Marie is the co-founder of aiden.ai, which she ran for 1,129 days before it was acquired by Twitter in 2019. She stayed on as Director of Product during the earn-out until late 2022. Marie is one of the most active angel investors in Europe with over 25 investments in the last three years alone in the UK, France, the US. 56% of her portfolio has at least one female founder (vs the European average of 12%).