Doxa Holdings International Pte. Ltd. (Doxa), a Singapore-based fintech startup, said Monday it has successfully concluded its S$3 million ($2.21 million) pre-series A funding round from financial institutions including venture capitals, public listed and logistics corporations. Doxa plans to use the incoming funds to accelerate its traction in the built environment by investing in sales and marketing, strengthening their product offerings and expanding into the region. The team has already doubled in size since the past year.