M&J Group Files
Bid-rigging: Open
UPDATED

Corrections

Our corrections policy and log. We never silently modify a serious factual mistake.

Last verified: 5 October 2026

Accuracy is the foundation of this publication's credibility. When a factual error is identified, we correct it transparently — never silently. Each correction records the article, the original wording, the corrected information, the reason, and the source.

Corrections Log

No corrections have been issued to date. When a correction is made, it will appear here with:

  • Article affected
  • Original publication date
  • Correction date
  • Original wording
  • Corrected information
  • Reason for correction
  • Source supporting the correction

To request a correction, use the Right of Reply form.

M&J Group Files

Independent Investigative Publication

An independent investigation into M&J Group, CMA enforcement, public procurement and the roofing bid-rigging inquiry. Not affiliated with M & J Group (Construction & Roofing) Ltd.

M&J Group Files is an independent investigative publication and is not affiliated with M & J Group (Construction & Roofing) Ltd. The publication reports regulatory decisions, public procurement records, Companies House filings, official documents and attributable reporting. The CMA's administrative penalties relating to investigatory compliance are distinct from the separate ongoing investigation into suspected bid-rigging. No final finding that M&J Group infringed competition law through bid-rigging should be inferred unless and until such a finding is made by a competent authority.

Last verified: 5 October 2026 · Company no. 01371473 · Registered: 31 May 1978

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