1966 -September-
The first factory was established in Tokyo-to, Higashi-kurume.
1970 -October-
The capital increased to 5 million yen.
1976 -September-
Material holdings topped 10 billion yen.
1979 -Feburary-
The capital increased to 30 million yen.
1980 -October-
Second plant established in Chiba.
1987 -June-
The capital was increased to 60 million yen.
1989 -March-
The capital increased to 80 million yen.
1995 -April-
Headquarters was moved to Sumitomo Real Estate & Development building.
2011 -January-
Rentacom Ltd. was unified with Nikken Lease Kogyo Co.,Ltd.
The capital was increased to 95 million yen.
2013 -May-
Sanriku sales office and Murone factory were established.