What is the difference between a business SIM and a personal SIM?

While the physical SIM card is identical, business SIMs include commercial benefits tailored for companies: centralised billing across your entire team on one invoice, the ability to pool data allowances, dedicated B2B account management, and VAT itemisation to simplify tax reporting.

Can I keep my existing mobile number if I switch to a business SIM?

Yes. You can port your existing number to a new business SIM by requesting a PAC (Porting Authorisation Code) from your current provider and providing it to your new network. The switch typically completes within one working day.

Are business SIM only deals cheaper than personal contracts?

In most cases, yes. VAT-registered businesses can reclaim the VAT on business SIMs, and volume discounts are available when purchasing three or more lines. Choosing a SIM only deal also avoids the hidden hardware subsidies built into handset-inclusive contracts.

Can I claim VAT back on a business mobile SIM?

Yes, if your company is VAT-registered. If the SIM is used exclusively for business purposes, you can reclaim 100% of the VAT on monthly line rental and out-of-bundle charges. If the phone is used for a mix of personal and business calls, you may only reclaim the VAT proportional to business usage.

What is a pooled data or shared data business plan?

A pooled data plan allows a company to purchase a single large monthly data allowance — for example, 200GB — shared across the entire workforce rather than giving each employee an individual cap. This prevents expensive out-of-bundle charges, as heavy users draw from the surplus left by lighter users.

Do business SIM only plans include EU roaming?

Post-Brexit, EU roaming policies vary significantly between providers. Many premium business SIM contracts still include EU roaming at no extra cost, but fair usage data caps typically apply abroad, and some budget networks now charge a flat daily rate. It is an important factor to compare before signing.

Do I need to pass a credit check for a business SIM contract?

Yes. Mobile networks run a commercial credit check on your company rather than a personal credit check, unless you are a sole trader. The network will assess your business's trading history, credit score, and financial health to confirm it can cover the monthly liability.

Can I get data-only SIMs for my business?

Yes. Data-only business SIMs are designed for devices that do not require voice minutes or texts. They are commonly used to provide internet access to tablets, laptops, mobile broadband routers, card payment machines, and IoT devices.

What happens to a business SIM if an employee leaves the company?

Because the contract is owned by the business rather than the individual, you retain complete ownership of the mobile number and SIM card. The SIM can be handed to a new starter or temporarily suspended via your network account manager until a replacement is hired.

Can I use an eSIM for my business mobile plan?

Yes. Most major UK networks now support business eSIMs. An eSIM is a digital profile downloaded to a compatible phone via a QR code, enabling instant remote deployment to staff and allowing employees to run both a personal and a business number on the same device simultaneously.

Business SIM Only Deals 2026 - Compare 5 UK Networks (from £8/mo)

SIM only contract

What is a SIM only contract?

SIM plans are simple. If new devices aren't your primary need, a SIM-only deal covers your calls, data and roaming needs - for a small business or a large corporation.

Instead of sending you a new device, you just get a SIM card (or eSIM) so you can instantly use the same phone with your new provider.

SIM only tariffs

SIM plan

Which SIM plan is right for you?

SIM-only plans cost less than device-inclusive plans. If your current devices work for you, it's about cost, network coverage, and reliability.

EE Business SIM deals

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O2 Business SIM deals

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Sky Business SIM deals

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Three Business SIM deals

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Vodafone Business SIM deals

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Business SIM-Only

Compare Business SIM-Only Deals

Use our simple checker for a quick look at overall network scores, or hit Get a Quote for a free, comprehensive recommendation.

Network	Business support	Best for...	Monthly pricing from
EE Business	Fast device/SIM replacements: Offers next-day replacements for faulty tech, backed by entirely UK & Ireland-based customer service teams.	Best for Coverage & Speed: Consistently wins independent awards for having the fastest 4G/5G speeds and the widest geographic network coverage in the UK.	£13 for 1GB (24 months)
O2 Business	O2 Gurus: Free, unlimited access to tech experts who can help troubleshoot devices, set up business apps, and optimise your team's tech.	Best for Perks & Flexibility: Offers highly customisable tariffs, data sharing, and free access to "O2 Priority" perks and discounts for your staff.	£8 for 2GB (36 months)
Sky Business	24/7 UK Support: Dedicated, round-the-clock UK-based support specifically for business customers, ensuring help is available outside standard working hours.	Best for Data Management: Operates a "Piggybank" system allowing you to roll over unused data and share it across your team's SIMs, often paired with promises of no mid-contract price hikes.	£11 for 10GB - £0 for the first 3 months (36 months)
Three Business	Self-Serve App Management: Their dedicated Three Business app gives administrators highly streamlined, real-time control over team billing, data usage, and support tickets.	Best for Value & Unlimited Data: Extremely aggressive pricing on uncapped, unlimited 5G data plans, making them the most cost-effective option for heavy data users.	£9 for 3GB (24 months)
Vodafone Business	V-Hub Digital Advisors: Offers 1-to-1 digital support from business tech experts to advise on everything from cybersecurity to website building, not just SIM issues.	Best for International Roaming: Their Global Roaming plans are considered top-tier for businesses with employees who frequently travel abroad.	£17.50 for 50GB (36 months)

EE Business

Fast device/SIM replacements: Offers next-day replacements for faulty tech, backed by entirely UK & Ireland-based customer service teams.

Best for Coverage & Speed: Consistently wins independent awards for having the fastest 4G/5G speeds and the widest geographic network coverage in the UK.

£13 for 1GB (24 months)

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O2 Business

O2 Gurus: Free, unlimited access to tech experts who can help troubleshoot devices, set up business apps, and optimise your team's tech.

Best for Perks & Flexibility: Offers highly customisable tariffs, data sharing, and free access to "O2 Priority" perks and discounts for your staff.

£8 for 2GB (36 months)

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Sky Business

24/7 UK Support: Dedicated, round-the-clock UK-based support specifically for business customers, ensuring help is available outside standard working hours.

Best for Data Management: Operates a "Piggybank" system allowing you to roll over unused data and share it across your team's SIMs, often paired with promises of no mid-contract price hikes.

£11 for 10GB - £0 for the first 3 months (36 months)

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Three Business

Self-Serve App Management: Their dedicated Three Business app gives administrators highly streamlined, real-time control over team billing, data usage, and support tickets.

Best for Value & Unlimited Data: Extremely aggressive pricing on uncapped, unlimited 5G data plans, making them the most cost-effective option for heavy data users.

£9 for 3GB (24 months)

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Vodafone Business

V-Hub Digital Advisors: Offers 1-to-1 digital support from business tech experts to advise on everything from cybersecurity to website building, not just SIM issues.

Best for International Roaming: Their Global Roaming plans are considered top-tier for businesses with employees who frequently travel abroad.

£17.50 for 50GB (36 months)

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Coverage checker

Ofcom coverage checker

Try the official Ofcom coverage checker to see the signal in your area. If you have a large team, hit Get a Quote and we'll help you choose the right network, deal, and contract.

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Pros & cons

SIM only pros and cons

SIM-only prices can be a lot cheaper, but you don't get to upgrade your phones. If you're on a tight budget, SIM-only and eSIM options could be a great deal - but consider hardware age and battery life too.

Feature	Handset contract	SIM only contract
Upfront cost	Low to mid (£0–£100)	None
Monthly outgoings	Higher (includes device cost)	Lowest (data/calls only)
Contract length	Long term (24–36 months)	Flexible (30 days – 12 months)
Tax efficiency	High (VAT & depreciation)	High (full business expense)
Best for...	Upgrading your fleet & tech	Maximising monthly cash flow
Risk	Early exit fees can be high	Minimal risk; easy to switch

★★★★★
Callum Hooper skilfully guided me through the thousand and one options when my company looked into changing provider. Practical, down to earth advice, always quick to reply and he never seemed to mind my re-asking of questions! Recommend.
★
Faith
2nd April 2026
★★★★★
I spoke to a kind lady called Nancy evans and was so helpful in helping me sort out my phone contracts ...she's a great credit to your team and gets 5 stars from me
★
Rich Golding
2nd April 2026
★★★★★
I had an outstanding experience working with Callum at Connection Technologies. He was incredibly helpful in identifying the best deal together with the best signal coverage for my business, and managed the entire migration from our previous provider without a single hassle. Callum provides fast, professional service and is always available when you need assistance. It’s rare to find this level of support, I’ve never experienced anything like it! Highly recommended.
★
Mitchell Nunes
6 March 2026
★★★★★
5-star service from Callum! He rescued us from O2’s dwindling/infuriating customer service and secured a fantastic Vodafone deal that’s saving us 40% per handset. I have a happy team with their shiny new iPhones. Having a dedicated person like Callum to talk to instead of a faceless call center makes all the difference. Connection Technologies is definitely the way to go - Callum couldn't have been more helpful during the "sell" and I am confident that will continue over the 3-year contract.
★
Sam Luker
24 March 2026
★★★★★
Really good to work with, Lee identified and understood our business need and came through with appropriate support. Available for questions and helped out with any problems we had along the way.
★
Jeanette Stursberg
27th February 2026
★★★★★
Kaya has been extremely helpful in setting up our new company phones and adding additional handsets when needed. Also helping with any queries we have had with regard to call logs. We are also extremely happy with overall cost of our handsets and network.
★
Nina Killen
6th February 2026

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Frequently Asked Questions

Need to know more about Business SIM Only contracts? We've got you covered.

While the physical SIM card is exactly the same, business SIMs come with commercial perks tailored for companies. These include centralized billing (putting your whole team on one invoice), the ability to pool data allowances, dedicated B2B account management, and VAT itemization, which makes tax reporting much easier.

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