3Peace, 50-State Initiative, Academy of Tomorrow, Acolytes, Action Pack, Adaptoids, A.I.M., Advocates Squad, Agency X, Agents of Atlas, Air Force, Alaska Initiative, Alliance of Evil, Alpha Flight, Alpha Prime, Alpha Squadron, Alpha Strike, Americommand, Anachronauts, Ani-Men, Annihilation Wave, Annihilators, Antithesis, ARMOR, Ascendants, Assassins' Guild, Assembly, Avatars, Avengers, Avengers AI, Avengers Academy, Avengers of the Supernatural, Avengers Underground, Avengers Unity Division, BAD Girls, Inc., Band of Baddies, Band of the Bland, Banished, Batroc's Brigade, Battalion, Bedlam Brothers, Beetles, Berserkers, Beta Flight, Big Hero 6, Black End, Black Order, Boston Terrors, Brood Mutants, Brotherhood of Mutant Supremacy, Brothers Grimm, Brute Force (Thunderbolts foes), Brute Force