VocaNext (VOCALOID Next) is a circle (or doujin group) that has taken on development of "Everyone's Vocaloid project" (みんなのボカロ計画 Min-na no Vocalo Keikaku).
They are the creators of VOCALOIDs Suzune Ring & Hibiki Lui. They are a group made by fans and work for the fans to give "birth" to the next generation of VOCALOIDs.
Everyone's VOCALOID Project
There was a contest to decide what would become the new VOCALOIDs, Yuukari & Muraichi one the illustration contest with Lui and Susunone Ring which would later get re-designed by 119 and their names changed to Hibiki Lui and Suzune Ring.