All are capsulated bacteria except -
The diphtheria bacillus are pleomorphic, nonsporing noncapsulated and nonmotile they are gram-positive .pleomorphic, nonspoing, encapsulated, nonmotile gram-positive bacteria REF:Ananthanarayan and Panikkar's textbook of microbiology 9th edition pg no 236
Neisseria
Corynebacterium diphtheriae
Haemophillus
Streptococcus saliverius
general microbiology