Unlimited Business SIMs by Nerdster

Simple. Unlimited. Designed for Growing Teams.

Join the award-winning O2 network with Nerdster – your trusted IT & mobile partner. Simple Pricing. Unlimited Everything.

All plans include Unlimited UK calls, texts & data

BASIC

Best for UK-only businesses

£15
/month (ex. VAT)
What’s Included:
  • Unlimited UK calls & texts
  • Unlimited UK data
  • O2 4G/5G network
  • No top-ups required
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STANDARD

Best for teams travelling in Europe

£21
/month (ex. VAT)
Everything in Basic, Plus:
  • EU roaming included
  • Use your allowance across EU
  • Priority customer support
  • Microsoft 365 integration
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🌍 GLOBAL COVERAGE
PREMIUM

Best for executives / global teams

£52.50
/month (ex. VAT)
Everything in Standard, Plus:
  • Unlimited International Calls Worldwide
  • Worldwide Data Roaming (75+ countries)
  • USA, Canada, Australia, Asia included
  • Premium device security (MDM + AI threat monitoring)
  • Dedicated account manager
  • Priority 24/7 support
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Fair Usage & Terms

Designed for simplicity and transparency. Here’s what you need to know.

Truly Unlimited Allowances

Our unlimited bundles are genuinely unlimited for appropriate business use on smartphones and voice-enabled devices.

INAPPROPRIATE USAGE INCLUDES:
  • Usage outside normal commercial practice
  • Automated or bulk messaging systems
  • Fraudulent, abusive, or illegal activity
  • Regular tethering/hotspot creation for other devices
  • Roaming outside UK exceeding 25GB/month

Roaming Fair Use

Inclusive roaming is built for business travellers who periodically work abroad, not permanent overseas use.

IMPORTANT TO NOTE:
  • Roaming usage measured over 4-month periods
  • Charges may apply if roaming exceeds domestic use
  • Excessive use (streaming, hotspots, large downloads) may be restricted
  • We reserve the right to manage bandwidth for fair network access

Pricing & Terms

All tariffs are subject to annual adjustments in line with RPI or CPI rates, with 30 days’ notice.

CONTRACT TERMS:
  • 12-month contracts: Early termination fees apply covering full line rental to minimum term
  • 30-day contracts: £30 (ex. VAT) one-off cease fee if disconnected, ported, or migrated
  • Tariff uplifts: Minimum 90-day commitment on uplifted tariffs
  • Third-party services: Costs for non-geographical, premium rate, or charity services passed through

Network Protection

To maintain service quality for all users, we prohibit certain equipment and usage types.

NOT PERMITTED:
  • SIM boxes or gateway equipment routing calls from fixed to mobile
  • Bulk SMS, voice, or data transmission equipment
  • Any equipment that damages or impairs the O2 network
  • Services will be suspended without notice if such equipment is detected

Subject to Change: All terms are subject to modification with at least 30 days’ notice. We’re committed to transparency and will communicate any changes clearly.

🎯

Designed for Businesses

Nerdster – IT, Security & Mobile for Modern Teams

📈

Scale from 1 to 500+ SIMs easily

Grow your mobile fleet as your business expands

💼

Manage mobiles alongside your IT services

Single provider for complete technology management

🤝

One provider for everything your business needs

IT support, cybersecurity, cloud services, and mobile

Ready to Switch?

Get a custom quote for your team. We’ll help you migrate from your current provider with zero downtime.

🚀

Free Migration Support

We’ll handle the switch from your current provider – no downtime, no hassle

💰

Volume Discounts Available

Special pricing for 20+ SIMs. The more SIMs you need, the better the rate

Quick Response

We’ll get back to you within 2 hours with a custom quote

Get Your Custom Quote

Fill in the form below and we’ll get back to you within 2 hours with a tailored quote for your business.

Business mobile plans

We’ll respond within 2 hours during business hours (9am-6pm Mon-Fri). For urgent enquiries, call 0330 043 7414.

Get Started with Nerdster

Tell us about your business needs

Cost Analysis

Discover potential savings in your IT infrastructure

Security Check

Evaluate your current security measures

Expert Insights

Receive tailored recommendations

"The assessment helped us identify key areas for improvement. We've reduced our IT costs by 35% since implementing the recommendations." - Tech Director, UK Manufacturing Firm

Your Cloud Readiness Score

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Free IT Infrastructure Assessment

Discover how to improve your business technology and cyber security

How do you currently manage your IT infrastructure?

Free IT Infrastructure Assessment

Discover how to improve your business technology and cyber security

How do you currently manage your IT infrastructure?

Free Cloud Readiness Assessment

Get your personalized cloud strategy in under 5 minutes

Cost Analysis

Discover potential savings in your IT infrastructure

Security Check

Evaluate your current security measures

Expert Insights

Receive tailored recommendations

"The assessment helped us identify key areas for improvement. We've reduced our IT costs by 35% since implementing the recommendations." - Tech Director, UK Manufacturing Firm

Your Cloud Readiness Score

Contact Details

Get a Quote

Get A Quote