密切控股公司 closely held corporations to be considered a closely held corporation closely held corporations closely held corporations closely held corporations closely held corporations “closely held” variety closely held corporations closely held corporations closely held corporations closely held corporations closely held closely held corporations 保有している非上場企業 “closely-held” corporations closely held corporations closely held corporations closely held corporations closely held corporations closely held corporations closely held corporations What is a 'Closely Held Corporation' closely held corporations closely held corporations