Top 11 Carbon Neutral, Green Hosts in the UK
Businesses are becoming increasingly eco-conscious, and for good reason. They’re looking to get more involved in assessing and improving
Businesses are becoming increasingly eco-conscious, and for good reason. They’re looking to get more involved in assessing and improving their environmental impact. For example, many are now choosing a web host not just based on performance but also based on environmental impact. If you’re looking for a carbon-neutral, green hosting company, here’s a list of the top 11 green hosting providers you can choose from.
What is Carbon Neutral or Green Hosting?
Carbon-neutral hosting or green hosting is an ecologically friendly approach to hosting where a provider uses renewable energy sources like water, wind, or solar to power their servers.
Not all green hosting providers can generate their own energy. Some web hosts follow these common alternative approaches to ensure carbon neutrality:
Buy Renewable Energy Certificates (RECs)
By helping generate equivalent green energy, hosts can offset their carbon emissions by buying green energy credits.
Carbon Offsetting
Also known as Voluntary Emission Reduction (VER), carbon offsetting is absorbing carbon and balancing it out with the emitted carbon. A carbon offset certificate shows the amount of greenhouse gases a host has reduced.
Supporting Green Initiatives
Planting trees, supporting wind or solar projects, and other projects that reduce carbon emissions add to these efforts.
Adopting Carbon Footprint-Reducing Practices
Promoting remote work, recycling or reusing equipment, and using more efficient hardware and software can also reduce the overall carbon footprint, helping a business achieve carbon neutrality.
Why Use Green Hosting Services?
Web hosts consume significant amounts of electricity every day, with most of it sourced from non-renewable energy sources. Whether you’re streaming a video or completing an online purchase, every action you take generates carbon emissions. Your business may only take up a fraction of the 400 terawatt hours of electricity (equivalent to powering every UK home for a year), but it quickly adds up with nearly 4 billion people as active internet users.
The UK government is keen to achieve net-zero emissions by 2050, and more organisations are prioritising energy efficiency and clean energy for their operations. Choosing green hosting over traditional is a small but impactful move to reduce your carbon footprint and do your bit for the planet.
The Top 11 UK Green, Carbon-Neutral Hosting Providers
Now that you know the what and why of carbon-neutral or eco-friendly hosting, let’s take a look at 11 of the top carbon-neutral hosting providers in the UK.
1. BlackBox Hosting
Key Highlights
Based in London, BlackBox Hosting is a certified carbon-neutral hosting provider serving businesses in the UK. It’s particularly popular with UK financial, legal, SaaS, and other high-security organisations for its private managed hosting services hosted on Tier 3+ data centres.
Along with private server and managed hosting, they offer remote desktop as a service, application hosting, and co-location services. They are the UK’s largest managed Microsoft RDS provider, with over 10,000 users daily. With 99.999% uptime, UK-based expert support, unmatched scalability and performance, complimentary DDoS and ransomware protection, and fixed pricing, BlackBox Hosting enjoys immense credibility and satisfaction among its clients. They also offer a free, no-commitment 30-day hosting trial.
Eco-Friendly Features
- Powered by renewable energy: BlackBox Hosting’s UK-based data centres are powered by 100% certified renewable energy sources, including wind, solar, and hydro.
- Use energy-efficient hardware: They keep energy consumption to a minimum with updated, modern servers with SSDs and more efficient CPUs.
- Active carbon offsetting programme: They contribute to verified environmental projects like reforestation and clean energy initiatives to offset any unavoidable emissions. BlackBox has zero Scope 1 and Scope 2 emissions.
- Meets UK’s sustainability standards: Their infrastructure meets global ISO 14001 environmental management standards and the UK’s stringent sustainability requirements.
- Use of recycled and circular hardware: They follow the circular economy principle for their hardware, and where possible, they use refurbished hardware or repurposed materials to minimise e-waste.
- Custom green, eco-hosting solutions: Get green hosting solutions configured to your needs without compromising on eco-friendly performance.
Certifications, Accreditations, and Awards
- ISO 14001:2015 certified for a sustainable environmental management system (EMS)
- Government-approved cloud supplier under the G-Cloud 14 framework
- ISO 9001 certified, Quality Management System (QMS) for ensuring products and services that uphold regulations and client expectations
- ISO 22301 certified, meets the highest available international standard for business continuity management
- ISO 22301 certified, the highest available international standard for business continuity management, also demonstrates its capabilities to provide SaaS
- Maintains a Service Management Service (SMS) that is certified to ISO 20000-1 standards
- Cyber Essentials Plus certified, CSA STAR Level 2, and fully ISO 27001 certified.
Pricing
BlackBox Hosting offers fixed, transparent pricing for all its hosting services, including green hosting.
Here’s a review by a happy client:
“Superb company to work with. Knowledgeable, helpful, experienced and responsive when you need them. Keen to resolve problems and give advice on solutions, even with your own equipment, helps with migrations and tying teams and companies together for the best outcome and following up afterwards.
We switched to BlackBox from another datacentre ISP around 7 years ago and haven’t looked back.” – Kevin
2. IONOS
Key Highlights
IONOS offers hosting and cloud services from its European and North American data centres. It has over 30 years of experience operating 100,000 servers across its 31 data centres and 40 global facilities.
Eco-Friendly Features
- 100% renewable energy: Their European and North American data centres run on 100% renewable energy.
- Reuse and recycling of old servers: They reportedly saved over 269 tonnes of CO₂ in 2022 by recycling and reusing old servers and office equipment.
Certifications, Accreditations, and Awards
- ISO 50001 certified, reflecting formal energy management systems
- IONOS has received the Hosting & Service Provider Award in 2018 and the European Contact Centre & Customer Service Awards 2023
Pricing
Its promotional pricing starts from £ 1/ month + VAT.
3. Krystal
Key Highlights
With over two decades of experience, Krystal is a UK-based hosting provider that fully runs its services on renewable solar, wind, and sea energy supplied by energy partner, Ecotricity. Their services combine high-performance hosting and sustainable operations with advanced features and tools that power client websites.
Eco-Friendly Features
- Multiple industry partnerships: Krystal has partnered with 1% for the Planet, Million Tree Pledge, SME Climate Hub, 1t.org, Veritree, Ecologi, B Corporation, Trees for Life, and Business Declares.
- Afforestation initiative: They have planted 4,791,955 trees globally.
Certifications, Accreditations, and Awards
- ISO/IEC 27001:2022 certified and Certified B Corporation
- Winner of Best Hosted Service at the 24th annual ISPA Awards
Pricing
Krystal’s pricing plans start from £ 7/ month.
4. Eco Web Hosting
Key Highlights
UK-based Eco Web Hosting is a hosting provider focused on delivering safe and sustainable hosting solutions. They offer a 45-day money-back guarantee.
Eco-Friendly Features
- Green data centres: Their data centres are powered entirely by solar and wind energy.
- Low PUE: Krystal maintains a low power use efficiency. They also use SSD storage to lower energy consumption.
- Industry partnerships: Supported Eden Reforestation Project, Ecologi, Ransom Wood Business Park, and Tree-Nation towards reforestation and renewable energy projects.
Certifications, Accreditations, and Awards
Krystal has 60 Gold standard projects
Pricing
Their web hosting plans start from £3.49 per month.
5. SiteGround
Key Highlights
Based in the UK, SiteGround is a cloud and web hosting provider running on Google Cloud infrastructure. They are committed to reducing environmental impact through green hosting practices.
Eco-Friendly Features
- Green data centres: SiteGround runs on Google’s green data centres powered by renewable energy
- CDN: It supports a CDN to lower latency and energy consumption
- Eco-friendly tools: SiteGround offers tools like the Speed Optimiser plugin and the Website Carbon Calculator
Certifications, Accreditations, and Awards
- Received Gold and Bronze Stevie Awards at the 2023 International Business Awards and the Google Cloud DORA Award in 2024
- It’s an ISO 27001-certified organisation
Pricing
SiteGround offers introductory rates from £1.99/month, but renewal pricing is ~£13.99/month and up.
6. HostPapa
Key Highlights
HostPapa is a web hosting provider in the UK offering a range of hosting services, including VPS, managed WordPress, and shared hosting. They stand out for their ultra-fast NVMe storage and free apps to support website functionality.
Eco-Friendly Features
- 100% renewable energy: All hosting services run on renewable energy sources
- Green hosting practices: Follow safe and sustainable ways to reduce carbon footprint while powering websites.
Certifications, Accreditations, and Awards
- HostPapa is a recipient of awards, including Best Business Hosting by Web Hosting Masters, Developers’ Choice by HostingAdvice, and Developers’ Choice by Hosting Canada.
- A G Suite authorised seller
Pricing
Beginner plans start from £1.95 per month.
7. 34SP
Key Highlights
UK-based 34SP specialises in WordPress hosting, MySQL hosting, PHP hosting, and script hosting services for small businesses and professionals. They have over 25 years of hosting experience and donate 10% of their hosting capacity to registered UK charities.
Eco-Friendly Features
- Industry partnerships: Carbon offsetting with Woodland Trust and e-waste recycling with Tech Recycle. Also partnered with The Green Web Foundation and Ecologi.
- Renewable energy-centric: Both data centres and offices use renewable energy.
Pricing
Starting plans are from £2.95 /month.
8. 20i
Key Highlights
Started in 2016, 20i is a green hosting provider that is committed to green measures, including recycling waste, LED usage, and more. They centrally manage servers, websites, email, security, backups, and domains on 20iCloud, AWS, and Google Cloud.
Eco-Friendly Features
- 100% renewable energy: Their power data centres run on 100% renewable energy sources, with a highly efficient PUE of 1.2.
- Solar power: The 20i office is powered entirely by 2,088 solar panels
Certifications, Accreditations, and Awards
- Received awards such as PC Pro Best Web Host (2023 & 2024), SME News IT Awards 2025 – Best Cloud Hosting Platform & Client Service Excellence Award, and multiple G2 Summer 2025 for High Performer, Best Support, Users Most Likely To Recommend, and Most Implementable Reseller Hosting.
- 20i has ISO/IEC 27001:2022 Certification and meets PCI-DSS and HIPAA Compliance.
Pricing
Managed cloud hosting starts from £9.99/month.
9. Kualo
Key Highlights
London-based Kualo offers hosting services backed by a strong focus on customer support and cutting-edge technology.
Eco-Friendly Features
- Renewable energy: Data centres are entirely run on renewable energy and follow energy-saving practices.
- Superior PUE: It has achieved a stellar PUE of 1.05
- Power: Dual 1.5MVA grid-fed power supplies with diverse A+B feeds
- HVAC: 9Kualo has redundant HVAC cooling systems
Certifications, Accreditations, and Awards
- Audited to ISO/IEC 27001:2013 Standards
Pricing
Kualo’s plan starts from £6. 99 + VAT.
10. Solve
Key Highlights
Solve offers fast, managed WordPress green hosting services with an aim to improve website performance and user experience. They are a B Corp company that actively supports carbon-reduction initiatives.
Eco-Friendly Features
- Hosting plan to plant trees: They plant 20, 40, 60, and 120 trees with every plan sign-up
- Afforestation-focused: Partnerships with Tree-Nation and Ecologi
- Carbon offset: Generating only 20 tons and offsetting over 500 tons of CO₂.
Certifications, Accreditations, and Awards
- Solve is B Corporation certified and is one of Cornwall’s Best Places to Work 2025, and has also won the Web Excellence Award 2024
Pricing
Solve’s starter hosting plan starts from £30/month.
11. Eco Hosting
Key Highlights
Started in 1999, Eco Hosting is a longstanding green hosting provider. It’s an early mover in the green hosting space, combining eco-friendly infrastructure with high-performance servers.
Eco-Friendly Features
- Supports afforestation projects: Supports reforestation projects across Scotland, South Wales, Devon, and Somerset. Replanted 600,000 native trees over five years with the support of the Scottish government and Forestry Commission. Also contributed 30000 trees planted by The Carbon Managers.
- Power-saving and energy-efficient data centres: Its infrastructure has SSD servers with RAID 10 for high availability, along with free daily local and external backups
Pricing
Eco Hosting’s starter pack starts from £4.00 per month.
In Conclusion
If you’re looking to make the switch towards green hosting or upgrade to a new UK carbon-neutral host, this comprehensive list makes it easier to find hosting providers that meet your needs. However, do ensure you do your own research and check for the updated offerings before shortlisting the best carbon-neutral hosting provider for your organisation.
