Last year the mobile phone networks overcharged UK businesses and consumers approximately

£ 7,600,000,000

We're here to keep them honest.

We compare

O2 logo Vodafone logo EE logo Business & Consumer
Three logo Tesco logo Consumer Only

Let Billmonitor find out exactly how much you're being overcharged and match you to the right contract

And if you’re mid-contract, our monthly Bill Check-up helps you make the most of it.

Billmonitor analyses your mobile bills

Against 2 million contracts

And matches you to the right new contract

Each month, Bill Check-up reviews your plan and alerts you if you’re free to switch to a new contract

Set up a free account and get free monthly bill monitoring

Bill Analysis

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I'm happy to share my account details to get the most accurate deal

Analyse my online bill
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I don't have online billing

I'm happy to get an estimated deal based on my estimated usage

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William is on the wrong contract and can save £41 this year
Stephen now knows how to find a new Huawei P20 128GB and save £188 a year
Christina is on wrong contract and is overpaying by £41 a year
Billmonitor found Taylor is on the wrong contract and is paying £30 more than necessary
Jeremy is on the wrong contract and can save £207 this year
Louis can feel happy in the knowledge of already being on the right contract
William is already on the right contract - Billmonitor congratulated William
Kara can feel happy in the knowledge of already being on the right contract
Chris, one of the few already on the right contract, now knows it for sure
Billmonitor found Chris is on the wrong contract and is paying £905 more than necessary
Jay can feel happy in the knowledge of already being on the right contract
Scott is on the wrong contract and can save £114 this year
David can feel happy in the knowledge of already being on the right contract
James, one of the few already on the right contract, now knows it for sure
Andrew now knows how to find a new Huawei P20 Pro 128GB and save £117 a year
Ian is already on the right contract - Billmonitor congratulated Ian
Zoe can save £58 and still get a new Apple iPhone 6S 32GB
Leah can feel happy in the knowledge of already being on the right contract
Mary can feel happy in the knowledge of already being on the right contract
Ian is on the wrong contract and can save £172 this year
Jamie can get the Apple iPhone 7 32GB on the right contract – and save £124 a year
David, one of the few already on the right contract, now knows it for sure
Billmonitor found Ross is on the wrong contract and is paying £59 more than necessary
Billmonitor found Adrian is on the wrong contract and is paying £36 more than necessary
Alice can feel happy in the knowledge of already being on the right contract
Andrew is on the wrong contract and can save £44 this year
Lee can save £314 and still get a new Samsung Galaxy S8 64GB
Jacob is on the wrong contract and can save £222 this year
Kelly can save £149 and still get a new Apple iPhone 8 64GB
Louis is on wrong contract and is overpaying by £61 a year
Andrew is already on the right contract - Billmonitor congratulated Andrew
Mary is already on the right contract - Billmonitor congratulated Mary
Billmonitor found Christian is on the wrong contract and is paying £77 more than necessary
Derek is on wrong contract and is overpaying by £66 a year
Nico can feel happy in the knowledge of already being on the right contract
Billmonitor found Emma is on the wrong contract and is paying £251 more than necessary
Paul can save £389 and still get a new Apple iPhone 8 plus 64GB
Andy is on the wrong contract and can save £40 this year
Billmonitor found Elizabeth is on the wrong contract and is paying £108 more than necessary
Susan can feel happy in the knowledge of already being on the right contract
Samuel is on the wrong contract and can save £243 this year
Rory is on wrong contract and is overpaying by £51 a year
Amy, one of the few already on the right contract, now knows it for sure
Monica is on the wrong contract and can save £44 this year
Liam is already on the right contract - Billmonitor congratulated Liam
Richard is on wrong contract and is overpaying by £273 a year
Billmonitor found Robert is on the wrong contract and is paying £36 more than necessary
Sharon is already on the right contract - Billmonitor congratulated Sharon
John can save £191 and still get a new Apple iPhone X 64GB
David, one of the few already on the right contract, now knows it for sure
Alan can get the Apple iPhone XR 64GB on the right contract – and save £173 a year
Lisa is on the wrong contract and can save £47 this year
James, one of the few already on the right contract, now knows it for sure
Rebekah is already on the right contract - Billmonitor congratulated Rebekah
Michael can feel happy in the knowledge of already being on the right contract
Joanna, one of the few already on the right contract, now knows it for sure
Emma is on the wrong contract and can save £87 this year
Alison can save £266 and still get a new Apple iPhone XR 128GB
Emma is on the wrong contract and can save £39 this year
Donna is on wrong contract and is overpaying by £103 a year
Curtis is on the wrong contract and can save £114 this year
Sarah is on wrong contract and is overpaying by £28 a year
Billmonitor found Henry is on the wrong contract and is paying £151 more than necessary
Caroline is on wrong contract and is overpaying by £108 a year
Billmonitor found Joseph is on the wrong contract and is paying £65 more than necessary
Scott is on wrong contract and is overpaying by £28 a year
Lucia can save £51 and still get a new Apple iPhone 8 64GB
Gordon is on wrong contract and is overpaying by £115 a year
Desmond, one of the few already on the right contract, now knows it for sure
Billmonitor found Sara is on the wrong contract and is paying £188 more than necessary
Gary can feel happy in the knowledge of already being on the right contract
Carolyn is already on the right contract - Billmonitor congratulated Carolyn
Billmonitor found Leslie is on the wrong contract and is paying £635 more than necessary
Laura, one of the few already on the right contract, now knows it for sure
Aria, one of the few already on the right contract, now knows it for sure
Anders, one of the few already on the right contract, now knows it for sure
Clare is already on the right contract - Billmonitor congratulated Clare
William can feel happy in the knowledge of already being on the right contract
Ofcom approved logo

Billmonitor was the first mobile tariff comparison service to be accredited by Ofcom, the UK telecommunications regulator, and forms part of the UK government’s MiData project.

Three Mathematicians

Billmonitor was launched in 2009 by three mathematicians in Oxford.

Using advanced maths to turn the complexity of bills and tariffs into simple, actionable intelligence, it allows users to make informed decisions and save money in a market where the networks do their best to keep things murky.

Testimonials

Barts Cancer Institute saved 42% on their corporate bills

London-based Investment Management Firm saved £92,000

Central Surrey Health reduced their costs by nearly 50%

AMS Aircraft saved 58% on out of allowance costs

Amius saved 37.5% through improved tariff and bundle selection
Billmonitor

How much could you save?

How many devices do you have?

Let us know how many devices (phones and tablets) you have and we’ll give you a rough estimate of how much you’re being overcharged.

Potential savings
*
*more than 1,000 devices?
Call us: 0800 689 3035
Bill analysis

Now get it spot on.

If you give us your phone account details for online billing, our evidence-based engine can 'crunch' your bill and discover the best plan for your business (49% savings average).

We’ll then arrange a free, no obligation consultation to talk you through the findings.

Don’t worry if you don’t have your account details to hand, just send us your contact details via the form below and we’ll email you about how to find out how much you could save.

How it works

Case Study

CSH Surrey, Surrey's largest NHS community services provider, cuts contract costs by nearly 50%.

I was initially sceptical about Billmonitor’s ability to achieve savings as our average cost per connection was already less than £10 on public sector tariffs but they really exceeded our expectations and reduced our contract costs by nearly 50%.
See case study

Research

The Billmonitor investigation into the B2B mobile provider ‘Wild West’ reveals that only one in ten SMEs get a fair deal from their providers, while Ofcom turns a blind eye.

Read the report

Case Study

Barts Cancer Institute, the leading public sector research centre, saves 42%.

It was important for us to find a truly independent advisor who would also be able to support the BCI throughout the switching process and Billmonitor truly exceeded our expectations.
See case study

Case Study

Billmonitor helps a London-based investment management firm save £92,000.

By identifying historical billing errors and selecting tariffs and bundles matching the client's usage, Billmonitor saved the firm £92,000 and will now periodically review for further optimisations as part of our monitoring service.
See case study
Ofcom approved logo

Billmonitor’s consumer service was the first mobile tariff comparison service to be accredited by Ofcom, the UK telecommunications regulator, and forms part of the UK government’s MiData project.

If you do nothing else, ask these three questions to your network provider

1
‘How many dormant devices do we have?’
Hint:

Most businesses have dormant devices they’re not aware of (and that the networks won’t tell you about unless you ask). This alone means the average business is being overcharged by more than 10%.

2
‘How much does it cost us when we go over our monthly allowances for data or international calls?’
Hint:

Many businesses incur massive charges when they go over their monthly allowances, especially for data and international calls. Having the right bundles can prevent this and dramatically reduce costs.

3
‘What percentage of our bill is allocated to handsets?’
Hint:

There is no such thing as a free handset – the higher your monthly tariff, the larger the handset fund you should be offered. On average a good handset fund represents about 40% to 50% of your total contract costs.

Three Mathematicians

Billmonitor was launched in 2009 by three mathematicians in Oxford.

Using advanced maths to turn the complexity of bills and tariffs into simple, actionable intelligence, it allows users to make informed decisions and save money in a market where the networks do their best to keep things murky.

Read more
Sectors
Local and regional authorities, NHS and private health care providers, charities and educational institutes
Testimonials

Barts Cancer Institute saved 42% on their mobile bills

Central Surrey Health reduced their costs by nearly 50%

City & Guilds received instant cashflow savings of 30% with projected combined savings of 60%
Billmonitor

How much could you save?

How many devices do you have?

Let us know how many devices (phones and tablets) you have and we’ll give you a rough estimate of how much you could save on your contract.

Potential savings
*
*more than 1,000 devices?
Call us: 0800 689 3035
Bill analysis

Now get it spot on.

If you give us your phone account details for online billing, our evidence-based engine can 'crunch' your bill and discover the best plan for your organisation (average savings of about 50%).

We’ll then arrange a free, no obligation consultation to talk you through the findings.

Don’t worry if you don’t have your account details to hand, just send us some basic details about your mobile account and your contact details via the form below and we’ll reach out to explain how we can identify savings for you.

Case Study

Barts Cancer Institute, the leading public sector research centre, saves 42%.

It was important for us to find a truly independent advisor who would also be able to support the BCI throughout the switching process and Billmonitor truly exceeded our expectations.
See case study

Introduction

Billmonitor operates independently from any network. Its software does not take commission into account and ranks its recommendations purely on savings. Importantly, Billmonitor only earns money when its clients save money.

Read the intro

Case Study

City and Guilds, educational charity initially saved 30% with projected combined savings of 60% on contract renewal.

Billmonitor identified significant cash-saving actions by removing 144 dormant and out-of-contract connections, identifying 82 still-in-contract but dormant connections and increasing data allowance for relevant individual connections.
See case study

Case Study

CSH Surrey, Surrey's largest NHS community services provider, cuts contract costs by nearly 50%.

I was initially sceptical about Billmonitor’s ability to achieve savings as our average cost per connection was already less than £10 on public sector tariffs but they really exceeded our expectations and reduced our contract costs by nearly 50%.
See case study
Ofcom approved logo

Billmonitor’s consumer service was the first mobile tariff comparison service to be accredited by Ofcom, the UK telecommunications regulator, and forms part of the UK government’s MiData project.

Billmonitor believes that all organisations have a responsibility towards their employees, clients, community and environment. We are therefore regularly reviewing our core values and have selected the following four as being the most relevant for us, as an organisation but also individually.

Sustainable Prosperity

Sustainable
Prosperity

Click me for more info
Helping organisations and consumers to become more financially sustainable by reducing costs and making better use of limited resources.
Responsible Action

Responsible
Action

Click me for more info
Truly independent, fully transparent and using proprietary software designed to deliver unbiased savings. Evidenced by 10 years of Ofcom accreditation.
Value People

Value
People

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Helping customers to understand their bills better and thus make better buying decisions. Treating them and our employees with respect and courtesy.
Value Relationships

Value
Relationships

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Building long-term relationships with our clients, business partners and employees, mutually supporting each other to grow and prosper.

We worked on our values in collaboration with

Value Match

 - a values-led organisation that shares the belief that all organisations should be purpose-focused and value driven - in order to address social and economic inequalities, positively impact the environment and bring real cost savings to the public sector. The

Value Match

 Model helped us to identify our core values to have a high impact upon all our stakeholders and maximise impact in our delivery - bringing real cost benefits to the public sector.

Three Mathematicians

Billmonitor was launched in 2009 by three mathematicians in Oxford.

Using advanced maths to turn the complexity of bills and tariffs into simple, actionable intelligence, it allows users to make informed decisions and save money in a market where the networks do their best to keep things murky.


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See you soon,

The Billmonitor team