The IPEA (International Project Evangelion Agency) is a mysterious organization under the jurisdiction of the United Nations.
The IPEA operate independently of Nerv. They are in charge of the Eva containment facility that Eva-02 is placed within under the terms of the Vatican Treaty. Given that Eva-02 was later sortied against the 10th Angel, with Mari Makinami Illustrious as pilot and the facility's technicians assisting her, IPEA may also possess independent power to mobilize Evangelion units.
Eva-05's boot-up screen indicates that the subsystem is of IPEA manufacture, suggesting that IPEA also plays a role in the preparation of at least some Eva units.
IPEA's logo incorporates a three-eyed, two-cored, Eva-like being to which Evangelion Unit-01 at Near Third Impact achieves a strong resemblance. A more subtle allusion between the two is provided via the way the IPEA logo is situated over the containment silo doors: when the doors open, light streams out between the logo's two cores in much the same way as light streams from Eva-01's heart.
The logo incorporates the olive branches found on the U.N.'s emblem. Another similar design is that of the International Atomic Energy Agency whose logo has both the atom and the olive branches.
While the IPEA's existence and goals can be easily explained by international power struggles -- i.e., countries not wanting their respective political adversaries to be capable of accumulating too much power through Evangelions -- more ominous implications lie beneath the surface. Preventing each country from possessing any more than three active Evangelions also means that four Evas can never converge at the same place. In other words, the IPEA want to prevent another Second Impact from happening, hence the inclusion of one of the Adams in their logo. Assuming this is true, it can be further inferred that the IPEA are acting upon incomplete information, as both Near Third Impact and Fourth Impact demonstrate that a single Eva is sufficient to cause an Impact. While indicating that some sort of cover-up took place, it was clearly nowhere near as complete as the Second Impact cover-up in NGE, as the IPEA not only knows about the Adams, but they know that a connection exists between the Adams and Evas (else they would never think four Evas would be capable of triggering a repeat of Second Impact).
|Seele | Gehirn | United Nations | IPEA | JSSDF | Wille|
|Special Agency Nerv:|
|Nerv Headquarters | Nerv 1st Branch | Nerv 2nd Branch | Nerv 3rd Branch|
|Nerv 7th Branch (Tabgha Base) | Bethany Base | Golgotha Base|