The British government has identified seven construction and engineering firms that could face bans from public contracts following their involvement in the 2017 Grenfell Tower tragedy that claimed 72 lives [1].

Deputy Prime Minister Angela Rayner announced on February 26, 2025, that the companies will be investigated under new powers granted by the Procurement Act for their roles in the London tower's refurbishment [2]. The announcement came as part of the government's formal response to recommendations from last September's inquiry report.

The named companies include:

Arconic (cladding manufacturer)Kingspan and Celotex (insulation manufacturers)Saint-Gobain (former Celotex owners)Exova (fire inspectors)Rydon (design and build contractor)Studio E (architects)Harley Facades (subcontractor)

The inquiry found evidence of 'systematic dishonesty' and 'deliberate and sustained manipulation of fire-safety testing' by some firms [1]. Specifically, Arconic was found to have 'deliberately concealed' safety dangers, while Kingspan 'knowingly created a false market in insulation' [3].

The government has accepted all 58 inquiry recommendations, though nine of 37 government-directed recommendations are accepted only 'in principle' pending further consultation [4]. A key recommendation for establishing a single industry regulator has been modified, with the government stating the regulator should not handle product testing and certification [1].

Implementation of reforms will follow a three-phase approach, with some changes not expected until 2028. The Metropolitan Police investigation continues, with decisions on potential criminal charges expected by late 2026 [5].