Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ
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The Claim

Marks and Spencer Group plc faces aggressive competition in the United Kingdom retail sector from Tesco plc, J Sainsbury plc, Aldi, Waitrose, and Lidl.

The Short Version

Reliable UK market evidence supports that M&S faces strong competitive pressure from Tesco, Sainsbury’s, Aldi, Lidl and Waitrose in grocery retail. The main limitation is that this evidence applies most clearly to M&S Food, not to all of M&S Group’s retail activities such as clothing and home. The claim is therefore broadly accurate but somewhat overbroad in scope.

Caveats

  • The strongest evidence is grocery-specific; M&S’s clothing and home divisions face a different competitor set.
  • “Aggressive competition” is best supported by sector-level CMA findings, not by market-share data alone.
  • Waitrose overlaps most clearly with M&S in premium food and convenience, so the rivalry is not identical to the price-led pressure from Aldi and Lidl.

The Receipts

  1. Competition, choice and rising prices in groceries

    GOV.UK (Competition and Markets Authority)

  2. UK Supermarket Chain Profiles United Kingdom - USDA/FAS

    USDA Foreign Agricultural Service

  3. UK Grocery Market Share

    Kantar

  4. UK Grocery Market Share 2024

    Kantar

  5. UK Grocery Market Share Report Q3 2025

    Kantar

  6. UK: most popular supermarket chains 2025 - Statista

    Statista

  7. UK Supermarkets Market Report 2025

    Mintel

  8. Best supermarkets 2026 - Which? - Which.co.uk

    Which?

  9. Top 10 Supermarket Retail Chains In The UK - ESM Magazine

    ESM Magazine

  10. Top 10 UK Food, Grocery & Supermarket Retailers

    Retail Economics

+ 11 more sources — see the full list on Lenz

Filed Under

AldiJ Sainsbury plcLidlMarks and Spencer Group plcTesco plc

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