- Apituka by Ety (21 features)
- Dacayan by Ali Ghozali (143 features)
- Eezee by Todd Moyer (141 features)
- Esperanto by Ludwik Leyzer Zamenhof (140 features)
- Esperanto 1894 by L. L. Zamenhof (35 features)
- FIAL by Jeffrey S. Jones (116 features)
- Frangian Sign by Dillon Hartwig (124 features)
- Frenkisch by David Parke (104 features)
- Globasa by Hector Ortega (83 features)
- Idiom Neutral by Akademi Internasional de Lingu Universal (18 features)
- Ido by Louis de Beaufront, Louis Couturat (143 features)
- Intal by Erich Weferling (118 features)
- Interglossa by multiple authors (51 features)
- Interlingue (Occidental) by Edgar de Wahl (115 features)
- Ipiki by Xing (69 features)
- Kotava by collective under the pseudonym of Staren Fetcey (136 features)
- Lingua Franca Nova by C. George Boeree (116 features)
- Lingwa de Planeta by Dmitrij Ivanov et al. (134 features)
- Mondlango by He Yafu (132 features)
- mundeze by Djuna de Lannoy (87 features)
- Novial by Otto Jespersen (136 features)
- Omni-kan by Qwynegold (56 features)
- Pandunia by Risto Kupsala (48 features)
- Patakasama by calo (75 features)
- Sambahsa by Dr. Olivier Simon (138 features)
- SASXSEK by Dana Nutter (111 features)
- Shinsali by Anatoli Kudrin (1 feature)
- SIAL by Jeffrey S. Jones (118 features)
- TBD by Kiriyow (94 features)
- TIAL by Jeffrey S. Jones (138 features)
- Universalglot by Jean Pirro (100 features)
- Uropi by Joël Landais (139 features)
- Valtal by Xing (134 features)
- Waa by Xing (143 features)