K-C was started in an apartment bedroom in 1981 by Arlene Klasky and Gabor Csupo. Csupo had made other animations before that.
In 1991, K-C pitched Rugrats to Nickelodeon, which was a hit, and later, they showed Nick Rocket Power, Aaahh!!! Real Monsters, As Told By Ginger, The Wild Thornberrys, and others
In 1995, Klasky and Csupo filed for divorce, but still maintained a healthy friendship
In 2006, Their building was left vacant until 2012
In 2011, K-C's kachew! division was under deep jeopardy and they sold one of their pilots: Chicken Town, to Ellipseanime
In 2012, Arlene Klasky and Gabor Csupo ressurected the company with a Facebook page, a YouTube channel, and a newly-styled logo. They had two pilots in the works — Ollie Mongo, which is about a blue zombie living like a teen through the apocalypse, and Splaat!, a pilot featuring the Super Scary Splaat Face from the 1998 Robot Logo living as a 16-year-old Urban Philosopher who lives on the Internet.
1991 — "Graffiti"
Over a white BG, various stuff forms "K"L""a""S'"K""Y and "CSUPO" scribbles in blue Helvetica font. The logo turns black and white while the background keeps moving and the Y at the end of Klasky turns purple
1998 — "Super Scary Face"/"The SSSF"/"Robot"/"Splaat!"
This is the most popular and more common logo. Over a static purple background, a black ink blot forms to soon be followed by blue ink. A hand passes through with magazine clippings in it. The face says the company name in a roboitcized voice and starts vomiting Logo Blocks, which cover both the background and the face. The Y in Klasky turns purple and the logo goes away
2003 — "Crazy Rooster"
This is an uncommon logo which debuted during Rugrats Go Wild. Over a green city skyline, a sun comes up revealing a rooster on the top. The rooster says "WAAAAAKE UUP!!!!!!!!!" while logo blocks go across the city. The logo (which looks grungier than before and is the currently used logo) forms and we hear "KLASKY CSUPO" in a roboticized voice