The Postal Museum has formally recognised the Prospect union, signing a voluntary recognition agreement that covers around 100 workers at its site in Farringdon and Clerkenwell in London. The agreement follows a grassroots campaign by staff and gives the union a formal role in representing workers at the museum, which tells the story of Britain's postal service.

The recognition comes at a moment of wider movement in the museum sector's labour relations. Prospect also suspended a planned strike at Royal Museums Greenwich, where a picket had been due on 31 October, after the employer made an improved offer. Earlier in the year, staff at the Greenwich museums had taken strike action on 11 and 12 August, part of a dispute that reflected the pay pressures facing museum workers across the country.

Museum unions have grown more visible in recent years as institutions face funding squeezes and staff argue that low pay and insecure work are driving people out of the sector. Recognition agreements are a first step: they do not settle pay, but they give workers a collective voice in negotiations with management.

For the Postal Museum, the agreement marks the end of a staff-led campaign and the start of a formal relationship with Prospect. The museum opened in 2017 in Clerkenwell, alongside the Mail Rail, the underground railway that once carried post across London, and it tells the story of five centuries of Britain's postal service. The union and the museum will now negotiate over pay, conditions and working arrangements for the staff covered by the deal.