Founded by Howard Walwyn in 2016, Prism-Clarity provides high-quality professional editing and writing services to financial sector, professional and academic clients. Howard also provides customised training and mentoring to educational bodies, corporate clients and individuals, helping people to write clear business English.

Howard is an Advanced Professional Member of the Chartered Institute of Editing and Proofreading and a member of the Professional Copywriters Network.

Clients he has worked with since 2016 include the Bank of England, the Financial Conduct Authority, HSBC, City, University of London, the Institute of Operational Risk, Kepler Partners, Galilei Investment Office, Wills and Trusts Wealth Management, Edgbaston Investment Partners, Compliancy Services, and FireDrake Consulting. He has also worked with private individuals and university researchers prior to book publication or submission to agents. See here for testimonials from some of these clients.

From 2020 to date Howard has been on a full time assignment for HSBC Global Risk Analytics, as a technical author and editor of risk model documentation.



Earlier, Howard gained 30+ years of professional experience at blue-chip UK and international banks: the Bank of England, ANZ Investment Bank, Mitsubishi UFJ Group, Bank of America Merrill Lynch, VTB Capital and J.P. Morgan. During his corporate career he worked in various regulatory, risk and governance roles, drafting and editing complex technical documents for C-Suite, Board and regulatory audiences.

This front-line experience has given him unparalleled insight into the needs of regulators, boards, management and the public for transparent, sustainable documentation on a wide range of financial sector topics.

His main specialism is financial regulation, risk and governance, where demand for high-quality sustainable documentation is high. He has worked on internal model documents, Basel I, II, 2.5 and III, the Fundamental Review of the Trading Book, CAD1 and CAD2 (CRR) applications, ICAAP and ILAAP, risk appetite, (reverse) stress testing, recovery and resolution, risk reporting including limit frameworks, risk policy, new products, and business strategy documents.

Howard developed his writing skills at the Bank of England, writing customised correspondence with bondholders and professional agencies; supervisory documents on banks and other financial institutions; and internal briefings and newsletters on international financial market and regulatory developments.


Supported by his university degrees in English Language & Literature (BA Hons, Newcastle upon Tyne) and Economics (MSc, London), Howard aims for the highest possible standard of English in a strong, clear writing style.

He specialises in working with ‘English as a Second Language’ writers, and quantitative experts who need help conveying complex material in clear English.



Howard lives and works near Bury St Edmunds in Suffolk, UK. He is married with two daughters, two stepdaughters and three grandchildren. His personal interests include a wide range of sports, music and TV shows, playing the guitar and learning Italian (both at novice level), gardening and nature. He also volunteers for a nationwide listening charity.

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