At a glance
Leyton is one of the largest innovation-incentive consultancies operating in the UK, and the UK team is part of an international group that works on R&D and similar incentive regimes across multiple countries. Uplift Tax is a UK introducer service. For a UK-only company, the decision is about whether you want a global consultancy or a UK-focused specialist introduction.
| Criterion | Leyton | Uplift Tax (introduction) |
|---|---|---|
| Founded | 1997 (Leyton group), UK office established subsequently | Blue Llama Ltd incorporated 2020 |
| Model | International consultancy with UK team | Introducer to HMRC-registered specialist network |
| Typical fee | Percentage of claim, engagement letter | No win, no fee (charged by the specialist) |
| Minimum claim size | No published minimum, but public positioning is mid-market and above | No minimum at assessment stage |
| Geographic focus | International group, with UK R&D handled by UK team | United Kingdom |
| Trustpilot rating | Publicly listed rating varies by region, publicly available rating, subject to change; as of April 2026 the UK entity is rated in the 4-star range | Not individually rated; specialist firms are rated on their own pages |
| Cost of initial assessment | Free initial consultation | Free assessment, then no win, no fee if you proceed |
Where Leyton excels
Leyton has three structural advantages that are worth naming clearly.
1. International footprint. For UK companies that also have R&D spend in France, Germany, Canada, Spain or the United States, Leyton can run coordinated incentive claims in multiple jurisdictions using one relationship. That is not a small advantage. For a UK-only SME it is not relevant, but for a mid-market business with cross-border R&D activity it is a real benefit.
2. Large enterprise and scale-up experience. Leyton publicly lists engagements with larger businesses and has visible experience handling the volume and complexity that comes with those claims. For an enterprise or late-stage scale-up with a board-level expectation of a named consultancy, Leyton is on the shortlist for the right reasons.
3. Broader incentive portfolio. Beyond R&D tax credits, Leyton publicly offers services around Patent Box, Capital Allowances, energy efficiency incentives and a number of international grant regimes. If your business is likely to engage with several of these over time, a single consultancy that can work across them has convenience value.
For the right client, Leyton is a genuinely credible choice.
Where Uplift Tax fits differently
Uplift Tax is a narrower, UK-only service, and that is deliberate.
1. Introducer model, not a consultancy. Uplift Tax runs the eligibility assessment and introduces you to an HMRC-registered specialist who takes the engagement forward. We do not prepare claims in-house. That separation means the free assessment has no incentive to push borderline cases; if the R&D case is weak, we say so.
2. Multi-relief assessment at the front door. The same conversation looks at R&D Tax Credits, Capital Allowances (including Structures and Buildings Allowances for property fit-outs) and Land Remediation Relief. Some companies that initially come for R&D leave with a Land Remediation claim that is the larger of the two. A large international consultancy has the service lines, but they are not always surfaced in the first conversation.
3. Specialist matched to sector. Instead of being routed internally to whichever consultant has capacity, you are introduced to a specialist firm that has visible experience in your sector. For software, manufacturing, engineering, biotech and construction claimants the match matters.
Who should consider Leyton
Leyton is a reasonable first call if any of the following apply:
- Your business has R&D operations in more than one country and you want coordinated incentive claims rather than separate local advisers.
- You are a UK enterprise or late-stage scale-up where the board prefers a named international consultancy brand.
- You expect to engage with multiple innovation incentive regimes (UK R&D, Patent Box, international R&D tax credits, Capital Allowances, energy efficiency) and want a single relationship across them.
- You have an existing international tax structure where consistency of approach across jurisdictions has value.
For UK-only SMEs, the international advantage does not apply, and the scale of the consultancy can work against proportionality.
Who should consider Uplift Tax
Uplift Tax is a more natural fit if:
- Your R&D activity is UK-only and you want a UK-focused specialist.
- You want a free, no-pressure assessment before any engagement letter is discussed.
- You want the Capital Allowances and Land Remediation conversation in the same meeting as R&D.
- You are an SME and want a proportionate fee on a no-win-no-fee basis with no up-front cost.
- Your current accountant has not previously prepared R&D claims and you want a sector-matched specialist introduction.
See our process overview and the specialist network page for more on how the introduction works.
What both have in common
The similarities matter as much as the differences.
- Both operate under HMRC rules, including the merged R&D scheme rules that took effect from 1 April 2024. See the merged scheme guide.
- Both models involve fees paid out of successful claims rather than up front.
- Both will require the Additional Information Form to be completed correctly.
- The UK-based specialists at Leyton and the specialists in the Uplift Tax network are HMRC-registered and hold CTA or ATT qualifications at firm level.
Fee transparency
Leyton does not publish a standard UK R&D fee rate. Engagements are typically structured as a percentage of successful claim, with the rate varying by claim complexity and, in a multi-jurisdiction engagement, by the countries involved. For enterprise and late-stage scale-up clients, fee negotiation is part of the engagement conversation.
Uplift Tax network specialists charge on a no-win-no-fee basis, with the fee stated in writing up front. The fee is a percentage of the successful claim and sits in the mid-range of the UK market. For a UK-only SME the fee structure is straightforward; there are no international add-ons because there is no international scope.
HMRC enquiry posture
Leyton's UK team operates under HMRC rules and handles enquiries for UK claims. The group's scale and structured processes mean enquiry handling is documented and repeatable. Uplift Tax network specialists include firms with strong enquiry track records in specific sectors; the specific firm introduced is chosen partly with enquiry risk in mind.
International scope, in plain terms
Leyton's international footprint is often cited as a differentiator, and it is. For a UK business with R&D staff or subcontracted R&D activity in France, Germany, Canada, Spain or the United States, the ability to run the UK R&D claim and the equivalent incentives in the other countries through a single firm is a convenience that a UK-only introducer service cannot match. Where that is the need, Leyton is the right conversation.
For the majority of UK SME claimants, whose R&D activity is wholly in the UK, the international advantage does not apply. In that case, a UK-focused specialist introduction offers a better match between scope and price.
A note on compliance and positioning
Uplift Tax is an introducer service. We are not a tax adviser, accountant or legal firm. We do not prepare R&D claims. We collect information, run an eligibility assessment, and introduce you to an HMRC-registered specialist who takes the engagement forward under their own regulated terms. Recovery values quoted at assessment stage are indicative only.
References to Leyton on this page are drawn from publicly available sources including the Leyton website, Companies House filings for Leyton UK, Trustpilot and trade press. We have not attempted to describe internal processes or fee structures we cannot verify.