“有实力的”用英语怎么说？

a company that has been chosen as attractive for takeover by a potential acquirer. 已经被一家有实力的公司选为接受对象的公司。 I should like the chance to fence with a worthier opponent. 我希望有机会跟实力相当的对手击剑。 A powerful family-controlled commercial combine of Japan. 财阀在日本，由有实