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Exclusive offers for Boundless customers

Already a Boundless customer? We have exclusive offers for you. Get a great deal for your business that you won't find anywhere else.

24 month plan

Unlimited data, texts and minutes

For maximum savings, choose 10-15 SIMs
 

1 SIM

  • Unlimited data, texts & minutes
  • Online self-service

Per SIM
£12.50
a month [1]

Save £5.50 per SIM per month [2]

2 SIMs

  • Unlimited data, texts & minutes
  • Online self-service

Per SIM
£10.00
a month [1]

Save £2.50 per SIM per month [2]

3-9 SIMs

  • Unlimited data, texts & minutes
  • Online self-service

Per SIM
£8.00
a month [1]

Save £2.00 per SIM per month [2]

10-15 SIMs

  • Unlimited data, texts & minutes
  • Online self-service

Per SIM
£6.00
a month [1]

Save £1.50 per SIM per month [2]

Prices exclude 20% VAT

To make the most of this offer, you'll need a call back from one of our Business Account Executives.

We're beating our competitors' prices

EE

Savings between

£12.50 - £19.00
per SIM per month

Vodafone

Savings between


£15.00 - £21.50
per SIM per month

O2

Savings between

£11.50- £18.00 inc.3 months free
per SIM per month

As advertised on 13/10/2023 [3]

Why choose a Three Business SIM?

5G Ready SIMs

Access our 5G network at no extra cost

Personal Hotspot

Connect other devices

Simple switching

Moving your number over to Three is as simple as sending a text

Unlimited data

Endless streaming, browsing, and sharing in the UK

Like the look of this? Request a call back now, and one of our Business Account Executives will get back to you.

Why choose Three Business?

More about our network

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

Terms & Conditions

Boundless Business customer exclusive offer is available to existing business customers with 24 month unlimited Boundless SIM Only plans, and who are purchasing additional 24 month Boundless SIMs. Customers can only purchase this exclusive offer via a callback from Three, and are eligible to unlock a discounted price based on the number of additional 24 month unlimited Boundless SIMS (as applicable) they purchase. 

Boundless Business customer exclusive offer not available in conjunction with any other offer. See full terms for details: Terms & Conditions | Three.

  • Annual Price Increase

    Your monthly charge excludes VAT and includes a £5 discount for paying by a recurring method, such as Direct Debit. Each April, your Monthly Charge will increase by 4.5%. Please see an illustrative example below, showing how this would work if your Monthly Charge is £30. Please note this is not a representative example for your chosen plan. For more information, see Terms & Conditions | Three .

    Monthly Price until March 2024 - £30.00
    Monthly Price from April 2024 to March 2025 - £30 + £1.35 (4.5% of £30.00) = £31.35
    Monthly Price from April 2025 to March 2026 - £31.35 + £1.41 (4.5% of £31.35) = £32.76

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  • SIMs Offer

    Saving based on existing customer adding a line to their existing account compared to a brand new customer taking out a new Boundless SIM contract. Verify at three.co.uk/terms/business

    Return to reference

  • Competitor comparison

    Competitor comparison based on prices shown on Vodafone, EE and O2's website for single Unlimited Data SIMs only (24 month contract, excluding promotions) compared against Three pricing for 10-20 SIMs, 24 month contract. Prices exclude VAT. Verify at three.co.uk/terms/business

    Return to reference

  • Ookla Speedtest

    Based on analysis by Ookla® of Speedtest Intelligence® data for Q3-Q4 2023. Ookla trademarks used under license and reprinted with permission. Visit speedtest.net/awards/fastest-5g to find out more.

    Return to reference