Request a call back to start a discussion with our team.
RDEC for large companies
Large company R&D tax relief services
We take a proactive, agile approach to R&D tax relief services for large companies, tailored to your organisational structure and information systems. Our expert team flexes and scales to meet even the most complex client requirements.
We are experienced in submitting robust research and development expenditure credit (RDEC) claims, but our services stretch beyond end-to-end claim preparation to bespoke support for enquiries, development of in-house teams, due diligence and advice on international R&D programmes.

To find out more about how ForrestBrown works with large and complex companies please get in touch.
- Telephone
- 0203 519 5080
- hello@forrestbrown.co.uk
RDEC claim preparation for large companies
We deliver research and development expenditure credit (RDEC) claims for large companies – managing the end-to-end claim preparation or focusing on a specific aspect of your RDEC claim. We also offer consultancy services for your business if you are looking to focus on a particular element of your wider R&D tax strategy.
From internal teams and group businesses, to your CCM and external advisers, securing buy-in and demonstrating the benefits of your RDEC claim, we are experienced in engaging with and managing multiple stakeholders. In large businesses, R&D activity often intersects different departments, subsidiaries, sectors and jurisdictions. We take a holistic view, reviewing risks to ensure your R&D tax strategy fits with wider business objectives.
We combine our tax technical firepower with in-depth sector knowledge to uncover the full extent of your qualifying R&D. As R&D tax specialists with a team of 120+ across the UK, we’re able to deploy senior resources at pace and in parallel. Our chartered tax advisers and sector specialists will work directly with your finance and technical teams to gather all the information required for your RDEC claim.
Claiming R&D tax reliefs shouldn’t be a box ticking exercise. We work with you to develop a contemporaneous approach, capturing information to support your ongoing claim preparation. This approach delivers greater insight into your R&D projects in real time, providing visibility on your investment in innovation.

Changes to R&D claims 2023 & beyond
We take a closer look at specific considerations for larger businesses, groups and multinational enterprises around recent changes to R&D claims.
Success stories
A specialist construction group
We helped this specialist high-end bespoke construction group claim more than £3m+ in RDEC benefit.
A market-leading FTSE 250 PLC specialising in cyber security
“By taking the time to get to know us, ForrestBrown [has] been incredibly time-efficient. In the past we found our claims rather burdensome, but with ForrestBrown at the helm we’ve been able to crack on with running the business whilst they prepare our submission.”
A global branding agency group
“One of the best things about ForrestBrown are their sector specialists. Their in-house engineers were able to really connect with our tech team, and they pointed our areas of R&D that had been completely overlooked by our previous adviser.”
An international Product Lifecycle Management consultancy, part of a 46000 employee group
“ForrestBrown have been technical, knowledgeable and professional from start to finish. I would recommend ForrestBrown to anyone claiming R&D tax relief as their knowledge of the tax legislation is faultless.”
Private equity backed managed cloud services business
“When we spoke to ForrestBrown, the difference was clear. They’re a specialist team who provide an end-to-end service. They’re flexible and proactive, which makes claiming easy. I’d certainly recommend their service to other businesses.”
One of the largest global marketing and advertising agency networks
ForrestBrown helped this business with their RDEC claims resulting in more than £3.7m benefit to the group.
Donna Owens, Finance Controller, Linear Plastics
Having ForrestBrown in our corner made a big difference. Our enquiry was resolved quickly without distracting me from my day-to-day role. As a result, we retained our full benefit which was a relief as we’d already invested in new machinery.
The experts you need to navigate your R&D tax advice
When claiming RDEC for your large business you want the best possible team on your side to efficiently handle complex information, understand the bigger picture and set you up for success.
We assemble a senior team of experts matched to your specific needs. They will then work tirelessly to protect your business and secure the best outcome for you. Your project team will be composed of:
- qualified chartered tax advisers and chartered accountants
- sector specialists with relevant industry experience
- former HMRC R&D unit inspectors

Jenny Tragner CA ATT (Fellow)
Director & Head of Policy
Jenny Tragner CA ATT (Fellow)
Director & Head of Policy
- R&D tax incentive policy expert.
- 20 years of tax experience, including advising some of the UK’s best-known innovators.
- Provides advice on the most complex cases involving R&D tax reliefs, including the resolution of HMRC disputes.
Expertise & specialisms
- UK corporate taxation and accountancy
- R&D tax policy
- Quality assurance and professional standards
Jenny is one of the UK’s leading R&D tax policy experts having specialised in the field since 2007. A highly skilled chartered accountant with almost 20 years of experience, she leads client-facing teams and helps us deliver high quality advice to clients and is a respected and influential voice within the industry.
Throughout her career, which includes over a decade spent with KPMG, Jenny has worked on R&D tax relief claims for some of the UK’s best-known innovators, ranging from big pharma companies to F1 teams and household FMCG brands.
Jenny has actively contributed to numerous groups involved in the operation of R&D tax reliefs, R&D tax policy and the future of the incentive. In her role as ForrestBrown’s Head of Policy, she has worked with the Chartered Institute of Taxation (CIOT), Nesta’s Creative Industries Policy & Evidence Centre and the Confederation of British Industry to inform responses to the government’s wide-ranging consultation on R&D tax reliefs and shape thinking on the future of the incentive.
She also helped to secure a significant victory for one of ForrestBrown’s clients in the first-tier tribunal, challenging HMRC’s interpretation of subsidised R&D expenditure.
Jenny is a regular author of technical articles, as well as contributing commentary on R&D tax in Tolley’s 2021 Finance Act Handbook and joining the judging panel for Tolley’s Taxation Awards 2022.
Passionate about raising professional standards for R&D tax advice, Jenny initiated a cross-industry working group that drafted the Professional Conduct in Relation to Tax (PCRT) guidance for R&D tax advice, led by the CIOT and the Association of Taxation Technicians (ATT). This has been endorsed by all major UK accountancy and tax bodies and sets the standard for professionally qualified R&D tax advisers, which in turn ensures that UK businesses can access R&D tax relief with confidence.
Jenny brings insight from these high-profile roles to benefit ForrestBrown’s clients, helping businesses maximise the benefit of their investment in innovation while minimising risks to cashflow and reputation.

James Dudbridge LLB
Director
James Dudbridge LLB
Director
- Leads our tax advisory practice.
- Solicitor specialising in corporate and personal tax.
- Over a decade of experience in tax law.
Expertise & specialisms
- Complex corporate structures, including international groups
- HMRC disputes including compliance checks and appeals
- UK tax law
James leads our tax advisory practice as well as client-facing teams in the R&D tax credit practice. He provides award-winning R&D tax relief expertise to businesses and accountants on a consultative basis, as well as helping to realise the benefits of innovation through the Patent Box. This can include risk assessing in-house claim methodologies, help with setting up or improving processes for identifying and recording R&D projects within a business, or support to resolve an enquiry through ForrestBrown’s specialist HMRC enquiry support service.
His extensive experience with HMRC allows him to provide an incisive legal perspective when deciding upon initial strategy and in pursuing the best possible outcome for clients. This has led to some ground-breaking results, including a landmark victory in a first-tier tribunal challenging HMRC’s interpretation of subsidised expenditure.
A solicitor who specialises in tax advice for corporates and individuals, with a focus on cross-border and international issues, James trained and qualified at a top London law firm before relocating to Geneva to help set up the firm’s Swiss office. On returning to the UK James worked in the tax team of a leading Bristol and London-based law firm, before joining ForrestBrown in 2019.

Jayne Stokes ACA
Associate Director
Jayne Stokes ACA
Associate Director
- ACA qualified with years of experience.
- Former director at a Big Four firm, responsible for global mobility services in the Middle East.
- Advises innovative businesses on R&D tax reliefs.
Expertise & specialisms
- Tax
- Accounting
- Chemistry
- Pharma
Jayne is an experienced chartered accountant with Big Four experience, who has worked in both the UK and Middle East. She leads day-to-day management of ForrestBrown’s specialist tax advisory practice.
After completing a Master of Chemistry degree from the University of Sheffield, Jayne began her career with Deloitte in 2006. She was based in the entrepreneurial business tax practice and studied for her ACA qualification.
In 2010, she moved to Dubai to help establish Deloitte’s international tax practice for the Middle East region. She managed a diverse portfolio of clients including large multinationals, owner-managed companies and startups.
Over the next 10 years, Jayne progressed from a senior manager to a director role. She successfully oversaw the growth of Deloitte’s Iraq tax services, leading a team that delivered across all aspects of corporate taxes, employee taxes and transactional and structuring work. Jayne also led the global mobility services for the Middle East region.
Jayne joined ForrestBrown in 2020 as part of our advisory practice, leading day-to-day management of client engagements. She brings a wealth of experience in leading complex tax advisory projects, which helps her provide invaluable advice to our clients. She also plays a key role in assessing and managing tax risks and leading client relationships with HMRC.
Jayne is passionate about working with our clients to understand the R&D tax relief available to them and unlock potential value. She specialises in the energy, chemistry and pharmaceutical and medical sectors.
For a growing global business at the forefront of innovation in orthopaedics, Jayne undertook a holistic review of claims prepared in-house, identifying significant additional qualifying expenditure. This involved working with ForrestBrown’s sector specialists to understand software development undertaken by the client and managing a range of stakeholders across client teams in the UK and overseas.
In her role with ForrestBrown, Jayne is focused on developing our advisory services to help more businesses across the UK benefit from R&D tax relief. This includes working with clients and accountants to create robust claims and providing strategic advice or specialist support should HMRC open an enquiry.

Katy Long CTA CA
Associate Director
Katy Long CTA CA
Associate Director
- Qualified chartered tax adviser and chartered accountant
- More than 10 years’ tax experience
- Studied business and accounting at the University of Exeter
Expertise & specialisms
- Software
- Engineering
- Renewable energy
Katy’s early career began at Big Four accounting firm EY. She spent six years in a range of auditing and tax roles, developing a broad understanding of accountancy.
A qualified chartered tax adviser and chartered accountant, Katy built on her accountancy background and developed a strong specialism in R&D tax relief since joining ForrestBrown in 2019. As a senior tax manager, she looks after her own impressive portfolio of clients, ensuring their R&D tax claims are optimised and robust.
Clients working with Katy benefit from her commercial mindset and ability to optimise their R&D tax relief claims. She works with companies across the software and construction sectors, which are seeing fast organic growth with the help of R&D incentives.
Katy’s approach involves building a broad understanding of each client’s needs. Seeing what the benefit can be for them and then ensuring they get the most out of their R&D claim.

Mark Andrew
Senior Tax Specialist and ex-HMRC Inspector
Mark Andrew
Senior Tax Specialist and ex-HMRC Inspector
- More than four decades of tax experience.
- Provides strategic advice through our advisory and enquiry support services.
- Specialist in R&D tax since 2006.
Expertise & specialisms
- HMRC inspections
- UK taxation
- Training & development
Mark is a former HMRC tax inspector with more than four decades of experience. That includes time working as an inspector in HMRC’s R&D units, providing Mark with indispensable insight on the implementation of the incentive.
Joining HMRC in 1979, Mark went on to specialise in conducting enquiries into companies. He was one of the original tax inspectors assigned to the specialist R&D units in 2006, working in the Croydon unit until 2018.
He joined ForrestBrown in 2019 and his expertise is primarily shared through our enquiry support service, which provides support to clients as well as companies who have prepared claims themselves or through another adviser or partner.
The wealth of experience gained through the combination of public and private sector roles has proved invaluable so far. He helps reassure ForrestBrown’s clients, providing them with a measured viewpoint and advice on their risk profile.
Part of Mark’s drive is the challenge of debating technical issues involving the law. That includes working on Quinn’s landmark tribunal case, which tackled HMRC’s interpretation of the amount of relief available to SMEs for customer-led R&D projects.
In addition to his work in enquiry support, Mark contributes to our in-house development programme, the Learning Lab, which aims to create the next generation of tax professionals.
Find out about a typical day for Mark Andrew in our meet the expert series.

Phil Smith CTA
Technical Lead
Phil Smith CTA
Technical Lead
- Qualified chartered tax adviser (CTA)
- Advised hundreds of businesses on R&D tax relief
- Provides a range of specialist R&D tax advice
Expertise & specialisms
- UK taxation
- Breaking down complex concepts
- Manufacturing
- Engineering
With a growing interest in innovation, Phil joined ForrestBrown in 2014 to work with our manufacturing and engineering clients. He trained at Cooper Parry in Nottingham and qualified as a chartered tax adviser in 2009. Phil then moved to Burton Sweet and later Hazlewoods, where he advised owner-managed businesses on personal and corporate taxation. He brings over a decade of experience to our team.

Tom Heslin MSc
Associate Director
Tom Heslin MSc
Associate Director
- Leads our sector specialist team
- Sat on the HMRC subcommittee that drafted software guidance for R&D tax relief
- Master’s in Medical Image Computing
Expertise & specialisms
- Software
- Datasets
- Machine learning
- Communication of highly technical R&D claims
- HMRC policy
Tom is a software expert at the cutting-edge of technical innovation and HMRC policy. One of our sector specialists at ForrestBrown, his knowledge and experience is invaluable in optimising software claims.
He sat on the HMRC subcommittee that issues software guidance for R&D tax relief. As such, the team utilises his extensive expertise to ensure we deliver robust and accurate advice to our clients.
With a master’s degree in Medical Image Computing from University College London, Tom has a deep understanding of image processing techniques. He can apply mathematical and statistical formulae to large datasets and machine learning.
Tom also has experience and knowledge of common software design patterns. Specifically, MATLAB, C#, C++, Python, R!, JavaScript, HTML, SQL, SSRS.
On top of extensive experience in the R&D tax relief industry, Tom has held a range of technical positions spanning various industries. In e-learning he engineered tools to aid international broadcast of lectures. In medical technology he helped develop an online CBT tool to help manage unhealthy lifestyle habits.
Tom also uses his industry insight to improve the future of R&D tax reliefs for the software industry. Not only does he work with our clients to represent their views in response to R&D consultations, he also communicates key information to our clients on technical webinars and in key content such as his work in IT Pro Portal, Tech Monitor, SME Web and Business Leader publications.
A natural communicator, Tom is able to express highly technical R&D claims in a clear and compelling way. He is passionate about helping science and technology firms maximise their funding to drive innovation and breakthroughs.

Peter Beavis PhD MSci CSci CChem MRSC MIMMM
Senior Sector Specialist
Peter Beavis PhD MSci CSci CChem MRSC MIMMM
Senior Sector Specialist
- Highly experienced materials scientist
- Background in food science, pharma and defence.
- Doctorate of organic chemistry
Expertise & specialisms
- Novel polymers and materials
- Food science
- Defence
- Pharma
Peter’s experience ranges from getting a PhD and MSci in Chemistry and improving confectionery shelf-life to the invention of a patented elastomeric material for improved radiation stability.
His career started with a role as a chocolate scientist at Mars. That was followed by a move to the defence sector, where he finished a nine-year stint as a Senior Materials Scientist at the Atomic Weapons Establishment.
During that period, he authored numerous scientific papers and spoke at international conferences on the synthesis and characterisation of novel polymers and materials. With ForrestBrown, Peter has also been published in The Manufacturer, The Medicine Maker, Interplas Insights, and the Confectionery Production publications.
That scientific and technical capability allows him to quickly understand, challenge and assess clients’ work against the R&D tax credit guidelines. And, it’s seeing the projects companies are able to fund due to the value of their claims – and the excitement they have – that’s driving him.
At ForrestBrown, Peter provides expert peer-to-peer communication for our clients on their technical projects, helping to translate their work into reports for HMRC. Examples of his work include reviewing a claim prepared by a Big Four accountancy firm – and significantly increasing the value of R&D tax relief to their business.
Pete works with our network of associations in the food and drink sector, using his background at Mars as a chocolate scientist to help businesses identify their hidden R&D in this industry. Supporting the activities of our partnerships team, Pete speaks at events, networks with businesses and hosts webinars with industry partners to raise awareness of the value of working with ForrestBrown’s expert multi-disciplinary team to access this valuable incentive.
With an infectious passion for all things science and materials, you can talk to Peter about pharma, food and drink, materials (adhesives, polymers and manufacturing) and engineering sectors.

Gareth Randle Pr Tech Eng MSAICE
Senior Sector Specialist
Gareth Randle Pr Tech Eng MSAICE
Senior Sector Specialist
- 20 years’ international engineering experience.
- Member of the South African Institute of Civil Engineers.
- Led the structural team designing Kuwait Children’s Hospital.
Expertise & specialisms
- Structural engineering
- Civil engineering
- Project management
- Green building principles
Gareth is a structural engineering expert with more than 20 years of experience. He joined ForrestBrown’s team in 2020 with the ambition of helping like-minded technical professionals use the R&D incentive to achieve their goals.
Gareth’s work has taken him all over the world, including working on a number of cutting-edge, acclaimed structural projects.
After graduating with a Civil Engineering degree from the Cape Peninsula University of Technology, Gareth made his first move to the UK. He spent three years involved in the refurbishment of listed buildings and mixed-use developments and schools, then moved on to the warmer climates of Brisbane.
Gareth worked on large, mixed-use developments in Australia, before returning to South Africa where he spent more than a decade working for one of the country’s most reputable civil engineering consultancies.
As an associate, he led a variety of projects including public buildings, civil infrastructure and commercial and industrial developments. Most notably, he worked on several high-end residential structures, including the award-winning OVD 919 and Kloof 145.
With a keen interest in sustainable design, Gareth picked up further accreditation in green building principles and ran a number of renewable energy projects.
Gareth then moved over to the healthcare sector and led the structural team designing Kuwait Children’s Hospital. The design incorporates sustainability with cutting-edge technology and is set to be the largest of its kind in the world.
His final step in South Africa was to set up his own independent consultancy, which he ran successfully before moving to the UK and joining ForrestBrown.
At ForrestBrown, Gareth partners with our network of associations in the construction and engineering sectors. Attending members’ meetings, speaking on webinars and networking at events, Gareth uses his structural engineering experience to educate businesses on the value R&D tax credits can have on firms in this sector. With ForrestBrown, Gareth has written content for the UKWA, ACE, and Construction and Civil Engineering publications.

Chris Alderson CTA
Associate Director
Chris Alderson CTA
Associate Director
- Qualified chartered tax adviser (CTA).
- More than a decade of tax experience including at the Big Four
- University of Bristol graduate with a master’s in economics
Expertise & specialisms
- UK taxation
- Insurance & financial services
- Accountant partnerships
Chris is a chartered tax adviser (CTA) with more than a decade of experience, including at the Big Four. Chris is a leader in the tax team at ForrestBrown and his expertise has helped hundreds of companies to grow and thrive.
He qualified as a chartered tax adviser whilst at KPMG where he specialised in life and Lloyd’s insurance, advising global insurance companies such as Zurich on their tax position in the UK. Chris landed the role after earning a master’s in economics and finance at the University of Bristol.
After six years with KPMG, Chris made the switch to ForrestBrown. He now focuses on helping innovative companies to benefit from the transformative power of R&D tax reliefs, as well as working with large and complex organisations to support in-house finance teams. With his understanding of the insurance world, Chris takes a particular interest in fintech and financial services more broadly.
In a recent case, Chris worked with a client to refile an incorrect claim put together by an accountancy firm which had mishandled the client’s grant position. Chris supported the client through the HMRC enquiry process, resulting in a robust claim with a greater benefit for the client.
Being an ultra-marathon runner helps to give Chris the mindset to break big goals down into manageable chunks and deliver them for our clients. He is a natural communicator and is passionate about forging lasting partnerships.

Kelly Oakley CTA
Associate Director
Kelly Oakley CTA
Associate Director
- Qualified chartered tax adviser (CTA).
- More than a decade of tax experience.
- Builds relationships with our accountant partners.
Expertise & specialisms
- UK taxation
- Accountant partnerships
- Client service
Kelly is an associate director at ForrestBrown. She is a chartered tax adviser with more than a decade of experience, and a key part of our business growth team.
After earning a BSc in Mathematical Sciences from the University of Birmingham, Kelly trained with a top accountancy firm and went on to specialise in R&D tax advice. She joined ForrestBrown as a tax manager in 2014 and progressed quickly into a senior tax manager role. Less than four years later, she became an associate director.
Since joining the company, Kelly’s skill and hard work have helped to deliver millions of pounds in R&D funding for ForrestBrown’s clients. Her focus is now on developing relationships with our accountant partners to help support clients’ goals.
Kelly works closely with a wide range of the UK’s leading accountants, including several top 50 firms, tailoring each relationship to maximise the value we can add to our partners and their clients. With specialist experience supporting firms with their own R&D tax service line, Kelly brings years of knowledge working on complex R&D claims. In addition to supporting claims raised by our partners, Kelly helps ensure they are able to spot all the R&D activity within their client base.
Kelly is passionate about working with ForrestBrown’s innovative clients to help them to grow, as well as supporting large and complex organisations in making R&D tax claims. She also has a strong interest in design, including everything from chocolate moulds to animation and computer-generated imagery.
How we work with your advisers
At ForrestBrown, we understand that R&D tax reliefs are just one part in your wider tax strategy. That’s why we work seamlessly alongside your existing business partners, from M&A advisers and investors to legal advisers and accountants. We ensure that you get the best combined technical firepower, acting as an extension of your team. By taking a hands-on approach to your RDEC claim preparation, we free up in-house teams to maintain oversight and ensure compliance with your wider financial strategy.
When working on your RDEC study, claim preparation or consultancy project, ForrestBrown’s approach to working with your accountant is led by you. We prioritise collaboration with your advisers and always focus on the value we can deliver to you, working in harmony with your accountant or HMRC CCM to make sure they have everything they need.
To find out more about how we work with your existing partners, read our KnowledgeBank article How will ForrestBrown work with my accountant to deliver R&D tax relief services?

Partner with the UK’s leading specialist in R&D tax advice
Get in touch to discuss your unique business needs and find out how we can support you with your RDEC claim preparation.
- Telephone
- 0203 519 5080
- hello@forrestbrown.co.uk