Sponsor of:

carehome.co.uk  daynurseries.co.uk  surrey-care-logo

 

23 years celebrating

Trusted Business Energy Supplier in the UK

D-ENERGi is a reliable, Ofgem-registered business gas and electricity supplier. We are a real alternative to the Big Six energy suppliers in the UK. Incorporated in 2002, we have become one of the longest established and well respected independent business energy suppliers in the UK.
Our customer portfolio ranges from individual care homes to larger care home groups and specialised sectors such as education, hospitality, manufacturing, retail and charities.
We help small, medium and large businesses reduce business energy bills and secure the best business electricity rates available. With our competitive and bespoke business energy prices, we ensure you get the best business energy deals across the UK.
Customer satisfaction is our top priority. We ensure that your calls will be answered within three rings—no automated menus. We are proud to be recognised finalists at the Energy Awards 2025 in two categories: Energy Supplier of the Year and Campaign of the Year – Customer Satisfaction. And we are honoured to be a Silver Sponsor of the Surrey Care Awards 2025.

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What Our Customers Say About Us

We are rated ‘Excellent’ on Trustpilot.

We’re proud to have an outstanding track record. Our customers shared their
remarkable experiences and the substantial savings they’ve achieved. Discover the differences for yourself
contact us on 0800 781 7626 today!

Incredible Customer Service

“I’m not usually one to write reviews however Kendall Marsden deserves a big shout out! There’s never been a request that I’ve sent to Kendall that she hasn’t managed to resolve or answer. I don’t think I’ve ever waited longer than 24 hours for her to reply! Always so efficient and reliable. Incredible customer service, thank you Kendall!”

Manufacturer

Fast and Efficient Service from Kendall

“She has dealt with our renewal the last few times. Great prices for our account compared to the competition.”

Care Home

Competitive – Always

“I got 4 independent quotes and again I have found D-ENERGi to be the most competitive. I believe this is about 15 plus years with them and each renewal they come out the best.”

Restaurant

I Would Definitely Recommend D-ENERGi!

“I have been with D-ENERGi for some years now. It is so refreshing to be able to phone a number and get straight through to the person who deals with my account. My accounts are looked after by Hena Ahmed and she is always friendly and very patient and  I feel always gets me very competitive prices.”

Great Company with Personal Touch

“Been this company for two and half years. They offer the personal touch that big market players don’t seem to as well as ultra competitive prices. Would definitely recommend.”

Excellent service from start to finish

“Excellent service from start to finish, Faline worked tirelessly to ensure I received the very best rates yet again. Highly recommend supplier 10/10.”

Lee Doran/Hena amazing staff

“I have been dealing with Lee for many years now, this year I also dealt with Hena as well. Both are brilliant and so helpful. I always use D-ENERGi and they always make sure they are competitive. I find that I can trust their staff as they give me good advice and guidance.”

Care Home

Thank You the D-ENERGi Team

“We have been a customer for many years. D-ENERGi always go the extra mile to ensure we receive the best energy rates available on the market. Our trusted point of contact is Joanne Campbell, Sales Manager. Her excellent service and support to our Charity is outstanding and very much appreciated.”

Retail

Good Customer Service

“Our first contract with D-ENERGi ended last month after 5 years. We were offered good rates at the end of the contract. Also communication with the account manager was very efficient. Therefore, we decided to stay with D-ENERGi for another 3 years. I would highly recommend this company.”

Great Company

“We have been using D-Energi for 3 years now, they offer great service, always get back to any queries really quickly. Faline has been especially helpful. Have got us the best gas prices for our small business in a time when the market has been so turbulent. 5*”

Great Communication

“Great communication, we have been working with them for many years now. They do have T’s and C’s but as long as you ask them clearly what you want they are helpful.”

Dial Directly to A Real Person

“I have been a customer of D-ENERGi for several years now. Always they have been on the money for competitive prices. But the easy part is being able to speak to the staff direct dial especially Faline and Kendall who are always on hand to help and make the job easier.”

Very Efficient and Competitive

“D-ENERGi has just sorted out the electric contract for our business. I got a very friendly and efficient service from start to finish. The whole process was very straight forward and she was able to find us a cheaper and better deal than numerous other suppliers. Communication was timely with no issues. Thank you Hena Ahmed!”

HIGHLY RECOMMEND D-ENERGI!!

“I’m a PA and my boss has numerous properties who D-ENERGi supply. We have used D-ENERGi for several years to supply these properties. Their customer service is second to none – great communication, really helpful and friendly. All the reps are helpful, and I have had the privilege of dealing often with one particular (Joanne) sales manager there who always…”

Reliable and Affordable Energy Solutions

“We recently renewed both our gas and electricity contracts, and the process with Faline Welsh was smooth and efficient, the new rates are competitive and communication was clear throughout, and any questions we had were promptly answered. It’s reassuring to know we’re now locked into a cost-effective deal that suits our needs, especially in today’s energy market. Highly recommend for…”

Dynamic Duo

“Always competitive pricing, react quickly to drops in the market and a direct point of contact to ensure any questions answered very quickly. Our account manager Faline always goes above and beyond, and is flexible around pricing structure, always doing what’s need to ensure they are competitive for customer. An honourable mention also to Kendall Marsden, the other half of…”

Easy Renewal Process

“We have recently renewed our gas contract with D-ENERGi. It was a quick and easy process with very good rates offered. Hena dealt with the process for us and was very helpful with the queries we had. Many thanks!”

Swift Responses

“I have to say that I am impressed with the swift answers that was given to my urgent requests by Jacob.”

Great Customer Service

“We have been a customer of D-ENERGi for a number of years now. Price is always a top consideration but customer service comes a close second. We have never been disappointed, the prices received have always been competitive and normally the best value and nothing is too much trouble for our account manager (Richard) Would not hesitate to recommend.”

Recruitment

Best Customer Service

“D-ENERGi always go the extra mile to ensure we receive the best energy rates available on the market and when I found somewhere cheaper our broker Kendall Marsden went above and beyond to match one of the rates and talked things through with me.”

Lee was an Amazing Manager

“Lee took the time and looked into our energy usage and offered us an amazing deal (45%) off our deemed rates. He was very helpful and supportive, understanding of our needs and financial costs.”

Hassle-free and Cost-effective Service

“Their great customer service stands out from the competition. Not only are they easy to reach by phone, but they also demonstrated great efficiency in promptly switching us to a more affordable tariff when energy prices dropped. It’s great to find a company that values its customers.”

Always Good Service and Price

“Always been good service speaking with someone and the prices are good. We’re a small business and have been with them 9 years now. Sorted another 2 year renewal this month with Hena, who was very helpful. Will use again.”

Great Experience with D-ENERGi

“We’ve been working with D-ENERGi for a few months and we’ve had a great experience so far. Their service is incredible and they have a very friendly team. We’ve dealt with Kendall and she’s been super helpful and quick. We look forward to continuing to work together!”

Printing

Highly Recommend

“We at printing.com have had a fantastic business relationship with D-ENERGi for over 14 years, and its always a pleasure. I’d highly recommend the team at D-ENERGi to anyone! – Antony Elmore”

Friendly and Helpful

“I have had very little reason to contact D-ENERGi but on the occasions I have, found them friendly and helpful. – J Hall”

Care Home

Been a Client for about 7 Years

“I run a large, multi-site care business in the South East and was initially canvassed and offered some good rates, which I took up. They now look after every single energy contract I have. – Mike Smith”

Superb professional service!

“Would highly recommend D-ENERGi – we were already a customer from a previous contract and the rates offered were competitive and the service provided with excellent!”

Office/ services

Great company

“Been with D-ENERGi for a number of years now, always competitive prices and would highly recommend.”

Always Easy to Get in Touch with

“Always easy to get in touch with. A good service and reasonable prices.”

Engineering

Good Service

“We have always had a good service from D-ENERGi and it is really good to speak to an operator if you ring with an enquiry.”

Incredible Customer Service

“I’m not usually one to write reviews however Kendall Marsden deserves a big shout out! There’s never been a request that I’ve sent to Kendall that she hasn’t managed to resolve or answer. I don’t think I’ve ever waited longer than 24 hours for her to reply! Always so efficient and reliable. Incredible customer service, thank you Kendall!”

Manufacturer

Fast and Efficient Service from Kendall

“She has dealt with our renewal the last few times. Great prices for our account compared to the competition.”

Care Home

Competitive – Always

“I got 4 independent quotes and again I have found D-ENERGi to be the most competitive. I believe this is about 15 plus years with them and each renewal they come out the best.”

Restaurant

I Would Definitely Recommend D-ENERGi!

“I have been with D-ENERGi for some years now. It is so refreshing to be able to phone a number and get straight through to the person who deals with my account. My accounts are looked after by Hena Ahmed and she is always friendly and very patient and  I feel always gets me very competitive prices.”

Great Company with Personal Touch

“Been this company for two and half years. They offer the personal touch that big market players don’t seem to as well as ultra competitive prices. Would definitely recommend.”

Excellent service from start to finish

“Excellent service from start to finish, Faline worked tirelessly to ensure I received the very best rates yet again. Highly recommend supplier 10/10.”

Lee Doran/Hena amazing staff

“I have been dealing with Lee for many years now, this year I also dealt with Hena as well. Both are brilliant and so helpful. I always use D-ENERGi and they always make sure they are competitive. I find that I can trust their staff as they give me good advice and guidance.”

Care Home

Thank You the D-ENERGi Team

“We have been a customer for many years. D-ENERGi always go the extra mile to ensure we receive the best energy rates available on the market. Our trusted point of contact is Joanne Campbell, Sales Manager. Her excellent service and support to our Charity is outstanding and very much appreciated.”

Retail

Good Customer Service

“Our first contract with D-ENERGi ended last month after 5 years. We were offered good rates at the end of the contract. Also communication with the account manager was very efficient. Therefore, we decided to stay with D-ENERGi for another 3 years. I would highly recommend this company.”

Great Company

“We have been using D-Energi for 3 years now, they offer great service, always get back to any queries really quickly. Faline has been especially helpful. Have got us the best gas prices for our small business in a time when the market has been so turbulent. 5*”

Great Communication

“Great communication, we have been working with them for many years now. They do have T’s and C’s but as long as you ask them clearly what you want they are helpful.”

Dial Directly to A Real Person

“I have been a customer of D-ENERGi for several years now. Always they have been on the money for competitive prices. But the easy part is being able to speak to the staff direct dial especially Faline and Kendall who are always on hand to help and make the job easier.”

Very Efficient and Competitive

“D-ENERGi has just sorted out the electric contract for our business. I got a very friendly and efficient service from start to finish. The whole process was very straight forward and she was able to find us a cheaper and better deal than numerous other suppliers. Communication was timely with no issues. Thank you Hena Ahmed!”

HIGHLY RECOMMEND D-ENERGI!!

“I’m a PA and my boss has numerous properties who D-ENERGi supply. We have used D-ENERGi for several years to supply these properties. Their customer service is second to none – great communication, really helpful and friendly. All the reps are helpful, and I have had the privilege of dealing often with one particular (Joanne) sales manager there who always…”

Reliable and Affordable Energy Solutions

“We recently renewed both our gas and electricity contracts, and the process with Faline Welsh was smooth and efficient, the new rates are competitive and communication was clear throughout, and any questions we had were promptly answered. It’s reassuring to know we’re now locked into a cost-effective deal that suits our needs, especially in today’s energy market. Highly recommend for…”

Dynamic Duo

“Always competitive pricing, react quickly to drops in the market and a direct point of contact to ensure any questions answered very quickly. Our account manager Faline always goes above and beyond, and is flexible around pricing structure, always doing what’s need to ensure they are competitive for customer. An honourable mention also to Kendall Marsden, the other half of…”

Easy Renewal Process

“We have recently renewed our gas contract with D-ENERGi. It was a quick and easy process with very good rates offered. Hena dealt with the process for us and was very helpful with the queries we had. Many thanks!”

Swift Responses

“I have to say that I am impressed with the swift answers that was given to my urgent requests by Jacob.”

Great Customer Service

“We have been a customer of D-ENERGi for a number of years now. Price is always a top consideration but customer service comes a close second. We have never been disappointed, the prices received have always been competitive and normally the best value and nothing is too much trouble for our account manager (Richard) Would not hesitate to recommend.”

Recruitment

Best Customer Service

“D-ENERGi always go the extra mile to ensure we receive the best energy rates available on the market and when I found somewhere cheaper our broker Kendall Marsden went above and beyond to match one of the rates and talked things through with me.”

Lee was an Amazing Manager

“Lee took the time and looked into our energy usage and offered us an amazing deal (45%) off our deemed rates. He was very helpful and supportive, understanding of our needs and financial costs.”

Hassle-free and Cost-effective Service

“Their great customer service stands out from the competition. Not only are they easy to reach by phone, but they also demonstrated great efficiency in promptly switching us to a more affordable tariff when energy prices dropped. It’s great to find a company that values its customers.”

Always Good Service and Price

“Always been good service speaking with someone and the prices are good. We’re a small business and have been with them 9 years now. Sorted another 2 year renewal this month with Hena, who was very helpful. Will use again.”

Great Experience with D-ENERGi

“We’ve been working with D-ENERGi for a few months and we’ve had a great experience so far. Their service is incredible and they have a very friendly team. We’ve dealt with Kendall and she’s been super helpful and quick. We look forward to continuing to work together!”

Printing

Highly Recommend

“We at printing.com have had a fantastic business relationship with D-ENERGi for over 14 years, and its always a pleasure. I’d highly recommend the team at D-ENERGi to anyone! – Antony Elmore”

Friendly and Helpful

“I have had very little reason to contact D-ENERGi but on the occasions I have, found them friendly and helpful. – J Hall”

Care Home

Been a Client for about 7 Years

“I run a large, multi-site care business in the South East and was initially canvassed and offered some good rates, which I took up. They now look after every single energy contract I have. – Mike Smith”

Superb professional service!

“Would highly recommend D-ENERGi – we were already a customer from a previous contract and the rates offered were competitive and the service provided with excellent!”

Office/ services

Great company

“Been with D-ENERGi for a number of years now, always competitive prices and would highly recommend.”

Always Easy to Get in Touch with

“Always easy to get in touch with. A good service and reasonable prices.”

Engineering

Good Service

“We have always had a good service from D-ENERGi and it is really good to speak to an operator if you ring with an enquiry.”

    Our Customers' Reviews

     

    Get a free quote today and see how much you could save.

    Call us on 0800 781 7626 to speak to our friendly experts. Your calls will be answered within three rings.

    Email our friendly team: [email protected]

    Connect with us

    Switch to D-ENERGI for Your Business Energy Supply Today

    Step 1

    Reach Out to Us

    Step 2

    Receive Your Bespoke Business Energy Quote

    • Provide a few details about your business. We’ll find the best business energy rates tailored specifically for you.
    Step 3

    Choose Your Business Energy Deals

    • Once you select your business energy deals, we’ll handle the entire switching process, guiding you every step of the way.

    Get A Quote

    Frequently Asked Questions

    When is the best time to switch business energy suppliers?
    A: To switch to a new business energy supplier, you will need to check your notice period which can usually be found in your current contract terms and conditions of your current energy provider. At D-ENERGi, our customers can serve termination notice at any point up to 30 days before the contract end date. Always review your current contract terms and conditions for any potential charges.
    When it comes to securing the lowest rates and getting the timing right, our business energy experts are always monitoring the energy market closely looking for trends that will indicate when prices are looking most favourable. For more information, please get in touch with us!
    How do I compare business energy suppliers?
    A: 1. Evaluate Key Factors
    To effectively compare energy suppliers in the UK, evaluate key factors such as unit rates, standing charges, and contract lengths.
    2. Read Customer Reviews
    Check Trustpilot for customer feedback. Reviews can provide insight into the reliability and service quality of potential suppliers.
    3. Consider Renewable Energy Options
    If sustainability is important to your business, look for energy suppliers that offer renewable energy sources, such as wind power.
    How to get a free business energy quote?
    A: Simply complete our online form, our energy experts will get in touch with you as soon as possible. We’ll provide a free, tailored business energy quote with no obligation to meet your business needs.
    How much could I save by switching business energy suppliers?
    A: Switching business energy suppliers can lead to significant savings. When your business energy contract is approaching its end, take the opportunity to compare business energy prices and secure lower energy rates. At D-ENERGi, our price matching team not only matches your current energy quotes but strives to beat it! Let us help you save thousands on your energy bills.
    How do I switch my business energy suppliers?
    A: Switching to D-ENERGi is quick and simple. Follow these easy steps to start saving energy costs:
    • Get Your Free Quote: Fill out a few information on our website.
    • Get in touch: Our dedicated account managers will get in touch and find the best rates tailored to your business.
    • Seamless Switching: Once you agree on your energy contract. We’ll handle the entire switch process and work with your current energy supplier.
    Can I switch business energy supplier if my energy contract hasn’t ended?
    A: It’s generally advisable to wait until your current energy contract ends before making a move.
    If you want to switch before the end of your energy contract, be aware that you may incur an exit fee for terminating your agreement early.
    Switching to D-ENERGi is easy and hassle-free—contact us today for more information!
    What happens when my business energy contract ends?
    A: If your energy contract nears its end, you can:
    • Accept the renewal quote from your current energy supplier.
    • Switch to a new supplier and inform your existing supplier.
    • Do nothing and continue on deemed rates from your current supplier.
    Can I cancel my business energy contract?
    A:
    • Early termination fees may apply if you wish to end your energy contract before your fixed price tariff end date.
    • If your energy contract ends within the next 6 months, you can opt to leave it.
    • If you want to switch before your contract end date, it could incur exit fees.
    Should I fix my business energy prices?
    A: Fixing your energy prices can be a strategic move to safeguard your business against market fluctuations. By locking in a fixed rate, you’ll maintain the same cost per unit of energy, even if market prices rise. However, if prices decrease, you’ll still be tied to the fixed rate.
    Before committing to a fixed price, it’s essential to compare various fixed-rate deals from different energy suppliers. This will help you find the most competitive rates tailored to your business’s energy needs, ensuring you make a well-informed decision.
    Is a half hourly meter more expensive?
    A: While the metering fees for half hourly meters are higher than standard meters, this cost is a small price to pay for heavy commercial users who can save significantly on their business energy bills. The accuracy can lead to lower energy bills!
    For more insights into half-hourly meters, check out our blog: The Half Hourly Meter Guide

    More FAQs

    award-iconAwards & Accreditations

    energy awardscyber essentials certified UKBA

     

    Investors in People Gold  energy awards  award  energy awards
    national business awards UK    UKBA uk business awards    DENERGI-GBEA17

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