Smart O2 SIM Only deals made for small business
Cut costs without cutting corners – keep your existing phones and enjoy reliable O2 coverage, simple pricing, and friendly UK support. With flexible plans and spend caps, you’re always in control.
Discover the freedom and incredible value of Business SIM Only deals with Daisy today.
New customers paying by Direct Debit only. Inclusive minutes do not include calls to Lyca, Lebara or any mobile virtual network operator based outside the UK GSM cellular networks. Saving values calculated against Daisy RRP pricing. All prices exclude VAT at 20%. Additional contract terms are available please call 0808 304 3822 for details.
Compare Our O2 Business SIM Only Deals
5GB SIM |
15GB SIM |
25GB SIM |
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|---|---|---|---|
 Monthly cost |
£10.00per month | ex. VAT | £12.00per month | ex. VAT | £13.50per month | ex. VAT |
 Data allowance |
5GB | 15GB | 25GB |
 UK calls |
Unlimited | Unlimited | Unlimited |
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EU calls |
– | – | – |
 UK SMS |
Unlimited | Unlimited | Unlimited |
 Free EU roaming |
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 Upgrade your plan any time |
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 Set spending cap |
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| Buy Now | Buy Now | Buy Now |
Need more data? Pick from our biggest data plans
Our top SIM only deals with serious data – built for business without boundaries.
New customers paying by Direct Debit only. Inclusive minutes do not include calls to Lyca, Lebara or any mobile virtual network operator based outside the UK GSM cellular networks. Saving values calculated against Daisy RRP pricing. All prices exclude VAT at 20%. Additional contract terms are available please call 03300 534 125 for details.
Compare Our O2 Business SIM Only Deals
50GB SIM |
125GB SIM |
UNLIMITED SIM |
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|---|---|---|---|
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Monthly cost |
£17.00per month | ex. VAT | £20.00per month | ex. VAT | £23.00per month | ex. VAT |
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Data allowance |
50GB | 125GB | Unlimited GB |
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UK calls |
Unlimited | Unlimited | Unlimited |
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EU calls |
100 mins | 500 mins | 2000 mins |
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UK SMS |
Unlimited | Unlimited | Unlimited |
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Free EU roaming |
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Upgrade your plan any time |
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|
|
Set spending cap |
|
|
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| Buy Now | Buy Now | Buy Now |
Why Daisy for Mobile
We’re the UK’s largest independent provider of business mobile solutions — offering SIM Only plans designed specifically for small businesses.
Reliable O2 network coverage, flexible data plans, and pricing built to keep your business connected and in control.
Coverage
Powered by O2, our SIMs deliver excellent 4G coverage across the UK, with growing 5G reach — so your team stays connected wherever they work.
Extras
Access O2 Priority rewards, early ticket sales, exclusive offers, and free Wi-Fi at thousands of UK locations — perfect for working on the move.
Control
Manage your mobiles with My Account — view invoices, track usage, set spend caps, and avoid bill shocks with one simple dashboard.
Support
Friendly, UK-based customer service is always here to help your business stay connected and productive.