Some of the key players are Allianz, AXA, Nippon Life Insurance, American Intl. Group, Aviva, Assicurazioni Generali, Cardinal Health, State Farm Insurance, Dai-ichi Mutual Life Insurance, Munich Re Group, Zurich Financial Services, Prudential, Asahi Mutual Life Insurance, Sumitomo Life Insurance, MetLife, Allstate, Aegon, Prudential Financial, New York Life Insurance, Meiji Life Insurance, Aetna, CNP Assurances, Pingan, CPIC, TIAA-CREF, Mitsui Mutual Life Insurance, Royal & Sun Alliance, Swiss Reinsurance, Yasuda Mutual Life Insurance, Standard Life Assurance, China, India, Others.