Production Companies
- Children's Television Workshop (CTW) (1969-2000)
- Curious Pictures (segment: Elmo's World)
- Sesame Workshop (2001-)
Distributors
- National Educational Television (NET) (1969-1970) (USA) (TV)
- Public Broadcasting Service (PBS) (1970-) (USA) (TV)
- Home Box Office (HBO) (2016-) (USA) (TV)
- Arbeitsgemeinschaft der öffentlich-rechtlichen Rundfunkanstalten der Bundesrepublik Deutschland (ARD) (1973-) (Germany) (TV)
- Cartoonito (2016) (UK) (TV)
- Channel 4 Television Corporation (1983-) (UK) (TV)
- D Çocuk (2006) (Turkey) (TV)
- Genius Products (2007-2009) (USA) (video)
- NHK (1973-2004) (Japan) (TV)
- PBS Kids Sprout (2004-2015) (USA) (TV)
- Random House Home Video (1986) (USA) (video)
- Sony BMG Music Entertainment (2004-2007) (USA) (video)
- Sony Music Entertainment (1994-2004) (USA) (video)
- Sony Wonder (1994-2007) (USA) (video)
- TVO (1969) (Canada) (TV)
- Treehouse TV (1997) (Canada) (TV)
- Turkish Radio & Television (TRT) (Turkey) (TV)
- Vivendi Entertainment (2009) (USA) (video)
- Warner Bros. Family Entertainment (2010-) (USA) (DVD)
- Warner Home Video (2010-) (USA) (video)
Other Companies
- Beaches Family Resorts (sponsoring)
- Buzzco Associates (animation sequences)
- Carnegie Corporation of New York (funding)
- Cartoon Pizza (animation sequences)
- Cherokee Studios (music recorded at)
- Compact Video Systems Inc. (remote and video facilities by)
- Corporation for Public Broadcasting (CPB) (funding)
- Discovery Zone (sponsoring)
- Earth's Best Organic (sponsoring)
- Everydaykidz.com (funding)
- Filmation Associates (animation sequences)
- Ford Foundation, The (funding)
- Hubley Studios (animation) (specific segments)
- Jim Henson's Creature Shop (puppets, costumes, props) (2004-)
- Jim Henson's Muppet Workshop (puppets, costumes, props) (1969-2004)
- Kaufman Astoria Studios (taping location)
- Klasky-Csupo (animation sequences)
- Korty Films (animation sequences)
- Kurtz and Friends (animation sequences)
- Looksmart Ltd. (sponsoring)
- Markle Foundation, The (funding)
- McDonald's Corporation (sponsoring)
- Michael Sporn Animation (animation sequences)
- Muppets Studio, The (trademark of: "Muppets") (2007-) (as The Muppets Studio)
- National Film Board of Canada (NFB) (animation sequences)
- PNC (sponsoring)
- Pfizer (sponsoring)
- Pixar Animation Studios (animation sequences)
- Procter & Gamble (funding) (Pampers baby products)
- Public Television Stations (funding)
- Rebo Associates (location services)
- Reeves Teletape (taping location)
- Stretch Films (animation sequences)
- Studio B (animation sequences)
- TFC Trickompany Filmproduktion (animation sequences) (1990)
- Teletape's 81st. Street Studio (taping location)
- ToySmart.com (sponsoring)
- U.S. Office of Education, Department of Health, Education and Welfare (funding)
- United States Agency for International Development (USAID) (funding)
- Unitel Video (production facilities)
- Viewers Like You (funding)
- Wantu Studios (animation) (specific segments)
- Warner Bros. Animation (segment: "Yakety Yak - Take it Back") (1991)
- Will Vinton Studios (animation sequences)
- Yellow Sound Lab (special thanks)
