- Professional Organizations
- A.I.M.
- Advanced Idea Mechanics, criminal scientists.
- AAGLNYCPA
- African American Gay and Lesbian New York City Policeman's Association. The support organization that the captain created. (Season 1 episode Full Boyle)
- Academy of Inventors
- Group of super intelligent scientists that show their inventions at the Academy of Inventors Annual Symposium.
- Alderaan Trade Alliance
- Luthen's fake transponder ID identifies his shop the Fondor as a ship registered with the Alderaan Trade Alliance. (Season 1 episode Daughter of Ferrix)
- The Alliance of Magicians
- G.O.B.'s magician group (Season 1)
- Allied Scientific Coalition of Time Travelers
- Also known as ASCOTT. They're what you might call the leadership of the time travel community.
- Amalgamated Planet-Dwellers of the Galaxy
- Amalgamated Transport and Shipping Union
- (Season 1 episode The Politics of Time)
- Amalgamated Union of Philosophers, Sages, Luminaries and Other Professional Thinking Persons
- Also known as AUPSLOTP. Represented by Majikthise, protesting Deep Thought, the computer which is being asked to determine the Answer to the Ultimate Question of Life, the Universe and Everything. Majikthise: "We are quite definitely here as representatives of the Amalgamated Union of Philosophers, Sages, Luminaries and Other Thinking Persons, and we want this machine off, and we want it off now!"
- The Amalgamated Union of Philosophers
- American Applesauce Association
- Card in the family car that Marge thought was Homer's auto service card. (Season 18 episode You Kent Always Say What You Want)
- American Association of Cosmetic Surgeons
- Organization whose website gets replaced with a calliagnosia site. (Story: Liking What You See)
- American Carny Association
- Group that endorses the Kitchen Carnival, a machine that makes carnival food at home. Marge's sisters Patty and Selma won on on the Price is Right. (Season 15 episode The Fat and the Furriest)
- American Federation of Variety Artists
- Organization Deckard tells Zhora he's with, specifically the "Confidential Committee of Moral Abuses" division.
- American Future Capitalists
- American Hypnotical Association
- Organization that Mr. Burns threatens to contact when a hypnotist turns Roger Clemens into a chicken. (Season 3 episode Homer at the Bat)
- The American Laundry Federation
- When ALF calls the president, the operator researches "A-L-F", coming up with several fictional organizations, including The American Laundry Federation, The Association of Lawn Fertilizers and Alabama Lunatic Fringe (Season 1 episode Pennsylvania 6-5000)
- American Pa-lease Association
- Joke Charlie makes when Reno Ventura from the American Psychological Association knocks on his door, because he thinks it's just another anger shill sent by Jordan. (episode Charlie and the Temper of Doom)
- American Technological Business Counsel
- The Ancient Mystic Society of No Homers
- When the rest of the members of the Stonecutters get tired of Homer being their leader, they create a new secret society. (Season 6 episode Homer the Great)
- The Ankh-Morpork Assassins' Guild
- Guild for professional killers in Ankh-Morpork.
- Anti-Villain League
- Abbreviated AVL. Married Anti-Villain League agents Gru and Lucy Wilde are sent to stop Balthazar Bratt - a former child actor turned supervillain after his TV show "Evil Bratt" was canceled when he reached puberty - from stealing the Dumont diamond.
- Archaeology Collective
- Organization website featuring a photo of Dr. Arthur M. Jenkins.

- The Assassins Guild
- He turned down a side street, walked by several restaurants, and came to a large building called the poison institute - "Easy Terms. Up to 3 Years to Pay. Satisfaction Guaranteed or Your Money Back". Next door to it was the assassin's guild, Local 452.
- Assassin's Guild of the Thenta Makur
- G'kar receives a message from a dying enemy stating that he will be killed by somebody close to him during the next two days. His new aide Na'Toth points out that if Du'Rog had been serious about killing him, he would have gone to the Assassin's Guild of the Thenta Makur, whose trademark is to leave a black flower near to one of their impending victims so they will know to get their affairs in order. (Season 1 episode The Parliament of Dreams)
- Association of Aviation Technology
- Professional organization staying at the Coronet Hotel where Finch and Reese are working undercover, keeping an eye on machine number and housekeeper Mira Dobrica. (Season 2 episode Booked Solid)
- The Association of Lawn Fertilizers
- When ALF calls the president, the operator researches "A-L-F", coming up with several fictional organizations, including The American Laundry Federation, The Association of Lawn Fertilizers and Alabama Lunatic Fringe (Season 1 episode Pennsylvania 6-5000)
- The Association of Newsroom Cue Card Holders
- Group that joins Lisa's strike at Springfield Elementary School. (Season 15 episode The President Wore Pearls)
- Association of Reaction Monitors
- Group picketing the Sisken Establishment. (Chapter 2)
- The Association of the Brooklyn Public Defenders
- Jake's girlfriend's public defender organization. Jake calls it the Chamber of Asses. But then he says, Wait that's too sexy - the chamber of snakes! (Season 2 episode Defense Rests)
- Atlantis Guild
- Abed recognizes one of the annoying German bullies from the video game SpawnCraft. Abed: Doktor Blitz, knight of the Atlantis Guild, wielder of the four-pronged trident on SpawnCraft? (Season 4 episode Alternative History of the German Invasion)
- Attica Physics Club
- Joke Fargo makes about going to prison. Fargo: "I'm gonna spend the rest of my life President of the Attica Physics club!" (Season 3 episode Ship Happens)
- B.U.B.B.A.
- Bull's bailiff club. Benevolent Union of Bald Bailiffs of America. (Season 5 episode Chrizzi's Honor)
- The Beef Council
- Duckman version of the National Cattlemen's Beef Association (Season 1 episode I, Duckman)
- Bondsmen Guild
- Bounty hunter association, Mando and IG-11 are both members. (Season 1 episode Chapter 1 The Mandalorian)
- Boston League of Businesswomen
- Group Rebecca wants to join (Season 11 episode Bar Wars VII: The Naked Prey)
- British Rocket Society
- Also known as B.R.S., Group involved in multiple celebrated court cases such as "Rox v. British Rocket Society” and "British Rocket Society v. Rex”, together causing a tremendous awakening of public interest in the science of rocketry.
- Broadcasters Society
- Mr. James asks Dave to introduce Bill for his speech at the Broadcasting Society dinner. (Season 2 episode In Through the Out Door)
- Brooklyn Periodontics Society
- Peralta accuses dentist Philip Davidson of using a Brooklyn Periodontics Society award as the murder weapon in the murder of his partner. (Season 5 episode The Box)
- Brotherhood of Fruit Packers and Unpackers
- The bag boys at CostMo Foods grocery store - members of Sack stuffers Local 199 - go on strike. Pledging to honor the bag boys strike are the Brotherhood of Fruit Packers and Unpackers, The Shelf Dusters Union, and The Unattractive Waitresses of America. (Season 12 episode Simpson Safari)
- Brotherhood of Petrol Workers
- Union on the oil company world. (Season 3 episode The Fire Within)
- The Bureau of Collection and Investigative Services
- Gus Klein's private investigator license on the wall in his office, issued February 15, 1965, valid until June 30, 1991.

- California Investigators Association
- Maddie and David send Miss DiPesto to the California Investigators Association Annual Banquet and Ball in their place to help her get out of her new year's rut. (Season 2 episode North by North DiPesto)

- Canadian Mollusk Association
- Doug Forcett decides to make a donation after killing a snail (Season 3 episode Don't Let the Good Life Pass You By)
- Canine Global Kennel Club Inc.
- While Velma clicks through an internet search on Dick Dastardly, she looks at canine adoptions.
- The Cattle Ranchers of America
- "You can't beat our meat"
- Cavern Club
- Swamp dragon breeder's association.
- Colgate Cavity Patrol
- The grifter that grifts Bart and Homer has a badge, which he claims is an FBI badge, but turns out to be from the Colgate Cavity Patrol. (Season 12 episode The Great Money Caper)
- Colonial Workers Alliance
- The union that Chief starts on New Caprica during the Cylon occupation, which with President Roslin's encouragement, starts up again following the evacuation. (Season 3)
- Commerce Guild
- Trade conglomerate that controls the planet Mooga, and therefore the tea that's making the school children sick on Mandalore. (Season 3 episode Corruption)
- The Commercial Council of Magrathea
- Message the crew receives upon finally arriving at Magrathea, shortly before thermonuclear missiles are launched at them: "The Commercial Council of Magrathea thanks you for your visit, but regrets that the entire planetis temporarily closed. If you'd like to leave your name and a planet where you can be contacted, kindly do so at the tone."
- The Committee to Plan Parties
- New committee that Pam and Karen create in order to plan the Margarita-Karaoke-Christmas party, in opposition to the Party Planning Committee's Nutcracker Christmas party. (Season 3 episode A Benihana Christmas)
- The Council of Legendary Figures
- Council that includes Cupid, Mother Earth, Father Time, the Easter Bunny and the Tooth Fairy.
- Council of Logic and Data
- Martin Heiss was the chairman of the Council of Logic and Data and a well known debunker of all things supernatural.
- The Creative Institute of Architects (CIA)
- Professional organization that asks Mike to deliver a speech he'd previously given at a business meeting. (Season 1 episode Father of the Year)
- Dental Association
- Jerry takes Bob to his Dental Association luncheon. (Season 2 episode The Last TV Show)
- The Downwind Thieves' Guild
- East Side Theater Guild
- Mrs. Van Hoffman is hosting a midnight buffet for the East Side Theater Guild at the Sedgewick Hotel the night that Slimer appears on the 12th floor and the Ghostbusters are called.
- Empire State Lawyers
- Attended Pressman Hotel for their Christmas party. Narrator got his hard and stuck it in all their orange mousses.
- European Optometry Society
- What happens in 1968 will rule the fare of European optometrists for at least 50 years! Billy read. With this warning, Jean Thiriart, Secretary of the National Union of Belgium Opticians, is pressing for formation of a 'European Optometry Society.' The alternatives, he says, will be the obtaining of Professional status, or, by 1971, reduction to the role of spectacle-sellers. Billy Pilgrim tried hard to care.
- Everywhere
- Hacker group Brian mentions in multiple episodes.
- Website where Brian Finch researches a way to hack a robotic arm with other "code jockeys".
- Fall Guy Stunt Association
- Federation Medical Council
- The Federation Medical Council nominates Bashir for this year's Carrington Award, along with Dr. April Ward of the University of Nairobi, Healer Senva of the Vulcan Medical Institute, Dr. Henri Roget of the Central Hospital of Altair IV and Chirurgeon Ghee P'Trell of Andoria. (Season 3 episode Prophet Motive)
- Federation of Feminist Women's Health Centers
- Organization listed on the tenant sign in the foyer of the Martin-Victor building.
- The Federation of Trade Route Allocation and Monetization
- Upon arrival at the mining colony, Qu'ra claims to be Oksana Floren, Deputy Assistant Administrator to the Vice-Admiral of the Federation of Trade Route Allocation and Monetization, there with an offer from the Senior Vice-Admiral.
- Film Actors Guild
- Parody of Screen Actors Guild. Abbreviated F.A.G. A union of liberal Hollywood actors led by Alec Baldwin.
- FIMBa (Fraternal International Monster Breeders Association)
- Future Enterprisers
- The young businessmen's group that Joel belonged to. He was required to come up with a product and market it. He came up with the Memo Minder.
- Future Magicians of America
- Future Nurses of America
- Organization that Lauren mentions while attempting to save Jennifer from choking. (Season 1 episode The Arrangement)
- Future Veterans of Foreign Wars
- After Bart and Milhouse destroy Ned Flanders' secret Beatles memorabilia room, Marge searches for supervised activities they can all do together. (Season 14 episode The Bart of War)
- Games Commission
- Organization that oversees the Network's games.
- Gay Dog Alliance
- Organization featured in Springfield's gay pride parade. (Season 13 episode Jaws Wired Shut)
- Gay Steel Workers of America
- Organization featured in Springfield's gay pride parade. (Season 13 episode Jaws Wired Shut)
- German Association of Prison Officials
- He was apologetic about the Englishmen's having to put up with the American enlisted men. He promised them that they would not be inconvenienced for more than a day or two, that the Americans would soon be shipped to Dresden as contract labor. He had a monograph with him, published by the German Association of Prison Officials. It was a report on the behavior in Germany of American enlisted men as prisoners of war. It was written by a former American who had risen high in the German Ministry of Propaganda. His name was Howard W. Campbell, Jr. He would later hang himself while awaiting trial as a war criminal. So it goes.
- The Guild of Restaurant and Casino Employees
- Rom and his fellow employees form a union to stand up for themselves and fight for their rights. (Season 4 episode Bar Association)
- The Guilds of Ankh-Morpork
- Haggershaven
- Community of scholars and scientists.
- Hammond Association of Business & Industry
- Sponsor of congressional debate between Cam Brady and Marty Huggins.

- Hickleborough Rocket Association
- Group that dropped a large rocket from an aero plane, labeled "Property of the USSR”, as part of a publicity stunt.
- Hollywoo Guild of Assistants
- HGA. Assistants in Hollywoo form a guild and go on strike. (Season 6 episode The Kidney Stays in the Picture)
- Holy Network of Administrative Assistants
- Organization Gina mentions (Season 2 episode The Wednesday Incident)
- Homicide International Trust
- Also known as HIT. International fraternity of assassins.
- IMa (International Monsters Association)
- Independent Inventors of America
- Reese attends a charity auction for Independent Inventors of America sponsored by social network FriendCzar to keep an eye on machine number and billionaire Logan Pierce. (Season 2 episode One Percent)
- Independent Planetary Operators Association
- Indiana Fine Woodworking Association
- Ron is nominated for an award from the Indiana Fine Woodworking Association. (Season 5 episode Ron and Diane)
- Indiana Notary Society
- In a flash forward, when Garry dies, the Indiana Notary Society gives him their highest honor, the 21 Stamp Salute. (Season 7 episode One Last Ride)
- Industrial Retrofitters Local 238
- Union Joe mentions when he goes on strike. Joe: "Think I want to be on strike? It's the other union, the Industrial Retrofitters Local 238… Their union and our union are allied, like sister unions. So if they go on strike, I gotta go on strike too.” (Season 4 episode Who's the Boss?)
- Information Workers of the World Wide Web (the Webblies)
- Play on the Industrial Workers of the World.
- International Association of Cardiologists
- New record added 3/29/2023
- Kimble confronts Dr. Nichols while he’s giving a speech in front of the International Association of Cardiologists.
- International Brotherhood of Jazz Dancers, Pastry Chefs and Nuclear Technicians
- Springfield Nuclear Power Plant employees' new union. (Season 4 episode Last Exit to Springfield)
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