
NumberMill knows more than most how important payroll and related compliance is to the sector. More than ever and with the introduction of the Criminal Finance Act September 2017, it is even more important for agencies to have the reassurance that their partners meet high standards of compliance and eliminate risk in the supply chain. NumberMill truly has the qualifications, skills, and expertise to keep both contractors and agencies compliant whilst being agile, offering the best commercial, honest & transparent advice, in a constantly changing legislative environment.

As one of the UK’s largest and most trusted Umbrella companies, we combine cutting-edge systems with deep industry expertise to ensure your pay is accurate, reliable, and always on time.
We’ve been supporting contractors and recruitment agencies since 1989, paying over 10 million people to date. Our commitment to exceptional customer service, compliance and payroll accuracy has earned us consistently excellent Trustpilot reviews making us the trusted choice for contractors across the UK.
Why Workwell?

Sapphire prides itself on providing unrivalled customer service and employee support to workers and recruitment agencies in the temporary labour market. With our specifically tailored range of Employed and Self-Employed solutions, we are here to reduce the burden of working on and between temporary assignments and provide a level of security, benefits and reassurances whilst getting on with everyday life.
Why Sapphire?
Care – We understand that money and finances keep our world ticking. So paying our employees and subcontractors on time and accurately is our number one priority and something we have built our reputation around. Providing timely information to our clients and consistently exceeding expectations has seen us organically grow our reputation.
Compliance – Our team of experts are all aware of the challenges facing temporary workers and the need to remain compliant with current legislation is key. We view every change as an opportunity to pro-actively keep our customers, employees and clients up to date with changes which may impact them and their businesses.
Partnership – We are more than just an Accountancy, Payroll and Employment services provider. We view ourselves as an extension to the people and businesses we engage with, providing all of the support required in a two-way relationship.
Support – Everyone is different, and we completely understand this! We are flexible in our approach and can adapt and tailor our support to suit every circumstance. We pride ourselves on removing the burden from customers, employees and clients so they can concentrate on what is important to them.

Putting Contractors First, Every Step of the Way
With over 20 years of experience supporting contractors and freelancers, SmartWork combines the reassurance of full compliance with the personal service you’d expect from a team that genuinely cares about your success.
Compliance You Can Trust
We’ve held FCSA accreditation for 10 years and have been an APSCo Trusted Partner for over 20 years – certifications that are rigorously audited annually to protect contractors and give recruitment agencies complete confidence.
Our ISO 27001 certification protects your data security, while our SafeRec certification helps recruitment partners minimise compliance risk across the supply chain.
A Service Loved by Contractors
Our commitment to supporting contractors is reflected in our outstanding Google and Trustpilot reviews. When you work with SmartWork, you’re not just a number; you get a dedicated account manager and a team that’s there to help every step of the way.
What We Offer:
For Contractors:
Get paid faster – Same-day payments at no extra cost
Stay in control – Secure online portal for payslips, timesheets, and documents
No hidden costs – Transparent pricing with no setup or exit fees
Fully protected – Comprehensive insurance including Public & Employers’ Liability, Professional Indemnity, and Medical Malpractice
Proper employment – Full contract of employment with all statutory benefits
Life perks – Referral reward, private pension support, and access to contractor- specialist mortgages Quick to start – Set up in as little as 15 minutes, online or by phone
For Recruitment Partners:
Real-time payroll verification – SafeRec certification for live compliance checking
Dedicated agency support managers – Your direct line to our team
Advance payment facilities – Available for preferred partners
Trusted track record – Featured on over 100 Preferred Supplier Lists
Seamless contractor experience – Making your candidates’ journey smooth and compliant
Click on one of the links to the left to contact us; we’d love to hear from you.


Quick and simple telephone or mobile app registration. Same day payments with extended hours payroll. Instant updates via our mobile app making payroll transparent - Invoices, payments, and payslips can be accessed anytime, anywhere. Unbeatable service with extended opening hours and available LiveChat. PayePass and Professional Passport accredited providing the whole supply chain confidence with payroll standards. Access to a range of discounts from high street stores and retail brands such; Tesco, Expedia, Jet2 and many more.

Compass is leading the way in umbrella employment. Whether you are new to contracting or have been one for some time, Compass has the experience and range of solutions to ensure you are provided with the solution that works best for you. We are committed to providing you with hassle free payment solutions, excellent customer care, market leading technology and reliable compliance based on expert knowledge and industry experience.

Here at Danbro, we’re passionate about people; putting contractors like you at the heart of what we do. Having started life as a small, family-run firm with a handful of clients, we now provide specialist financial, payroll, accounting and employment to thousands of contractors and self-employed people across the UK. Danbro is a name you can trust, as our reviews and accreditations attest. Our umbrella employment solution is designed with you in mind. We’ll do everything we can to reduce your administrative burden and make sure you have the support you need for your contracting career. Our experienced team pay thousands of contractors every single week, so you can rest assured you’ll get paid in full and on time, every time. Join today and combine all the benefits of permanent employment with the freedom of running your own business.
You'll receive:
Likewise, our contractor accountancy plans include access to award-winning software, as well as:
Our fees are fixed and, what’s more, you’ll also be assigned your very own Personal Accountant because, to us, accountancy is about more than just number crunching. It’s about developing great relationships, overcoming obstacles, providing tangible solutions, and enabling people to achieve their potential.

Looking for a fast, hassle-free way to contract? No Worries Red Umbrella makes contracting effortless—with instant payroll, no IR35 worries, and zero admin stress.
We’ve been helping contractors get paid quickly and compliantly since 2005. Our FCSA-accredited umbrella service guarantees you’re working with a fully compliant, transparent, and reliable provider, trusted by agencies, end clients, and thousands of contractors across the UK.
Why Choose No Worries Red Umbrella? ✅ Get Paid Fast – Daily payroll runs mean you get paid the same day we receive funds from your agency. No delays, no hassle. ✅ Zero Setup or Exit Fees – No lock-in periods, no hidden costs. Join or leave whenever you want. ✅ Fully Transparent – Fixed, all-inclusive fees with no surprise deductions. We handle all tax, NI, and compliance so you don’t have to. ✅ 100% Online & Instant Setup – Get started in under 10 minutes and submit timesheets from anywhere. ✅ Expert Support – Our team of payroll, tax, and compliance specialists are on hand to make contracting smooth and stress-free. ✅ Free Insurance Cover – £10M Employers’ Liability, £5M Public Liability, and £5M Professional Indemnity included at no extra cost. ✅ Pension & Perks – Access flexible salary sacrifice pension contributions and tax-saving schemes like Cycle to Work.
Whether you're new to umbrella contracting or switching from another provider, No Worries Red Umbrella gives you a stress-free, fully compliant payroll solution that works for you.
Get set up today and start getting paid—fast, simple, no worries. 🚀

Payments Pro is designed to ensure that you get the most reliable, most efficient, and most rewarding umbrella service on the market. We offer an unparalleled level of worker support and incentives that will help ensure that you never want to leave!