The 2023 Quantum Technologies Investment Report is an annual report produced to outline the most significant funding trends in the quantum technologies market. As quantum technologies grow in importance and find use in more and more practical applications, the quantum startup stage is getting wider. The huge potential of these technologies makes them an increasingly attractive target to invest in, visible in continuous investments made to support companies like that over the years. The report shows insights into the investment landscape in the quantum technology field, investigating the main trends across different periods, geographies, and product focus. It allows actors interested in putting their funds into valuable companies to analyze the startup scene for an educated decision – What are other investors interested in? How much money is usually put into new companies? How does Europe compare to other global regions? The report presents data collected in 2023. By giving the investors an overview of the market, we want to support the engagement in the quantum sector. As Europe has the potential of being the world leader in these technologies, we need to make the investments informed and efficient. By giving the investors an overview of the market, we want to support the engagement in the quantum sector. The information presented could be also a guideline to young companies on their way towards private and public funding.