Only 6 of the 267 groups of order 64 are listed.
All the groups listed have been completely calculated.
Small group number 33 of order 64
Small group number 102 of order 64
Small group number 136 of order 64
Small group number 239 of order 64 Direct product Q8 x Q8
Small group number 242 of order 64 Sylow 2-subgroup of L_3(4)
Small group number 245 of order 64