Business SIM Only deals

Find the right SIM contract for you or your team, with our best business SIM Only deals.

Need only 1 business SIM?

Find the plan that's right for you from just £9 a month.

Need SIMs for your team?

Get multibuy savings when you buy 2 or more SIMs.

Choose your SIM only plan

24 month plans

Unlimited SIM plan

Unlimited Data

24 month plan
Unlimited UK texts & minutes

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500GB data voice SIM

24 month plan
Unlimited UK texts & minutes

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3-9 Unlimited Data SIMs + Go Roam in Europe

24 month plan
Unlimited UK texts & minutes

  • EU roaming included
Save £76
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80GB SIM Only Plan

80GB data voice SIM

24 month plan
Unlimited UK texts & minutes

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25GB data voice SIM

24 month plan
Unlimited UK texts & minutes

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3GB data voice SIM

24 month plan
Unlimited UK texts & minutes

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Working abroad using a Business SIM plan with inclusive roaming.

Do business abroad for less

With a 24 month SIM plan with unlimited UK data, you can unlock exclusive roaming discounts. Choose inclusive roaming - for only the SIMs that need it - and pay less when you work in the EU or around the world. [2]

Not a business owner, and not self-employed? Shop SIM Only for Personal

More SIM plans with Three Business

Adaptable plans for teams of over 50

Discover Three Business Adapt. Up to 250 connections, bill analytics, and premium business support.

Business Data Only SIM plans

Work seamlessly, with unlimited 5G browsing, downloads, videocalls and more.


12 month plans

Unlimited SIM plan

Unlimited Data

12 month plan
Unlimited UK texts & minutes

 [1]
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Increasing to:

500GB data voice SIM

12 month plan
Unlimited UK texts & minutes

 [1]
 [1]
Increasing to:
80GB SIM Only Plan

80GB data voice SIM

12 month plan
Unlimited UK texts & minutes

 [1]
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Increasing to:

25GB data voice SIM

12 month plan
Unlimited UK texts & minutes

 [1]
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Increasing to:

3GB data voice SIM

12 month plan
Unlimited UK texts & minutes

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Increasing to:

1 month plans

Unlimited SIM plan

Unlimited Data

1 month plan
Unlimited UK texts & minutes

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Increasing to:

500GB data voice SIM

1 month plan
Unlimited UK texts & minutes

 [1]
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Increasing to:
80GB SIM Only Plan

80GB data voice SIM

1 month plan
Unlimited UK texts & minutes

 [1]
 [1]
Increasing to:

25GB data voice SIM

1 month plan
Unlimited UK texts & minutes

 [1]
 [1]
Increasing to:

3GB data voice SIM

1 month plan
Unlimited UK texts & minutes

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Increasing to:

Talk to our business experts

Discover Three+ rewards for business

Get the Three+ app for exclusive offers from brands like Uber Eats and Cineworld. Take out or eat in for less at local takeaways and restaurants, and access presale tickets to top UK festivals and gigs.

FAQs

Our business SIM plans are designed to cater for businesses of all sizes and budgets. Choose your plan duration from 1 to 24 months, your data allowance from 3GB to unlimited, and find a plan to cover whatever you need. This can include roaming and multi-line discounts, or for a more comprehensive package with 50+ SIMs, Three Business Adapt also offers executive business support and bill analytics.

If you have an international team or take your work abroad, you can choose a Boundless or Adapt plan with inclusive roaming options, or buy money-saving roaming Add-ons or Roaming Passes as and when you need them. Visit our Roaming help page to see what’s available.

Three Mobile Protect is our comprehensive mobile security solution for up to 25 devices, and can protect your business from phishing, malware, and advanced cyber threats. You can buy it with any Three Business plan. It also allows you to set data caps, and can cover your team whether they’re in the office, or working remotely. For mobile security for more than 25 devices, see our Mobile device management solutions

Yes, Three Business SIMs can be used in phones and tablet devices, but see here our cost-effective data-only SIM plans for iPads and Android tablets.

There are multiple benefits to choosing an eSIM over a physical SIM, though you can choose either, as long as your device is eSIM compatible. Because eSIMs are virtual SIMs already built into devices, setting them up is quick and easy. And if your device gets stolen, unlike a physical SIM, an eSIM can’t be removed or tampered with.

If you have a phone with dual SIM functionality, you can choose to have an eSIM and a physical SIM together, allowing you to use 2 separate numbers. Look up your device on our Device support page to check whether your device is eSIM compatible, and get more information on eSIMs on our Business SIM & eSIM support page.   

Why choose Three Business?

More about our network

According to Ookla®, our 5G's the fastest around. [3]