
Why Core?
We put you first! We have a team of experts here to ensure you have all the support you may want or need through every process. We work hard to ensure our reputation is second to none and you can rest assured that compliance, efficiency, and professionalism are key values we uphold here at Core. We are an accredited member of Professional Passport and a tier one founding member of trade association body Prism.
Lauren Baker also sits on the executive board of Prism as their Payroll Intermediary Representative, meaning we are always ahead of the curve when it comes to legislation changes. We work with thousands of contractors in both the Public and Private Sectors and are specialists in IR35, allowing you to safely navigate this legislation and get on with what you do best, your contracting work. We would welcome a call; Matt and the team would be delighted to hear from you on 0800 211 8121. You’ll receive:
• Dedicated Relationship manager
• Set up (paperless) in as little as 24 hours with no exit fee
• Online portal for payslips and document viewing
• IR35 assessments
• Weekly, Bi-Weekly or Monthly payroll services
• Insurance cover, Professional Indemnity up to £5 million, Employers Liability up to £10 million, Public Liability up to £10 million
• Workplace pension via NOW or Salary Sacrifice
• Full statutory employment rights

InvictaPay offers a reliable and professional payroll practice. Our driven and knowledgeable approach means we are the best people to handle your payroll, allowing you the freedom to flourish and do what you do best.
With over 20 years’ experience, our focus on compliance is second to none. We’re renowned for delivering exceptional support and customer service with excellent reviews across Trustpilot and Google. We’re a leading umbrella company and provider of accountancy, tax, candidate screening and international payroll services.
Voted the UK’s Best Umbrella Company in The Contracting Awards multiple times, our award-winning umbrella company supports salary sacrifice contributions into a personal pension plan whilst passing back 100% of the employer NI saving to our contractors.

Award winning, forward thinking payroll provider, putting workers first at all times

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.

Ricson Services was set up in 2004 to provide a professional and personal umbrella service to contractors in the UK temporary market. Run by Director/Shareholders who bring together experience of Customer Services, Payroll, HR, Health & Safety and Finance to provide clients with products and services that meet their needs.
We provide umbrella employment services through our UK compliant companies Hapstone Ltd, Rowcastle Ltd and Zarlon Ltd.
The Ricson Services Umbrella Company offers:
All companies are registered in England and are fully compliant with UK tax laws Straightforward online registration process No joining or leaving fees and contractors only pay for weeks they work Same day payments as standard Professional Indemnity and Employers Liability insurance cover Sick, maternity & paternity pay (subject to qualifying conditions) Advance payments available Why not give us a try to find out?

Your trusted partner, experts in Legislation, Contracts, Insurances and Payroll. Honesty and transparency are at the heart of our operations and with over 25 years experience in contractor engagement, we get it. We offer a tailored and consultative approach to our workers, agencies and end clients and we'll be your first point of contact for any advice or guidance you need.

With over 20 years of experience running recruitment agencies, Phillips Payroll understands the unique challenges of managing temporary payroll and delivers services designed to make workforce management simple, compliant, and dependable. We provide fully managed payroll and workforce solutions to the recruitment sector, ensuring contractors and temporary workers are paid correctly and on time, every time.
We process multiple pay methods including PAYE (Umbrella & PEO) and Construction Industry Scheme (CIS). Our comprehensive service covers onboarding, verification, tax and NI deductions, CIS returns, payslip production, and payment execution, removing administrative and compliance burdens from our clients.
At Phillips Payroll, we pride ourselves on delivering exceptional customer service, with a dedicated and responsive team that ensures every client and worker receives the support they need. Our compliance-first approach, combined with flexible engagement models and a genuine commitment to service excellence, ensures transparency, reduces risk, and provides a reliable, trusted solution for both clients and workers.

SG Umbrella is run by experienced contractor accountants, designed for contractors and backed by the UKs leading contractor compliance body, the FCSA. Rest assured that you’re getting the best advice and the best service:
SUPER FAST PAYMENTS Once your client or agency has paid us we turn the payments around without delay – so you get your money as quickly as possible
TRULY ALL INCLUSIVE PRICING There are no hidden costs…everything you need is included in your monthly or weekly fee
EXPERIENCE AND KNOWLEDGE Our team are the very best in the industry with years of contractor accountancy and taxation experience. Their qualifications include ICAEW, ACCA, AAT, ATT and CTA and your fee entitles you to unlimited advice and support, including with IR35 and tax planning
GROW AND FLEX WITH US Set up a Limited company with SG Accounting and switch between the two if needed due to IR35. Just ask which set-up would be best for you.
REAL PEOPLE EVERY TIME You speak directly to a real person when you call or email us. No call centre or “press button 1 for this and button 2 for that” service
NO MINIMUM CONTRACT We are so sure you’ll love our service we don’t have a minimum commitment. Fees are deducted from your pay so there are no up-front costs
COMPLIANCE AS STANDARD We’re FCSA Accredited, assuring the highest standards of compliance. As contractor experts, we can advise you on IR35 and Tax matters too
WELL KNOWN AND ESTABLISHED We have been established for more than 20 years dealing specifically with contractors, consultants and freelancers.
