
NASA Group is a specialist umbrella supplier based in Bristol, working exclusively within the contracting industry nationwide.
As well as being one of the most cost-effective in the industry, we pride ourselves on offering far greater value for our agency partners thanks to the unique way in which we collaborate with them. Rather than a typical ‘one-size-fits-all’ solution, we always ensure that our process is perfectly aligned with theirs so that the entire operation is as efficient as it can be. This benefits everyone in the supply chain including the recruitment agency, by enabling them to spend more time recruiting rather than payroll processing and problem-solving. It also allows the contractor to work more effectively as they fully understand the process and have far fewer questions or concerns. NASA Group goes above and beyond their duty as an employer.
This commitment continues throughout the entire agency relationship as we remain at the forefront of compliance and industry updates. Training agency staff on solutions and legislation is all part of the service, plus NASA Group will assist your business in preparing for legislative changes affecting your sector too. This helps to create a partnership far more valuable than a typical umbrella supplier.
We are always on hand to discuss how we can assist you, plus with regional account managers throughout the UK, we would be glad to talk in person too.

Welcome to Well Pay, a trusted and experienced umbrella company that has been supporting contractors and agencies for over 15 years. Our dedicated team of professionals brings a wealth of expertise to deliver a leading umbrella service that is accredited by Professional Passport.
We understand the importance of staying up to date with ever-changing IR35 legislation, and our team ensures that you remain compliant with the latest regulations. We provide comprehensive support and knowledge to help you navigate the complexities of the contractor landscape.
One of our key priorities is cost-effectiveness. We offer our compliant umbrella service with a low fixed margin, enabling you to maintain competitive costs. By partnering with us, you can provide your contractors with a reliable and cost-efficient solution while maintaining your competitive edge in the market.
At Well Pay, we are committed to delivering a seamless and compliant umbrella service that meets the needs of contractors and agencies alike. With our years of experience, Professional Passport accreditation, and dedication to cost efficiency, we are the trusted partner you can rely on to support your success.

With over 20 years of experience, Parasol has grown from providing umbrella payroll services to offering comprehensive employment and payroll solutions. During this time, we’ve supported more than 250,000 professionals and partnered with over 3,000 recruitment agencies and end clients.
We understand the critical priorities for your candidates, clients, and agency: exceptional support, on-time payments, and full compliance with HMRC regulations. These are at the heart of everything we do and are reflected in the loyalty of professionals who choose us year after year, as well as our long-standing partnerships with some of the most recognised names in recruitment. As a founding member of the FCSA and a company created by a contractor for contractors, Parasol makes getting paid simple for the agile workforce. Since our launch in 2000, our goal has been to empower contractors to maximise their careers by offering complete peace of mind through accurate, compliant, and reliable payroll services.
Speedy Onboarding
Getting started is simple. Agencies provide basic details and terms; contractors complete a quick Right to Work check via Trust ID (just three minutes). We handle all paperwork and contracts for a smooth process.
Compliance-First
As an FCSA founding member, we set the gold standard in UK tax, employment, and regulatory compliance—giving agencies and contractors complete peace of mind.
Security & Stability
We safeguard your data with Cyber Essentials Plus certification and maintain strong financial stability to ensure uninterrupted payroll services.
Trusted Guidance
Our expert teams offer tailored support, onboarding assistance, and training workshops—the largest agency and employee support network in the sector.

Harmond is a dynamic umbrella company that provides a comprehensive range of services. Specialising in streamlined operations, Harmond offers centralised support for payroll, compliance, and administration, allowing contractors and freelancers to focus on their core work.

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.

SmartWork has over a decade of knowledge and experience within the contracting sector. We provide a fully compliant solution to safeguard the interests of its umbrella employees, recruitment business and clients alike. SmartWork is a trusted, reliable, payroll provider which offers umbrella & PAYE solutions, always ensuring excellent customer service at competitive rates. We work with recruitment businesses covering all sectors and tailor our packages to meet your specific requirements.
The FCSA Accredited Member status gives our clients reassurances that they are working with a fully compliant, high-quality professional service company. Our service has been shaped with our valuable, flexible workforce in mind, and we guarantee that each of our valued employees received complete security, full employee benefits, and unrivalled customer care throughout their employment with us.
Some of the advantages choosing us:
We are honest, reliable and dedicated – Our highly trained team have years of experience in every professional field. Low weekly and monthly margin. Dedicated Support – Each client has access to an experienced account managers who pro-actively provides on-going support and excellent customer service on a one-to-one basis. Full contract of employment with the associated benefits which this brings. Set up within 24 hours. Extended Office Hours – We are the only umbrella company in the market that offers our employees a helpline which is open from 8am-8pm, seven days a week. Trusted Partner – We already features on over 100 active PSLs or ASLs in the UK and encourages all agencies to implement a selected list of compliant FCSA Accredited Members. Advance payment facility – Payment on remit is available for preferred partners.

For over 35 years, Workwell Contractor Solutions has been a trusted provider of compliant, high-quality umbrella and CIS payments. As one of the largest umbrella companies in the UK, we are commitment to transparency, industry leadership, and trust, ensuring your business remains protected and fully compliant through us. Today, we have supported and paid over 10 million contractors, and are the largest provider within the construction sector.

Navigate People was created and is managed by a team of conscientious and dependable people who have seen a real gap in this market for genuinely excellent proactive support in delivering umbrella, PEO and CIS sub-contracting focussed on providing first class service and real added value for both workers and recruitment businesses. As workers and agencies increasingly want to know where to find the best value added benefits packages, including, for example, Personal Accident cover and fuel discounts for workers, we are constantly looking to improve our offerings for the benefit of all who work with Navigate People.

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.

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.