Harmonic Drive Systems Inc.
6324・Prime Market・Machinery
Business
Harmonic Drive Systems Inc. is a precision reducer manufacturer that has specialized exclusively in the development, manufacture, and sale of strain wave gearing for over 50 years since its founding. Its core product, Harmonic Drive®, features small size, light weight, and high precision, and is adopted in a wide range of applications centered on joints of industrial robots, as well as semiconductor manufacturing equipment, advanced medical devices, machine tools, satellites, and automotive applications. In addition to standalone reduction gears, the company also offers Mechatronics products (actuators / control devices) that combine motors, sensors, and controllers, providing "Total Motion Control." The company operates its business across four segments—Japan, North America, Europe, and China—and reported consolidated net sales of ¥59,558 million for FY2026 (ending March 2026). In February 2026, the company transitioned its market listing on the Tokyo Stock Exchange from the Standard Market to the Prime Market.
Business Model
The Group's core manufacturing base is the Hotaka Plant in Azumino City, Nagano Prefecture, where sales, manufacturing, and development functions are consolidated at the same site to streamline business processes from inquiry through shipment. Products are organized around two pillars: reduction gears (77.8% of sales) and Mechatronics products (actuators / control devices) (22.2% of sales), with local production and sales conducted at bases in Japan, North America, and Europe. High technical barriers to entry and a continuous order structure driven by customers' design-in adoption underpin the earnings base.
Company Strengths
Since its founding, the company has accumulated over 50 years of development, production technology, and processing expertise in strain wave gearing. Harmonic Drive® has achieved a high global market share in the joints of industrial robots, and this technological accumulation forms an entry barrier that is difficult for competitors to replicate in a short period.
The company operates business sites in Japan, the United States, Germany, South Korea, China, and Taiwan, with Harmonic Drive LLC handling local production and sales in North America, and Harmonic Drive SE (9 consolidated subsidiaries) handling the same in Europe. In FY2026 (ending March 2026), North America sales were ¥12,108 million and Europe sales were ¥16,777 million, with overseas sales accounting for approximately 55% of the total, giving the company a geographically diversified revenue base.
As of the end of FY2026 (ending March 2026), the equity ratio was 72.2% (improved from 69.5% in the previous fiscal year), and net assets stood at ¥80,390 million. The company has entered into an unsecured commitment line agreement (loan limit of ¥8,500 million, expiring March 2029) and a term loan agreement (balance of ¥6,600 million, final repayment March 2032), securing financial flexibility.
ENVALITH's Perspective
Performance Trend
Revenue peaked at ¥71,527 million in FY2023 (ended March 2023), then languished in the ¥55,000 million range in FY2024 (ended March 2024) and FY2025 (ended March 2025), before returning to a recovery trajectory in FY2026 (ending March 2026) with ¥59,557 million (up 7.0% year on year). Operating profit remained stagnant at ¥125 million in FY2024 (ended March 2024) and ¥7 million in FY2025 (ended March 2025), but improved substantially to ¥2,567 million in FY2026 (ending March 2026). This was driven by an improved cost-of-sales ratio resulting from higher factory utilization in the Japan Segment, product price revisions, and the effects of the cost innovation project. On the external environment side, expanding automation investment for industrial robots and demand for advanced semiconductor equipment investment related to generative AI provided tailwinds, while soft demand for industrial robots in China and production adjustments in the automotive sector remained downward pressures. For FY2027 (ending March 2027), the company forecasts revenue of ¥68,000 million and operating profit of ¥6,200 million, pointing to an accelerating recovery.
Growth Strategy
Focusing on AI robots, semiconductors, and e-mobility as priority growth areas, targeting FY2031 (ending March 2031) net sales of ¥100.0 billion and an operating margin of 15% or higher
Secured orders associated with customers' transition to mass production during the formative period of the AI robot market. Under the new medium-term management plan (FY2027–FY2031, ending March 2027 through March 2031), AI robots have been designated as a priority growth field, with market expansion to be captured through strengthened marketing functions and enhanced new product creation capabilities.
Against the backdrop of expanding capital investment demand for advanced semiconductor equipment related to generative AI and data centers, net sales to the semiconductor manufacturing equipment sector turned upward in FY2026 (ending March 2026). The company will continue to strengthen its product supply framework for this field and cultivate it as a stable source of revenue.
Promoting reductions in the cost of sales ratio through reviews of manufacturing methods and improvements in operational efficiency. In FY2026 (ending March 2026), the effects became evident through higher factory utilization rates in the Japan Segment, achieving an operating margin of 4.3%. The company will continue working toward its FY2031 (ending March 2031) target of an operating margin of 15% or higher.
Building on and evolving the previous medium-term plan, the company has designated "AI robots," "aerospace and defense," and "e-mobility" as priority growth fields. As targets for FY2031 (ending March 2031), the company has set consolidated net sales of ¥100.0 billion or more and ROE/ROIC of 10% or higher, and will pursue growth investments with an emphasis on capital efficiency.
Last updated: July 19, 2026

