South East Water Scientific Services

What South East Water Scientific Services does

South East Water Scientific Services is a UKAS-accredited (ISO 17025) water testing laboratory headquartered in Farnborough, Hampshire, operating as a wholly-owned subsidiary of South East Water. The company provides comprehensive microbiological and chemical analysis services — including Total Coliforms, E. coli, Cryptosporidium, Legionella, Pseudomonas, metals, nutrients, pesticides, BOD/COD, and hydrocarbons — through a state-of-the-art laboratory facility opened in 2015 and significantly expanded in June 2025. It serves water utilities (notably a major new contract with Southern Water commencing July 2025 covering drinking water testing under England and Wales regulations), local authorities, environmental consultants, residential care homes, leisure facilities (pools, hydrotherapy pools, spas), building maintenance firms, and individual private clients with private water supplies.

The business is built on a vertically integrated service platform combining proprietary analytical instrumentation — MALDI-ToF for rapid microbial identification, bacterial flow cytometry with a 96-sample autosampler, Triple Quadrupole GC/MS/MS for pesticides, automated Cryptosporidium elution stations, and TECTA-PDS automatic plate readers — with UKAS-accredited methodology, a seven-vehicle temperature-managed courier collection network covering South East England, Oxfordshire, and Wiltshire, and a 24/7 Client Portal for real-time result delivery. The laboratory carries out approximately 2 million water quality tests annually (1.3 million of which are commercial), operates 24 hours a day, 365 days a year, and meets Drinking Water Inspectorate regulatory requirements alongside BSI Inclusive Service Kitemark and Institute of Customer Service Service Mark Distinction accreditations.

Revenue is generated through bespoke transaction-fee and professional-services pricing models: quote-based contracts with 30-day invoicing terms on completion of analysis, delivered via a hybrid go-to-market combining direct account management, an online Client Portal for self-service result access and bottle ordering, and a sales-led contact team reachable by phone and email with a 48-hour response commitment. The company's competitive positioning rests on regulatory accreditation (UKAS, DWI compliance), accumulated technical expertise (100+ years of combined experience across 90-120 qualified microbiologists and chemists), and operational scale that allows it to handle enterprise-scale utility contracts.

Name

South East Water Scientific Services

Legal name

South East Water Scientific Services

Website

https://www.sewscientificservices.co.uk

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

501–1,000 employees

Short description

South East Water Scientific Services is a water testing laboratory that offers microbiology and chemistry services for commercial sectors.

Ownership category

akta.pro rank

Product category

Water Testing Laboratory Services

NAICS

Testing Laboratories and Services (54138), Testing Laboratories and Services (541380)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Laboratory Testing & Analytical Services (in-house/contract labs; microbiology, metals, organics) (EUANAJAB)

akta.pro secondary industries

Water Sampling, Testing & Laboratory Analysis (Legionella/Microbiology) (BPABAJAB), Quality Assurance/Quality Control & Accreditation (QA plans, proficiency testing, ISO/IEC 17025) (EUANAJAK), Emerging Contaminants Testing & Risk Management (PFAS, microplastics, pharmaceuticals) (EUANAJAF)

Keywords

• Water testing laboratory
• Microbiology analysis services
• Chemistry testing services
• Drinking water testing
• Legionella testing

Headquarters

HQ city

Farnborough

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Water Testing and Analysis Services: Laboratory analysis and scientific testing services for water quality. Invoice sent via email in the month following completion of analysis, payable within 30 calendar days.
2. Commercial Water Testing Contracts: Bespoke analytical services provided to a wide range of businesses including new contract with Southern Water providing drinking water testing services. Total of 1.3 million commercial tests completed each year.
3. Sampling Services: Sample containers, cool boxes, icepacks delivery and collection services. Drivers deliver and collect sample containers within 24 hours.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels5 records

Core offering

South East Water Scientific Services operates a UKAS ISO 17025 accredited water testing laboratory providing microbiology and chemistry analysis services for commercial and private sectors. The laboratory conducts approximately 2 million water quality tests annually, covering pathogens (E. coli, Coliforms, Legionella, Cryptosporidium, Pseudomonas), chemical constituents (metals, nutrients, pesticides, hydrocarbons), and sector-specific testing for pools, private water supplies, care homes, and local authorities. Services are delivered 365 days a year with results accessible through an online Client Portal, supported by an in-house courier sample collection network.

Product overview

South East Water Scientific Services operates as a single integrated water testing laboratory platform offering two primary service categories: Microbiology Services and Chemistry Services. The Microbiology Services module provides testing for Total Coliforms, E. coli, Clostridium perfringens, Enterococci, Legionella, Pseudomonas, Cryptosporidium, and other pathogens, utilizing MALDI-ToF technology for rapid identification. The Chemistry Services module encompasses Nutrients, Metals/ICP testing, BOD, COD, Pesticides, Hydrocarbons, and other organic/inorganic analyses. These core services are delivered across six sector-specific modules: Pools and Spas, Private Water Supplies, Local Authorities, Residential Care Homes, Leak Identification, and Water Treatment and Hygiene. All services are supported by a Client Portal for real-time result access, a sample submission and collection logistics network, and results certificate interpretation support. The company operates a UKAS-accredited (ISO 17025) laboratory in Farnborough, Hampshire, carrying out approximately 2 million tests annually for water companies, local authorities, and private clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Microbiology Services Comprehensive microbiological testing services covering Total Coliforms, E. coli, Clostridium perfringens, Enterococci, Legionella, Pseudomonas, Pseudomonas aeruginosa, Endoscopy Rinse Waters, and Cryptosporidium analysis. The laboratory utilizes MALDI-ToF technology for rapid and accurate microorganism identification and confirmation. Targeted at water companies, healthcare facilities, local authorities, and commercial clients requiring regulatory microbiological compliance testing.
• Chemistry Services Comprehensive chemical testing services covering Nutrients (Chloride, Alkalinity, Hardness, Nitrate, Nitrite, Ammonia, Sulphate), Metals (Iron, Manganese, Aluminium, Copper, Nickel, Lead, Sodium, Potassium, Calcium, Arsenic, Cadmium, Chromium, Selenium, Antimony, Mercury), BOD, COD, Solids, Bromate, Fluoride, Pesticides, and Hydrocarbons analysis. Delivered to commercial and regulatory clients requiring chemical compliance verification of water supplies.
• Pools and Spas Testing Water testing services for swimming pools, hydrotherapy pools, and spas aligned with PWTAG guidelines. Includes high-volume sampling for Cryptosporidium analysis, automatic notifications for sample failures, intermediate readings for Legionella, and configurable threshold alerts. Targeted at leisure facility operators, hotels, and health clubs.
• Private Water Supplies Testing Comprehensive testing services for private water supplies covering chemical and microbiological contaminants. Includes sample container provision, sampling services, temperature-managed logistics, result interpretation, and regulatory compliance comparison. Targeted at individual property owners using private water supplies, local authorities, and environmental health officers.
• Local Authorities Services Analytical testing services for local authorities including private water supplies testing, Legionella management, and environmental monitoring. Includes sampling, container delivery and collection within 24 hours, and results reporting aligned with Drinking Water Inspectorate requirements. Targeted at local government bodies and environmental health departments.
• Residential Care Homes Testing Water testing services for nursing and residential care homes covering private water supplies, environmental waters, systems waters, and waste waters. Includes Legionella management compliance testing, regular monitoring, and outbreak response support. Targeted at nursing and residential care home operators protecting vulnerable residents from waterborne pathogens.
• Leak Identification Services Analytical service supporting leak investigations by examining water composition to identify leak sources. Determines whether leak water originates from mains supply, wastewater supply, or environmental source. Provides comprehensive analytical packages for businesses, local authorities, and private clients requiring forensic water analysis.
• Water Treatment and Hygiene Services Analysis and testing services for Legionella, system waters, and private water supplies. Includes rapid result delivery, immediate sample failure alerts, intermediate readings for Legionella with automatic positive growth notifications, and configurable threshold email alerts. Targeted at building maintenance companies, facility managers, and water hygiene service providers.

Quantifiable outcome

• Nearly 2 million tests carried out each year
• +3 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Southern WatercoreStrategic or Co-development Partner · 23 May 2025South East Water secured a new contract with Southern Water to provide drinking water testing services. The partnership results in substantial expansion of facilities and 50% increase in commercial water quality tests. South East Water will undertake all testing required under drinking water regulations for England and Wales for Microbiology, Cryptosporidium and Inorganic Chemistry, including testing for E. coli and Total Coliforms. Contract commences 1 July 2025 and covers drinking water only.
• Cranfield UniversitycoreStrategic or Co-development Partner · 1 December 2018Four-year collaboration between Cranfield University and South East Water Water Quality Department, led by Dr. Neil Hudson (Head of Water Quality). SEW Scientific Services utilizes a Flow Cytometer from the institution in Bedfordshire for long-term data gathering from treatment works and reservoirs. Leïla Claveau, EngD Research Engineer at STREAM Industrial Doctorate Centre, operates the instrument to assess how bacterial flow cytometry can be used for monitoring microbiological activity.
• Royal Society of ChemistrycoreStrategic or Co-development PartnerSouth East Water Scientific Services is partnered with the Royal Society of Chemistry, demonstrating commitment to scientific excellence and professional standards in water quality analysis.
• UK Accreditation Service (UKAS)coreOthersLaboratory accredited to ISO 17025 by UKAS. Successfully passed reassessment in February 2019 for transition to updated ISO/IEC 17025:2017 standard. Accreditation schedule includes microbiology, chemistry, and recently added pesticides analysis.
• Drinking Water Inspectorate (DWI)coreOthersMeets stringent regulatory requirements of the Drinking Water Inspectorate for drinking water testing services in England and Wales.
• Pool Water Treatment Advisory Group (PWTAG)minorStrategic or Co-development PartnerPools and spas testing services align with PWTAG guidelines. Company maintains compliance with Pool Water Treatment Advisory Group standards.
• Standing Committee of Analysts (SCA)minorStrategic or Co-development PartnerSEW Scientific Services Microbiology Department, led by Marcus Bedford, hosted the biannual SCA meeting. 24 members of the Microbiology Working Group attended to discuss sampling and analysis methods for waters, effluents, sewage sludges, sediments, soils and biota.

Scale indicators10 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• ALS Global (ALS Water Testing): Global testing services group with a substantial UK water testing practice offering microbiology and chemistry services to utilities, environmental consultants, and industrial clients. Directly comparable in service portfolio (UKAS-accredited drinking water, Legionella, metals, organics) but operates at much larger scale with broader geographic reach.
• Eurofins Water Testing (Eurofins UK): One of the world's largest laboratory groups with UKAS-accredited water testing services covering drinking water, waste water, Legionella, and emerging contaminants. Comparable UK water utility client base and service mix; competes with SEW Scientific Services on accredited microbiology and chemistry panels.
• SGS Water Services: Global inspection, verification, and testing company with a UK water testing practice serving utilities, environmental consultants, and industrial clients. Comparable accredited water microbiology/chemistry service offering, but as part of a much broader TIC portfolio rather than a pure-play water lab.
• Bureau Veritas Water Testing: International TIC group offering UKAS-accredited water testing including drinking water compliance, Legionella, and environmental analysis. Comparable accredited service portfolio for water utility and commercial clients, with broader geographic and service breadth.
• Element Materials Testing (water division): Global testing group with UK water and environmental testing capabilities including microbiology, metals, and organic chemistry. Comparable accredited service offering for utilities and commercial clients, but as part of broader materials testing portfolio.

Direct peers

• Thames Water Scientific Services: In-house UK water utility laboratory providing UKAS-accredited drinking water testing for Thames Water and external clients. Closely comparable scope (microbiology, chemistry, Cryptosporidium, regulatory compliance) and same UK water utility testing model as SEW Scientific Services.
• Severn Trent Laboratories: Water utility-affiliated UK laboratory providing accredited drinking water and environmental testing. Directly comparable in service offering (microbiology, chemistry, regulatory compliance) and target customers (UK water companies, environmental consultants).
• United Utilities Scientific Services: In-house laboratory of United Utilities, one of the UK's largest water companies, providing UKAS-accredited drinking water testing services. Direct comparable in scale, scope (microbiology, chemistry, Cryptosporidium), and customer base within the UK water utility testing market.
• Wessex Water Scientific Services: Water utility laboratory providing accredited drinking water and environmental testing for Wessex Water operations. Comparable in service mix (microbiology, chemistry, regulatory compliance) and customer base (UK water utility, environmental, leisure/care home segments).

Emerging players

• Water Research Centre (WRc): UK water sector research and testing organization providing analytical services, method development, and regulatory support. Comparable in serving UK water utilities and providing accredited testing/research services, with stronger R&D and method development focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/southeastwater-scientificservices

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 South East Water Scientific Services