Japanese Factory Automation Companies: Who Makes What
You open the control panel on a production line built in Japan and find a Mitsubishi Electric PLC, Omron relays, and a Yaskawa servo drive. On the machine itself there are Keyence sensors, SMC air cylinders, and a Fanuc robot, and the parts reach the line on a Daifuku conveyor. Each nameplate leads to a different company, with its own product range, its own sales channel, and its own support network outside Japan.
This guide is a who's who of the major Japanese factory automation (FA) vendors. It covers what each company makes, how big it is (with the fiscal year stated for every figure), how it compares with Siemens, ABB, and Chinese makers, and which recent deals could change who supports your equipment. It ends with a checklist and questions to ask before you standardize on a vendor or take over a Japanese-built line.
Contents
- Who Makes What: The Short Answer
- How Big Are They? Revenue Ranking
- Company Profiles
- Side-by-Side Comparison
- Global Competitors: Siemens, ABB, KUKA, and Chinese Makers
- Mergers, Sales, and Spin-Offs
- What to Look at When You Compare Vendors
- Checklist: Taking Over a Japanese-Built Line
- Limits of This Guide
- FAQ
- Sources
Who Makes What: The Short Answer
The large Japanese FA vendors have clearly separate home turfs. Keyence is strongest in sensors, Fanuc in robots and CNC systems, SMC in pneumatic (compressed-air) components, and Daifuku in material handling.
Even the largest vendors have a clear home field.
Each company sells products in several fields. This chart places each one in its best-known field.
Behind these names, Japan also has many mid-sized and smaller equipment makers, system integrators (SIers), and FA distributors. These regional and industry-focused companies often combine the big vendors' products into finished equipment, so the builder of your line may not be any of the companies below. For how system integrators quote and hand over a line, see Japanese Robot System Integrators: RFP, Quotes, Acceptance. For smaller Japanese companies that lead global niches, see Hidden Champions in Japan.
Related: Japanese Factory Automation: Makers, Distributors, SIers
How Big Are They? Revenue Ranking
Ranked by revenue in their latest full fiscal year, Keyence leads at JPY 1,169.3 billion for the year ended March 2026. It is the only company on the list above JPY 1 trillion. Fanuc, SMC, and Mitsubishi Electric's FA business follow at roughly JPY 800 billion each.
The top four range from about JPY 800 billion to over JPY 1 trillion.
Sources: each company's English-language results materials. Mitsubishi Electric and Omron show FA segment revenue (Omron: sales to external customers); the others show consolidated net sales (Yaskawa: revenue). Fiscal years differ, so treat this as a rough comparison.
Two cautions apply when you read this ranking:
- Scope differs. For Mitsubishi Electric and Omron, the figure covers only the FA segment, not the whole company. Keyence and Daifuku figures are company-wide and include sales outside factory automation.
- Fiscal years differ. Daifuku now closes its books in December, and Yaskawa closes in February. Most of the others close in March. Use the ranking as a sense of scale, not an exact order.
Company Profiles
The profiles below cover the seven companies in the ranking. Every figure comes from the company's own English-language results or investor materials for the fiscal year stated.
Keyence: Sensors, Measurement, and Machine Vision
Keyence makes sensors, measuring instruments, and machine vision systems. For the fiscal year ended March 2026, net sales were JPY 1,169.3 billion and operating income was JPY 595.8 billion, an operating margin of 51.0%. Roughly two-thirds of its sales come from outside Japan (65.7% in the January–March 2026 quarter).
Keyence lists direct sales without distributors and fabless production (outsourcing manufacturing instead of running its own plants) among its strengths. It also says about 70% of its new products have world-first or industry-first features at launch. A consultative sales approach built around each customer's problems supports those high margins. For what this means when you buy from Keyence, see Buying from Keyence: Direct Sales and Same-Day Shipping.
Fanuc: CNC Systems and Robots
Fanuc runs four divisions:
- FA: CNC systems for machine tools and related products
- Robot: industrial robots
- Robomachine: compact machining centers and other machines
- Service: maintenance and support
Net sales for the fiscal year ended March 2026 were JPY 857.8 billion, and the Robot division made up 44.1%. By region, Asia accounted for 41.1% (China 26.6%, the rest of Asia 14.5%), the Americas 27.1%, Europe 17.8%, and Japan only 12.9%. That puts about 87% of sales outside Japan, which makes Fanuc one of the most global companies on this list.
The Service division brought in JPY 141.1 billion (16.5% of sales). Maintenance for Fanuc equipment running in plants worldwide gives the company a steady revenue base.
SMC: Pneumatic Components
SMC is a leading maker of pneumatic components such as air cylinders and solenoid valves. The company puts its share of the pneumatic equipment market at 36% worldwide and 62% in Japan. For the fiscal year ended March 2026, net sales were JPY 842.5 billion (up 6.4%), and the operating margin was 22.6%. SMC's forecast for the fiscal year ending March 2027 is JPY 1 trillion in net sales. For a pneumatics topic that often comes up on Japanese drawings, see Pneumatic Valve Speed Controller: Meter-Out vs Meter-In.
Mitsubishi Electric (FA Systems): PLCs, Servos, and Inverters
Mitsubishi Electric's FA Systems business covers a wide range of control equipment, including PLCs, servos, inverters, and processing machines. For the fiscal year ended March 2026, segment revenue was JPY 798.2 billion, and the adjusted operating profit margin was 9.4%. The company forecasts JPY 865.0 billion and 11.8% for the fiscal year ending March 2027.
Its target for the fiscal year ending March 2031 is JPY 0.9 trillion in revenue and an adjusted operating profit margin of 16% or more. Digital solutions that combine automation equipment with shop-floor data and AI are a core part of that growth plan. If you are choosing between Mitsubishi and other controllers, see Mitsubishi vs Keyence vs Omron vs Siemens: Choosing a PLC.
Daifuku: Material Handling Systems
Daifuku builds automated warehouses, conveyors, and other material handling systems for factories, distribution centers, and airports. For the fiscal year ended December 2025, net sales reached a record JPY 660.7 billion, and the operating margin was 15.3%.
About 72.5% of sales went to customers outside Japan. By industry, electronics (including semiconductors) was the largest at JPY 251.0 billion. Daifuku also serves commerce and retail, automotive, and airport customers, so its customer base is spread across many industries.
Yaskawa Electric: Motion Control and Robots
Yaskawa's business stands on two pillars: motion control (servo motors, inverters, and controllers) and industrial robots. For the fiscal year ended February 2026, revenue was JPY 542.1 billion. Robotics brought in JPY 247.0 billion, and Motion Control JPY 236.1 billion.
Because the two businesses are about the same size, Yaskawa is strong in both the robot arm and the servo motors that drive it. Its results move with customers' capital spending. In that fiscal year, revenue rose 0.8% while operating profit fell 5.7%.
Omron (Industrial Automation): PLCs, Sensors, and Safety
Omron's Industrial Automation business offers a broad control lineup, including PLCs, sensors, safety components, and robots. For the fiscal year ended March 2026, the business had sales of JPY 409.5 billion, up 12.3%.
That is more than half of Omron's net sales from continuing operations (JPY 767.4 billion), so industrial automation is now the company's core. Omron has also decided to separate its electronic components business (Devices & Module Solutions) and reported it as a discontinued operation in those results. The company is shifting toward a business built around factory automation.
Side-by-Side Comparison
The table puts the seven companies next to each other. A dash means the figure was not checked for this guide, not that it is zero.
| Company | Main products | Fiscal year ended | Revenue (JPY billion) | Operating margin | Sales outside Japan |
|---|---|---|---|---|---|
| Keyence | Sensors, measuring instruments, machine vision | March 2026 | 1,169.3 | 51.0% | About 2/3 (65.7% in Jan–Mar 2026 quarter) |
| Fanuc | CNC systems, robots, robomachines, service | March 2026 | 857.8 | 21.4% | About 87% |
| SMC | Pneumatic components | March 2026 | 842.5 | 22.6% | — |
| Mitsubishi Electric (FA Systems) | PLCs, servos, inverters, processing machines | March 2026 | 798.2 | 9.4% (adjusted) | — |
| Daifuku | Automated warehouses, conveyors, material handling | December 2025 | 660.7 | 15.3% | About 72.5% |
| Yaskawa Electric | Servo motors, inverters, robots | February 2026 | 542.1 | 8.7% | — |
| Omron (Industrial Automation) | PLCs, sensors, safety components, robots | March 2026 | 409.5 | 10.4% (segment) | — |
Global Competitors: Siemens, ABB, KUKA, and Chinese Makers
Factory automation is one of the few fields where Japanese companies hold a strong global position, but they face serious competitors in Europe and China.
The main rivals are large, diversified European groups and domestic Chinese makers.
Sources: ABB, IFR, and company materials. ABB's robotics division had 2024 revenues of USD 2.3 billion.
Siemens has built up a large software business for design and simulation on top of its control hardware, and it sells digital connections across the whole plant. Japanese vendors are moving the same way: Mitsubishi Electric names digital solutions as a growth pillar. Pairing hardware with software is now a shared battleground.
In robots, Chinese makers are gaining share at home. According to the International Federation of Robotics (IFR), 295,000 industrial robots were installed in China in 2024, 54% of the global total, and Chinese suppliers took 57% of that market. Holding share in the largest market is a major challenge for Japanese robot makers.
Many Japanese FA companies, however, hold high share or high margins in specific components: pneumatics, sensors, servos, and robots. SMC's stated 36% global share in pneumatics is one example. A lineup of specialist makers that lead the world in one field is a distinctive strength of the Japanese vendors.
Mergers, Sales, and Spin-Offs
The FA industry is reorganizing worldwide, through acquisitions of robot makers and system integrators on one side and sales or spin-offs of businesses on the other. Deals like these can change the brand, the sales channel, or the support contact for equipment already on your floor.
Two trends: buying robot makers and integrators, and narrowing business portfolios.
ABB announced an enterprise value of USD 5.375 billion for the robotics sale, with closing expected in mid-to-late 2026.
Hitachi's purchase of JR Automation drew attention because Hitachi bought integration capability, not hardware. Manufacturers increasingly want equipment that runs as a finished line, and the ability to deliver that is gaining value. Hitachi added Germany's MA micro automation in 2024 and placed it under JR Automation.
ABB chose to sell its robotics division to SoftBank Group instead of the spin-off and separate listing it had planned. SoftBank has been investing in AI and robotics, so the deal also brings capital from outside the FA industry. If you run ABB robots, confirm with ABB which entity will handle service and spare parts after closing.
Mitsubishi Electric's acquisition of Nozomi Networks adds security for industrial control systems (OT security). It shows that competition in FA is spreading from hardware into data and cybersecurity.
What to Look at When You Compare Vendors
Revenue alone does not tell you how a vendor will behave as your supplier. Three numbers from public results materials give a more useful picture.
Each one can be found in a company's results materials.
Look for these in earnings releases, results presentations, and integrated reports.
Operating Margin
Operating margins in this group range from 51.0% at Keyence to 8.7% at Yaskawa Electric (fiscal year ended February 2026, calculated from revenue and operating profit). Margin reflects pricing power and the value customers place on the product. It also shows how much room a vendor has to fund new products, engineering support, and service staff.
Sales Outside Japan
Several of these vendors sell more abroad than at home: about 87% at Fanuc and about 72.5% at Daifuku. A high overseas share suggests the vendor depends on customers outside Japan and has reason to support them. It does not guarantee local stock or service engineers in your country, so check that directly.
Business Mix
A vendor whose sales depend on one product or one customer industry grows fast when that industry booms and drops hard when it slows. Yaskawa splits roughly half and half between robots and motion control, while robots make up just over 40% of Fanuc's sales. Even among robot makers, the mix changes how each one rides the capital-spending cycle.
Segment data also shows how central your product line is to the vendor. A product line that is a small, shrinking part of a large company deserves a question about long-term support.
Checklist: Taking Over a Japanese-Built Line
Use this list when you receive equipment from a Japanese machine builder or plan to standardize on a Japanese vendor.
- List every major component by maker and model: PLC, HMI, servo drives and motors, inverters, robots, sensors, vision systems, pneumatic valves and cylinders, and conveyors.
- Note which items are Japan-domestic models. Ask whether an equivalent global model exists in your country.
- Confirm the local sales channel for each maker: direct sales office, distributor, or only through the machine builder.
- Confirm who provides local service for robots and servos, and how quickly an engineer can come to your site.
- Agree on a recommended spare parts list with lead times quoted for your country, not for Japan.
- Get PLC programs, robot programs, and parameter backups in a format your team can open, plus the software versions used.
- Check the language of HMI screens, alarm texts, and manuals. Ask for English versions before acceptance.
- Check whether any component maker is going through a sale or spin-off, and who will support the product afterward.
- Agree on the support route: does the machine builder handle first-line support, or do you call each component maker directly?
For the acceptance steps that come before handover, see FAT and SAT with Japanese Suppliers.
Questions to Ask the Machine Builder or Vendor
- Which components on this equipment are Japan-only models, and what are the global equivalents?
- Who is our support contact for each major maker in our country?
- What is the lead time for the recommended spares if we order locally?
- Which software and license versions are needed to edit the PLC, HMI, and robot programs?
- Are any of these products scheduled for discontinuation? If so, what is the replacement?
- If a maker's business changes owner, will warranty and service terms stay the same?
Sample Inquiry Email
Subject: Local support and spare parts for [equipment name], [project or PO number]
Dear [Name],
We are preparing to operate [equipment name], delivered under [PO number], at our plant in [city, country]. Before acceptance, please send us the following:
- A component list with maker, model, and quantity for the PLC, servo drives, robots, sensors, and pneumatic parts
- For each Japan-domestic model, the equivalent model available in [country]
- The local support contact for each maker
- A recommended spare parts list with lead times for delivery to [country]
- Backups of the PLC, HMI, and robot programs, with the software versions used
If any component is planned for discontinuation, please let us know the replacement model.
Best regards,
[Your name]
[Company, department]
Limits of This Guide
- Figures cover different fiscal years and, for Mitsubishi Electric and Omron, only the FA segment. Do not read the ranking as an exact market-share order.
- Each company sells across several fields. The "home field" labels are simplifications.
- Local sales channels, stock, and service coverage vary by country and change over time. Confirm them with the vendor's office in your region.
- Deals that were pending when this guide was written, such as ABB's robotics sale, may have closed or changed since. Check the companies' latest announcements.
FAQ
What is the largest Japanese factory automation company?
By revenue, Keyence leads with JPY 1,169.3 billion for the fiscal year ended March 2026, the only one above JPY 1 trillion. Fanuc, SMC, and Mitsubishi Electric's FA Systems business follow at about JPY 800 billion each.
Which Japanese FA company has the highest profit margin?
Keyence, with an operating margin of 51.0% for the fiscal year ended March 2026. SMC (22.6%) and Fanuc (21.4%) come next, while Yaskawa Electric was at 8.7%. Product value and sales model drive large differences within the same industry.
Who are the major Japanese industrial robot makers?
Fanuc and Yaskawa Electric are the best known. Their main overseas competitors include ABB and KUKA, but the field is shifting: ABB announced the sale of its robotics division to SoftBank Group, and KUKA came under China's Midea Group after a 2016 takeover offer.
Fanuc vs Yaskawa: what is the difference?
Fanuc combines robots with CNC systems for machine tools, and robots were 44.1% of its sales in the fiscal year ended March 2026. Yaskawa splits its business almost evenly between robots and motion control (servo motors and inverters).
Are there Japanese FA suppliers beyond the big names?
Yes. Japan has many mid-sized and smaller equipment makers, system integrators, and FA distributors. They often combine the big vendors' products into finished equipment, so they may be the builder of your line even if their name is not on the components.
Sources
- Keyence: FY2025 Financial Results Materials (April 24, 2026); Business Model and Strengths
- Fanuc: Financial Results for FY2025, reference material (April 24, 2026)
- SMC: Consolidated Financial Results for the Fiscal Year Ended March 31, 2026 (reference translation); SMC Guide (market share)
- Mitsubishi Electric: FA Systems Business, IR Day 2026 (May 29, 2026); Mitsubishi Electric Completes Full Acquisition of Nozomi Networks
- Daifuku: Consolidated Financial Results for the Fiscal Year Ended December 31, 2025; FY2025 results presentation
- Yaskawa Electric: Results Briefing for FY2025 (ended February 28, 2026)
- Omron: Consolidated Financial Results for the Year Ended March 31, 2026 (U.S. GAAP)
- ABB: ABB to divest Robotics division to SoftBank Group
- IFR: World Robotics 2025 press release on China
- Hitachi: Hitachi Completes Acquisition of MA micro automation of Germany
Original article in JapaneseThis guide is adapted from a MONOSCOPE article written for readers in Japan: FA業界の主要企業と勢力図｜売上ランキング・各社の強み・再編動向
About the editor
MONOSCOPE EditorFOUNDER & EDITORSpent about ten years at a plant equipment maker and a plant engineering company, proposing, designing, and commissioning equipment, then moved into web marketing. Now a web consultant for B2B manufacturers, helping them explain their products and technology. Licensed in Japan as an Energy Manager and a Third-Class Chief Electrical Engineer.
Has run an engineering blog since 2017 (500+ articles) and a Japanese YouTube channel with about 20,000 subscribers. Each English guide is written from the Japanese shop-floor point of view and checked against the cited standards.
