IN Brief:
- ISG administrators have recovered approximately £38.5m against unsecured creditor claims of around £885m.
- Book debts, retentions, work-in-progress balances, intercompany balances, and asset realisations remain central to the recovery process.
- The administration continues to expose payment risk across construction supply chains.
Administrators handling the collapse of ISG Group have recovered only a small proportion of the money owed across the failed contractor’s administration, with unsecured creditors still unlikely to receive a distribution.
Total recoveries stand at approximately £38.5m, compared with unsecured creditor claims of around £885m. The figures show the scale of the financial shortfall left by ISG’s entry into administration in September 2024, which disrupted projects across education, commercial fit-out, public sector frameworks, data centres, and specialist engineering work.
During the latest reporting period, covering 20 September 2025 to 19 March 2026, administrators collected nearly £12.2m from book debts, retentions, and work-in-progress balances. Settlements and legal disputes linked to ISG Engineering Services and ISG Retail accounted for more than £8.7m of that amount.
Further recoveries have come from intercompany balances and asset realisations, including the surrender of ISG’s London head office, utility refunds, dividends from related administrations, and partial repayments connected with overseas entities. Interest income has also contributed, although the sums remain modest against the level of creditor exposure.
HMRC, which is owed around £91m, is not expected to be repaid in full. Employee claims linked to protective awards have been partly settled for 1,687 former staff, with further payments expected. Primary preferential creditors, including employees owed pay, are expected to receive full or partial settlements.
The position for suppliers and subcontractors is weaker. Recoveries depend on book debts, retention balances, uncertified work, project account positions, and the strength of documentation available at the point of insolvency. In many cases, the value of work completed is only one part of the recovery process.
ISG’s collapse remains one of the most consequential construction failures since Carillion. Its administration continues to shape risk assessments across public and private sector procurement, particularly where large contractors hold complex framework positions and deep supply chain commitments.
The case also keeps attention on retention reform, payment security, and contractor financial due diligence. Large construction groups can leave behind extensive intercompany balances, disputed final accounts, partially completed schemes, and unresolved employer claims, while smaller suppliers face the immediate cashflow damage.
The latest recoveries provide limited comfort to unsecured creditors. They also show how quickly exposure can build below a major contractor, especially where multiple projects, delayed payments, and retention balances are tied to a single collapsed group.
