Pennon Group
Pennon Group plc is a UK-regulated water and wastewater utility holding company operating South West Water, Bristol Water, Bournemouth Water, and SES Water to serve approximately 4.4 million customers across South West England, Bristol, and Kent/Surrey under Ofwat regulatory oversight.
- Company typePublic
- Founded1989
- HeadquartersExeter, United Kingdom
- Headcount1,001–5,000
- GTM typeB2C
- OfferingServices
What Pennon Group does
Pennon Group plc is a UK-regulated water and wastewater utility infrastructure holding company headquartered in Exeter. Founded in 1989 and listed on the London Stock Exchange (ticker: PNN) as a FTSE 250 constituent, the group operates through wholly-owned subsidiaries South West Water, Bristol Water, Bournemouth Water, and SES Water, serving approximately 4.4 million customers across South West England, Bristol, and Kent/Surrey. The group also operates Pennon Water Services and Source4B for business water retail.
The core technology is the physical water and wastewater network infrastructure, supplemented by proprietary operational systems including the Upstream Thinking catchment management programme (covering 95% of drinking water catchments), Event Duration Monitoring on 100% of storm overflows, and the unique WaterShare+ customer ownership model that allows customers to hold shares in Pennon Group. Research capability is anchored in the CREWW joint venture with the University of Exeter, with £21M committed to AI applications, PFAs/microplastics research, and nature-based solutions. ESG credentials are industry-leading: #1 of 46 global water utilities per Sustainalytics, first-time CDP Climate A List inclusion, and longest-held Fair Tax Mark in the water sector.
The business model is fundamentally a regulated monopoly. Revenues are set by Ofwat through periodic Asset Management Plan (AMP) price reviews, with the current PR24 cycle covering 2025-2030 and providing inflation-linked returns on regulated capital value. Approximately 4.4 million residential customers plus non-household business customers generate subscription-recurring regulated revenue. Growth has been driven primarily through acquisitions (Bristol Water for £425M in 2021 and SES Water for £89M in 2024) and tariff uplifts, supported by an active capital programme including a £490M rights issue in 2025 and a £400M green bond. The 2020 divestiture of Viridor sharpened the group into a pure-play water utility.
Pennon Group firmographics
Firmographics- Name
- Pennon Group
- Legal name
- Pennon Group Plc
- Website
- https://pennon-group.co.uk
- Company type
- Public
- Founded year
- 1989
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Pennon Group plc is a UK-regulated water and wastewater utility holding company operating South West Water, Bristol Water, Bournemouth Water, and SES Water to serve approximately 4.4 million customers across South West England, Bristol, and Kent/Surrey under Ofwat regulatory oversight.
- Ownership category
- akta.pro rank
Pennon Group industry classification
Industry- Product category
- Water and Wastewater Utilities
- NAICS
- Water, Sewage and Other Systems (2213), Water Supply and Irrigation Systems (22131)
- SIC
- Water Supply (4941)
- akta.pro primary industry
- Water Supply & Wastewater Utilities Administration (BPAIACAG)
- akta.pro secondary industry
- NRW Data Management & Water Balance (IWA Methodology, GIS/SCADA Integration, Digital Twins) (EUANAKAJ)
Keywords
Where Pennon Group is headquartered
LocationHeadquarters
- HQ city
- Exeter
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
Pennon Group business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Infrastructure, Personnel
Revenue model
- Regulated Water and Wastewater Services: Revenue from regulated tariffs set by Ofwat for South West Water, Bristol Water, Bournemouth Water, and SES Water providing water and wastewater services to approximately 4.4 million customers. Revenue is determined through periodic price reviews (AMP cycles) with inflation-linked returns on regulated capital value.
- Water Retail Services: Business water retail services through Pennon Water Services and Source4B, providing water management needs for business customers in the non-household retail market opened to competition.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Household water and wastewater tariffs determined by Ofwat price determination |
| Subscription | Annual | Priority Services Register for customers needing extra support |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels7 records
Pennon Group product offering
Product offeringCore offering
Pennon Group plc is a UK environmental utility infrastructure holding company that owns and operates regional regulated water and wastewater businesses (South West Water, Bristol Water, Bournemouth Water, SES Water) serving approximately 4.4 million customers across South West England, Bristol, and parts of Surrey and Kent. The group also operates Pennon Water Services (Source4B), a business water retail service for non-household commercial customers.
Product overview
Pennon Group is a UK-based water and wastewater utility company operating a multi-brand portfolio across two core business segments: Water and Wastewater services (serving residential customers through regional brands including South West Water, Bristol Water, Bournemouth Water, and SES Water) and Water Retail Services (serving business customers through Pennon Water Services). The company also maintains WaterShare+, a customer ownership and engagement platform. Pennon Group provides water supply, wastewater treatment, and related environmental services to approximately 4.4 million customers across Cornwall, Devon, Dorset, Somerset, Bristol, Bournemouth, and Southeast England.
Differentiator
Problem solved
Functional benefit
Products and services
- South West Water Regulated water and wastewater services for Cornwall, Devon, and parts of Dorset and Somerset, providing drinking water supply, wastewater collection, and treatment to approximately 1.7 million people.
- Bristol Water Regulated water services for the Bristol region, acquired by Pennon Group for £425 million, serving approximately 1.2 million customers with potable water supply.
- Bournemouth Water Regulated water services brand operating in the Bournemouth region under the Pennon Group portfolio.
- SES Water Regulated water services for the Kent and Surrey regions, providing drinking water supply to customers in South East England.
- Pennon Water Services (Source4B) Business water retail services for non-household commercial customers, providing water management, supply, and retail services to business customers in the competitive retail market.
- WaterShare+ Unique customer ownership and engagement programme allowing Pennon Group customers to hold shares directly and participate in open customer panel meetings for accountability.
Quantifiable outcome
- 17% reduction in storm overflow spills, 25% reduction in spill duration, approximately 6,000 spills avoided in 2025/26
- +6 more outcomes
Companies that use Pennon Group
Customer profileNamed customers6 records
Segments3 records
Ideal customer profiles2 records
Pennon Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Pennon Group partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core and minor.
- University of ExetercoreCREWW (Centre for Resilience in Environment, Water and Waste) joint venture research partnership with £21 million committed capital and research investment. Academic collaboration across computer science, engineering, bioscience, and social science schools. Research themes include AI for groundwater infiltration reduction, PFAs and microplastics investigation, and nature-based solutions. Partnership dates back to 2006 with Upstream Thinking farming community programme.
- Natural EnglandcorePartnership for biodiversity initiatives, protected sites management, and species recovery. Works on river connectivity, invasive non-native species management, and ecological condition improvement across catchments.
- Environment AgencycoreRegulatory partner for environmental compliance. Supports protected sites management and species recovery initiatives. Provides specialist insight for WaterShare+ independent advisory panel.
- South West Lakes TrustminorCharitable partnerships opening access to lakes and reservoirs for health and recreational benefits to thousands of people.
- Supply Chain Sustainability SchoolminorPartner committed to upskilling supply chain and colleagues across key sustainability topics.
- Slave-Free AllianceminorMembership to develop tailored processes and controls to prevent modern slavery, providing external expertise.
- Armed Forces CovenantminorCommitment to fair treatment of the armed forces community.
- 10,000 Black Interns ProgrammeminorSix-week paid placements broadening access to professional experience for Black undergraduates and postgraduates.
- Change the Race RatiominorInitiative aligning ambitions for diverse leadership with nationally recognised standards through annual benchmarking and data disclosure.
- Water Resources West Country Water Resources GroupcoreCore member of group established in 2017 to allow improved collaboration in water resources management in the South West of England.
- Water UKminorCollaboration with Water UK on work with Government and wet wipe manufacturers to avoid non-degradable and plastic-containing wipes from being marketed as 'flushable'.
- Consumer Council for Water (CCW)coreWaterVoice accountability sessions launched across sector. Provides specialist insight for WaterShare+ independent advisory panel. Represents customer interests.
- Link Group / MUFG Corporate Markets LimitedcoreRegistrar services for share administration, dividend payments, and shareholder communications. Administer DRIP and electronic communications.
- AssetTrace+minorAsset reunification programme managed by Link Market Services to contact shareholders with unclaimed dividends over 12 months old.
- JacobscoreIndependent ESG assurance provider conducting limited assurance in accordance with ISAE 3000. Also independently audits technical (non-financial) data relating to Outcome Delivery Incentives in Annual Performance Reports.
Scale indicators20 records
Recent moves7 records
Expansion highlights5 records
Pennon Group competitors and assessment
Company assessmentDirect peers
- Severn Trent: LSE-listed FTSE 100 water and wastewater utility serving 4.5M customers across the Midlands. Direct UK water peer with the same Ofwat regulatory model, AMP-driven capex programme, and inflation-linked RCV returns as Pennon.
- United Utilities: LSE-listed FTSE 100 water and wastewater utility serving 7M customers across North West England. Closest direct peer by scale, regulatory structure, and recent AMP7/AMP8 capital investment profile.
- Anglian Water: Privately-held UK water and wastewater utility serving 4.3M customers across East England. Direct Ofwat-regulated peer comparable in customer scale and capital intensity, with similar AMP-driven investment economics.
- Northumbrian Water: UK water and wastewater utility serving 2.7M customers across North East England, owned by CK Infrastructure Holdings. Direct Ofwat-regulated peer with similar regulated RCV mechanics and AMP8 investment cycle.
- Yorkshire Water: UK water and wastewater utility serving 5M customers across Yorkshire, currently under consortium ownership. Direct Ofwat-regulated peer with comparable regulated-asset business model.
- Dwr Cymru Welsh Water: Not-for-profit Welsh water and wastewater utility serving 3M customers. Direct UK water peer with the same Ofwat-style regulatory framework, though operating under Welsh Government arrangements.
- Thames Water: Largest UK water and wastewater utility serving 15M customers across London and Thames Valley, currently in special administration. Direct Ofwat-regulated peer whose financial distress is shaping sector-wide regulatory and political dynamics relevant to all UK water companies including Pennon.
- Affinity Water: Largest UK-only water supply company serving 3.6M customers across the South East. Direct UK water peer (no wastewater) and notably the prior employer of Pennon's incoming CEO Keith Haslett, making it particularly relevant for management continuity benchmarking.
Broad incumbents
- American Water Works Company: Largest US-listed water and wastewater utility (NYSE: AWK) serving 14M+ people. Broad incumbent peer with a regulated rate-base model analogous to Ofwat's RCV framework, providing listed-equity benchmarking for Pennon's regulated returns.
- Veolia Environnement: Global environmental services group with water utility operations in multiple geographies. Broad incumbent that competes for outsourced municipal water contracts relevant to Pennon's business water retail arm (Pennon Water Services / Source4B).
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Pennon Group social profiles
Digital presencePennon Group compliance and trust
Trust signalCompliance6 records
Pennon Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Pennon Group leadership team
Management profileNumber of profiles
Profiles1 record
Pennon Group subsidiaries and ownership
Company hierarchySubsidiaries6 records
Pennon Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Pennon Group M&A and investment
M&A and investmentM&A11 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Pennon Group
What does Pennon Group do?
Pennon Group plc is a UK environmental utility infrastructure holding company that owns and operates regional regulated water and wastewater businesses (South West Water, Bristol Water, Bournemouth Water, SES Water) serving approximately 4.4 million customers across South West England, Bristol, and parts of Surrey and Kent. The group also operates Pennon Water Services (Source4B), a business water retail service for non-household commercial customers.
Is Pennon Group a public or private company?
Pennon Group is a public company. It is classified as public and is currently operating.
When was Pennon Group founded?
Pennon Group was founded in 1989. It employs 1,001 to 5,000 people.
Where is Pennon Group based?
Pennon Group is headquartered in Exeter, United Kingdom, in the Europe region.
How does Pennon Group make money?
Two revenue lines are on record. Regulated Water and Wastewater Services are the primary driver. The others are water Retail Services.
Who are Pennon Group's main competitors?
Direct peers on record are Severn Trent, United Utilities, Anglian Water, Northumbrian Water, Yorkshire Water, Dwr Cymru Welsh Water, Thames Water and Affinity Water. Broad incumbents are American Water Works Company and Veolia Environnement.
Does Pennon Group have an API?
No public API is recorded for Pennon Group.
What industry is Pennon Group in?
Pennon Group's product category is Water and Wastewater Utilities. Its primary akta.pro industry code is BPAIACAG, Water Supply & Wastewater Utilities Administration, with a secondary code of EUANAKAJ, NRW Data Management & Water Balance (IWA Methodology, GIS/SCADA Integration, Digital Twins). Its NAICS code is 2213 and its SIC code is 4941.