Members and leaders of the group — based at South Shawlands church — were invited along with bailie Josephine Docherty and lord dean of guild, Mr Raymond Williamson.
Around 80 guests attended, including all surviving past captains of the 45th company, and all celebrated the contribution the group has made to the area over the years.
The reception was the latest in a series of events to celebrate the milestone, including a centenary games day and a church parade.
Current captain Roy Inglis commented: “There have been 13 captains in the history of the 45th Glasgow. It’s a bit like Dr Who — we regenerate and the story continues!
“Sometimes in life, we experience nights which we know will never be repeated. The civic reception was one of those great nights, which brought together BB leaders, former BB boys and leaders who dined together in the magnificent surroundings of Glasgow’s city chambers to celebrate the centenary.”
Alan Hunter, training and development officer for the Boys Brigade, added: “To sit alongside former captains and leaders of the 45th Glasgow company was a privilege.”