ACSL Ltd.
6232・Growth Market・Machinery
Business
ACSL was established in 2013 as a startup originating from Chiba University, and is Japan's only industrial drone specialist manufacturer. Positioning autonomous control technology as its core technology, the company develops and sells application-specific aircraft such as the SOTEN (Compact Aerial Photography Drone) and the PF4 (Long-Range Multi-Use Drone) for logistics use. Major customers include government agencies such as the Acquisition, Technology & Logistics Agency and the Ministry of Economy, Trade and Industry, large corporations such as Japan Post, and U.S. government agencies and social infrastructure-related companies. Against the backdrop of heightened economic security concerns, the company has established a strategic position capturing substitute demand away from Chinese-made drones both domestically and internationally. It operates in the single segment of drone-related business, with net sales of ¥2,599 million for FY2025 (ending December 2025).
Business Model
In the Proof of Concept (PoC) Service phase, revenue is generated through flight testing/demonstration services and custom development fees, while platform aircraft sales generate revenue from aircraft and optional parts sales. Mass production sales of application-specific aircraft are becoming the core revenue source, with application-specific aircraft sales surging 482.6% year-on-year to ¥2,046 million in FY2025 (ending December 2025). Following aircraft sales, the company earns ongoing revenue through maintenance fees and consumables sales. In addition, grants and subsidies from national projects such as the SBIR program and NEDO's K Program (the main component of non-operating income of ¥1,245 million in FY2025 (ending December 2025)) form a structure that offsets losses.
Company Strengths
In March 2023, the company obtained Japan's first Type 1 Certification for a Level 4-compatible unmanned aircraft from the Ministry of Land, Infrastructure, Transport and Tourism. The PF2-CAT3 (Type 1 Certified Aircraft) has been utilized in multiple domestic Level 4 flight demonstrations, forming a barrier to entry in terms of regulatory compliance. In addition, the SOTEN (Compact Aerial Photography Drone) has obtained NDAA compliance and FCC certification, positioning it as the only domestically produced aircraft that can continue to be sold in the United States following the tightening of regulations on Chinese-made drones.
Since its founding, the company has developed a proprietary autonomous control system employing model-based control and nonlinear control algorithms, which offers advantages in wind resistance and high-speed flight stability compared to general PID control. It has also achieved fully autonomous flight independent of GPS. R&D expenses for FY2025 (ending December 2025) were ¥1,319 million, maintaining a team of 30 members including the CTO. The company has been selected for the SBIR program (total project value of approximately ¥2.6 billion) and NEDO's K Program (total project value of approximately ¥2.9 billion), advancing technology development utilizing national funding.
The company has accumulated multiple years of order track record for the SOTEN (Compact Aerial Photography Drone) with the Acquisition, Technology & Logistics Agency, and in December 2025 the aircraft was exhibited as equipment at a forum hosted by the Japan Ground Self-Defense Force. The company entered into a capital and business alliance with Japan Post Co. and Japan Post Capital in June 2021, and mass production of the jointly developed PF4 (Long-Range Multi-Use Drone) began in October 2025. In the United States, the company has built a network of more than 20 sales agents with Almo Corporation as the general distributor, receiving orders for 500 units in October 2024 and an additional 400 units in November 2025.
ENVALITH's Perspective
Performance Trend
Revenue for the first quarter of FY2026 (ending December 2026) (January to March 2026) was ¥619 million (down 11.5% year on year). While defense and security-related sales fell to ¥234 million (¥421 million in the same period last year), North American operations expanded sharply to ¥171 million (¥25 million in the same period last year), and social infrastructure maintenance and management held roughly steady at ¥213 million (¥230 million in the same period last year). Cost of sales was significantly compressed to ¥368 million (¥624 million in the same period last year), and gross margin improved to 40.5% (10.8% in the same period last year). Operating loss narrowed to ¥95 million (¥239 million in the same period last year). In the same period last year, subsidy income of ¥293 million was recorded under non-operating income, keeping ordinary loss to just ¥16 million; in the current period, there was no subsidy income, resulting in an ordinary loss of ¥72 million. Revenue over the past five fiscal years (¥621 million → ¥1,635 million → ¥896 million → ¥2,656 million → ¥2,599 million) has been highly volatile, and achieving the full-year forecast of ¥4,000 million will require a substantial concentration of orders in the second half.
Growth Strategy
Multi-axis growth through defense sector deepening, full-scale North American expansion, logistics mass production, and utilization of national projects
Centered on continued orders from the Acquisition, Technology & Logistics Agency, the company aims to expand its share of government procurement for domestically produced drones, buoyed by the designation of specified critical materials under the Economic Security Promotion Act. From March to April 2026, it received multiple orders for delivery of compact aerial photography aircraft, building up a track record.
Centered on SOTEN (Compact Aerial Photography Drone), which is NDAA-compliant and FCC-certified, the company continues sales in the United States through a network of over 20 sales agents. In Canada, it has signed a distributor agreement with Jam Industries Ltd., with full-scale sales expected to begin in June 2026. First-quarter North American revenue expanded rapidly to ¥171 million, approximately seven times the level of the same period of the previous year.
Mass production of PF4 (Long-Range Multi-Use Drone), jointly developed with Japan Post, has begun. In addition to logistics applications, the company is promoting expansion into wide-area surveying and other uses. In February 2026, it conducted a joint demonstration with Japan Post of simultaneous operation of multiple aircraft.
The company is developing a next-generation compact aerial photography drone under the SBIR program (total project value of approximately ¥2.6 billion). Under NEDO's K Program (total project value of approximately ¥2.9 billion), it is working with Preferred Networks to establish AI-driven autonomous control and distributed control technologies. In the first quarter, it recorded ¥25 million in SBIR research and development expenses.
In March 2026, the company's participation in JUDC, scheduled to be established in May 2026, was approved, with the aim of acquiring the latest overseas technology and know-how toward product development that contributes to the defense field. Niklas Bergström was appointed Executive Officer in charge of Advanced Technology in April 2026, strengthening the organizational structure.
Last updated: July 17, 2026