Combatants' Home Productions

Like with series, sometimes the companies deserve credit too, including the productions that most of the Death Battle comabatants are from (with the exceptions of Justin Bieber ,Rebecca Black and Chuck Norris), and here they are in Death Battle Episode order:

Note: Bold charcaters are victors, Italic characters means they've fought twice, characters with '*' symbols next to their name have won twice and characters two '*' symbols means they have undecided fates (their battle has not been released yet).

Companies
Disney: Boba Fett, Rogue, Luke Skywalker, Thor, Spiderman, Captain America, Deadpool

Nintendo: Samus Aran, Goomba, Koopa Troopa, Yoshi, Mario, Princess Zelda, Princess Peach, Link, Pikachu, Fox McCloud, Luigi, Venusaur, Blastoise, Charizard, Kirby

Capcom: Akuma, Mike Haggar, Zangief, Felicia, Chun-Li, Dr. Albert W. Wily, Blanka, M. Bison, Strider Hiryu, Ryu

Warner Bros: Shang Tsung, Wonder Woman, Harry Potter, Raiden, Batman, Superman,  Shao Kahn, Sektor, Scorpion, Deathstroke

Nickelodeon: Leonardo*, Donatello, Michelangelo, Raphael, Toph Beifong

Microsoft: Zitz, Riptor, Master Chief, Black Orchid, Fulgore

Productions I.G.: Taokaka, Ragna the Bloodedge, Sol Badguy

Sony: Kratos

Image: Spawn

Konami: Bomberman

Namco Bandai: Dig Dug, Isabella "Ivy" Valentine, Nightmare

Shonen Jump: Vegeta, Goku, Majin Buu, Gaara

Sega: Shadow the Hedgehog, Sonic the Hedgehog, Dr. Ivo "Eggman" Robotnik, Metal Sonic, Tails the Fox, Segata Sanshiro

SNK: Mai Shiranui

Hasbro: Starscream, Rainbow Dash, Bucky O' Hare

id Software: Doomguy

Square Enix: Cloud Strife

Mattel: He-Man

Rankin-Bass: Lion-O

Temco: Ryu Hayabusa

20th Century Fox: Terminator

MGM: Robocop

Toho: Godzilla

Kadokawa Pictures: Gamera

Saban: Tigerzord

Sunrise, Inc.: Gundam Epyon

Jets Comics: Guts

Trivia

 * Nintendo currently holds 3 Death battle records. For having the most victors (7), the most losers (8) and for having the largest number of combatants (15).
 * Disney also has the second most victors (5), those being (Rogue, Luke SkyWalker, Thor, Spider-Man, and Deadpool).
 * Warner Bros also has the second most losers after Nintendo (7), (if you count Batman's loss to Spider-Man).
 * Capcom and Warner Bros. tie for having the second most combatants with 10 different combatants each (Akuma, Mike Haggar, Zangief, Felicia, Chun-Li, Dr. Albert W. Wily, Blanka, M. Bison, Strider, and Ryu Hoshi for Capcom; Shang Tsung, Wonder Woman, Harry Potter, Raiden, Batman, Superman, Shao Kahn, Secktor, Scorpion, and Deathstroke for Warner Bros.).
 * So far, no Nintendo-owned combatant has been able to win against a Sega-owned opponent respectfully, having lost twice in a row.
 * No Warner Bros-owned combatant was able to win against a Disney-owned opponent,  having lost four times in a row, until Batman vs. Captain America.