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From PhD Research to Start-Up Success: Ranjeet Singh Launches Dr Juice on campus

This month, START UP are celebrating the entrepreneurial success of Ranjeet Singh, a final year PhD researcher who has turned his passion for health and nutrition into a fast-growing local start-up.

11 February 2026

Ranjeet is completing a PhD in Cancer Biomarkers and Immunotherapy while also founding Dr Juice, a cold-pressed juice business now making a positive impact across the city, including on campus! 

Dr Juice offers 100% natural, cold pressed juices with no added sugar, designed for modern, fast paced lifestyles and built around sustainability and accessibility. Having first featured in the START UP Pop-Up Festive Market is now working with Newcastle University’s Accommodation and Hospitality teams. 

As part of this collaboration, Dr Juice pop-ups are launching at King’s Gate every Thursday and Friday, bringing fresh juices directly to staff and students and showcasing how researcher led businesses can enrich campus life. 

Looking ahead, Ranjeet has national ambitions, including scalable self-serve juice units for universities, gyms and workplaces. He credits Newcastle University’s supportive research and enterprise environment for enabling him to balance academic excellence with entrepreneurship. 

Claire Adamson, Senior Manager for Entrepreneurship and Start-Up, said: “It is no small feat to balance the demands of a PhD with starting and growing a business, making Ranjeet's success even more impressive. As a team we are delighted to be supporting Ranjeet and look forward to seeing more Dr Juice pop-ups across campus, further enriching campus life,” 

Helen Davis, Head of Accommodation said “We are excited to look at the opportunity to work with such an excellent start-up, it is always great to support a local growing business, and particularly when it is one of our students. The fresh juices will complement other products provided on campus. Look out for pop-ups in catering locations soon!”  

Try it: Dr Juice pop-ups at King’s Gate, Wednesdays and Thursdays