
Our focus at Atom is ensuring we provide simple and cost-effective services to those who wish to contract or freelance in the UK and internationally.
To that end, we offer Atom Freelance and Atom International, the banners under which we offer our Umbrella Company, Construction Industry Scheme, and international payroll services.
We use up-to-date technology and have a team of highly experienced staff who ensure our clients are free to enjoy the flexibility of the contracting and freelancing lifestyle.
Please email info@atomhub.co.uk to speak to the team about our services.

At AGPayroll we offer umbrella, CIS, Limited Company, and Fully Outsourced Payroll solutions with compliance at our heart.
We leverage cutting edge technology to streamline your payroll options. Our team of experts has developed a state of the art payroll software, mobile app and portal to meet the unique needs of your business. Our commitment to excellence doesn’t stop at technology, we understand that every business is unique which is why we offer personalised support from our team of payroll experts. Whether you have a question about tax regulations or need assistance with complex payroll scenarios, our knowledgeable staff are here to help.

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.
Pay Guardians operate a simple and efficient umbrella and PEO service for agencies and workers. Our processes are fully documented and comply wholly with employment and tax legislation leaving you free from the burden of ensuring yours and your temporary workers affairs are fully managed. Our team of qualified accountants and payroll specialists with years of experience will ensure piece of mind and provide the highest quality of personal service throughout.
Our industry knowledge and expertise is what sets us apart from our competitors. Coupled with our great customer service and friendly staff, you’ll find us very easy to work with for all of your payroll and compliance needs.
People Group Services (“People Group”) are a family owned business with a long history in the payroll and intermediary market. Headed by CEO Terry Hillier, himself a winner of many business awards over the past 10 years.
People Group trade under three key pillars; People Pay includes a range of fully compliant payroll options, ensuring workers are paid on time, every time and in the right way. People Engage is our workforce management software and contractor app, designed to make work easy for everyone. And People Compliance, our compliance software that increases business efficiencies and significantly reduces time to hire.
You can understand more about our expertise by staying up to date with our regular insight articles which you’ll find on our website below.

I4 have been in operation since 2005 and have partnered with over 10,000 businesses and paid over 35,000 contractors. Our services offer temporary workers and freelancers an opportunity to retain the correct amount of their hard-earned cash, without any of the overheads or risks of running their own companies or falling foul of IR35 legislation. i4 will look after the calculation, deduction and payment of all statutory payments for you. Get organised on the go with innovative and convenient solutions that free up your time to focus on doing what you do best. We have recently partnered up with ANDREW NOLAN MORTGAGES LTD to help contractors secure mortgages as it can prove difficult.

Champion Contractors is a specialist division of Champion Chartered Accountants, providing accountancy and tax support services to freelance contractors throughout the UK.
We understand the unique needs of contractors and deliver a bespoke service, which is tailored to their specific requirements. We have over 50 years of recruitment and accountancy experience which you will benefit from when using our umbrella/employment solution or contractor specific accountancy services.
If you decide to join the Champion umbrella/employment solution, you will be entitled to statutory payments and insurances including a personal accident scheme at no extra cost. Other benefits include:
Along with partners from the employment law, insurance and financial service sectors, the Champion Contractors team proactively manage administrative burdens and assist clients to maximise their financial rewards, whilst ensuring that they remain compliant at all times.


Payroll Service Provider that ensures quick and efficient payments.

Ovio is the workforce partner that gets it. We support recruitment agencies, contractors and UK businesses with fully compliant payroll, workforce engagement solutions and funding, all delivered with a human touch.
Ovio was created to challenge the ordinary, to put people first, cut through complexity, and bring trust back to workforce solutions. We’re not just here to process payroll (thats the easy bit). We’re here to build something better: a company driven by values, fuelled by excellence, and united by a single rhythm.
Our platform, myOvio, is your visibility engine. We monitor contractor status, onboarding compliance, client approvals, payroll checks and supply chain health in real time. It’s everything you need to keep your staffing compliant, audit-ready, and confidence-fuelled.