diesel.

The company's primary customer segments are mission-critical infrastructure operators — data centres, hospitals, banking and financial services, airports, and (via the Separ UK sister brand) marine operators. Commercial activity is anchored by enterprise field sales direct from UK headquarters, supplemented by an international distributor network covering 85 countries through 25 distributors; pricing is quote-based with specifications configured per tank size and cleaning requirements, and professional services (installation, commissioning, onsite servicing, spare parts) form a recurring revenue layer. The business is privately held with no disclosed institutional investment and operates from two production facilities, with a stated headcount band of 11–50 and over 200 years of combined team experience across fuel polishing and filtration.

Name

Wasp Power and Filtration Solutions

Legal name

Separ UK Ltd

Website

https://wasp-pfs.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

WASP Power and Filtration Solutions designs and manufactures fuel polishing and filtration systems for stored diesel used in backup power at data centres, hospitals, banks, airports, and marine operators, distributing through direct enterprise sales and a network spanning 85 countries.

Ownership category

akta.pro rank

Product category

Fuel Polishing and Filtration Equipment

NAICS

Pump and Compressor Manufacturing (33391), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Pumps & Pumping Equipment (3561), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Separation & Filtration Equipment (Filters, Centrifuges, Membranes) (IMAHAEAB)

Keywords

• Fuel polishing systems
• Diesel filtration equipment
• Backup generator maintenance
• Fuel conditioning units
• Microbial contamination treatment

Headquarters

HQ city

Stevenage

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Fuel Polishing Equipment Sales: Manufacture and sale of fuel polishing systems across multiple product ranges (W-HL High Lift, W-PFS Premium, WB Classic, W10AC, W10DC). One-time hardware purchase with various configurations (wall, frame, enclosure-mounted, portable).
2. Diesel Fuel Filters and Components: Sale of fuel filters including Separ Fuel Filters/Water Separators, W Range Filters (W-4, W-8, W-15, W-20, W-25, W-30, W-70100, W-70500, W-70700, W-51000), Spin On Range, and Duplex Filter Sets.
3. Professional Services: Expert knowledge from project proposal stage through design, supply, installation, commissioning and ongoing product support. Includes onsite servicing of fuel polishing systems.
4. Fuel Additives and Testing Services: Fuel test dipslides, FTR Performance fuel treatment products, and biocide products for fuel contamination treatment and prevention.
5. Spare Parts: Replacement parts and consumables for fuel polishing systems and filters through dedicated spare parts help centre.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

WASP Power and Filtration Solutions manufactures and supplies diesel fuel polishing and filtration equipment for stationary backup power applications. Its portfolio includes multi-stage fuel polishing systems (W-PFS Premium, WB Classic, W-HL High Lift, W10AC/W10DC and custom-built units), fuel filters, magnetic fuel conditioners, pumps, oil change systems, fuel additives, and the WASPnet cloud monitoring platform, supported by installation, commissioning, onsite servicing, spare parts and training.

Product overview

WASP Power and Filtration Solutions offers a comprehensive portfolio of fuel polishing and filtration products for the critical power industry. The core product lines include the premium W-PFS range (with interactive touch screen controls and BMS integration), the WB Classic range, the W-HL High Lift range, and custom-built systems. Key add-ons extend functionality including WASPnet Cloud Monitoring for remote access, Absolute Polishing for sub-micron filtration, Automatic Dosing for biocide treatment, and Multi-Tank Changeover for distributed storage. Supporting products include W Range fuel filters, magnetic fuel conditioners, oil change systems, diesel fuel pumps, and fuel testing products including dipslides and FTR Performance treatment. The company also provides sidestream filtration, enclosures, frame mounting options, and fieldbus/Modbus communications add-ons. Services include onsite servicing, spare parts support, training, and professional fuel testing.

Differentiator

Problem solved

Functional benefit

Brands

• Separ UK: Sister company operating in the marine filtration industry since the 1980s, providing Separ fuel filters and water separators.
• MLA Filtration

Products and services

• W-PFS Premium Fuel Polishing Range Flagship premium fuel polishing system range featuring multi-stage filtration, interactive colour touchscreen controls, BMS integration, multi-tank options, and automated operation. Models from W-PFS-008 through W-PFS-240 with varying flow rates. For mission-critical backup power applications.
• WB Classic Fuel Cleaning Range Classic fuel cleaning system range providing reliable fuel polishing for stored diesel applications. Includes models WB-10, WB-25, WB-40, and WB-120.
• W-HL (High Lift) Fuel Polishing Range High Lift range designed for applications requiring extended suction lift capabilities. Includes W-HL060 and W-HL120 models.
• W10AC / W10DC Compact Fuel Polishing Units Compact fuel polishing units available in AC and DC power variants for flexible installation options.
• Custom Built Fuel Cleaning Systems Bespoke fuel cleaning systems designed and built to customer specifications for unique requirements or specialised applications.
• WASPnet Cloud Monitoring Cloud-based remote monitoring add-on enabling users to track fuel quality, system status, and receive alerts from anywhere.
• WASP IPU (Intelligent Polishing Unit) New Intelligent Polishing Unit announced via 2026-03-31 press release; full product specifications and capabilities not detailed in the available source material.
• W Range Fuel Filters Complete range of diesel fuel filters including W-4, W-8, W-15, W-20, W-25, W-30, W-70100, W-70500, W-70700, and W-51000 self-clean ranges.
• Spin On Range Filters Standard spin-on fuel filter cartridges for easy replacement and maintenance.
• Duplex Filter Sets Duplex fuel filter sets for continuous filtration with changeover capability.
• Oil Change Systems Automated oil change systems enabling quick and clean oil changes across multiple equipment ports.
• Diesel Fuel Pumps Range of diesel fuel pumps for transfer and polishing applications.
• Magnetic Fuel Conditioners Magnetic fuel conditioning devices that treat fuel to improve combustion efficiency and reduce deposits.
• Fuel Test Dipslides Low-cost bacterial testing slides for detecting microbial contamination in stored fuel.
• FTR Performance Fuel Treatment Fuel treatment additive for performance enhancement and fuel system protection.
• Onsite Servicing Professional onsite servicing of fuel polishing systems including commissioning, maintenance and technical support for enterprise customers.
• Training Training services for customers and partners on fuel polishing equipment operation and maintenance.

Quantifiable outcome

• Fuel can degrade within 6-12 months becoming acidic and corrosive
• +3 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Separ UK LtdcoreOthersSepar UK Ltd is the parent/trading company for WASP PFS brand. WASP PFS operates as a trading name of Separ UK Ltd (company number 11978417). Separ UK has been a key name in the Marine Industry since the 1980s.
• MLA FiltrationcoreOthersMLA Filtration is a sister company within the Separ UK Ltd group. Referenced on WASP PFS website under related companies.
• Adler and AllanminorImplementation/ SI/ Consulting PartnerAdler and Allan provided a case study documenting fuel sampling and fixed fuel polisher installation at a data centre in London. A third-party service provider/consultancy relationship.
• International DistributorscoreChannel Partner/ Reseller/ DistributorInternational distributor network covering 85 countries with 25 distributors providing local sales and support. Distributors listed on website with contact details by region.

Scale indicators7 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Fuel Quality Services (FQS): Fuel Quality Services provides fuel polishing, filtration, testing and microbial remediation for stored diesel at data centres, hospitals and other critical-power sites in North America. Same end-market and use case as WASP, with similar recurring service + equipment offering but operating primarily in a different geography.
• Fueltec International: Fueltec International designs and manufactures fuel polishing and conditioning systems, including the Cleanfix and Fuel Filtrator product lines for standby power generators. Operates in the same niche as WASP, serving mission-critical facilities such as hospitals, data centres and infrastructure operators with comparable polishing technology and business model.
• AlgaeX International: AlgaeX (Turbo-Kleen and Bio-Kleen) provides biocide-free fuel polishing and microbial control solutions for diesel and biodiesel stored in tanks. Direct competition for WASP's automatic dosing and polishing positioning, especially where customers want biocide-free options.
• RCI Fuel: RCI Fuel specialises in fuel polishing and tank cleaning services for diesel generators, supplying both equipment and recurring service programmes. It competes for the same critical-power and backup-generator maintenance wallet as WASP PFS, particularly on recurring service contracts rather than capital sales alone.
• AXI International: AXI International is a US-based direct competitor that manufactures fuel polishing, fuel filtration, and fuel management systems for diesel backup power applications across data centres, hospitals, and military sites. Closely matches WASP PFS on product scope (multi-stage polishing, mobile/skid units, automated controls) and target verticals, making it the most directly comparable peer.

Emerging players

• Fil-Trek Corporation: Fil-Trek is a Canadian manufacturer of industrial filtration and separation equipment, including fuel/liquid polishing skids targeted at power and process industries. Smaller and more focused than Donaldson/Parker but overlaps with WASP's polishing skid and pump-set offerings for industrial and power-generation customers.

Broad incumbents

• Stanadyne: Stanadyne produces diesel fuel injection equipment and filtration/water-separation products used in OEM engines and aftermarket applications. Competes with WASP on fuel-water separation and filtration accuracy, typically at the engine and OEM tier rather than full polishing systems.
• Parker Hannifin: Parker Hannifin's Filtration Group supplies industrial fuel filtration and conditioning products, including Racor diesel filtration lines used on generators and heavy equipment. A broader incumbent competing with WASP for the same kind of mission-critical diesel filtration spend, with deeper direct OEM ties.
• Donaldson Company: Donaldson is a global filtration OEM with dedicated fuel filtration and bulk-fluid treatment product lines, including separators and polishing-style equipment for diesel engines. Overlaps with WASP in diesel fuel filtration but Donaldson is far broader (air, liquid, OEM emissions) and competes on filtration accuracy and tier-1 OEM relationships.
• Pall Corporation: Pall Corporation manufactures high-purity filtration and separation equipment across industrial fluids, including fuel and hydraulic applications. As a broad incumbent, it competes for high-precision filtration work that overlaps with WASP's sub-micron polishing variants at larger enterprise customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/wasp_pfs
• Facebookfacebook.com/WASPPFSUK
• LinkedInlinkedin.com/company/wasp-pfs

Compliance3 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 Wasp Power and Filtration Solutions