| Σ | # | Presentation | Description | Related |
| 4 | 14 | ⟨a, b | abba=1⟩ | Infinite non-Abelian group | 14 iso |
| 5 | 30 | ⟨a, b | aabba=1⟩ | Infinite non-Abelian group | 40 iso |
| 6 | 60 | ⟨a, b | aaabba=1⟩ | Infinite non-Abelian group | 19 iso |
| 6 | 67 | ⟨a, b | aabbba=1⟩ | Infinite non-Abelian group | 8 iso |
| 7 | 131 | ⟨a, b | aaaabba=1⟩ | Infinite non-Abelian group | 11 iso |
| 7 | 139 | ⟨a, b | aaabbba=1⟩ | Infinite non-Abelian group | 16 iso |
| 7 | 145 | ⟨a, b | aababba=1⟩ | Infinite non-Abelian group | 22 iso, 22 anti-iso |
| 8 | 275 | ⟨a, b | aaaaabba=1⟩ | Infinite non-Abelian group | 7 iso |
| 8 | 283 | ⟨a, b | aaaabbba=1⟩ | Infinite non-Abelian group | 7 iso |
| 8 | 290 | ⟨a, b | aaababba=1⟩ | Infinite non-Abelian group | 9 iso, 10 anti-iso |
| 8 | 298 | ⟨a, b | aaabbbba=1⟩ | Infinite non-Abelian group | 1 iso |
| 8 | 310 | ⟨a, b | aababbba=1⟩ | Infinite non-Abelian group | 2 iso |
| 8 | 336 | ⟨a, b | abbaabba=1⟩ | Infinite non-Abelian group | |
| 9 | 601 | ⟨a, b | aaaaaabba=1⟩ | Infinite non-Abelian group | 8 iso |
| 9 | 609 | ⟨a, b | aaaaabbba=1⟩ | Infinite non-Abelian group | 3 iso |
| 9 | 617 | ⟨a, b | aaaababba=1⟩ | Infinite non-Abelian group | 2 iso, 3 anti-iso |
| 9 | 625 | ⟨a, b | aaaabbbba=1⟩ | Infinite non-Abelian group | 3 iso |
| 9 | 639 | ⟨a, b | aaababbba=1⟩ | Infinite non-Abelian group | 3 iso, 2 anti-iso |
| 9 | 664 | ⟨a, b | aabaabbba=1⟩ | Infinite non-Abelian group | 6 iso, 7 anti-iso |
| 9 | 670 | ⟨a, b | aabababba=1⟩ | Infinite non-Abelian group | 8 iso, 10 anti-iso |
| 9 | 672 | ⟨a, b | aababbaba=1⟩ | Infinite non-Abelian group | 10 iso |
| 9 | 678 | ⟨a, b | aabbaaabb=1⟩ | Infinite non-Abelian group | 12 iso |
| 10 | 1281 | ⟨a, b | aaaaaaabba=1⟩ | Infinite non-Abelian group | 4 iso |
| 10 | 1289 | ⟨a, b | aaaaaabbba=1⟩ | Infinite non-Abelian group | 3 iso |
| 10 | 1297 | ⟨a, b | aaaaababba=1⟩ | Infinite non-Abelian group | 3 iso, 3 anti-iso |
| 10 | 1305 | ⟨a, b | aaaaabbbba=1⟩ | Infinite non-Abelian group | 4 iso |
| 10 | 1312 | ⟨a, b | aaaabaabba=1⟩ | Infinite non-Abelian group | 6 iso, 8 anti-iso |
| 10 | 1320 | ⟨a, b | aaaababbba=1⟩ | Infinite non-Abelian group | 3 iso, 3 anti-iso |
| 10 | 1336 | ⟨a, b | aaaabbbbba=1⟩ | Infinite non-Abelian group | 1 iso |
| 10 | 1356 | ⟨a, b | aaabababba=1⟩ | Infinite non-Abelian group | 2 iso, 3 anti-iso |
| 10 | 1360 | ⟨a, b | aaababbaba=1⟩ | Infinite non-Abelian group | 3 iso |
| 10 | 1364 | ⟨a, b | aaababbbba=1⟩ | Infinite non-Abelian group | 3 iso |
| 10 | 1370 | ⟨a, b | aaabbaabba=1⟩ | Infinite non-Abelian group | 4 iso |
| 10 | 1377 | ⟨a, b | aaabbabbba=1⟩ | Infinite non-Abelian group | 3 iso, 3 anti-iso |
| 10 | 1408 | ⟨a, b | aabaababba=1⟩ | Infinite non-Abelian group | 5 iso |
| 10 | 1419 | ⟨a, b | aababaabba=1⟩ | Infinite non-Abelian group | 5 iso |
| 10 | 1425 | ⟨a, b | aabababbba=1⟩ | Infinite non-Abelian group | 2 iso |
| 10 | 1433 | ⟨a, b | aababbbaba=1⟩ | Infinite non-Abelian group | 1 iso |
| 10 | 1441 | ⟨a, b | aabbaaabba=1⟩ | Infinite non-Abelian group | 1 iso |
| 10 | 1446 | ⟨a, b | aabbaabbba=1⟩ | Infinite non-Abelian group | 3 iso |
| 10 | 1451 | ⟨a, b | aabbababba=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 2783 | ⟨a, b | aaaaaaaabba=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 2791 | ⟨a, b | aaaaaaabbba=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 2799 | ⟨a, b | aaaaaababba=1⟩ | Infinite non-Abelian group | 3 iso, 4 anti-iso |
| 11 | 2807 | ⟨a, b | aaaaaabbbba=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 2815 | ⟨a, b | aaaaabaabba=1⟩ | Infinite non-Abelian group | 3 iso, 4 anti-iso |
| 11 | 2823 | ⟨a, b | aaaaababbba=1⟩ | Infinite non-Abelian group | 4 iso, 3 anti-iso |
| 11 | 2839 | ⟨a, b | aaaaabbbbba=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 2853 | ⟨a, b | aaaabaabbba=1⟩ | Infinite non-Abelian group | 3 iso, 4 anti-iso |
| 11 | 2861 | ⟨a, b | aaaabababba=1⟩ | Infinite non-Abelian group | 2 iso, 4 anti-iso |
| 11 | 2865 | ⟨a, b | aaaababbaba=1⟩ | Infinite non-Abelian group | 3 iso |
| 11 | 2869 | ⟨a, b | aaaababbbba=1⟩ | Infinite non-Abelian group | 3 iso, 4 anti-iso |
| 11 | 2883 | ⟨a, b | aaaabbabbba=1⟩ | Infinite non-Abelian group | 3 iso, 4 anti-iso |
| 11 | 2912 | ⟨a, b | aaabaaabbba=1⟩ | Infinite non-Abelian group | 4 iso, 3 anti-iso |
| 11 | 2932 | ⟨a, b | aaababaabba=1⟩ | Infinite non-Abelian group | 2 iso, 4 anti-iso |
| 11 | 2949 | ⟨a, b | aaababbbaba=1⟩ | Infinite non-Abelian group | 3 iso |
| 11 | 2956 | ⟨a, b | aaabbaaaabb=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 2972 | ⟨a, b | aaabbababba=1⟩ | Infinite non-Abelian group | 3 iso |
| 11 | 2982 | ⟨a, b | aaabbbaaabb=1⟩ | Infinite non-Abelian group | 4 iso |
| 11 | 3062 | ⟨a, b | aababaabbba=1⟩ | Infinite non-Abelian group | 2 iso, 4 anti-iso |
| 11 | 3068 | ⟨a, b | aababababba=1⟩ | Infinite non-Abelian group | 2 iso, 3 anti-iso |
| 11 | 3070 | ⟨a, b | aabababbaba=1⟩ | Infinite non-Abelian group | 1 iso, 4 anti-iso |