82 indexable Aerospace, Maritime and Defense Tech companies headquartered in Japan, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $1.6B across 45 funded companies.
| # | Company | Funding | Valuation | Stage | Latest round | Employees | Founded | Momentum |
|---|---|---|---|---|---|---|---|---|
| 1 |
Interstellar
Developer of rockets for small payloads |
$77.4M | — | Series F | Series F Jan 2026 | 96 | 2013 | ↑ Active |
| 2 |
Orbital Lasers
Developer of satellite-mounted lasers for space debris mitigation and LiDAR |
$24.9M | — | Series A | Series A Mar 2026 | — | 2024 | ↑ Active |
| 3 |
SkyDrive
Developer of electric vertical takeoff and landing aircraft for urban mobility |
$117.5M | — | Series C | Series C Jul 2025 | — | 2018 | ↑ Active |
| 4 |
Oceanic Constellations
Developer of an unmanned surface vessel network designed for comprehensive maritime surveillance and data collection |
$12.6M | — | Series B | Series B Feb 2026 | — | 2023 | ↑ Active |
| 5 |
Warpspace
Provider of optical inter satellite data relay services |
$9M | — | Series C | Series C Jan 2026 | 22 | 2016 | ↑ Active |
| 6 |
Pale Blue
Provider of water-based propulsion systems for spacecraft |
$23M | — | Series C | Series C Aug 2025 | 44 | 2020 | ↑ Active |
| 7 |
NSI
Provider of satellite-based imaging services for space solutions |
$2.7M | — | Series A | Series A Apr 2026 | 8 | 2021 | ↑ Active |
| 8 |
Space Shift
Developer of data analysis technology for SAR satellites |
$9.4M | — | Series B | Series B Dec 2025 | 9 | 2009 | ↑ Active |
| 9 |
SORA Technology
Developer of multi-utility drones and solutions |
$7.2M | — | Seed | Seed Dec 2025 | — | 2020 | ↑ Active |
| 10 |
AstroX
Developer of satellite launch rockets using the Rockoon method |
$2.8M | — | Series A | Series A Feb 2026 | — | 2022 | ↑ Active |
| 11 |
Metroweather
Provider of drone-based atmospheric measurement equipment |
$11.1M | — | Series A | Series A Jul 2025 | 22 | 2015 | ↑ Active |
| 12 |
GITAI
Developer of robotic solutions for space station support and exploration |
$60.4M | — | Series B | Series B Nov 2024 | 38 | 2016 | ↑ Active |
| 13 |
Space Quarters
Provider of space architecture and infrastructure solutions |
$6M | — | Seed | Seed Oct 2025 | — | 2022 | ↑ Active |
| 14 |
FullDepth
Remotely operated vehicle for deep sea exploration |
$3.1M | — | Series D | Series D Dec 2025 | 35 | 2014 | ↑ Active |
| 15 |
MJOLNIR SPACEWORKS
Developer of hybrid rocket engines for space solutions |
$4.6M | — | Series A | Series A Oct 2025 | — | 2020 | ↑ Active |
| 16 |
Synspective
Provider of cloud and AI-based satellite imaging data |
$243.7M | — | Public | Series C Jun 2024 | 136 | 2018 | — |
| 17 |
Aeronext
Provider of next-generation drones based on intellectual property |
$4M | — | Series A | Series A Sep 2025 | — | 2017 | ↑ Active |
| 18 |
Skyagte Technologies
Developer of ground stations as a service |
$6.9M | — | Series A | Series A Jun 2025 | 7 | 2020 | ↑ Active |
| 19 |
ElevationSpace
Manufacturer of AI-based satellites |
$2.7M | — | Series A | Series A Sep 2025 | 7 | 2021 | ↑ Active |
| 20 |
Astroscale
Developer of satellite solutions for space debris removal |
$383.7M | — | Public | Conventional Debt Oct 2023 | 450 | 2013 | — |
| 21 |
Letara
Developer of hybrid propulsion systems using plastic as rocket fuel |
$2.7M | — | Seed | Seed Jun 2025 | 7 | 2020 | ↑ Active |
| 22 |
NABLA Mobility
Provider of AI-enabled electronic flight bag solutions for the aviation industry |
$2.8M | — | Series A | Series A May 2025 | 9 | 2021 | ↑ Active |
| 23 |
Axelspace
Developer of microsatellites and earth observation platform providing related services |
$107.2M | — | Public | Series D Dec 2023 | 130 | 2008 | — |
| 24 |
Eight Knot
Developer of AI and robotics-focused autonomous navigation system development |
$4.7M | — | Seed | Seed Oct 2024 | 8 | 2021 | ↑ Active |
| 25 |
Terra Drone Corp
Provider of services for aerial imaging survey |
$98.2M | — | Public | Series B Jan 2023 | 28 | 2017 | — |
| 26 |
ZABoooN
Provider of software solutions for shipping management |
$3.8M | — | Series A | Series A Aug 2024 | — | 2018 | ↑ Active |
| 27 |
AirKamuy
VTOL aircraft developers |
$702.2K | — | Seed | Seed Apr 2025 | — | 2022 | ↑ Active |
| 28 |
ispace
Developer of micro-robots that locate the resources necessary to extend human life into outer space |
$195.5M | — | Public | Series C Oct 2021 | 121 | 2010 | — |
| 29 |
Autonomous Control Systems Laboratory
Conducts R&D on, and markets, drones and robotics-based technologies. |
$25.1M | — | Public | Post IPO Dec 2023 | 53 | 2013 | — |
| 30 |
Spiral
Developer of autonomous flight control systems |
$2M | — | Seed | Seed Sep 2024 | 10 | 2016 | ↑ Active |
| 31 |
Liberaware
Developer of drones for indoor industrial inspection |
$9.3M | — | Public | Series B Aug 2023 | 15 | 2017 | — |
| 32 |
Infostellar
Provider of ground based communication services with satellites |
$21.3M | — | Series B | Series B Jan 2022 | 26 | 2016 | — |
| 33 |
SPACE WALKER
Developer of reusable winged rocket for suborbital space transport systems |
$5M | — | Series A | Series A Aug 2023 | 11 | 2017 | — |
| 34 |
Iwatani Giken
Developer of technology enabling near-space travel via balloon for public access |
$2.8M | — | Seed | Seed Dec 2023 | 57 | 2016 | — |
| 35 |
SkymatiX
Provides drone-based services for enterprises |
$11.3M | — | Series B | Series B Mar 2022 | 20 | 2016 | — |
| 36 |
CLUE
Provider of drone data management solutions |
$19.3M | — | Series B | Series B Dec 2020 | 50 | 2014 | — |
| 37 |
Aerial Lab Industries
Developer of mobility solutions including robotics, AI, and drone technologies |
$21.1M | — | Deadpooled | Series B Nov 2019 | 11 | 2016 | — |
| 38 |
NileWorks
Develops a drone for agricultural pesticide spraying purposes |
$21.5M | — | Series A | Series A Mar 2019 | 32 | 2015 | — |
| 39 |
Tetra Aviation
Developer of e-VTOL aircraft |
$5M | — | Series A | Series A Jun 2022 | 14 | 2018 | — |
| 40 |
iQPS
Developer of SAR satellites for real-time Earth observation applications |
$20.6M | — | Public | Series A Nov 2017 | — | 2005 | — |
| 41 |
Sensyn Robotics
Provider of drone hub, related control software, and inspection solutions |
$10.9M | — | Series A | Series A Jun 2020 | 121 | 2015 | — |
| 42 |
Aster
Manufacturer of electric motors for multiple categories of electric vehicles |
$4.6M | — | Series A | Series A Sep 2021 | 116 | 2008 | — |
| 43 |
Marindows
Provider of AI-powered operating systems for marine applications |
$1.7M | — | Seed | Seed Apr 2022 | — | 2021 | — |
| 44 |
Trajectory
Provider of drone and AI based control system |
$1.1M | — | Seed | Seed Mar 2019 | 14 | 2018 | — |
| 45 |
TrueBizon
Provider of drone based services |
$231.5K | — | Seed | Seed Jul 2019 | 10 | 2014 | — |
| 46 |
UMIAILE
Developer of autonomous small unmanned boats for real-time ocean data collection and analysis to support ocean safety |
— | — | Seed | Seed Oct 2025 | — | 2025 | ↑ Active |
| 47 |
Archeda
Provider of digital satellite solutions |
— | — | Seed | Seed Jun 2025 | — | 2022 | ↑ Active |
| 48 |
Space One
Operator of launch site and provider of space transportation services |
— | — | Series A | Series A Oct 2024 | — | 2018 | ↑ Active |
| 49 |
Aerosense
Develops drones and provides drone-based services |
— | — | Seed | Seed Feb 2024 | 10 | 2015 | — |
| 50 |
LEBO ROBOTICS
Provider of inspection robot |
— | — | Seed | Seed Feb 2023 | 4 | 2018 | — |
Developer of rockets for small payloads. Its rocket uses ethanol as fuel and liquid oxygen as the oxidizer and the rocket is claimed to deliver a payload of 10 kg to an altitude of 130 km and 20 kg to 120 Km. Its other offerings include rocket engines, orbital launch vehicles for the satellite market, and commercial flights.
Developer of satellite-mounted lasers for space debris mitigation and LiDAR. The company designs and develops compact laser payloads for satellites, integrates laser systems with satellite platforms, and provides orbital services to remotely adjust debris motion and perform LiDAR-based remote sensing for environmental and asset monitoring.
Developer of electric vertical takeoff and landing aircraft for urban mobility. The company focuses on creating quiet, lightweight, and low-emission aircraft suitable for use in urban environments. Its aircraft require no runway and allow vertical takeoff and landing in small spaces. The company is working toward receiving type certification for its aircraft.
Developer of an unmanned surface vessel network designed for comprehensive maritime surveillance and data collection. The platform transmits sensor data from marine vessels. It facilitates disaster prevention monitoring and offers maritime monitoring. The platform delivers marine data acquisition for infrastructure maintenance. It enables coastal regions, maritime industries, and marine researchers. The platform prov
Provider of optical inter satellite data relay services. They are developer of an inter satellite communication system based on laser communication aiming to establish a high capacity data transmission network in space.
Provider of water-based propulsion systems for spacecraft. It designs and develops water resist jet thrusters, water ion thrusters, vacuum chambers, and thrust stands. These thrusters use electron cyclotron resonance to develop water plasma that acts like a thruster.
Provider of satellite data pipeline services intended to deliver accurate satellite imagery. The company's technology is focused on selecting satellites from a wide variety of satellites and integrating data, enabling clients to get a report of vegetation that fits their objective, budget, and scope.
Developer of data analysis technology for SAR satellites. It uses data from SAR satellites that emit radio waves themselves and observe the earth's surface based on the information reflected from those radio waves.
Developer of multi-utility drones and solutions. It offers a data analytics platform for UAVs and services such as disaster resistance and more.
Developer of satellite launch rockets using the Rockoon method. The company focuses on advancing space transportation through its launch vehicle development program. It aims to address challenges within the space industry. The company's activities include research and development related to space launch technology. The executive team includes expertise in aerospace engineering and rocket launch operations.
Provider of drone-based atmospheric measurement equipment. It has developed a lidar that measures wind information in the sky and the ocean using remote sensing technology and signal processing technology. It helps users to understand, visualize, and control the wind conditions in the city and sky.
Developer of robotic solutions for space station support and exploration. The company provides robotic arms for internal and external space station services. It also develops lunar rovers for lunar resource exploration and infrastructure development. The company aims to offer safer and more affordable labor in space.
Drone Fund
Mitsubishi UFJ Capital
Incubate Fund
SMBC Venture Capital
SBI Investment
Energy & Environment Investment
Mitsui Sumitomo Insurance Venture Capital
Mizuho Capital
Development Bank of Japan
Global Brain
INCJ
ITOCHU Technology Ventures
Rankings are computed by Radar (Fliar BI) from the Radar company master and are updated periodically. Funding and momentum scores use disclosed equity-funding data only. Figures may lag private rounds. Last updated 2026-06-22.
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