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Business SIM Only deals

Tailor your SIM plan to the way you do business

  • Flexible plans with single SIMs from £7/month, or get multibuy savings
  • Inclusive roaming options on 24 month plans with unlimited data
  • Choose as much data as you need - all with 5G
Business SIM with unlimited data and flexible options.

Choose your contract length

24 month plans

500GB data

24 month plan

Get 500GB for the price of 25GB

£10 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 500GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

49 EU destinations

3-9 Unlimited Data SIMs + Go Roam in Europe

24 month plan

Limited time offer

£12 .50  [1]
per SIM a month
Was £16
Increasing to:

What's included:

  • Unlimited UK data, texts & minutes
  • Available as an eSIM or physical SIM
  • Go Roam in Europe (49 destinations)

49 EU destinations

Unlimited data + Go Roam in Europe

24 month plan

Limited time offer

£19 .50
per SIM a month
Was £22.00
Increasing to:

What's included:

  • Unlimited UK data, texts & minutes
  • Available as an eSIM or physical SIM
  • Go Roam in Europe (49 destinations)

Unlimited data 

24 month plan

£17 .00  [1]
per SIM a month
Increasing to:

What's included:

  • Unlimited UK data, texts & minutes
  • Available as an eSIM or physical SIM

80GB data 

24 month plan

£11 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 80GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

25GB data 

24 month plan

£10 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 25GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

3GB data 

24 month plan

£7 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 3GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM
Working abroad using a Business SIM plan with inclusive roaming.

Do business abroad for less

With a 24 month Boundless multibuy SIM plan, 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. [4]

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 data

12 month plan

£20 .00  [1]
per SIM a month
Increasing to:

What's included:

  • Unlimited UK data, texts & minutes
  • Available as eSIM or physical SIM

500GB data

12 month plan

£17 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 500GB UK data,
  • Unlimited UK texts & minutes
  • Available as eSIM or physical SIM

80GB data

12 month plan

£15 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 80GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

25GB data 

12 month plan

£12 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 25GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

3GB data 

12 month plan

£8 .00  [1]
per SIM a month
Increasing to:

What's included:

  • 3GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

1 month plans

Unlimited data

1 month plan

£24 .00  [1]
per SIM a month

What's included:

  • Unlimited UK data, texts & minutes
  • Available as eSIM or physical SIM

500GB data

1 month plan

£23 .00  [1]
per SIM a month

What's included:

  • 500GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

80GB data

1 month plan

£21 .00  [1]
per SIM a month

What's included:

  • 80GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

25GB data 

1 month plan

£18 .00  [1]
per SIM a month

What's included:

  • 25GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

3GB data 

1 month plan

£13 .00  [1]
per SIM a month

What's included:

  • 3GB UK data
  • Unlimited UK texts & minutes
  • Available as an eSIM or physical SIM

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?

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