Business Energy
As of 1 April 2017, the UK water market underwent its most significant reform, allowing commercial customers to choose their water retailer regardless of location.
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Businesses are now able to select from a range of retailers offering different tariffs and pricing structures, rather than being limited to a single local provider. While the regional wholesaler remains responsible for infrastructure and supply, retail services are delivered by intermediary retailers, creating a competitive marketplace.
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This change enables businesses to compare the market, negotiate improved terms, and secure more cost-effective water services. It also presents clear opportunities to improve water efficiency and better manage ongoing costs. Prior to April 2017, all water and wastewater services were provided exclusively by local water companies; today, businesses benefit from greater choice, transparency, and control.
Why switch your business water retailer?
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Businesses choose to review their water retailer to:
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Reduce overall water and wastewater costs
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Improve billing accuracy and transparency
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Consolidate multi-site accounts into a single bill
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Access better customer service and account management
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Identify water efficiency and usage improvement opportunities
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Our Process
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Our Simple Water Switching Process:
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Review – We assess your current retailer, usage, and charges
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Compare – We review the market across a wide panel of licensed retailers
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Recommend – We present clear options and explain the differences
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Switch – We manage the switch and liaise with the chosen retailer
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Support – Ongoing assistance and future renewal planning
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There is no disruption to your water supply — only a change in who bills and supports your account.
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Water efficiency & cost control
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Beyond switching retailers, the open water market presents opportunities for businesses to better understand and manage water usage. Through improved data visibility and retailer engagement, businesses can identify inefficiencies, manage costs more effectively, and plan with greater confidence.
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Nordpower Partners supports businesses in reviewing usage trends and understanding how water efficiency improvements can contribute to long-term cost control.
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Who’s who in the market?
Retail suppliers – Retail suppliers compete for the custom of all eligible business customers to sell their services and packages onto. This includes variable or fixed plans for an agreed term
Wholesalers – Appointed companies that own and operate the network of pipes, mains and treatment works. They act as the wholesalers in the market, selling water and wastewater services to retail suppliers.
Open Water – Open Water is the name given to the programme set up by UK Government to open the business retail market. The programme is led by three partner organisations – Ofwat, Defra and MOSL. Open Water shares information about the market with customers.
Defra – the Department for the Environment, Food and Rural Affairs. Ofwat is the economic regulator for the sector. We are also the licensing authority for the market. In order to compete in the market, suppliers must be awarded a licence.
Business Water Suppliers 2026
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Support sustainability - With carbon-neutral water suppliers
Wave was formed following a joint venture between Anglian Water Business and NWG Business, bringing together two established companies with solid track records in the non-household water retail market. Wave has a strong commitment to customer service and a deep understanding of the evolving water industry. They offer tailored solutions and innovative services to meet the diverse needs of their customers.
Additional services
Consolidated billing
Water efficiency service
Source for Business is the national trading brand of Pennon Water Services Ltd; a Joint Venture between Pennon Group Plc and South Staffordshire Plc; both with over 25 years' experience in the regulated water industry and currently serving 160,000 businesses nationwide
Additional services
Consolidated billing
Water efficiency service
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Business Stream is a wholly-owned subsidiary of Scottish Water. Business Stream has been formed as an arms-length company with its own Board and independent management team. Scottish Water owns and operates the country's water infrastructure, while Business Stream provides retail water and sewerage services to the country's businesses. Over 300,000 businesses trust Business Stream for expert water solutions
Additional services
Consolidated billing
Water efficiency service
Water-saving devices
Water network connections
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Everflow was founded in 2014 in Hartlepool and proudly became the first business water supplier to offer all its customers a carbon-neutral water and wastewater services. Everflow is a customer-focussed utilities company serving businesses across the UK with environmentally-friendly water supply and waste collection services.
Additional services
Consolidated billing
Additional customer service
Waste management
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Castle Water began trading in 2017 and took over providing retail services to customers of Portsmouth Water ,Thames Water, South East Water in 2018, and then Affinity Water in 2020. Castle Water provide water and wastewater services to hundreds of thousands of businesses, charities and public bodies in England and Scotland. Work with the UK's best water supplier to ensure accurate billing and second-to-none advice.
Additional services
Water network connection
Smart meters
Consolidated billing
Water efficiency service
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Clear Business Water is the leading independent water provider in Scotland and has expanded its operations into England’s water market. Clear Business also supply broadband, voice, mobile, water, gas and electricity, payment services and business insurance to SME's across Scotland and England
Additional services
Consolidated billing
Smart meters
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Headquartered in Stoke-on-Trent, Water Plus Limited was incorporated as a 50/50 joint venture between United Utilities and Severn Trent. Founded in May 2016, Water Plus is now the largest water retailer in the UK, supplying customers across all sectors, from major users and multi-sites, to small, medium and micro businesses. Supporting more than 350,000 organisations around England and Scotland
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Additional services
Consolidated billing
Smart meters
Water connection services
Water efficiency service
In January 2020, ConservAqua entered the open water market. It is dedicated to delivering excellent customer service, precise billing, and a variety of additional water-related services.With a strong environmental focus, ConservAqua addresses the challenge of water scarcity in the UK
Additional services
Water efficiency service
Third party supply advice
Smart meters
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Water2business is the retail company jointly owned by Bristol Water and Wessex Water, serving over 80,000 customers across England and Scotland. They offer leading customer service and tailored water and wastewater management that will help to improve efficiency and deliver savings. Notably, this has achieved the distinction of being the top-performing business water supplier, securing the MOSL Market
Additional services
Consolidated billing
Water efficiency service
Smart meters
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Sutton and East Surrey Water announced prior to the opening of the competitive market that it is changing the trading name and logo for its wholesale business ahead of retail market opening for business customers. Operating as an affiliated retailer of SES Water. In January 2024, Pennon Group (who also own South West Water, Bristol Water and Bournemouth Water) acquired SES Water from Sumitomo Corp.
Additional services
Consolidated billing
Water efficiency service
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PURE, established in April 2015 in Scotland is a licensed provider of water and waste water services to non-household customers in Scotland. With years of industry experience and some great ideas to help customers save money on their water bills, we help reduce environmental impact at the same time and all with the minimum of hassle. PURE also offer a complimentary Water Efficiency self-assessment tool on their website.
Additional services
Water saving tracker
Water efficiency service
Smart meters
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Established in 2017, First Business Water is known for its proactive approach to improving the water consumption of its customers. They are committed to providing the highest level of customer care and this includes an effective process for handling complaints such as WaterDeck, an online platform for aggregating water consumption data from commercial properties. WaterDeck provides insights into water usage and evaluates the effectiveness of water-saving strategies.
Additional services
Consolidated billing
Water efficiency service
Nordpower Partners is fully independent and supplier-neutral. We work with a wide panel of licensed UK business water retailers, allowing us to provide objective advice based solely on what is right for your business.
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No obligation • No disruption • No pressure
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Speak to a Business Water Specialist
If you would like to review your current water arrangements or learn more about your options in the open market, speak with one of our specialists today.
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Enquire online or contact our team to discuss how Nordpower Partners can support your business water requirements.
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Why choose Nordpower Partners?
Independent, expert-led support for smarter energy and water decisions.
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At Nordpower Partners, we work as an extension of your business, providing clear, informed guidance across the commercial energy and water markets. Our approach is built on transparency, expertise, and long-term value — not short-term sales.
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Independent & Supplier-Neutral
We are not tied to any single supplier. This allows us to objectively compare the market and negotiate contracts that genuinely suit your business requirements.
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Expertise You Can Rely On
Our specialists have in-depth knowledge of the UK energy and water markets, enabling us to navigate complexity, identify opportunities, and secure competitive terms on your behalf.
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Tailored to Your Business
No two businesses are the same. We take the time to understand your usage, objectives, and future plans to ensure your contracts are aligned with your needs.
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Time-Saving, End-to-End Support
From initial consultation through to contract placement and renewal, we manage the process for you — removing the administrative burden and saving valuable time.
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Clear, Transparent Advice
We explain your options in plain English, providing insight and clarity so you can make confident, informed decisions.