Duolingo
Erincent
Mobapp Development Ltd
LyricsTraining
Cakap.com
Media Applications Technologie
MosaLingua Crea
Memrise
MosaLingua Crea
MosaLingua Crea
ChineseSkill
ATi Studios
dA tools
Mango Languages
Lang-8, inc
Portalis
Language Drops
Rosetta Stone Ltd
Language Drops
Xeropan
Babbel
ABA English
Beelinguapp Languages
Language Drops
Busuu
Urva Apps
Neulbomedia Inc.
Bini Games
SL
Zhapps
Zhapps
Nextlingua S.L.
Playlist Corporation
BNR Languages
50languages
cabuu GmbH
LuvLingua
Lingvist Technologies OÜ
Inspiro Games
Springwalk, Inc.
OckyPocky
Hyperthought Games Inc.
Jernung
Athena Soft
Praktika.ai Company
1C-Publishing LLC
Lithium Lab Pte Ltd