There are currently over 50 nuclear fusion startups in the world, and they have raised a total of $6.7 Billion in VC funding. 2024 was the year by VC funding in the segment, with over $1.6B. While total funding amount peaked in 2021 with huge financings to CFS and Helion Energy, 2023 and 2024 were the two most active years ever by number of rounds showing a burgeoning early-stage startup scene. Most of these companies are in countries with a heritage in international fusion research. More than half of these are in the US (28), 13 in Europe (of which 5 in the UK), 3 in Japan, 2 in Canada, 1 in Israel and 2 in Australia & New Zealand. Fusion reactors come in a number of different flavours, from "traditional" magnetic confinement to impact fusion and inertial confinement. The question of which, if any, will be the first to attain grid-ready fusion power remains an open one.