e2 - Sindelka

Eaiea - Bruce Koestner

Early Rònic - Andemu Alu

Earth Language - Yoshiko F. McFarland

Earth Minimal

Eastern - Nik Taylor

Eastern Drydic - Drydic_Guy

Eastron - Jonathan R Parsons

Ebisédian - H. S. Teoh

Ebubo - Andrew Nowicki

Ecriture Universelle - Jean Effel

EDA - Arne Arotnow

E Dashul - Anthony Raymond Bullard

Êdhchirriad - Tom Killingbeck

ê Èëe - Jonathana Tegire and Jaaaaaa

Egaeic - Edward Field

Egren - Tuomo Sipola

ehmay ghee chah - Elmer J. Hankes

Ehxduxadiikootu - Various

Eilig - Gustaf Hansson

Eklektu 96 - Herman Miller

Ekspreso - Jay Bowks

Elatoi - John Whatmough

Eleiar - Johannes Hufnagel

Elephant's Memory - Timothy Ingen Housz

Elet Anta - John Fisher

Elheg - Gustaf Hansson

Elkarîl - Mark Rosenfelder

Ellandh - Jedrzej Gren

Elleya - Niels van der Plas

Eloi - John Logan

Eloram - Daniel Myers

Eloshtan - Josh Roth

Elven - Sean K. Reynolds

Elvish - J.R.R. Tolkien

Emeni

Emterz - Edgar c.

Enochian - Fenwick

Entish - J.R.R. Tolkien

Epiq - David J. Peterson

E-Prime - David Bourland

Eretas - Keith Gaughan

Erog - Matt Arriola

Erone - Carrie Schutrick

Esata - Pafu

Esei - Tuomo Sipola

Eseshté-basó - AK Brady

Esiterato - Sandor Csak

Eskimo - Phil James

Espanzë - Jonathan North Washington

Esperando - Jay Bowks

Esperanto - Ludwig Lazarus Zamenhof

Esperanto de DLT - P. M. Witkam

Esperanto sen Fleksio - Rick Harrison

Esreverian - Dtsdesign

Essential World English - Lancelot Hogben

Ethire - Asier

Etrer'aous - Drew Fischer

Etwu - Eternia

Eunoia - Taelons

Eurana - Muhammad Selim

Euransi - Libor Sztemon

EuroEnglish

Eurolang - Philip Hunt

Eurolengo - Leslie Jones

Europan

Europanto - Diego Marani

Europeano - Jay Bowks

Eurún - Arne Duering

Evíendadhail - Matthew Kehrt

Exorian - Suzanne Skinner

Eyahwánsi - René Uittenbogaard