ApostleCorp is a fictional organization in the video game, Deus Ex: Invisible War.
As described in game, ApostleCorp was founded by Paul Denton and Tracer Tong. Its purpose was to develop improved nanotechnology so that JC could work better with the Helios AI. It also had to develop a universal nanite strain acceptable to all humans.
The organization is secret and covert. It has numerous fronts including Tarsus Academies, a global chain of schools that officially provides the best education and training for the select few who are admitted. Courses include academics as well as physical, technological, weapons and psychological training. Biomodification and nanoenhancement is often offered to students. They are then hired by corporations to perform their deeds (eg: political assassination, infiltration of opposition buildings etc).
ApostleCorp has a number of bases including facilities in Seattle, Chicago, Trier, and Cairo. Tracer Tong is head of the Trier facility beneath the Black Gate, while the Cairo facility in the Cairo Arcology is headed up by Paul Denton. Leila Nasif and Stan Carnegie are in charge of the Seattle facility in the WTO enclave, and the Chicago facility which is destroyed during the games opening cinematic, respectively. A cell within Mako Ballistics is also led by Stan Carnegie.
ApostleCorp has made many breakthroughs in nanotechnology prompting action by the Illuminati, fearing universal biomodification would lead to perfect slavery, and the reincarnated Knights Templar, fearing the pollution of the human genome. The Knights Templar destroy the Chicago facility along with most of the city. The Order raids the Seattle facility freeing its trainees: Billie Adams, Klara Sparks, Leo Jankowski, as well as the player character, Alex D. The base in Cairo is attacked by the Knights Templar, capturing the cryogenically frozen body of Paul Denton. The Knights Templar also assault the Trier facility in the hope of using the teleporter there to kill JC Denton in Antarctica.
Nearly all staff are either captured or killed by these attacks. The only confirmed surviving ApostleCorp scientists and staff are the Tarsus project leaders Stan Carnegie and Dr. Leila Nassif, Paul Denton (in a coma), JC Denton (who needs special DNA mergence to revive him), and Trier Director Tracer Tong.
By the end of the game the organization is weakened, though, depending on the actions of the player, most of its leaders survive. The player can even help it achieve its goal of universal biomodification and "perfect democracy", a world of everyone of equal ability connected (not assimilated) to the Helios AI.