The largest global startup funding rounds of July 2026 topped $2.8B at the high end — and even the smallest round on this list came in at $300M. AI dominates, but the capital is spreading: nuclear microreactors, stellarator fusion, radiopharmaceuticals, and autonomous defense drones all made the cut. Here’s the full breakdown, including investor syndicates, founding teams, and total funding history for every company on the list.