Workers at Airbus sites in Broughton, Wales, and Filton, Bristol, will strike over pay, according to the Unite union.
Approximately 140 maintenance and cleaning staff employed by CBRE, a facilities management contractor, are protesting against insufficient wage increases for 2023/2024.
Many workers, currently earning the national living wage, have only been offered a minimal raise.
The strikes, scheduled for September 6, 7, 9 and 10, are expected to disrupt Airbus operations.
Unite warns that the industrial action could escalate if the dispute remains unresolved.
CBRE Managed Service Limited’s latest financial accounts state the company made after tax profits of £35.9 million in the year ending December 2022.
Sharon Graham, Unite‘s general secretary, said: “CBRE makes huge profits but thinks it is ok to pay its workers poverty wages. This is pure corporate greed. CBRE can more than afford to put forward a fair pay offer.
“CBRE’s workforce at Airbus’ Broughton and Filton sites have their union’s absolute support in taking strike action.”
Jono Davies, Unite regional officer, said: “Airbus will not be happy that CBRE’s greed is causing disruptions to its Broughton and Filton operations. Industrial action can be avoided but that will require an acceptable offer being put forward by CBRE.”