Geoffroy Guigou is a co-founder of Younited, with Charles Egly. The company was founded in 2009 in Paris as a consumer-credit platform. It gained credit-institution approval and opened to the public in December 2011 under the name Prêt d'Union.
The business raised about €9 million in 2010 and 2011, €10 million in November 2013 and €31 million in July 2015. In 2016 it was renamed Younited Credit and launched in Italy. Spain followed in 2017, Portugal in 2018 and Germany in 2020.
In July 2021 it raised $170 million. In December 2022 a €60 million round made it France's 28th unicorn. Total funding is about €323 million. Investors include Crédit Mutuel Arkéa, Eurazeo, Bpifrance and Goldman Sachs.
On 20 January 2025 Younited listed on Euronext Paris under the ticker YOUNI, at a valuation of about €622 million. In May 2025 it agreed to buy the neobank Helios.