1. Emerson (Emerson): Founded in 1890, Emerson is a global leader in industrial automation and process control.
2. Honeywell (Honeywell): Founded in 1906, the U.S. Honeywell is a globally recognized high-tech and manufacturing company that offers a wide range of industrial control products, including valves.
3. Siemens: Founded in 1847, Siemens AG of Germany is one of the largest engineering and technology companies in the world, offering a wide range of industrial automation and process control products.
4. ABB: Founded in 1988, ABB Switzerland is a global leader in industrial automation and power technology, offering a wide range of industrial control products.
5. Schneider Electric: Founded in 1972, Schneider Electric of France is a global leader in industrial automation and energy management, offering a wide range of industrial control products.
6. Finnish Valmet (Valmet): Founded in 1969, Finnish Valmet is a global leader in automation and process control for the pulp and paper industry.
7. Yokogawa, Japan: Founded in 1915, Yokogawa Electric Corporation of Japan is a global leader in industrial automation and process control, offering a wide range of industrial control products.
8. Festo: Founded in 1925, Germany's Festo is a global leader in pneumatic technology and industrial automation, offering a wide range of industrial control products.
9. HISAKA (Korea): Founded in 1953, HISAKA (Korea) is a leading valve manufacturer in Korea, offering a wide range of high quality valve products.
10. CHINA SHANGHAI PEOPLE'S ELECTRICAL FACTORY: China Shanghai People's Electrical Factory was established in 1996 and is one of the leading valve manufacturers in China offering a wide range of high quality valve products.
These companies are highly reputed globally for providing quality products and services. However, when choosing the right valve manufacturer, it is important to consider your specific needs, budget and project size to ensure that you find the best solution for you.