# Hermeus Reaches $1 Billion Valuation with $350 Million Raise to Build Today’s Fastest Aircraft for the American Warfighter

_The round, led by Khosla Ventures, accelerates the delivery of high-Mach unmanned aircraft for national security missions._

[Read More](https://www.hermeus.com/newsroom-content/series-c)

# Hermeus Flies Newest Supersonic Plane, Delivering Its Second Successful First Flight in Nine Months

Hermeus, a venture-backed defense aviation company, today announced it successfully flew its latest Quarterhorse aircraft, marking the company’s second first flight in less than a year.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-flies-newest-supersonic-plane-delivering-its-second-successful-first-flight-in-nine-monthsnbsp)

# Hermeus Appoints Zachary Shore as President and Steve Furger as CTO to Accelerate High-Mach and Hypersonic Aircraft Development

Hermeus, the high-speed aircraft company, today announced two key executive appointments as it scales to meet the demands of its most ambitious product roadmap to date.

[Read More](https://www.hermeus.com/newsroom-content/hermeusappointszachshoreandstevefurger)

# Hermeus Flies Quarterhorse Mk 1 at Edwards Air Force Base

Quarterhorse Mk 1 flight redefines U.S. aircraft development pace and unlocks next steps toward hypersonic aircraft.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-flies-quarterhorse-mk-1-at-edwards-air-force-base)

# Hermeus Brings “HEAT” Facility Online with F100 Engine Tests

Hermeus has brought online the first phase of a facility that will address the critical shortage of hypersonic test infrastructure in the U.S.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-brings-heat-facility-online-with-f100-engine-testsnbsp)

# Quarterhorse Mk 1 Completes Ground Testing at Edwards Air Force Base - Readies For Flight

This segment of the flight test campaign was completed in just 21 days and satisfies technical requirements for flight approval.

[Read More](https://www.hermeus.com/newsroom-content/quarterhorse-mk-1-completes-ground-testing-at-edwards-air-force-base-readies-for-flight)

# Hermeus Celebrates Groundbreaking for Hypersonic Engine and Flight Test Facility in Jacksonville, Fla.

The new facility advances U.S. capability to more effectively test and field various hypersonic technologies.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-celebrates-groundbreaking-for-hypersonic-engine-and-flight-test-facility-in-jacksonville-florida)

# Hermeus Unveils First Aircraft, Quarterhorse Mk 1

Designed, built, and integrated in just seven months, Hermeus’ Quarterhorse Mk 1 is the company’s second fully-integrated vehicle in the past year.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-unveils-first-aircraft-quarterhorse-mk-1)

# Hermeus Completes Testing of Quarterhorse Mk 0 Vehicle

This non-flying prototype acted as a ‘dynamic iron bird’ for the company by validating all major aircraft subsystems in a real-world environment.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-completes-testing-of-quarterhorse-mk-0-vehicle)

# Hermeus Signs Hypersonic Aircraft Contract with Defense Innovation Unit for Hypersonic Aircraft Risk Reduction

Hermeus has been awarded a contract by the Defense Innovation Unit (DIU) to mature hypersonic aircraft subsystem and mission system technology.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-signs-hypersonic-aircraft-contract-with-defense-innovation-unit-for-hypersonic-aircraft-risk-reduction)

# Hermeus Receives First Pratt & Whitney F100 Engine

Hermeus has accepted its first F100 engine from Pratt & Whitney. Set to be integrated into the enhanced Chimera II turbine-based combined cycle (TBCC) propulsion system, this powerful engine component marks a critical milestone in Hermeus' development of [Darkhorse](https://www.hermeus.com/darkhorse).

[Read More](https://www.hermeus.com/newsroom-content/hermeus-receives-first-pratt-amp-whitney-f100-engine)

# Hermeus Completes Hypersonic Milestone With Engine Tests

Hermeus has demonstrated turbojet to ramjet transition within its engine, Chimera. This is one of the most important technological feats to making operational hypersonic flight a reality.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-completes-hypersonic-milestone-with-engine-tests)

# Raytheon Technologies Venture Capital Group Invests in Hermeus

Raytheon Technologies today announced a strategic investment in Hermeus Corporation through its newly established corporate venture capital group, RTX Ventures.

[Read More](https://www.hermeus.com/newsroom-content/raytheon-technologies-venture-capital-group-invests-in-hermeus)

# Hermeus Raises $100 Million Series B Led by Sam Altman

Hermeus is excited to announce a $100 million Series B funding round led by [Sam Altman](https://en.wikipedia.org/wiki/Sam_Altman). New investors [Founder's Fund](https://foundersfund.com/) and [In-Q-Tel](https://www.iqt.org/) also participated in the round alongside existing investors [Khosla Ventures](https://www.khoslaventures.com/), [Canaan Partners](https://www.canaan.com/), [Bling Capital](https://www.blingcap.com/), and [Revolution’s Rise of the Rest](https://revolution.com/entity/rotr/).

[Read More](https://www.hermeus.com/newsroom-content/hermeus-raises-100-million-series-b-led-by-sam-altman)

# Hermeus Fully-Funded to Flight with $60 Million U.S. Air Force Partnership

Hermeus, the aerospace company developing Mach 5 aircraft, announced today the signing of a $60 million U.S. Air Force partnership for flight testing its first aircraft, Quarterhorse.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-fully-funded-to-flight-with-60-million-us-air-force-partnership)

# Hermeus Closes $16 Million Series A Led by Canaan Partners

Hermeus, the aerospace company developing Mach 5 aircraft, announced today that it has closed a $16 million Series A funding round led by [Canaan Partners](https://www.canaan.com/).

[Read More](https://www.hermeus.com/newsroom-content/hermeus-closes-16nbspmillion-series-a-led-by-canaan-partners)

# Hermeus Raises Seed Funding from Khosla Ventures and Announces Advisory Board

Hermeus Corporation, a startup increasing the speed of air transportation by developing hypersonic aircraft, today announced a Seed round investment.

[Read More](https://www.hermeus.com/newsroom-content/hermeus-raises-seed-funding-from-khosla-ventures-and-announces-advisory-board)