| Σ | # | Presentation | Description | Related |
| 6 | 107 | ⟨a, b | aabb=ba⟩ | Infinite cancellative non-commutative monoid | |
| 6 | 121 | ⟨a, b | baa=abb⟩ | Infinite cancellative non-commutative monoid | |
| 7 | 217 | ⟨a, b | aabab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 7 | 262 | ⟨a, b | abab=baa⟩ | Infinite cancellative non-commutative monoid | |
| 8 | 445 | ⟨a, b | aabaab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 9 | 927 | ⟨a, b | aabaaab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 9 | 976 | ⟨a, b | abaabab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 9 | 1107 | ⟨a, b | abaaab=baa⟩ | Infinite cancellative non-commutative monoid | |
| 9 | 1249 | ⟨a, b | abaab=baba⟩ | Infinite cancellative non-commutative monoid | |
| 10 | 1937 | ⟨a, b | aabaaaab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 10 | 2295 | ⟨a, b | abaaaab=baa⟩ | Infinite cancellative non-commutative monoid | |
| 11 | 4063 | ⟨a, b | aabaaaaab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 11 | 4242 | ⟨a, b | abaaabaab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 11 | 4289 | ⟨a, b | ababaabab=ba⟩ | Infinite cancellative non-commutative monoid | |
| 11 | 4757 | ⟨a, b | abaaaaab=baa⟩ | Infinite cancellative non-commutative monoid | |
| 11 | 5349 | ⟨a, b | ababaab=baba⟩ | Infinite cancellative non-commutative monoid | |
| 11 | 5827 | ⟨a, b | abaaab=baaba⟩ | Infinite cancellative non-commutative monoid | |