WE DEFEND YOUR CLAIM;
fast, clear and with HMRC expertise on your side
Facing an HMRC enquiry? We protect your claim, defend your position, and keep you in control, from first contact to final resolution.
WHY CHOOSE US?
The right expertise when it matters most.
We specialise exclusively in R&D audit defence – not as an add-on, but as our core business. Our founder has years of direct experience handling enquiries, understanding HMRC’s approach, and securing successful outcomes.
Proven Track Record
We have resolved audits at every stage, from first letters to tribunal appeals.
HMRC Insight
We know how caseworkers think, what they need to see, and how to push back when they overreach.
Focused service
No distractions – our work begins and ends with defending your claim.
Fast Action
We engage with HMRC quickly to protect your position and limit unnecessary delays.
WHO WE HELP
We work with companies at every stage of the audit process:
Businesses under fresh or ongoing HMRC enquiry
Companies facing penalties or threatened rejections
Firms whose R&D claims were filed by accountants, in-house teams, or third-party agents
Claimants needing to appeal HMRC decisions

STEP ONE
INITIAL ENGAGEMENT
We review your HMRC enquiry, confirm what’s been sent and by whom, and assess whether your claim is valid. From there, we agree the commercial terms for either defending the claim or mitigating penalties.
STEP tWO
Appointment as Your R&D Agent
We formalise the engagement, gather all relevant documents, and submit a COMP1 form to HMRC naming us as your authorised R&D agent.
STEP tHREE
Review, Assess, Plan & Respond
We examine your claim against legislative criteria, identify evidence gaps, anticipate HMRC’s next moves, and prepare a full response — including additional research where required.
STEP FOUR
CLOSURE OR APPEAL
If your claim is approved, we ensure payment is processed without delay. If rejected, we lead the appeal process — from formal rebuttals to mediation or tribunal.
OUR FOUNDER
Experience that
works in your favour.
Whiteley & Stirling is led by Rob Eves, specialist in R&D claim defence with a deep understanding of both the legislative requirements and HMRC’s internal processes. Having worked with a wide range of companies and accountants, Rob bring a calm, methodical approach to even the most challenging audits.
ROB EVES
Founder
OUR Client Testimonials
Real outcomes, for real people
When you’re facing an HMRC R&D enquiry, results matter more than promises
These are just a few examples of the cases we’ve taken on, and won.
Claim approved in full — £250,000 retained
A technology company received an HMRC letter challenging their eligibility. After reviewing the original submission, we rebuilt the evidence file, added technical clarifications, and addressed every legislative point raised. HMRC approved the claim without amendment.
Penalty cut from 30% to 0%
A manufacturer faced a rejected claim and a 30% penalty. We proved they had taken reasonable care and acted on qualified professional advice. HMRC agreed to remove the penalty entirely, saving the client tens of thousands of pounds.
Enquiry closed in 6 weeks
An engineering firm was midway through an enquiry that had already dragged on for months. We took over, supplied all evidence HMRC was likely to request, and requested a video meeting to clarify technical details. The caseworker closed the file within six weeks.
Appeal overturned rejection
A client’s claim was rejected after two rounds of correspondence. We escalated to HMRC’s Solicitors & Legal Services team, demonstrating legislative misapplication. The claim was approved in full at appeal.
Contact us
LONDON Office
4th Floor, Silverstream House
45 Fitzroy Street, Fitzrovia
London
W1T 6EB