After 58 years in the town, the 1st Thatcham Boys’ Brigade is to close next month.
A lack of members and shortage of leaders has been blamed, with company captain David Brazier saying that people are unable to make the commitment to the group anymore.
A thanksgiving service will be held at the Thatcham United Reformed Church on July 9 to bring to an end the group’s time in the town.
Mr Brazier said: “It’s really getting officers and leaders – we’re all getting old and there are no young people coming forward because they can’t give the commitment that’s needed for the training and everything to do it.
“If you’ve got somebody who’s got a family or a career, they just can’t devote the time to it these days.
“We’ve had a good run, we achieved a lot and had our successes – and obviously some failures – but in the main we have done very well.”
The Boys’ Brigade is one of the biggest Christian youth organisations in the UK.
It is similar to the Scouts in that young people take part in a number of different activities and help out in the community.
Next month’s service in Thatcham will see the laying up of the group’s colours, with members past and present invited along to celebrate the company.
Mr Brazier added: “I think my biggest memory is the way the Thatcham community has rallied round and helped us with everything.
“I have been elsewhere apart from Thatcham, but the spirit and co-operation from Thatcham Town Council and the church we belong to, they treated us as part of the community.
“I’m afraid all good things must come to an end, but we don’t want to just close it and that’s it, we want to have a celebration for what we’ve done.”
The service on July 9 is due to start at 10.30am.