The Best UK Business eSIM for Modern Teams.
Give every employee a dedicated UK business number on their own phone — activated in 60 seconds, managed from one dashboard, on one invoice.
Your Team Plan
Configure your seats below
1 Consolidated Invoice
Stop processing employee mobile receipts. One simple charge on one company card.
Instant Seat Reassignment
Reallocate seats instantly if employees leave, protecting client relationships.
Cancel anytime. 7-day WhatsApp verification guarantee.
Looking for a single work number for yourself? See personal plans on our homepage →
The Hidden Cost of Company Handsets
The average business mobile contract with a handset costs around £45 per employee per month. That's before you factor in the upfront cost of the device, the admin of managing contracts, chasing upgrades, and dealing with lost or broken phones.
And at the end of it all? Your employee still uses their personal phone for half their work calls anyway.
- 5 employees: ~£2,700/year
- 10 employees: ~£5,400/year
- Plus handsets: add £300–£1,200 per device upfront
That's a significant chunk of money leaving your business every year. SecondSim solves the problem at a fraction of the cost.
Centralized Team Management: Provision, reassign, or cancel lines in 30 seconds.
SecondSim is a real UK telecoms operator. We give each member of your team a genuine carrier-grade mobile number, not a VoIP app, not a virtual workaround, delivered as an eSIM directly to their existing smartphone.
How it works for your team
Purchase Seats
Select your team plan and add seats as you scale. Keep all mobile communications under unified, central billing.
Invite Employees
Enter employee emails in your dashboard. SecondSim instantly fires secure, 1-click installation invites to each device.
Instant Self-Activation
Employees tap the link or tap the 1-click link to activate the business eSIM on their own phone in under 2 minutes.
Reassign & Lifecycle Control
Pause or reallocate numbers instantly if an employee leaves. You retain the number and protect your client relationships.
Real Stories: How teams and solo founders switch off
See how UK business owners separate their personal lives from client demands.
"We deployed SecondSim to our team of 15 site managers. The ability to instantly reassign numbers when someone leaves, without dealing with Vodafone support, has saved us hours of admin."
Caroline
Operations Manager
"Being constantly available to everyone is really overwhelming. Before SecondSim I would get overwhelmed by WhatsApp. I turned off read receipts as I didn’t want clients to think messages were being ignored. For my clients I’ve framed it as a new priority number, a hotline where they don’t get lost."
That Girl Friday
Business Support for Solopreneurs
"Super smooth and so simple - I'm able to juggle my personal and multiple side-gigs without carrying around a second phone or worrying about expensive contracts."
Mike
Founder
The £5.00 Business Seat: Professional UK mobile numbers at a fraction of a contract price.
| Team Size | Traditional Contracts + Handsets | SecondSim | Annual Saving |
|---|---|---|---|
| 3 employees | £1,620/year | £180/year | Save ~£1,440 |
| 5 employees | £2,700/year | £300/year | Save ~£2,400 |
| 10 employees | £5,400/year | £600/year | Save ~£4,800 |
| 20 employees | £10,800/year | £1,200/year | Save ~£9,600 |
Based on standard business contract cost of £45/month per employee vs SecondSim billed from £5.00/month per seat on a yearly plan.
That enormous saving doesn't even include the cost of handsets which at £500–£1,000+ per device adds up astronomically fast for a growing team.
And unlike a traditional contract, there's no 24-month lock-in. Add a seat when you hire. Remove one when someone leaves. Pay only for what you actually need.
One Dashboard, Zero Friction. Everything your operations team needs to scale.
Real UK mobile numbers
Not VoIP. Not virtual. Genuine carrier-grade numbers that work perfectly with WhatsApp Business, banking apps, Stripe, PayPal, and every platform that strictly blocks cheap virtual numbers.
Unlimited UK calls & SMS
Every seat includes unlimited calls and texts. Your team can call clients, take orders, and handle enquiries — just like a normal business phone, without the monstrous business phone bill.
Instant deployment
New starter on Monday? Their number is ready before they sit down. Send the QR code directly from your dashboard with one click. Activated in minutes, zero IT involvement needed.
Central billing
One invoice. One simple monthly amount. Not five separate complex contracts with three different networks hitting your account on different dates. Simple and predictable.
Full control
Manage all your team's numbers from a single intuitive dashboard. See who's active, instantly add new seats, or cleanly remove leavers. You're always in complete control without being in the weeds.
BYOD by default
Your team use their own phones — which they prefer anyway. You stop buying, insuring, tracking, and replacing expensive hardware. That's a headache you never have to deal with again.
Verification & Trust Facts
Everything you need to know about your SecondSim service terms, ownership, and network.
- Network Ownership
- SecondSim operates natively on a Tier-1 UK network , ensuring full GSM compliance and passing legitimate verification checks natively.
- Number Portability (PAC)
- Yes, you own your number. You can port your SecondSim number out to any other UK network at any time using a standard PAC code.
- Renewal & Contract Terms
- Flexible rolling 30-day term. Cancel anytime with a single click in your dashboard. No hidden exit fees or long-term lock-ins.
- Customer Support
- 24/7 UK-based support available via live chat and email (support@secondsim.co.uk) to assist with any verification or setup queries.
Frequently Asked Questions
Do employees have to give up their personal number?
Not at all. SecondSim sits completely alongside their personal physical SIM on their existing phone. They simply have two active mobile numbers — one personal, one strictly for work — managed cleanly on the same device.
How many seats can I manage?
As many as you require. Add seats one at a time exactly as your team grows. There's no minimum or maximum seat limit.
Can I keep a number if an employee leaves?
Absolutely. You can easily "park" a number for just £2.99/month to deliberately preserve it, and then instantly reassign it safely to a new hire when the time eventually comes.
Is there a free trial?
We confidently offer a bulletproof 7-day money-back guarantee. If it doesn't work perfectly as promised, you get a full, unconditional refund.
Do the numbers work for WhatsApp Business?
Yes, absolutely guaranteed. Our numbers are 100% real, non-VoIP UK mobile numbers, which is the exact technical requirement needed to properly verify and run WhatsApp Business.