Three One Systems International, Inc. is established on March 1999 in a Suburb of Chicago.

Our parent company "Three One Systems, Inc." is established in 1983 in Japan.

After Establishment of Three One Systems, Inc., we provide various services to Japanese market especially in the area of Database development.

Three One Systems Group has stored so much knowledge regarding the computer system developments and maintenance so that we can provide our technical services worldwide.

To start providing our services in New York, we established "Three One Systems International, Inc. (TOSIN)" in New York state. That's our first step in United States.

From 1999, Three One Systems International, Inc. Chicago started to provide various services to the Japanese companies in United States.

Our goal is to provide much better service for Japanese companies in Chicago area.










orporate History
1983

Tokyo Japan, Establishment of
THREE ONE SYSTEMS, INC.
1986 New York, Establishment of
Three One Systems International, Inc.
1990 Amsterdam, Establishment of
THREE ONE SYSTEMS EUROPE B.V.(TOSE)
1991

Tokyo Japan, Establishment of
Design Technologies (D-TEC) as an sister company.
1999 Chicago U.S.A., Establishment of
Three One Systems International, Inc.
2001

Changing Office Location
(From Schaumburg to Wood Dale, IL)

 
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