Defense tech startup Epirus has raised an oversubscribed $250 million Series D funding round. The company, based in Torrance, California, specializes in anti-drone systems and has developed a flagship product called Leonidas. This product beams high-powered electromagnetic pulses at drones, providing protection against drone swarms. Epirus has won several U.S. military contracts, including a $66 million deal with the Army in 2023. The company plans to use the new funding to expand into international and commercial markets, grow its team, and improve its supply chain resiliency. Epirus will also open a new simulation center in Oklahoma to train soldiers. The Series D funding round was co-led by 8VC and Washington Harbour Partners LP, with participation from other investors including Gaingels and General Dynamics Land Systems. This brings the total amount raised by Epirus to over $550 million, solidifying its status as a unicorn in the defense tech industry. Epirus' valuation is now over $1 billion, although the exact figure was not disclosed.