Smartest Energy Business - Reviews, Prices & Tariffs
SmartestEnergy Business is a dedicated business energy supplier focused on supplying SMEs with business energy.
- Competitive prices
- Compare a range of live business energy tariffs
- Switch online today!
A Guide to Smartest Energy
With very competitive prices, they are quickly gaining popularity with business owners and pride themselves on energy affordability, sustainability and online account management. Our in-depth review to help you understand what they are like as a supplier and if they are the right choice before you compare prices.
Smartest Energy Business is rated as ‘Excellent’ with a score of 4.3 out of 5.0 on Trustpilot from around 3,500 reviews. Customers typically praise the customer service and knowledge of the market.
They offer a range of renewable business electricity and competitively priced business gas deals. Of course, in many cases this is subjective and each experience is unique, but Smartest Energy Business is a reliable supplier with great business energy deals. Smartest Energy Business also offers competitive pricing through its tender offers for energy procurement.
Smartest Energy FAQs
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Who Owns Smartest Energy?
Smartest Energy Business is part of it's parent, Smartest Energy Limited. Smartest Energy is owned by a Japanese company called the Marubeni Corporation. They have over 49,000 employees spread across 68 countries with their UK headquarters in London.
The Marubeni Corporation was founded in 1858 and officially became a UK-registered energy supplier in 2008 under the Smartest Energy brand after initial investment in 2001.
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Where Is The Smartest Energy Head Office?
SmartestEnergy Limited
The Columbus Building
7 Westferry Circus
London
E14 4HD -
Do Smartest Energy Offer Smart Meters?
Smartest Energy business customers are entitled to install a smart meter when they switch.
It will usually take between 4-8 weeks to receive your smart meter as part of the onboarding process for small businesses.
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How Can I Contact Smartest Energy?
Smartest Energy can be contacted over the phone on 01903 703400 from 8.30am to 5pm, Monday to Friday.
You can also contact Smartest Energy online through their SmartWeb service.
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What is Smartest Energy's Fuel Mix?
Smartest Energy's conventional product fuel mix includes:
- Coal – 15%
- Natural Gas – 75%
- Nuclear – 4%
- Other fuels – 6%
The renewable product fuel mix for Smartest Energy includes:
- Thermal – 50%
- Wind – 50%
Smartest Energy Business Electricity Prices Per kWh
Prices based on an assumed usage of 25,000 kWh annually for a contract beginning in October 2025, excluding VAT.
|
Contract Length |
Unit Rate |
Standing Charge |
Annual Cost |
|
1-year |
24.4p |
96.3p |
£5,231 |
|
2-years |
25.7p |
109.2p |
£5,538 |
|
3-years |
26.7p |
120.3p |
£5,779 |
Smartest Energy Business Gas Prices Per kWh
Prices based on an assumed usage of 25,000 kWh annually for a contract beginning in October 2025, excluding VAT.
|
Contract Length |
Unit Rate |
Standing Charge |
Annual Cost |
|
1-year |
5.7p |
77.7p |
£1,416 |
|
2-years |
5.7p |
77.7p |
£1,416 |
|
3-years |
5.7p |
77.7p |
£1,416 |
Is Smartest Energy Business the Right Supplier For You?
We rate energy suppliers based on customers' most desired features including payment options, customer satisfaction, renewable energy and other factors. You can see this snapshot below.
|
Features |
Services Offered |
|
Online Billing |
Yes |
|
Direct Debit |
Yes |
|
Smart Meters |
Yes |
|
Mobile App |
Yes |
|
Flexible Payments |
Yes |
|
Renewable Energy |
Yes |
|
Paper Billing |
Yes |
|
Priority Register |
Yes (opt-in) |