Hypnos:

Hypnos' original purpose was to monitor electronic communications of half the Earth for the Japanese government. Because of the legal issues of violating privacy, Hypnos was kept secret from the public. However, Hypnos discovered Digimon (termed "Wild Ones") who entered the real world. As a result, the agency's new objective is to detect Digimon when they Bio-Emerge in the real world and to prevent it if possible. If a Digimon does manage to cross over, Hypnos would try to capture the Wild One and study it. Another function of the agency is to prevent media leaks about Digimon, as well as cover up incidents (such as creating cover stories) that involve Digimon. Apparently Mitsuo Yamaki, the head of Hypnos, had an agenda to eliminate Digimon once and for all.