Tribune Content Agency ( TCA) is a syndication company owned by Tribune Publishing. TCA had previously been known as the Chicago Tribune Syndicate, the Chicago Tribune New York News Syndicate ( CTNYNS), Tribune Company Syndicate, and Tribune Media Services. TCA is headquartered in Chicago, and had offices in various American cities (Milwaukee, Wisconsin; Queensbury, New York; Arlington, Texas; Santa Monica, California), the United Kingdom, the Netherlands, and Hong Kong.
Sidney Smith 's early comic strip had a key role in the rise of The Gumps syndication when Robert R. McCormick and Joseph Medill Patterson, who had both been publishing the since 1914, planned to launch a tabloid in New York, as comics historian Chicago Tribune Coulton Waugh explained:
So originated on June 16, 1919, the
Illustrated Daily News, a title which, as too English, was almost at once clipped to . It was a picture paper, and it was a perfect setting for the newly developed art of the comic strip. The first issue shows but a single strip, (New York) Daily News The Gumps. It was the almost instant popularity of this famous strip that directly brought national syndication into being. Midwestern and other papers began writing to the Chicago Tribune, which also published The Gumps, requesting to be allowed to use the new comic, and the result was that the heads of the two papers collaborated and founded the . . . syndicate, which soon was distributing Tribune-News features to every nook and cranny of the country. 
Patterson founded the
Chicago Tribune Syndicate in 1918, managed by Arthur Crawford.
In 1933, Patterson (who was then based in New York and running the
Daily News), launched the  Chicago Tribune-Daily News Syndicate, Inc. (also known as the Chicago Tribune-New York News Syndicate and the Tribune-New York (Daily) News Syndicate). 
An April 1933 article in
described the "Big Four" American syndicates as Fortune United Feature Syndicate, King Features Syndicate, the Chicago Tribune Syndicate, and the Bell-McClure Syndicate.  Mollie Slott kept the syndicate running in its mid-century glory days.
In 1968, the syndicate offered about 150 features to approximately 1400 client newspapers.
 Tribune Publishing acquired the Times Mirror Company in 2000, with the Los Angeles Times Syndicate being merged into Tribune Media Services.
The McClatchy Company inherited a partnership with the Tribune Company, in the news service Knight Ridder-Tribune Information Services, when it acquired Knight Ridder; the new service was called the  McClatchy-Tribune News Service (MCT). In 2014, Tribune bought out McClatchy's share of the company, taking full ownership of MCT and moving its headquarters to Chicago. 
On June 25, 2013, the newspaper syndication News & Features division of Tribune Media Services became the
Tribune Content Agency.
On June 12, 2014, Tribune Media Services was merged into
Gracenote. After the 2014 split of Tribune Company assets between  Tribune Media and Tribune Publishing, Gracenote went to Tribune Media (who would sell it to Nielsen Holdings in 2016) while Tribune Content Agency content remained with Tribune Publishing.
On September 22, 2014, the McClatchy-Tribune News Service (MCT) was renamed the
Tribune News Service (TNS).
Products and Services
media products, such as news, columns, comic strips, Jumble and crosswords, printed insert books, video, and other information services to publications across the United States, Canada, and other countries in English and Spanish for both  print and web syndication.
Tribune Premium Content is a subscription service for newspapers and other media channels. The content provided includes comics, puzzles, games, editorial cartoons, as well as feature content packages. Tribune Premium Content also syndicates content from other sources, such as The Atlantic, Rolling Stone, Kiplinger, Harvard Health and Mayo Clinic.
TCA's news service,
Tribune News Service, offers breaking news, lifestyle and entertainment stories, sports and business articles, commentary, photos, graphics and illustrations.
 Tribune SmartContent is an information service filtered to provide targeted content. Full-text news feeds deliver articles from 600 sources from around the world.
TCA also offered products and services for niche markets via TCA Specialty Products.
TCA has, worldwide, 600-plus contributors and serves more than 1,200 clients, services and resellers.
Wayne Lown, General Manager
Rick DeChantal, Sales Director
Pia Ingberg, Director, European Operations
Mustafa Sharaan, Director of International Business Development
Jack Barry, VP/Operations (and Acquisitions Editor)
Zach Finken, Associate Editor
Matt Maldre, Marketing Manager
Strips as of 2021
by The Adventures of Smilin' Jack Zack Mosley (1933-1973)
by Aggie Mack / Aggie Hal Rasmusson and Roy L. Fox (1946-1972)
by Beyond Mars Jack Williamson & Lee Elias (February 17, 1952 - May 13, 1955)
by Bobby Make-Believe Frank King (1915-1919)
originally by Brenda Starr, Reporter Dale Messick (1940-2011)
originally by Ching Chow Sidney Smith and Stanley Link (1927-1990)
Closer Than We Think by Arthur Radebaugh (January 12, 1958-January 6, 1963) -- Sunday panel 
by Compu-toon Charles Boyce (1994-1997; moved to Universal Uclick)
by Conrad Bill Schorr (1982-1986)
Deathless Deer by Alicia Patterson and Neysa McMein (1942-1943)  
by Dondi Gus Edson and Irwin Hasen (1955-1986)
by Jim Lawrence and later Friday Foster Jorge Longarón (1970-1974)
by The Gumps Sidney Smith (1917-1959)
by Harold Teen Carl Ed (1919-1959)
by Peter Zale (5 June 2000 - 25 December 2005) Helen, Sweetheart of the Internet
by In the Bleachers Steve Moore (1985-1995; moved to Universal Press Syndicate) 
Kennesaw by Reamer Keller (1953-1955)
by Li'l Abner Al Capp (1964-1977) -- moved over from United Feature Syndicate 
originally by Ed Leffingwell (October 1, 1933-1972) Little Joe 
(June 5, 1950 - May 1969) by Woody Kimbrell (1950-1964), Roger Armstrong (1964-1966), and Ed Nofziger (1966-1969) Little Lulu
by Little Orphan Annie Harold Gray and others (1924-2010)
by Todd Clark (1999-2005; moved to Lola United Feature Syndicate) 
Lolly (later changed to Lolly and Pepper) by Pete Hansen (1955-1983) 
Louie by Harry Hanan (1947-1976) 
by Mary Perkins, On Stage Leonard Starr (February 1957 - September 9, 1979)
by Moon Mullins Frank Willard & Ferd Johnson (1923-1991)
by Mother Goose and Grimm Mike Peters (1984-2002; moved to King Features Syndicate) 
by Motley's Crew Ben Templeton and Tom Forman (1976-2000)
My Son John by Bill Hoest (April 4 1960 - c. April 1962) 
by The Neighbors George Clark (1939-1971)
by Old Doc Yak Sidney Smith (February 5, 1912 - June 22, 1919, December 7, 1930 - February 25, 1934) -- second iteration as a weekly topper strip for The Gumps
by Eric and Bill Teitelbaum (2004-2009) The Pink Panther
Raising Hector by Peter Ramirez (2006-2010) 
by Rick O'Shay Stan Lynde (April 27, 1958 - March 8, 1981)
by Shoe Jeff MacNelly and then others (1977-2008; moved to King Features Syndicate) 
by Smitty Walter Berndt (1922-1973)
by Smokey Stover Bill Holman (1935-1973)
by Spy vs. Spy Duck Edwing and Dave Manak (2002-2014)
by Tales of the Green Beret Robin Moore & Joe Kubert (September 20, 1965 - 1968)
by The Teenie Weenies William Donahey (June 14, 1914 - October 26, 1924; September 24, 1933 - December 2, 1934; May 18, 1941 - February 15, 1970)
(1934-1973) by Terry and the Pirates Milton Caniff (1934-1946) and George Wunder (1946-1973)
Texas Slim by Ferd Johnson (1925-1958) 
by Tiny Tim Stanley Link (July 23, 1933 - March 2, 1958)
Whiteboy (later changed to Whiteboy in Skull Valley and then simply Skull Valley) by Garrett Price (Oct. 8, 1933-Aug. 16, 1936) 
(1920-1996) by Winnie Winkle Martin Branner (1920-1962), Max Van Bibber (1962-1980), and Frank Bolle (1980-1996) by numerous creators (1978-1985) The World's Greatest Superheroes
Columns and articles
Ask Amy by Amy Dickinson
God Squad, The by Marc Gellman
Harvard Health Letters
Interpersonal Edge by Daneen Skube
Mayo Clinic Q & A
Medicine Cabinet, The: Ask the Harvard Experts
My Answer from the writings of the Rev. Billy Graham
My Pet World by Cathy M. Rosenthal
Real Estate Matters by Ilyce R. Glink and Samuel J. Tamkin Right Thing, The by Jeffrey L. Seglin
Business & Personal Finance
Careers Now by Kathleen Furore
Credit Card Chart, The
Global Viewpoint Network by Nathan Gardels
Interpersonal Edge by Daneen Skube
Jill on Money by Jill Schlesinger
Kids & Money by Steve Rosen
Kiplinger Consumer News Service
Kiplinger's Money Power
Markets & Mutual Funds
Money Market Package
Savings Game, The by Elliot Raphaelson
Success featuring Kiplinger, and Inc. Magazine Fast Company Terry Savage
Your Money by Kiplinger
Daily Bridge Club by Frank Stewart
Goren Bridge by Bob Jones Poker by Tony Dunst and Bryan Devonshire
Daily Racing Form's Consensus Latest Line by J. McCarthy
Harvard Health Letters
How to Keep Well by Irving S. Cutter (1935-?)
Mayo Clinic Q & A
Medicine Cabinet, The: Ask the Harvard Experts Premium Health News Service by Various Contributors
Ask the Builder by Tim Carter
Do It Yourself...Or Not? by Gene and Katie Hamilton
Living Space by Kathryn Weber Real Estate Matters by Ilyce R. Glink and Samuel J. Tamkin
24/7 Wall St.
Fresh Toast, The
Linda C. Black Horoscopes by Nancy Black
My Pet World by Cathy M. Rosenthal
Tuesdays with Mitch by Mitch Albom Your Daily Astrology by Magi Helena
Celebrity Travel by Jae-Ha Kim
Ed Perkins on Travel by Ed Perkins
Rick Steves' Europe by Rick Steves Taking the Kids by Eileen Ogintz
Discontinued columns and columnists
Beauty Answers by Antoinette Donnelly (1919-c. 1946)
Doris Blake: Love Problems, Heart Chats, and Heart to Heart Talks (1921-1946) Nancy Dorris: cooking (1930s)
W. A. Evans, M.D.: health column (1919-1933)
Little Old New York, by Ed Sullivan (1935-1940s)
Clare Boothe Luce: national political convention coverage) (1940s)
Mainly About Manhattan by John Chapman (1933-1946)
Parent-Child by Gladys Bevans (1927--c. 1946) Danton Walker, column on
Broadway theatre (1939-1940s) The Smart Collector by Danielle Arnet (?-2019)
Games & Puzzles
Daily Commuter Puzzle, The by Jackie Mathews
by Jumble Crosswords David L. Hoyt
Los Angeles Times Crossword Puzzle by Joyce Nichols Lewis and Rich Norris
Quote-Acrostic TV Crossword, The by Jackie Mathews
Boggle BrainBusters by David L. Hoyt and Jeff Knurek
Word Salsa by Tony Tallarico Word Wheel
Brainbusters: The Ultimate Puzzle Book
Envelope's Oscar Preview, The
Family Health Guide from Harvard Health Publications
Guide to Entertaining: Be the Best Holiday Host This Year
Guide to Fitness from Harvard Health Publications
Guide to Investment from Morningstar
Guide to Retirement from Morningstar
Guide to Summer Entertaining
International Travel Guide
Life Skills: How to do almost anything
Mayo Clinic Guide to Healthy Eating
Pet Power Travel Guide U.S.A.
Waugh, Coulton. The Comics, 1947.
^ a b Watson, Elmo Scott.
"The Era of Consolidation, 1890-1920" (Chapter VII), in A History Of Newspaper Syndicates In The United States, 1865-1935 (Western Newspaper Union, 1936), archived at Stripper's Guide
"Tribune Company History". Funding Universe . Retrieved .
"International Directory of Company Histories". 63. St. James Press. 2004.
Jeet Heer, "Crane's Great Gamble", in Roy Crane, Buz Sawyer: 1, The War in the Pacific. Seattle, Wash.: Fantagraphics Books, 2011. ISBN 9781606993620
^ Maley, Don. "Super Roads to Riches are Paved with Comics,"
Editor & Publisher (Nov. 30, 1968). Archived at . Accessed Nov. 12, 2018. Stripper's Guide
Seelye, Katharine Q.; Andrew Ross Sorkin (2006-03-12). "Knight Ridder Newspaper Chain Agrees to Sale" (Fee). . The New York Times
Publishing, Tribune (May 8, 2014). "Tribune Publishing Family Of Companies Takes Full Ownership Of MCT Information Services". www.prnewswire.com . Retrieved 2018.
Beaujon, Andrew (May 8, 2014). "Tribune buys out McClatchy's stake in MCT newswire". Poynter . Retrieved 2017.
"Tribune Media Services News & Features Becomes Tribune Content Agency". Tribune Content Agency. 25 June 2013 . Retrieved 2018.
"Tribune to merge Media Services into Gracenote operations | Social TV | News". Rapidtvnews.com. 2014-06-12 . Retrieved .
"en Español - Tribune Content Agency". Tribune Content Agency . Retrieved 2018.
"Tribune Premium Content". Tribune Content Agency.
"Tribune News Service". Tribune Content Agency.
"Tribune SmartContent". Tribune Content Agency.
"Content on Demand for Special Sections and Niche Publications". TMS Specialty Products . Retrieved .
"FAQ: What is MCT". Mctdirect.com . Retrieved .
^ Holtz, Allan.
"Obscurity of the Day: Closer Than We Think," Stripper's Guide (Sunday, May 21, 2006).
Trina Robbins and Catherine Yronwode, Women and the Comics. Eclipse Books, Canada, 1985. ISBN 9780913035023. (pp. 41-2)
Markstein, Don. "Deathless Deer". Don Markstein's Toonopedia . Retrieved 2020.
"Steve Moore (In the Bleachers): by GoComics," GoComics (March 13, 2015).
^ Harvey, R.C.
"REVIEWS: Al Capp: A Life to the Contrary," The Comics Journal (MAR 14, 2013).
at Little Joe Don Markstein's Toonopedia, Archived from the original on September 3, 2015.
^ E&P Staff
"'Lola' Comic Moves to United Today," Editor & Publisher (May 9, 2005).
^ Roy Paul Nelson,
Cartooning. Chicago : Contemporary Books, 1975. ISBN 0809282127 (p. 44)
^ Stephen D. Becker, Comic Art in America. New York : Simon and Schuster, 1959 (p. 271)
^ Astor, Dave.
"Mike Peters Moves To King," Editor & Publisher (November 27, 2002).
^ Holtz, Allan.
"Obscurity of the Day: My Son John," Stripper's Guide (February 19, 2018).
Ramirez entry, Lambiek's Comiclopedia. Accessed Dec. 10, 2018.
^ Press release.
"King Features to Syndicate Shoe Comic Strip: Distribution of Popular Feature Begins September 1, 2008," Business Wire (August 2008).
at Texas Slim Don Markstein's Toonopedia. Archived from the original on December 26 2018.
^ Markstein, Don.
"Whiteboy," Toonpedia. Accessed Oct. 26, 2018.