We are a specialist recruitment process outsourcing company, providing payroll and accounting services to contractors and recruitment agencies.

Why should you choose Carrington? Because Carrington cares.
We are not sales driven; we are people driven. In our 20 years of Umbrella service our contractor base has grown largely through personal recommendation as well as a bedrock of contractors who just keep returning for our quality service, and we are therefore without a sales team or a sales pitch. We are committed to transparent, prompt and communicative service. There are no hidden charges; there is support with the complexities of the thorny issues such as holiday pay and expenses. Our company values, objectives and philosophy are a direct reflection of the kind of service culture we want to inspire where everyone involved is driven to create a world-class next-generation workforce. Our service has been shaped to our valuable flexible workforce and we aim to provide unrivalled customer care throughout their employment with us. Simply put we strive to be the best and offer the greatest value to our contractors.

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.

Bishopsgate Group is an established, trusted umbrella company with extensive experience serving contractors across various industries, including Construction, IT, Education, Engineering, and Finance. The company is known for its transparent and contractor-centric approach, providing peace of mind and financial security to thousands of professionals across the UK.
Bishopsgate Group provides contracting services, including Umbrella PAYE, Self-employment, Self-employment CIS, Ltd Company, Professional Employment (PEO), and Bureau services.
Bishopsgate Group distinguishes itself by: • Prioritising contractor well-being and financial security above all. • Delivering ethical, transparent, and fully compliant payroll solutions. • Maintaining a high level of client retention and satisfaction through superior service and trust. • Supporting recruitment agencies and contractors with a smooth, efficient process that ensures compliance and mitigates risk for all parties involved

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.

Clipper Contracting Group was established with one thing in mind: to provide the highest levels of service for the provision of payment solutions to temporary workers. Our aim is to make the umbrella payroll experience ‘queryless’ for all of those involved.
Supporting workers in a range of sectors such as construction, healthcare education, engineering and logistics, Clipper Contracting Group provides a range of employed and self-employed solutions to support the UK’s contingent workforce.
We work with the best advisors, employ the best people and provide the best experience to ensure to both our workers and recruitment partners that we remain totally compliant and competitive in these ever-changing times.
Benefits of Clipper Contracting Group:
Simple, one-click, online registration – our bespoke registration CRM allows workers to complete registration online in a matter of minutes
Dedicated worker aftercare – from weekly phone calls to email contact, we stay in touch with our workers to ensure their experience is as expected.
Auto-updates to recruiters – track the status of your worker’s registration process with daily automatic updates by email
Advance payments – we can assist with advances on late timesheets all the way up to 4pm on a Friday
Personal accident insurance – as standard for all workers
Clipper Plus - access to discounted shopping deals and 24/7 online GP services
Exclusive deals with a range of partners – From discounts on gym memberships to tax returns, we have arranged a number of deals
Disaster Recovery – we have invested heavily in our systems to ensure we can continue to operate in any situation and guarantee payments to workers
Recruitment experience – founded by former recruitment professionals, we solely operate in and fully understand the recruitment industry and our service reflects this understanding.


Orca Pay Group is more than your typical UK umbrella company, our partnerships are built on compliance, honesty, transparency and a wealth of industry expertise. By combining cutting-edge, HMRC-approved technology with an attentive approach and modest umbrella company fees, we ensure we are the best umbrella company for contractors seeking straightforward, risk-free, and cost-effective engagements.
We pride ourselves on being a UK umbrella company that truly values its employees, for whom our rigorous processes guarantee fair tax treatment and full provision of rights, paving the way for continued, fruitful engagements.
We are immensely proud to be the first UK umbrella company to offer all of our umbrella employees full and transparent payslip audits on a payroll-by-payroll basis, ensuring that our umbrella employees can see that they have been paid correctly and compliantly every time they are paid.
This approach protects and ensures all holiday payments, pension payments and all deductions are calculated and paid to the penny. There is no better guarantee for a contractor, and why we are proud to live by our business motto, "Trust through transparency".

Clockwork Contracting – Precision in Payroll, Excellence in Service
Clockwork Contracting is a proud, certified member of SafeRec—one of the first umbrella companies to achieve this certification. We are committed to continuous improvement, always seeking innovative solutions that elevate industry standards for the benefit of contractors and agencies alike.
Why Choose Clockwork?
Low Contractor Fees – Unlike many competitors, we keep costs fair by forgoing large sales teams, relying instead on the trust and recommendations of our clients and contractors. This means overheads are lower and savings can be passed to our contractors. Seamless Payroll Experience – Our focus is on delivering a smooth, efficient, and hassle-free payroll service from start to finish. Swift Problem Resolution – We understand that errors can be stressful. That’s why we prioritise rapid response times with short SLAs, ensuring that mistakes become swift solutions.
At Clockwork Contracting, we don’t just provide payroll services—we set the standard for reliability, efficiency, and professionalism.