R&D Tax Consultants in Wales
Zest is a specialist R&D tax consultancy based in Cwmbran, South Wales. Around half of our clients are Welsh SMEs, and we’ve prepared successful claims for businesses right across the country — from working farms in the valleys to precision engineering workshops. If you want an R&D tax consultant in Wales who understands both the technical detail of a claim and the kind of business making it, that’s what we do.
Based in Cwmbran, working across Wales
Our office is at Pembroke House, Llantarnam Park Way, Cwmbran, NP44 3AU, and it has been since we started. Plenty of firms will tell you they cover Wales; a fair question to ask any of them is whether there’s an actual office here and whether the person who picks up the phone is the one who’ll handle your claim. For us the answer to both is yes.
Being here matters in two practical ways. Around half of our clients are Welsh, so we know the local business landscape first-hand rather than from a distance. And if HMRC opens a compliance check, or you’d simply rather talk something through face to face than over a call, we’re a short drive away.
Welsh claims we’ve actually delivered
The best proof of local experience is the work itself. Two examples from our own clients:
- A South Wales farm secured a £360,000 R&D tax credit claim for innovative dairy and farming techniques — a genuinely substantial result for an agricultural business, and proof that R&D relief isn’t just for labs and software firms. Read the full case study.
- A Welsh electrical engineering company saved over £23,000 through a successful R&D claim for technical development work. Read the full case study.
Both are real claims we prepared and secured for Welsh businesses — the kind of work we do week in, week out.
The Welsh industries we know best
Wales has a distinctive industrial base, and a lot of it does qualifying R&D without ever describing itself that way. We have particular depth in three sectors that run right through the Welsh economy:
Industrial and precision engineering. South and North Wales both have a strong base of engineering firms solving genuine technical problems — new processes, tighter tolerances, product redesigns that don’t have an off-the-shelf answer. If your engineers have spent real time on a problem that didn’t have an obvious solution, there’s a good chance it qualifies. See our guide for engineering firms.
Manufacturing. Manufacturing remains one of the largest sources of genuine R&D activity in the UK economy, and Wales is no exception — from advanced manufacturing clusters around Newport and North Wales (including the aerospace supply chain around Broughton) to smaller independent manufacturers developing new products and processes. See our guide for manufacturing companies.
Agriculture. Welsh farming is far more technically innovative than outsiders often assume — new breeding and feeding techniques, novel equipment, environmental and efficiency improvements that involve real trial and error. Our £360,000 South Wales farming claim above is one example; our guide to R&D tax relief in agriculture covers what typically qualifies.
If your business sits in one of these sectors — or does similar problem-solving work in a different one — it’s worth a conversation.
Why choose Zest as your R&D tax consultants in Wales
An experienced founder leading your claim, backed by a qualified team. Zest was founded by Adam Park, a specialist tax adviser with more than 15 years of business consulting experience and six years focused specifically on R&D tax relief. Adam is your main point of contact from day one and leads the strategy on every claim, backed by our wider team of CTA-qualified and Chartered accountants for technical and compliance depth.
A track record you can check. Zest has saved clients more than £4.5 million in corporation tax through successful R&D claims — including the Welsh claims above. Read more on our testimonials page.
No-win-no-fee. Our fee is a percentage of the benefit we secure, typically starting from £2,850 with an average fee of around £4,000. If your claim doesn’t succeed, you pay nothing.
HMRC compliance-check support included. If a claim we’ve prepared is selected for a compliance check, we manage it at no extra cost.
Less than half a day of your time. Most clients spend under half a day in total on their claim. See how our claim process works.
Areas we cover
While we’re based in Cwmbran, we work with SMEs across the whole of Wales — Cardiff, Swansea, Newport, Wrexham, the Valleys, and rural Wales — as well as businesses across the rest of the UK. Most of the claim process runs over calls and email wherever you’re based, with an in-person meeting available for Welsh clients who’d prefer one given our South Wales location.
Frequently Asked Questions
Who is the best R&D tax advisor in Wales?
The best fit depends on what you need, but Zest is one of the few R&D tax consultancies genuinely headquartered in Wales rather than covering it remotely from England — our office is in Cwmbran, around half our clients are Welsh, and we have real, published claims for Welsh businesses in farming and engineering. When comparing advisors, ask about their track record with Welsh claims specifically, who actually prepares your technical narrative, and whether HMRC compliance-check support is included.
How much does an R&D tax advisor cost in Wales?
Fee structures vary across the market — fixed fees, hourly rates, and percentage-of-benefit success fees are all common, with success fees often in the 20–25% range. Zest works on a no-win-no-fee basis, typically starting from £2,850 with an average fee of around £4,000, agreed in writing before any work starts. If your claim doesn’t succeed, there’s nothing to pay.
Do you only work with companies in South Wales, near your Cwmbran office?
No. We’re headquartered in Cwmbran and roughly half our clients are Welsh, but we work with SMEs across all of Wales — Cardiff, Swansea, Newport, Wrexham and beyond — as well as the rest of the UK. The claim process works well remotely; being based in Wales just means we understand the local business environment and can meet in person if that’s useful.
What are the new HMRC rules for R&D tax credits?
HMRC’s September 2026 statistics show R&D tax credit claims have fallen significantly in recent years, driven mainly by a sharp drop in SME claims following a sustained compliance crackdown and the move to a merged R&D scheme for accounting periods from April 2024. See our full breakdown of the latest R&D tax credit statistics for what’s changed and what it means for your claim.
Ready to talk about your R&D claim?
Book a free consultation with a specialist and find out where you stand — it costs nothing to ask.
