
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.

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

MARVEL PAYROLL are a specialist payroll provider, supplying contractors and temporary workers with fully compliant payroll models. Each payroll model is designed to benefit a contractor by paying them in the most tax efficient manner whilst maintaining full compliance. All of the models we offer are provided in a timely and efficient way and backed up by a five star customer service team.

Omnia is your professional, compliant Payroll Partner providing a range of outsourced services to help with the management, retention and well-being of your temporary contractors and permanent staff. Omnia are also FCSA accredited for both CIS and Umbrella PAYE.

MainPay is a leading provider of services to agency workers across the UK. We pride ourselves on our outstanding service, our people and bespoke systems.

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


Payroll Service Provider that ensures quick and efficient payments.

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.

Inspired Umbrella was formulated from the disenchantment of the umbrella world which inspired us to create a company that would tick all the boxes with impeccable service to boot!