Multibuy business SIM deals

Get up to 50 unlimited data SIMs, with optional inclusive roaming. The more you buy, the bigger the discount.

Add inclusive roaming from £4.17 extra a month per SIM

 

Find your perfect plan in 3 easy steps:

Choose your contract length, and the number of 5G-ready unlimited data SIMs you need.

Mix & match inclusive roaming / non-roaming business SIMs to fit your needs.

Get in touch with our UK business sales team.

Work out your monthly SIM costs

Choose your contract length

24 month SIM plans with unlimited data

80GB SIM Only Plan

1 SIM

24 month plan
Unlimited UK data, texts & minutes

£24 .00  [1]
a month per SIM
Increasing to:

Unlimited Data SIM + Go Roam in Europe

24 month plan
Unlimited UK data, texts & minutes

  • EU roaming included
Save £76
£21 .00  [1]
a month per SIM
Was £24.17
Increasing to:
Unlimited SIM plan

Multibuy 2 SIMs

24 month plan
Unlimited UK data, texts & minutes

£14 .00  [1]
a month per SIM
Increasing to:

Multibuy 3 to 9 SIMs

24 month plan
Unlimited UK data, texts & minutes

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

Multibuy 10 to 19 SIMs

24 month plan
Unlimited UK data, texts & minutes

£9 .00  [1]
a month per SIM
Increasing to:

Multibuy 20 to 50 SIMs

24 month plan
Unlimited UK data, texts & minutes

£8 .50  [1]
a month per SIM
Increasing to:

Find your business SIM plan with our cost calculator

Choose your number of unlimited UK data SIMs – you can mix & match inclusive roaming / non-roaming SIMs as required. We’ll calculate your monthly cost on a 24 month plan.

Use our multi-line Business SIM calculator to find the right plan for your business.

Roaming options available

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

SIMs with inclusive EU roaming

Up to 50 SIMs

24 month plan

48 roaming destinations

£4 .17  [1]
extra a month per SIM

What's included:

  • 49 Go Roam in Europe destinations
  • Up to 12GB data [2]
  • Call & text back to the UK or other Go Roam in Europe destinations [2]

SIMs with inclusive Around the World roaming

Up to 50 SIMs

24 month plan

163 roaming destinations

£8 .33  [1]
extra a month per SIM

What's included:

  • 163 destinations (including all 49 Go Roam in Europe destinations)
  • Up to 12GB data [2]
  • Call & text back to the UK [2]

12 month SIM plans with unlimited data

80GB SIM Only Plan

1 SIM

12 month plan
Unlimited UK data, texts & minutes

£25 .00  [1]
a month per SIM
Increasing to:
Unlimited SIM plan

Multibuy 2 SIMs

12 month plan
Unlimited UK data, texts & minutes

£16 .00  [1]
a month per SIM
Increasing to:

Multibuy 3 to 9 SIMs

12 month plan
Unlimited UK data, texts & minutes

£14 .00  [1]
a month per SIM
Increasing to:

Multibuy 10 to 19 SIMs

12 month plan
Unlimited UK data, texts & minutes

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

Multibuy 20 to 50 SIMs

12 month plan
Unlimited UK data, texts & minutes

£10 .50  [1]
a month per SIM
Increasing to:

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

Why choose a multibuy business SIM plan?

Empower your growing business with multibuy SIM plans designed for flexibility and scalability. Mix & match inclusive roaming and non-roaming SIMs to suit the way you work.

Connect abroad for less

Choose SIMs with inclusive business class roaming, and roam in the EU or around the world for less. [2]

5G SIMs

Choose between physical SIMs or eSIMs on the UK's Fastest 5G Network [3], depending on your devices.

Big value for your business

The more you need, the less you pay per SIM, even when you buy over time. Choose SIMs with or without roaming.

Unlimited UK data, calls, texts

So your whole team can stay online and in touch, wherever they're working from.

Hassle-free switching

Enjoy a seamless transition to Three Business, without disruption to your team.

Dedicated business support

Our expert team are here to support you at every step, whatever you need.

The Big Network for your business

New to Three Business? Use our coverage checker below to see if you can access The UK's Fastest 5G Network [3].

Check coverage in your area

How secure is your business?

Every 19 seconds a small business in the UK is successfully hacked.[4]

45% of medium-sized businesses in the UK have experienced cyber crime in the last 12 months. [5]

Only 23% of businesses believe they are adequately protected. [6]

More with Three Business

FAQs

Anyone with their own business age 18 and over (including sole traders) is eligible for a Boundless plan, and can get up to 50 unlimited business SIMs.

Boundless SIMs come with unlimited UK data, calls, and texts, and offer you the benefit of multi-line discounts. So the more you need, the less you pay per SIM, up to 50 SIMs. Choose SIMs with inclusive roaming in Europe and around the world (fair use policies apply  [2]), or a combination of SIMs with and without roaming – you’ll still get the Boundless discount. 

Yes, you can bring your number or numbers to Three Business via a hassle-free switching process. See our Bring your number to Three Business page for all the details.

The easiest way to pay your bill is by Direct Debit, which also saves you £5 a month. There are also other ways to pay, including via credit card, debit card or bank transfer. See our Ways to pay your bill page for all the information you need.

Yes, you get the benefit of the multi-line discount even when you buy SIMs over time, as well as when you combine SIMs with and without roaming. You can find all the details on our Boundless terms page.

Why choose Three Business?

More about our network

According to Ookla®, our 5G's the fastest around. [4]

Terms and Conditions

Multibuy Business Offer (Boundless) is available to business customers who are purchasing or upgrading to Three Business 12 and 24 month Unlimited SIM-only plans. Participants who purchase Unlimited SIMs on a 12 or 24 month plan from Three (whether purchase is made in-store, online, or by telephone via our contact centre) on or after 1 May 2021 are eligible to unlock a discounted price based on the number of 12 or 24 month Unlimited SIMs (as applicable) already in existence at the time of purchase and the number of additional 12 or 24 month Unlimited SIMs (as applicable) the customer wishes to purchase. 

Prices vary between 12 and 24 month plans. Multibuy Business Offer not available in conjunction with any other offer. See full terms for details: Terms & Conditions | Three.