The events will be staged at the Brighton Centre in 2020 and at Harrogate Convention in 2021.
The conference and exhibition attracts more than 900 delegates, from libraries, publishers, information and content suppliers and technology vendors around the world.
Joe Manby will be providing a range of event services to the exhibition, which accompanies the conference.
Ben Acreman, executive director of UKSG, said: “Our annual conference is one of the most well-regarded events in the scholarly communication community, and we are at a new venue in 2020 so we needed a highly experienced events company we could rely on and Joe Manby Limited has never let us down.
“We trust the company to do an excellent job and very much look forward to working with them.”
Andrew Manby, director of Joe Manby, stated: “It’s a real privilege when clients return year after year.
“We are delighted to be reappointed for these key events and to celebrate our ongoing relationship with the UKSG.”