Get to Know Us

We’re committed to meeting the global demands of industrial and life science markets.

Our People

At Toho Inc. in Chicago, we’re a growing team of motivated business professionals, engineers and scientists.


Within the Toho Group of companies, we employ over 800 people across 10 sites in 5 Countries.


Reflecting the community around us, diverse, talented and passionate about what we do.


Multi-lingual and well traveled, Toho’s people, like our customers, are truly global.

Investing in growth, we share benefits of healthcare, dental & vision insurance, a 401k plan as well as incentives, professional memberships and training from our urban factory-loft work environment.


At Toho, we don’t just accept difference—we celebrate and thrive on it.


Our foundation of 200 years of success is built on the strength, tenacity and talent of our people.


Click here to connect with us!

Our Story

We are a family owned, global business with roots in Nagoya, Japan dating back to 1819 when the Tomita family seized an opportunity to distribute imported American dry goods in feudal Japan. With a legacy of over 200 years in business, we extend to our customers the same commitment to innovation as that of our predecessors.

The Toho Story

In 1819 in Nagoya, Japan, the Tomita family, founders of modern-day Toho Technology, saw a new business opportunity and began distribution of imported American dry goods into feudal Japan. As markets and society changed, the business operation also evolved taking advantage of economic growth in land development, raw materials, and commercial industries.

In the first 100 years of business success, the company expanded operations and continued to meet the growing need for newer products and innovative solutions. In mid-20th century Japan, Toho soon emerged as a distributor and manufacturer of industrial electronics and new technologies with a foundational relationship with Hitachi and other local electronics manufacturers.

In the latter years of the 20th century, Toho diversified operations to include manufacturing of inspection and wet process systems for growth market semiconductor, material characterization, flat panel display and dynamic glass suppliers. Operations in industrial electronics, contract manufacturing, and automation also expanded to meet market demands in microelectronics, automotive and various industrial market segments.

Toho’s Metrology and Wet Process businesses have broadened its product portfolio to include sophisticated cleaning and inspection systems. Since the late 1990’s Toho’s processing and inspection businesses have been further enhanced with consecutive acquisitions and technology transfers from leading American Fortune 500 companies like KLA-Tencor, Nanometrics, Zygo Corporation, Becton Dickinson and other global leaders in technology.

As in the past, Toho continues to dynamically grow and develop new business operations in mature and emerging markets. New businesses have been expanding in China since 1994 and in the United States since 2001 with the establishment of Toho Technology Inc. in Chicago Illinois. Recent operations have been established in Korea, Taiwan, Singapore and Indonesia as opportunities in Asia continue to expand.

Toho Technology is committed to meeting global demands for extremely sophisticated and reliable technological solutions in a wide variety of industrial markets. To fulfill this need, Toho Technology continues to aggressively invest in people, technologies, and operations that will meet the challenges of tomorrow.

The History of Toho

With more than 200 years of service and commitment, Toho has become a trusted name in manufacturing and technology. Today, Toho has offices and distributors in more than 10 countries, delivering innovative solutions to hundreds of customers around the world.

Our Values


We welcome challenge and do what it takes for our customers and for our company to reach our goals.


We are honest, authentic and do business ethically always. Our words and deeds are in sync.


We demonstrate respect for our clients, co-workers and ourselves by being accountable, reliable, trustworthy and responsible in everything we do.


We strive to take our business – and yours – to the next level. In every interaction and with every product, we bring commitment and a craftsman-like spirit of precision.

Who We Support

Toho supports progressive local organizations that make a difference in the communities where we live and work through contributions of our time, talent, and resources.

The Night Ministry is a Chicago-based organization that works to provide housing, health care and human connection to members of our community struggling with poverty or homelessness. Just down the street, Toho volunteers and donates to the Night Ministry each year.

Stop Foodborne Illness is a national nonprofit, public health organization dedicated to the prevention of illness and death from foodborne pathogens. Neighbors in the same building, Toho promotes Stop Foodborne Illness as part of our mission to make a difference in how food is made, tested and verified.

Building Relationships

We’re able to meet changing industry demands because you let us know and we listen. Have something to say?
Question to ask? Let us know. We love to hear from our customers.