The Scots tennis star has invested undisclosed amounts into three ventures – MacRebur, VPAR and Bijou Commerce.
Dumfriesshire start-up MacRebur makes roads out of waste plastic and surpassed its £590,000 target on Seedrs, overfunding to almost £1.3 million in just over a week with more than 1,000 investors pumping money into the Sir Richard Branson-backed business.
VPAR is a golf technology platform which has so far raised £1.15m from almost 300 investors, including Eden Rock Capital’s chief executive James Matthews and is currently overfunding on Seedrs.
Bijou Commerce, meanwhile, is a mobile commerce platform for major retailers and has only recently gone live on the platform.
Murray said: “I’m continuing to grow my portfolio through Seedrs and have tried to choose companies that inspire me from as many different sectors as possible.
“I was interested in MacRebur because I am really impressed by their ambition to make a massive economic and environmental difference to road construction worldwide.”
He added: “VPAR appealed to me because I enjoy golf and it’s something I could see myself using once I finish playing tennis, and Bijou Commerce is a ground-breaking tech company which will hopefully revolutionise retail.”
Seedrs has funded more than 470 deals to date.