How Much Did Epirus Raise? Funding & Key Investors

Date August 22, 2025
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Epirus

COMPANY INFO

Epirus Inc. was founded in 2018 by Nathan Mintz, Dr. Bo Marr, Max Mednik, Joe Lonsdale, Grant Verstandig, and John Tenet. The company has approximately 218 employees and is headquartered in Redondo Beach, California. Epirus operates in the Aerospace and Defense industry and specializes in developing software-defined high-power microwave technology to counter unmanned aircraft systems for national security. Their solid-state, software-defined directed energy systems are designed to neutralize drone threats efficiently and cost-effectively, enabling defense organizations to disable drones or drone swarms without collateral damage. The official website is https://www.epirusinc.com.

How Much Did Epirus, Inc. Raise? Funding & Rounds and Investors

Epirus, Inc. is an innovative company operating in the Aerospace and Defense industry, founded in 2018 by Nathan Mintz, Dr. Bo Marr, Max Mednik, Joe Lonsdale, Grant Verstandig, and John Tenet. Headquartered in Redondo Beach, California, with about 218 employees, Epirus specializes in developing software-defined, high-power microwave technology to counter unmanned aircraft systems, enhancing national security. Their directed energy systems are designed to neutralize drone threats efficiently and with minimal collateral damage. The company boasts a growing presence with primary and satellite offices in Torrance and Hawthorne (California), and McLean (Virginia).

Epirus, Inc. funding has been notable for its rapid growth, strong investor confidence, and clear strategic milestones. Since its inception, Epirus has raised a total of $550 million over five funding rounds, which include early-stage, late-stage, and a major institutional grant. The company’s funding strategy emphasizes scaling its proprietary technology, expanding manufacturing, and increasing its international reach. With a unicorn valuation of $1.35 billion as of early 2022, Epirus continues to attract major investors, highlighting its pivotal role in next-generation defense solutions.

Funding Rounds

Series D - $250 million - March 4, 2025

This Series D round was led by 8VC and Washington Harbour Partners. The purpose of the round was to hyperscale Leonidas production capability, accelerate manufacturing, grow talent, improve the supply chain, expand into international and commercial markets, and increase innovation and manufacturing footprint in the U.S.

Series C - $200 million - January 28, 2022

The Series C round, led by T. Rowe Price and 8VC, was aimed at growth and scaling operations, enabling Epirus to further develop its technology and expand market coverage. The round valued the company at $1.35 billion, officially recognizing Epirus as a unicorn.

Grant (Prize Money) - $243,000 - December 1, 2021

Epirus received a grant from the National Science Foundation for research and development purposes, supporting continued innovation in its core technologies.

Series B - $70 million - September 25, 2020

This Series B funding round, led by Bedrock and Greenspring Associates, was targeted at supporting product development and market expansion, helping position Epirus for commercial success.

Series A - $17.4 million - October 25, 2019

The Series A round was led by 8VC and provided the early-stage capital necessary for initial product development and entry into the defense market.

Key Investors

8VC

8VC is a leading venture capital firm that has participated in multiple Epirus funding rounds, including serving as a lead investor in the Series A, Series C, and Series D rounds. Their involvement has been central to Epirus’s strategic direction and scaling efforts.

Washington Harbour Partners

Washington Harbour Partners led the Series D round, helping inject significant capital to boost manufacturing, talent acquisition, and expansion into new markets.

T. Rowe Price

T. Rowe Price is a global investment management firm and was a lead investor in the Series C round, their investment critical in pushing Epirus into unicorn status and enabling large-scale growth.

Bedrock

Bedrock led the Series B round, supplying substantial resources for product development and expanding Epirus's commercial presence in the Aerospace and Defense sector.

National Science Foundation

National Science Foundation (NSF) provided a grant to Epirus, supporting cutting-edge research and development efforts within the company.

Additional Key Investors

Epirus, Inc. funding has also attracted notable contributions from Gaingels, General Dynamics Land Systems, Broom Ventures, I Squared Capital, StepStone Group, Parkwood, Piedmont Capital Partners, Red Cell Partners, Moore Strategic Ventures, EPIQ, AJI Capital, Alternative Investment Management, Centaurus Capital, Center15 Capital, Chapter One, Oppenheimer's Private Market Opportunities Vista VI Fund, Manhattan Venture Partners, and NightDragon, all playing pivotal roles in Epirus's growth and technology advancement.

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Epirus, Inc. Funding and Investment Overview | Aerospace & Defense