Apparently the Japanese databases don't even list this title or maybe you need to be logged in to search for ero-anime: http://www.anikore.jp, http://sakuhindb.com
The OVA itself doesn't have credits and every search leads to another dead end.
Here the name 藤須笙 appears (the computer geek in ep 02)
For episode 03 there's this text.
「ストラトスフェラの妖精」 = Stratos Fellatio no Yousei = Stratos Fellatio Fairy
笙 = Shou
フロイ = Freud
Other dead ends
From what I understand the "fairies/nymphs" do not necessarily have names. They are some kind of product that everyone can buy and they do not have any genitals.