John Allan, the chairman of Tesco, will be among senior business leaders speaking at a Labour Party business conference today.
Nearly 400 senior business leaders, executives and lobbyists are expected to attend the day-long conference at Canary Wharf in London s Docklands.
Labour politicians who are due to address them include Sir Keir Starmer, the party leader, Angela Rayner, his deputy, and Rachel Reeves, the shadow chancellor. Sadiq Khan, the Labour mayor of London, is also due to attend.
Justin King, former chief executive of J Sainsbury and a non-executive director of Marks Spencer, Amanda Blanc, the chief executive of Aviva, and Clare Barclay, the chief executive of Microsoft UK, are also speaking at the event.
The seniority of those speaking at the conference is another sign of the increasingly close relationship between big business and Labour, which has a 21 point lead over the Conservatives in the polls. The event has sold out, with a waiting list for those who wish to attend.
The programme states that the full-day event will bring together politicians and business leaders to discuss how we can work together to restore our economy. The Business Champion Awards will be held at Canary Wharf in the future, and will include sessions on how to improve skills among the workforce and how to create long-term economic certainty.
Reeves will use the event to publish findings from the party's review of Britain's start-up investment landscape and how to encourage capital from insurers and pension funds to back growth companies.
The availability of that patient capital in the US is much greater than in the UK - I want to get that in all parts of Britain, said Reeves.
The review, led by Lord O Neill, is expected to focus on how towns and cities outside London will be crucial to the future of Britain's start-up success.
HSBC, the FTSE 100 bank, SSE, the energy giant and Canary Wharf Group are listed as sponsors of the event. Heathrow Airport is also a sponsor and is hosting a drinks reception.