Louise Marsters | Corporate editor

Professional Member
Location Marsters Associates Limited, West Berkshire, UK
Email .(JavaScript must be enabled to view this email address)
Mobile Available on request
LinkedIn Louise Marsters


Copyediting – a thorough review to make your messaging clear, correct and easier for your readers to understand or act on

Proofreading – a final quality check to give you the confidence to go to print or publish online

Proof-editing – a mixture of those two, and most often what clients mean when they ask me to 'tidy up' or 'sort out' a document

Rewriting – a way to shape and smooth words so they say what you really mean or want them to say, or to make sure they're in plain English

Repurposing – an edit to make the most of your existing content, by adapting it for different channels, publications or audiences

Developing house-style guidelines – a tool to eliminate inconsistencies in style, grammar, punctuation and spelling that confuse and distract your readers, because everyone in your organisation writes differently


BP plc – one of the world's leading integrated oil and gas companies

Springer Nature – a world-leading global research, educational and professional publisher

Falcon Windsor – a London-based team of corporate reporting and communications specialists

OPX Studio – a London-based strategic brand and communications studio

SB&Co – a London-based strategy, sustainability and communications consultancy

GW+Co – a London-based strategic creative branding consultancy

Independent Age – the Royal United Kingdom Beneficent Association, a 150-year-old charity helping to build a better future for older people in the UK

International Chamber of Shipping – the principal international trade association for merchant shipowners and operators

Ethical Trading Initiative – a leading alliance of companies, trade unions and NGOs that promotes respect for workers' rights globally

Book Aid International – the UK’s leading international book donation and library development charity

Oxford Institute for Energy Studies – a world-leading independent energy institute specialising in advanced research into the economics and politics of international energy


  • Corporate editor, since 2012
  • Financial Reporting Manager, BP plc, 2008–11
  • Financial Reporting Adviser, BP plc, 2006–08
  • Communications Manager, BP plc, 2005–06
  • Marketing Communications Executive, Burness Paull LLP, 2004–05
  • Publishing Adviser, Herbert Smith Freehills LLP, 2001–04
  • Business Development Coordinator, Herbert Smith Freehills LLP, 2000–01
  • Business Development Coordinator, Hunt & Hunt Lawyers, 1998–2000


  • Word for practical editing, CIEP, 2021
  • Practical markup of PDFs, SfEP (Society for Editors and Proofreaders), 2019
  • Efficient editing: Strategies and tactics, SfEP, 2018
  • Copyediting 2: Headway, SfEP, 2017
  • Proofreading 3: Mentoring, SfEP, 2015
  • Brush up your grammar, SfEP, 2014
  • Write 101x: English grammar and style, University of Queensland, 2014
  • Advanced grammar, Plain English Campaign, 2006
  • Corporate editing and proofreading, RMIT University, 2001


  • Master of Communications and Media Studies, 2003
  • Bachelor of Business (Communications), 1998
  • WSET Level 3 Award in Wines, 2018


  • Professional Member, Chartered Institute of Editing and Proofreading
  • Member, Clarity International


How can an editor help with brand voice?, a blog post by Louise Marsters, explains that editors do more than put your style guidelines into action – they can make your words sing to the tune of your voice guidelines too, and keep you on brand.

Your house style, a CIEP guide, outlines the value of a house style and reveals how to go about constructing such guidance if one doesn’t already exist.


corporate reporting annual report annual report and accounts form 20-F annual reports interactive annual report annual reporting annual review summary review financial reporting notice of meeting sustainability report sustainability reporting sustainability review responsible business report non-financial reporting corporate communications corporates external affairs public relations business reporting framework pro bono report corporate social responsibility CSR brand guildelines brand identity brand book brand principles visual identity guidelines imagery guidelines wine wines energy oil gas law firm legal reputation research group reputation report tone of voice ToV brochure marketing materials website content writing style guide house style house-style guidelines editorial style guidelines 


We were super happy with the job! I'm sure we will work together again. 

Larraine Datta, Senior Director Client Services, OPX Studio

I am absolutely delighted with [the house style guide]. Thank you so much for your work and for all your guidance in the earlier stages.

Emily Yates, Publications Manager, International Chamber of Shipping

Thank you very much for this – I am very pleased with the work you’ve done. It highlights a very real need...for professional editorial services.

Stephen Cox, Senior Creative Manager, Independent Age

Again, I can’t tell you what an amazing job you have done with this [annual report copy] – I’m looking forward to being able to share the designed copy so we can see it all coming together!

Alice Birkbeck, Production Assistant, Independent Age

Thank you also for the amazing [house style] overview document –  it’s a treasure trove!

Penny Baxter, Director, SB&Co

Thank you for being so accommodating with our fluid timelines, and for turning the proofreading around so quickly on such a tight final deadline.

Awa Jaram, Account Director, GW+Co

Just wanted to say thank you, Louise, for being so responsive and helpful...bringing you on board for this project was definitely a good decision.

Thea Sherer, Head of Group Communications, Springer Nature

The deliverables were great. We could definitely appreciate the amount of work, especially regarding the footnotes. The feedback document was really useful too.

Membership Services, Ethical Trading Initiative

Louise is the type of editor that you want on your team – whether it be working on a large, complex publication or multiple sets of content for various channels (e.g. online content, above-the-line marketing material and press releases).

Louise is a pragmatic editor. She understands that an organisation needs to set a tone of communications that aligns to its brand; however, she is courageous in making sure that while a tone is set it does not compromise grammar and plain English.

I have observed Louise put her skills to use under extremely tight timelines, with high-risk content (i.e. it must be correct for legal and market reasons) as well as cutting through corporate-speak to make clear, approachable internal communications. All done with a smile, enthusiasm and a dedication to getting the job done.

Nicholas Robinson, Head of Corporate Reporting, BP plc

I have worked with Louise for several years on the development of major publications aimed at academic and policymaker audiences. She is highly professional, thorough, has an eye for detail, meets deadlines, simplifies corporate-speak, and is an absolute pleasure to work with.

Steve Shaw, Head of Communications – Upstream, BP plc

On my retirement in August 2008, Louise succeeded me as BP’s financial reporting manager. She was a worthy successor in this challenging role for a major international company and has all the right attributes to be a professional member of the Society for Editors and Proofreaders. 

Valerie Shepard, Financial Reporting Manager, BP plc

In my opinion, Louise is a great asset to any team she cares to work for. She constantly bubbles with enthusiasm, loves her job and has a great professional eye for – and attention to – detail in her work.

Bill Burridge, Internal Communications Manager, BP plc

I thank...Louise Marsters for bringing her editorial expertise to the thesis. Louise, a professional editor who used to edit my environmental law newsletters at Freehills, proofread my thesis, correcting grammatical errors and applying a rigour of consistency over the presentation of my work.

Dr Brad Jessup, Lecturer, University of Melbourne and winner of the Best PhD award at the Australian National University's 2020 Australian Legal Research Awards