large company; major corporation
《law》company with over 500 million yen in capital or over 20 billion yen in liabilities
彼は大会社に就職できた。
He was able to get a job at a major corporation.
彼女は大会社を辞めて起業した。
She quit her major corporation job and started her own business.
その大会社はライバル企業との合併を発表した。
That major corporation announced a merger with a rival company.