How Belfast became one of the UK's hottest tech hubs Belfast's technology sector is growing rapidly but start-ups are struggling to compete with larger businesses Belfast city centre Credit: Nigel Andrews/iStockphoto The Belfast docks were once home to a curious mixture of tourists visiting the site of the Titanic’s construction, dockworkers and start-up founders hoping to create the next billion-dollar business. Today, the tourist attractions are closed and you may only see a handful of entrepreneurs commuting along the River Lagan. A short stroll from the now-empty slipways where the Titanic and its sister ship the Olympic were built is a new technology hub that’s still home to some of the world’s largest technology businesses as well as a number of fledgling companies hoping to make it big.