This is a list of known organizations operating in Darker than Black.
- CIA - The CIA is an organization based in the USA, specializing in espionage and intelligence.
- Chinese Intelligence - The intelligence agency of China responds to Xi-Qi's offer to sell Yin. They make use of Contractors and attack helicopters.
- Evening Primrose - an organization founded by Amber to reveal the existence of Contractors to the public and to prevent the Syndicate from destroying Contractors.
- Fraternal Order of the Holy Gate - a religious order devoted to the worship of Hell's Gate.
- French Department Of National Security - the French state intelligence agency.
- Gai Kurusawa Detective Agency - a small private detective agency run by a former Japanese police detective.
- Japanese Police - The Japanese Police is the main organization Japan uses to fight against Contractors.
- Meyer & Hilton - A powerful private company that experimented on Contractors.
- MI-6 - MI-6 is the British state intelligence agency which supplies the British Government with foreign intelligence.
- Ministry of Internal Affairs and Communication (Section 3) - MIAC oversees the black ops division Section 3, which aims to eradicate all traces of the Syndicate.
- National Astronomical Observatory of Japan - A government run organization specializing in information about Contractors, including tracking their activity.
- Orchester - This is an organization that experimented on Contractors.
- PANDORA - Pandora (Physicalquantity Alternation Natural Deconstruction Organized Research Agency) is a research facility dedicated to studying the phenomena of Hell's Gate.
- Qing Long Tang Mafia - Criminal underworld empire run by Qing Long Tang.
- Russian Intelligence Agency - the Russian state agency responsible for intelligence activities.
- Syndicate - a shadowy organization that ultimately intends to destroy all Contractors.
- United Nations - The UN is a vast intergovernmental organization established in 1945 to promote international co-operation and peace.
- Wiegenlied - An organization founded by Klang to tackle Orchester.
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| v · e | Organizations | |
| Active Organizations: | CIA • French Department Of National Security • Kurusawa Detective Agency • Meyer & Hilton • MI-6 • Public Security Bureau • Russian Intelligence • PANDORA • Section 3 | |
| Status Unknown: | Evening Primrose • Fraternal Order of the Holy Gate • Qing Long Tang Mafia • The Syndicate | |
| Inactive Organizations: | National Astronomical Observatory of Japan | |