What Siltbuster does

Siltbuster is a UK-based provider of modular and mobile water and wastewater treatment solutions, headquartered in Monmouth, Wales, and operating as a private limited company within The Workdry Group. The company designs and assembles transportable packaged treatment systems at its Welsh facility, including Dissolved Air Flotation (DAF) units, Moving Bed Biofilm Reactor (MBBR20) systems, sediment control units, and chemical dosing systems, built around a "SMART" (Standard, Modular, Agile, Responsive, Treatment) design framework that supports rapid deployment for emergency, planned maintenance, and semi-permanent use cases. Offerings range from compact units to full turnkey installations, with real-time remote monitoring and 24/7 emergency support available across the fleet.

The company serves three primary verticals: UK water utilities (trusted by major utilities and contractors for emergency treatment, planned maintenance, and network support), infrastructure and construction (sediment control, contaminant removal, and environmental compliance for major road schemes and large logistics projects), and industrial clients in food and drink, distilling, chemicals, and agriculture. Its go-to-market is enterprise field sales, with revenue generated through three streams: short- and long-term equipment hire, outright equipment purchase, and engineering services covering design, installation, commissioning, and training. Marketing is anchored on case studies via its website, LinkedIn, and YouTube, with direct phone-led inquiry conversion.

Siltbuster positions itself as the UK's largest mobile and modular water treatment rental partner with over 20 years of operating history. As part of The Workdry Group — alongside Selwood (water handling and storage), Holland Pump, Vanderkamp, and Workdry Germany — the company can bundle treatment with complementary pumps, tanks, pipework, manifolds, and control systems into integrated turnkey bids. Geographic reach covers the UK and Europe, with named enterprise engagements including Aberlour Distillery, a £2bn national logistics hub, and major UK road schemes.

Name

Siltbuster

Legal name

Siltbuster Limited

Website

https://siltbuster.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

101–250 employees

Short description

Siltbuster, part of The Workdry Group, designs, assembles, and deploys modular mobile water and wastewater treatment systems (DAF, MBBR20, sediment control, chemical dosing) for UK and European water utilities, infrastructure/construction projects, and industrial clients, available for hire, rental, or purchase with full engineering support.

Ownership category

akta.pro rank

Product category

Water Treatment Services

NAICS

Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914), Water, Sewage and Other Systems (2213)

SIC

General Industrial Machinery & Equipment (3560), Wholesale-Industrial Machinery & Equipment (5084), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

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

akta.pro secondary industries

Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK), Industrial Water Reuse Utilities (ZLD/MLD & Process Water Recycling) (EUANAGAG)

Keywords

• Water treatment solutions
• Wastewater treatment rental
• Modular treatment systems
• Sediment control equipment
• Industrial water management

Headquarters

HQ city

Monmouth

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Equipment Rental/Hire: Short and long-term rental of modular water treatment equipment. Solutions are deployed and installed by expert teams.
2. Equipment Purchase: Sale of water treatment systems including compact units to full turnkey systems.
3. Design and Installation Services: Expert engineering services including design, installation, commissioning, and training support.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Siltbuster designs, assembles, hires, and sells modular and mobile water and wastewater treatment systems for water utilities, infrastructure/construction, and industrial clients. The company delivers transportable packaged solutions—from compact units to full turnkey systems—covering sediment control, dissolved metals removal, contaminant removal, and chemical dosing, supported by expert engineering, installation, commissioning, and training services.

Product overview

Siltbuster, part of The Workdry Group, offers a portfolio of modular water treatment solutions comprising transportable packaged units for water and wastewater treatment. The core offerings include modular treatment systems (DAF, MBBR20), sediment control, and chemical dosing solutions, which can be configured from compact units to full turnkey systems. The company also provides water handling and storage solutions through sister company Selwood, including pumps, tanks, pipework, manifolds, and control systems with real-time remote monitoring. All solutions are designed and assembled in Wales and deployed across water utilities, infrastructure, and industrial sectors, available for short-term hire, long-term rental, or purchase.

Differentiator

Problem solved

Functional benefit

Products and services

• Modular Water Treatment Solutions Modular and mobile packaged water and wastewater treatment units available for short-term hire, long-term rental, or purchase, configured from compact units to full turnkey systems and backed by expert engineering, installation, commissioning, and training.
• Water Handling and Storage Solutions Engineered turnkey water handling and storage systems delivered via sister company Selwood, integrating pumps, tanks, pipework, manifolds, and control systems with real-time remote monitoring and 24/7 emergency support for sewer bypasses, network maintenance, flood response, and short-term abstraction.
• DAF (Dissolved Air Flotation) Systems Dissolved Air Flotation treatment systems for suspended solids removal and wastewater treatment, deployed as part of phased upgrade solutions such as the Aberlour Distillery project.
• MBBR20 (Moving Bed Biofilm Reactor) Systems Moving Bed Biofilm Reactor biological wastewater treatment technology offered as part of comprehensive phased wastewater upgrade solutions for industrial sites such as distilleries.
• Sediment Control Systems Modular packaged systems for sediment control and removal of suspended solids from water on construction and infrastructure sites, supporting environmental compliance during earth-moving works.
• Chemical Dosing Solutions Chemical dosing systems used in water treatment applications to ensure compliance with environmental standards across water, infrastructure, and industrial sites.

Quantifiable outcome

• Turnkey systems removing suspended solids, dissolved metals, and other contaminants
• +1 more outcomes

Named customers3 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

Feature4 records

Partnerships

One partnership is on record.

• The Workdry GroupcoreStrategic or Co-development PartnerSiltbuster is part of The Workdry Group, a group of companies including Selwood, Holland Pump, Vanderkamp, and Workdry Germany. Selwood provides complementary high-performance fleet for water handling and storage solutions, operating sewer bypasses, network maintenance, flood response, and storage systems.

Scale indicators3 records

Recent moves1 record

Expansion highlights5 records

Direct peers

• Selwood: Sister company within The Workdry Group providing pumps, tanks, pipework, and water handling/storage solutions. Directly comparable as the fleet backbone for Siltbuster's turnkey projects and a UK pump rental leader.
• Holland Pump: Sister company within The Workdry Group providing specialty pumps and water-handling solutions, with operations in the US. Comparable as a sister rental business addressing overlapping customer needs in pump-driven water management.
• Rain for Rent: US-based specialist in liquid handling, pump rental, and temporary water treatment solutions. Closely comparable business model: rental-led, modular treatment for utilities, construction, and industrial customers.

Broad incumbents

• Sunbelt Rentals (Pump & Power): Major UK and US rental company with a Pump & Power / Fluid Solutions division offering pumps, tanks, and modular water treatment. Comparable through its industrial customer base and modular water management offerings.
• United Rentals: Largest equipment rental company in the world, with a fluid solutions segment including pumps, tanks, and water treatment. Comparable for fleet scale and customer overlap in construction and infrastructure projects.
• Suez Water Technologies & Solutions: Major water services and technology provider with mobile and modular treatment capabilities alongside chemicals, digital, and O&M services. Overlaps with Siltbuster in packaged treatment and industrial water reuse solutions.
• Xylem (incl. Godwin, Wedeco): Global water technology company offering Godwin mobile pumps, Wedeco UV, and other treatment technologies. Comparable through its rental fleet and modular treatment offerings addressing similar customer pain points.
• Veolia Water Technologies: Global water and wastewater treatment giant offering modular and mobile treatment units (e.g., Mobile Water Services) as part of a much broader portfolio including O&M, chemicals, and infrastructure. Comparable for overlap in emergency and modular water treatment segments.

Emerging players

• Aquatech International: Specialises in industrial water treatment, reuse, and zero liquid discharge (ZLD) systems. Comparable for modular industrial water reuse and treatment offerings addressing similar industrial customer pain points.
• WEDA Water: European provider of mobile and modular water treatment solutions including dewatering, sedimentation, and wastewater polishing. Closely comparable in technology (DAF, lamella, sludge management) and customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/SiltbusterLtd
• LinkedInlinkedin.com/company/siltbuster-ltd
• Xx.com/siltbuster
• Facebookfacebook.com/Siltbusterltd

Revenue estimate

Valuation estimate

Number of profiles

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 Siltbuster