Stellar Jet

Stellar Jet is the brand associated with a United States-based aerospace developer working on hydrogen-powered vertical-takeoff-and-landing aircraft. The business began in 2021 under the name Sirius Aviation AG, founded by Alexey Popov. Its early activity centered on research and development, supported by a team reported to include more than 100 engineers. Rather than operating a conventional commercial airline, Stellar Jet has presented itself as an aircraft developer seeking to combine vertical takeoff and landing with hydrogen-based propulsion and zero-emission flight concepts. The company attracted attention through two proposed aircraft families: the CEO Jet and the Adventure Jet. The CEO Jet is intended for business and leisure travel, while the Adventure Jet is designed for access to locations that may be difficult for conventional aircraft to reach, including mountainous, jungle, and other remote environments. The aircraft concepts were co-designed with BMW Group's Designworks and Sauber Motorsport, linking the project to established automotive and motorsport design and engineering capabilities. In 2024, Stellar Jet pursued commercial and infrastructure relationships in several markets. In February, it announced a partnership with Indian seaplane operator MEHAIR covering more than 50 aircraft, with the arrangement reported at a value of $400 million. In March, the company presented the CEO Jet and Adventure Jet at the MOVE Expo in London. It also announced an investment partnership with PARQ Development intended to support air travel and tourism in Bali, Indonesia; the reported investment was $50 million. In August, Stellar Jet partnered with Marathon Group Australia in Sydney on the implementation of zero-emission airports. In 2025, the company rebranded as Stellar Aircraft and moved its headquarters to Delaware in the United States. The Stellar Jet name therefore represents an earlier or product-facing identity within the company's development, while Stellar Aircraft is the later corporate brand described in the available reference material. Publicly available information in the supplied sources does not establish whether the proposed aircraft have entered commercial service, received certification, or begun serial production. It also does not provide verified current ownership, revenue, listing information, or a confirmed production timetable.

Stellar Jet originated in 2021 as Sirius Aviation AG, a company founded by Alexey Popov to develop advanced aircraft concepts. The early phase was primarily dedicated to research and development. Available reference material describes the organization as having more than 100 engineers, indicating an emphasis on building technical capacity before commercial deployment. The project focused on hydrogen-powered vertical-takeoff-and-landing aircraft, a category intended to combine the operational flexibility of helicopters with the speed and range objectives associated with fixed-wing aviation. The company later became associated with the Stellar Jet name and developed two principal aircraft concepts. The CEO Jet was aimed at business and leisure use, while the Adventure Jet was conceived for travel to more demanding or remote environments, including mountainous and jungle regions. The concepts were co-designed by BMW Group's Designworks and Sauber Motorsport. Their involvement gave the aircraft program an external design and engineering profile connected to automotive and motorsport development, although the supplied sources do not establish the final certification, production, or operational status of either aircraft. Commercial and infrastructure partnerships became more prominent in 2024. In February, Stellar Jet entered into an agreement with MEHAIR, an India-based seaplane operator, for more than 50 jets. The reported value was $400 million. In March, the company publicly presented the CEO Jet and Adventure Jet at the MOVE Expo in London. During the same month, it announced a partnership with PARQ Development involving a reported $50 million investment to support air travel and tourism in Bali. These announcements connected the aircraft program not only with private aviation but also with tourism and regional mobility. In August 2024, Stellar Jet announced a partnership with Marathon Group Australia in Sydney concerning zero-emission airports. This broadened the company's stated ambitions from aircraft development to the infrastructure needed to support lower-emission aviation. The available material does not specify the airports involved, the technical scope of the program, or whether construction or deployment followed. In 2025, the company rebranded as Stellar Aircraft and moved its headquarters to Delaware in the United States. This change marked a later corporate identity after the Sirius Aviation and Stellar Jet phases. The supplied sources do not provide verified information about current executives beyond founder Alexey Popov, ownership, capitalization, aircraft certification, delivery dates, or commercial operations. Accordingly, Stellar Jet is best documented as an aerospace development brand and aircraft program rather than as an established airline or certified aircraft manufacturer in commercial service.

• 2025

  Rebrand to Stellar Aircraft

  [1]Stellar Jeten.wikipedia.org

  The company adopted the Stellar Aircraft name and relocated its headquarters to Delaware in the United States.

• 2024

  Partnership with MEHAIR

  [1]Stellar Jeten.wikipedia.org

  Stellar Jet announced an agreement with Indian seaplane operator MEHAIR for more than 50 jets, reported at $400 million.

• 2024

  Aircraft concepts presented at MOVE Expo

  [1]Stellar Jeten.wikipedia.org

  The CEO Jet and Adventure Jet were presented as zero-emission aircraft concepts at the MOVE Expo in London.

• 2024

  Bali investment partnership announced

  [1]Stellar Jeten.wikipedia.org

  Stellar Jet partnered with PARQ Development on a reported $50 million investment related to air travel and tourism in Bali.

• 2024

  Zero-emission airport partnership in Australia

  [1]Stellar Jeten.wikipedia.org

  The company partnered with Marathon Group Australia in Sydney on implementing zero-emission airports.

• 2021

  Sirius Aviation AG founded

  [1]Stellar Jeten.wikipedia.org

  Alexey Popov founded Sirius Aviation AG, the organization from which Stellar Jet developed.

Stellar Jet positioned itself around hydrogen propulsion, zero-emission aviation, vertical takeoff and landing, and premium access to business, leisure, tourism, and remote destinations.

• Hydrogen-powered VTOL aircraft · 2024

  CEO Jet

  The CEO Jet is a proposed vertical-takeoff-and-landing aircraft intended for business and leisure travel. Stellar Jet presented it as a zero-emission aircraft concept, with hydrogen-based propulsion forming part of the company's broader technology direction. The aircraft was co-designed with BMW Group's Designworks and Sauber Motorsport. The available reference material does not confirm certification, production, passenger operations, or a final delivery schedule.

• Hydrogen-powered VTOL aircraft · 2024

  Adventure Jet

  The Adventure Jet is a proposed vertical-takeoff-and-landing aircraft focused on adventure travel and access to difficult-to-reach destinations. Its intended operating profile includes mountainous, jungle, and other areas where conventional aircraft may face access limitations. It was presented alongside the CEO Jet as a zero-emission concept and was co-designed with BMW Group's Designworks and Sauber Motorsport. The supplied sources do not establish whether the aircraft has flown, been certified, or entered production.

• 2025

  Corporate rebrand and headquarters relocationStrategy

  Background

  After operating under the Sirius Aviation and Stellar Jet identities, the company changed its corporate presentation.

  Action taken

  The business rebranded as Stellar Aircraft and moved its headquarters to Delaware, United States.

  Aftermath

  Stellar Aircraft became the later corporate identity described in the available reference, while Stellar Jet remained associated with the earlier brand and aircraft program.

  Source

• 2024

  Presentation of CEO Jet and Adventure JetProduct launch

  Background

  Stellar Jet was developing hydrogen-powered VTOL aircraft and sought public and commercial attention for its zero-emission aviation concepts.

  Action taken

  The company presented the CEO Jet and Adventure Jet at the MOVE Expo in London.

  Aftermath

  The presentation established the two aircraft as the brand's principal publicly identified offerings. The available source does not document certification or commercial entry.

  Source

• 2024

  MEHAIR aircraft partnershipStrategy

  Background

  Stellar Jet sought prospective operators and commercial applications for its aircraft program.

  Action taken

  The company partnered with India-based seaplane operator MEHAIR for more than 50 jets.

  Aftermath

  The agreement was reported at $400 million and represented a prospective aviation-operator relationship; the source does not confirm completed deliveries.

  Reported value of proposed aircraft arrangement. $400 million (2024)

  Source

• 2024

  Bali aviation and tourism investment partnershipStrategy

  Background

  The company aimed to connect its aircraft development program with tourism and regional air mobility.

  Action taken

  Stellar Jet partnered with PARQ Development on a reported $50 million investment intended to support air travel and tourism in Bali.

  Aftermath

  The partnership expanded the brand's stated commercial focus into tourism infrastructure and regional mobility, although implementation details are not provided.

  Reported investment. $50 million (2024)

  Source

• 2024

  Zero-emission airport implementation partnershipStrategy

  Background

  Stellar Jet presented zero-emission aviation as requiring supporting infrastructure as well as new aircraft.

  Action taken

  The company partnered with Marathon Group Australia in Sydney to work on implementing zero-emission airports.

  Aftermath

  The initiative broadened the company's positioning from aircraft development toward airport infrastructure, with no further implementation details available in the supplied source.

  Source

1. 1Stellar Jeten.wikipedia.org