SEIWA ELECTRIC MFG. CO., LTD.
6748・Standard Market・Electric Appliances
Business
Seiwa Electric Mfg. Co., Ltd. is an electrical equipment manufacturer founded in 1949 and based in Kyoto, operating around three core businesses: Information Equipment, Lighting Equipment, and Components. In the Information Equipment Business, the company supplies Road & Tunnel Lighting Fixtures, Road Information Display Systems, and LED Traffic Signals to public infrastructure customers such as the Ministry of Land, Infrastructure, Transport and Tourism and expressway operators. In the Lighting Equipment Business, the company provides explosion-proof LED lighting fixtures for industrial facilities such as oil refineries as well as for roads and tunnels. In the Components Business, the company sells EMC (Electromagnetic Compatibility) Components (gaskets, ferrite cores, etc.) and the Wiring Protection Equipment (Catching Duct) to growth fields such as EVs, robotics, and semiconductor manufacturing equipment. In addition to five domestic subsidiaries, the company has an overseas group in China and Vietnam, securing manufacturing cost competitiveness.
Business Model
Of total net sales of ¥25,386 million, the core pillars are the Information Equipment Business (¥9,531 million), the Lighting Equipment Business (¥9,905 million), and the Components Business (¥5,420 million). Information Equipment and Lighting Equipment build up orders through both public-sector procurement (build-to-order) and private-sector capital investment, recognizing revenue on a percentage-of-completion basis. Components pursues high-value-added earnings through mass sales of standardized products as well as solution-based sales leveraging the company's own EMC Lab (Anechoic Chamber / Shield Room) (10m method anechoic chamber, ISO/IEC17025 accredited). The Lighting Equipment Business boasts the highest operating margin of all segments, at 20.1%.
Company Strengths
The Lighting Equipment Business achieved segment profit of ¥1,986 million on net sales of ¥9,905 million in FY2025, a profit margin of 20.1%. Its position in the niche market of explosion-proof LED lighting fixtures, which has high barriers to entry, together with cost competitiveness derived from collaboration with overseas group companies in China and Vietnam, underpins this high profitability.
The 10m-method Anechoic Chamber (EMC Lab1) has been accredited as an ISO/IEC17025:2017 testing laboratory, enabling EMC evaluation at an industry-leading upper frequency limit. In 2025, EMC Lab3 (Shield Room), specializing in immunity testing, was newly established, creating an integrated system covering both emission and immunity testing. This has significantly expanded the applicable standards for the robotics and semiconductor manufacturing equipment fields.
Since developing the electric road information display board in 1969, the company has continuously supplied display systems for expressways, ordinary roads, tunnels, rivers, and tsunami information to domestic public infrastructure. The order backlog for the Information Equipment Business in FY2025 stood at ¥9,083 million (72.4% of the previous period), and sales to East Nippon Expressway Company Limited reached ¥2,847 million (11.2% of consolidated net sales).
ENVALITH's Perspective
Performance Trend
Revenue over the past five fiscal years has remained flat, ranging between ¥23,430 million and ¥26,230 million. In FY2025, revenue rose slightly to ¥25,386 million, but operating profit fell back to ¥1,649 million from ¥1,772 million in the prior period. In Q1 of FY2026 (ending December 2026), revenue was ¥5,784 million (down 7.2% year-on-year), operating profit was ¥416 million (down 39.2% year-on-year), and quarterly net income attributable to owners of the parent was ¥264 million (down 44.3% year-on-year), representing a substantial decline in earnings. The main cause was a decrease in orders for the Road Information Display System within the Information Equipment Business. As external factors, U.S. trade policy trends, volatility in financial and capital markets, and the situation in the Middle East are heightening uncertainty over the economic outlook. The full-year forecast calls for revenue of ¥26,000 million (up 2.4% year-on-year) and operating profit of ¥1,900 million (up 15.2% year-on-year), representing an increase in both revenue and profit, but the Q1 progress rate stood at only 21.9% on an operating profit basis, reflecting a structure weighted toward the second half of the year.
Growth Strategy
Aiming for sustainable growth through three pillars: LED conversion policy, EMC demand, and smart-ification of Information Equipment
Against the backdrop of the 2027 ban on fluorescent lamp manufacturing and the government's target for LED conversion of road lighting by FY2030, the company is promoting expanded sales of explosion-proof industrial lighting and multi-functional lighting systems. In Q1 of FY2026 (ending March 2026)*, net sales reached ¥2,455 million (up 7.1% year on year) and profit reached ¥601 million (up 13.8% year on year), progressing steadily. Full-year forecast is ¥10,400 million (up 5.0% year on year). [*Note: this refers to the fiscal year ending December 2026]
The 2025 launch of the newly established EMC Lab 3 (Shield Room) has expanded immunity testing capabilities. The company is capturing growing demand for EMC (Electromagnetic Compatibility) Components for EVs, autonomous driving, robotics, and semiconductor manufacturing equipment. In Q1 of the fiscal year ending December 2026, net sales reached ¥1,233 million (up 9.1% year on year) and profit reached ¥92 million (up 81.4% year on year), a substantial increase. Full-year forecast is ¥5,800 million (up 7.0% year on year).
The company is promoting smart-ification of its existing Road Information Display System product lineup and addressing the maintenance market. It aims to expand its order-taking scope through stronger engineering capabilities and reconstruction of its sales network. In Q1 of the fiscal year ending December 2026, net sales fell sharply to ¥1,934 million (down 27.7% year on year). The order backlog remained at a low level of ¥8,955 million (down 26.7% year on year), and a recovery in orders in the second half is a key challenge for achieving the full-year forecast of ¥9,400 million (down 1.4% year on year).
The company is working to expand marketing functions and strengthen solution sales capabilities on a company-wide basis, while promoting the development of competitive new products. It aims to improve profitability through effective use of management resources and optimization of its businesses. The full-year operating profit forecast for the fiscal year ending December 2026 is ¥1,900 million (up 15.2% year on year), an increase in profit.
Last updated: July 17, 2026