Orders of vegan dishes on Deliveroo skyrocketed by 78 percent when comparing the number in January 2019 and January 2020.
The food delivery service saw its highest ever demand for plant-based food during the month.
Veganuary - which had a record-breaking 40,000 sign-ups this year - has been credited for the massive success of vegan food sales in 2020.
"As January comes to a close, Deliveroo has seen its highest ever demand for vegan and plant-based food which figures given Veganuary has smashed its numbers for 2020," a spokesperson said.
"Many of our partners have introduced new vegan dishes to their roster which are now some of the most popular items on their menu, proving veganism is much more than just a fad."
'Exceeded our expectations'
Veganuary’s Head of Communications Toni Vernelli said: "With the link between animal farming and the climate crisis making headlines nearly every day we expected Veganuary 2020 to be the biggest yet, but it exceeded all of our expectations.
"We applaud everyone who took part and encourage them to continue eating vegan food as often as possible.
"And we’re grateful to all of the businesses embracing Veganuary and making it easier for more people to eat more plant-based food more often. Together we are making an enormous difference for animals and the planet."