Abu Ahmad al-'Askari: He saw the Prophet (PBUH), but was not a companion
Abu Hatim al-Razi: He was not a companion
Abu Nasr ibn Makula: He was a companion and narrated from the Prophet (PBUH)
Ahmad ibn Hanbal: He was not a companion
Ibn Abi Hatim al-Razi: He was not a companion
Ibn Hajar al-'Asqalani: He was a companion, the Prophet (PBUH) came to Medina when he was four years old
Al-Dhahabi: Companion
Al-Mizzi: He was a companion
Muhammad ibn Ismail al-Bukhari: He was a companion