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Mari McCrossan

Innovation Taxes: Science & Technology Lead

Mari McCrossan

Edinburgh Office,
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Mari has been working as an R&D and innovation specialist for 9 years, assisting with claims across all UK industry sectors and for companies of all sizes, from start-ups to global groups with a multi-billion pound annual turnover. Mari has a deep and holistic understanding of innovation and how a company’s science and technology can benefit from R&D relief.

Mari has prepared many claims for upstream operators and oilfield services companies. Her oil and gas technical experience allows her to discuss the company’s activities in depth with its technical staff and prepare supporting documentation in language that can be understood by HMRC.

Sector Experience

  • Technology & Life Sciences
  • Oil & Gas and Oilfield Services
  • Engineering & Manufacturing
  • Infrastructure & Renewable Energy
  • Food & Drink


  • D.Phil.
  • PGDE
  • BSc (Hons)

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