This architectural firm was founded at Winnipeg in 1968 by partners Roy Izen, Ron Keenberg, Stan Osaka, and Jim Yamashita. Its name was based on the first letter of the surnames of the founders.
Architect
Period
Julius Roy Izen (1936-2024)
1968-?
Ronald “Ron” Keenberg
1968-?
Stanley Hiroaki “Stan” Osaka (1931-2015)
1968-1978
Terrance Richard “Terry” Stratton (1938-2026)
1975-1993
James Shigemi “Jim” Yamashita
1968-?
Some of its design work in Manitoba included:
Building
Location
Year
Status
University Student Union Building
Fort Garry Campus, University of Manitoba, Winnipeg
1969
Hampton Green Apartments
323 Wellington Crescent, Winnipeg
1970-1971
House
2 Avonherst Street, Winnipeg
1974
1100 Chancellor Drive, Winnipeg
1978-1979
1867 Springfield Road, Winnipeg
1980-1982
Brown House [Leon Abraham Brown] (renovation)
865 Wellington Crescent, Winnipeg
1989
Delta Marsh Birdshack
RM of Portage la Prairie
1989
This page was prepared by Gordon Goldsborough.
Page revised: 13 June 2026
