
12001 Lackland Road
St. Louis, MO 63146




The world’s leading companies start with Watlow for all their thermal needs.
Since 1922 Watlow has consistently delivered highly innovative products for a broad array of industries. Whenever thermal is a critical part of the process, Watlow provides industry-leading solutions that deliver uniform and reliable heat. Our product lines consist of a wide variety of electric resistance heaters, sensors, controllers and software; all the components that make up the thermal loop.
Watlow’s engineering prowess is second to none with deep domain knowledge in the most demanding industries where our technology can be leveraged best. Thermal expertise, world-class manufacturing capabilities across the globe and a long-standing reputation for getting things done uniquely position us to continue delighting our customers as we approach the next century of doing business.
Watlow holds more than 1000 patents and employs 2200 team members worldwide with 15 manufacturing and technology facilities in the United States, Mexico, Europe and Asia. Our company has grown at an exponential rate, but our commitment remains the same – to provide our customers with superior products and services for their individual needs.
Customers Thrive with Watlow Thermal Solutions
Watlow provides best-in-class engineering expertise and leading thermal products that enable customers to thrive. Watlow designs and manufactures complete thermal systems, allowing us to recommend, develop and deliver the optimum thermal solution.
Watlow, with over $370 million in annual sales, manufactures thermal systems for a range of industries including semiconductor processing, energy processes, diesel emissions, foodservice equipment, medical equipment and aerospace and defense. Our customers receive the highest level of technical expertise combined with exceptional customer service.