ASO INTERNATIONAL, INC.
9340・Standard Market・Services
Business
Aso International Co., Ltd. is a dental laboratory group specializing in orthodontic dental prosthetics, founded in 1982. The Group (comprising 6 companies in total, including 4 consolidated subsidiaries) provides more than 100 types of orthodontic dental prosthetics—including orthodontic appliances (expansion plates, retainers, etc.), AsoAligner DIGITAL (clear aligner orthodontic device), and I.D.B.S (Indirect Bonding System)—to approximately 26,000 dental institutions nationwide that offer orthodontic treatment. The company listed on the Standard Market of the Tokyo Stock Exchange in December 2022. It has a sales track record with all 29 dental universities in Japan, and the number of dental institutions it transacted with reached 6,425 in the fiscal year under review. The company has overseas bases in the Philippines, Hawaii, and the U.S. mainland, and is accelerating its global expansion.
Business Model
The company receives per-patient dental technician work orders from dental institutions and produces custom orthodontic appliances through a combination of in-house production (46 staff domestically and at its Philippine base) and outsourcing to 57 partner facilities. This structure allows flexible response to order fluctuations while keeping fixed costs low. In addition, the company sells digital products (intraoral scanners, LuxCreo 3D printers, etc.) through purchase-and-resale (product sales of ¥574 million), and is expanding revenue from ancillary services such as seminar contracting, materials sales, and license fees.
Company Strengths
The company has business relationships with 6,425 of the approximately 26,000 dental institutions in Japan that provide orthodontic treatment, and has a sales track record with all 29 dental universities in Japan. Long-term business relationships built through use in dental university practical training and research lead to continued use by newly opened practitioners, while word-of-mouth customer referrals support a stable increase in business partners.
Sales of digital orthodontic dental appliances, including AsoAligner DIGITAL and the HARMONY lingual system, expanded 9.5% year on year to ¥1,182 million. Sales of digital products also performed well, and process efficiency gains from manufacturing DX also contributed, resulting in an operating margin of 17.3% (up 1.9 percentage points year on year).
At the end of the consolidated fiscal year under review, the equity ratio stood at 88.0% (86.8% in the previous fiscal year), with cash and cash equivalents of ¥1,945 million. All investments, including capital expenditures of ¥29 million, were funded from internal funds, and management has explicitly stated there are no particular financial issues. This high level of financial soundness underpins the agility of growth investments, including overseas expansion.
ENVALITH's Perspective
Performance Trend
Past results show stable growth, with revenue of ¥3,190 million in FY2023 → ¥3,545 million in FY2024 → ¥3,796 million in FY2025. For the nine months ended Q3 FY2026 (ending June 2026), revenue was ¥3,057 million (+8.5% YoY), operating profit was ¥509 million (+11.7% YoY), ordinary profit was ¥519 million (+20.4% YoY), and net profit was ¥366 million (+19.3% YoY), with increases in both revenue and profit across all indicators. As an external factor, a significant reduction in foreign exchange losses (from ¥27,728 thousand in the same period of the previous year to ¥6,817 thousand in the current period) contributed to the high growth in ordinary profit. Meanwhile, rising procurement costs due to material costs, labor costs, and yen depreciation (cost of sales +¥148,838 thousand) were absorbed through improved production efficiency and increased orders for high-value-added products. There has been no revision to the full-year forecast (revenue of ¥4,013 million, operating profit of ¥746 million).
Growth Strategy
Pursuing sustainable growth through three axes: deepening digitalization, expansion into the U.S. mainland market, and manufacturing DX
Strengthening proposals for digital products such as intraoral scanner-compatible products and 3D printer-molded items to drive higher order unit prices per client clinic. The steady performance of digital orthodontic dental appliances during the cumulative third quarter has driven sales growth, and the initiative is progressing steadily.
Aiming to expand overseas sales by continuing to provide high-quality, high-value-added products to major U.S. university hospitals such as UCSF, University of Texas, and Boston University. Steady growth in overseas sales driven by company-hosted seminars and sales channel expansion contributed to the increase in cumulative third-quarter sales.
Continuing to promote manufacturing DX within the group to improve profit margins through enhanced production efficiency. In the cumulative third quarter, depreciation expenses decreased year-on-year to ¥31,321 thousand (from ¥33,775 thousand in the prior year), reflecting progress in efficiency gains, while expanded orders for high-value-added products absorbed cost increase factors, improving the operating profit margin.
As a second-year initiative of the Medium-Term Management Plan 2025-2028, promoting the rebuilding of the online ordering system. Aiming to improve customer convenience and streamline order processing, thereby establishing a foundation to support the expansion of personnel and manufacturing capacity accompanying business growth.
Last updated: July 17, 2026

