Unlimited data
Switch to
Boundless
Get 10+Unlimited data SIMs for £5 each a month.
Unlimited data.
Boundless value.
There’s never been a better time to join us. With Unlimited calls, texts and data, your team can stay connected at consistently competitive prices.
The more Unlimited SIM plans you buy, the more you'll save with our Boundless offer. Whether you’re a team of 2 or 200, our 24 month SIMs are just £5 each a month. That’s up to 5 times cheaper than our biggest competitors. It's the perfect way to switch your business to Three.
| SIMs | Monthly on 24 month plan | Per SIM | Saving |
|---|---|---|---|
| 1 | £15 | £15 | *30% cheaper than our biggest competitors' |
| 2+ | £20 | £10 | Save £10 a month vs buying individual SIMs |
| 5+ | £37.50 | £7.50 | Save £37.50 a month vs buying individual SIMs |
| 10+ | £50 | £5 | Save £100 a month vs buying individual SIMs |
Contact our team to find out about 12 month plans. Price excludes VAT at 20%.
*Price comparisons based on prices shown on Vodafone, EE and O2's website for individual 24 month unlimited SIM only plans as of 18 June 2021. Verify at three.co.uk/terms/business
Chat to our team to buy.
Mon-Sat, 09:00 to 18:00
Closed Sundays and bank holidays
Chat now
Looking for a shorter contract?
Check out our Business SIM deals for different plan lengths and data options.
How to buy
Call us
337 free from your Three phone
or 0800 033 8022
Mon-Fri, 08:00 to 20:00
Saturday, 09:00 to 18:00
Closed Sundays and bank holidays
Need help with your account?
Call 337 free from your Three phone or 0800 033 8033
Mon-Fri 08:00 to 20:00 / Sat & Sun 09:00 to 18:00
Want more help?
Take a look at our Online business help
Why choose Three for Business?
We beat our biggest competitors’ prices.
Our combined 3G & 4G network covers 99% of the UK outdoor population.
According to Ookla, our 5G's the fastest around.
Terms and Conditions
Boundless Business Offer is available to business customers who are purchasing or upgrading to Three Business 12 and 24 month 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) the customer wishes to purchase. Prices vary between 12 and 24 month plans. Boundless Business Offer not available in conjunction with any other offer. See full terms for details: Terms & Conditions | Three.