The 12 Companies in the CMA Roofing and Construction Investigation
Parties identified by the CMA — inclusion does not mean any company infringed competition law.
Last verified: 5 October 2026
IMPORTANT DISTINCTION
The penalties described on this website concern failures to comply with CMA investigative requirements during an inspection.
The separate CMA investigation into suspected bid-rigging remains ongoing.
The CMA has expressly stated that no assumption should currently be made that competition law has been infringed.
Being named as a party under investigation does not mean that any of these companies has infringed competition law.
The CMA has expressly stated that no assumption should be made that competition law has been infringed.
This page lists the companies currently identified by the CMA. It does not create negative profiles of the other 11 companies unless independently sourced.
CMA / GOV.UK — Suspected anti-competitive conduct in relation to the supply of roofing and other construction services [S001]