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Octopus50

Editorial reviewer and fact-checker

Helen Marsh

Independent editorial reviewer with 20 years in consumer and personal-finance publishing. Signs off every offer claim and commercial disclosure before it goes live.

Portrait of Helen Marsh, Editorial reviewer and fact-checker at Octopus50
Based in
Leeds, United Kingdom
Octopus account
Octopus customer since May 2023

Biography

Helen Marsh reviews everything published on Octopus50 that makes a factual or commercial claim. Her job is to challenge wording that sounds better than the evidence supports — 'guaranteed', 'cheapest', 'within 30 days' — and to make sure each claim links to a primary source.

She has spent two decades editing consumer and personal-finance content, including energy, banking and switching guides, and has worked to advertising and consumer-protection standards throughout.

Helen also owns the correction process. If a reader tells us a fact is wrong, she decides whether the page is amended, dated and logged in the change log.

Experience

  • 2024–present — Editorial reviewer and fact-checker, Octopus50
  • 2010–2024 — Senior editor, consumer and personal-finance publishing
  • 2005–2010 — Sub-editor and researcher, national consumer titles

Areas of expertise

  • Consumer-protection and advertising disclosure standards
  • Fact-checking and source verification
  • Plain-English editing for high-stakes financial content

First-hand experience

  • Reviewed and signed off each page on this site against Octopus Energy's published referral guidance on 29 August 2026.
  • Octopus Energy customer since 2023 on a flexible tariff, so she checks account-facing wording against her own account view.
  • Maintains the published change log and correction record.

Other people behind Octopus50

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