Nintendo Entertainment Analysis and Development (abbreviated to EAD) is the largest of Nintendo's internal divisions.

In 2004, after corporate restructuring, Nintendo Research and Development teams 1 and 2 were absorbed into EAD, which now comprises at least five teams of twenty to thirty employees. You can usually tell which team developed any given game from it's director. Aside from Shigeru Miyamoto and Takashi Tezuka, each team only works on their own individual title at any given time. It is assumed further unknown teams exist, or are formed temporarily for specific individual projects. There is also a programming group of two-hundred employees within the division known as SRD Co. Ltd.

In the summer of 2014, Nintendo opened a new headquarter in Kyoto and moved all of its internal development teams to that new building, known as the Nintendo Development Center. It houses all of the EAD Kyoto divisions as well as other development divisions.

On September 14 2015, Nintendo announced a large scale restructuring that formalizes the changes set in motion years prior by collecting all Kyoto development in one building. Nintendo EAD and Nintendo SPD have been merged into Nintendo EPD - Entertainment Planning & Development Division lead by General Manager Shinya Takahashi, previously GM of Nintendo SPD with Katsuya Eguchi (EPD Kyoto development) and Yoshiaki Koizumi (EPD Tokyo development) serving as Deputy General Managers.

Structure

Nintendo EAD Kyoto

Deputy General Manager:Katsuya Eguchi

Executive Officer:Takashi Tezuka

EAD Software Group No. 1

Group Manager:Hideki Konno

Luigi's Mansion(2001)
Mario Kart: Double Dash!!(2003)
Nintendogs(2005)
Mario Kart DS(2005)
Mario Kart Wii(2008)
Nintendogs + Cats(2011)
Mario Kart 7(2011)
Mario Kart 8(2014)

EAD Software Group No. 2

Group Manager:Hisashi Nogami

Animal Crossing(2002)
Animal Crossing: Wild World(2005)
Star Fox Command(2006)
Wii Sports(2006)
Wii Play(2006)
Wii Music(2008)
Animal Crossing: City Folk(2008)
Wii Sports Resort(2009)
Animal Crossing: New Leaf(2012)
Nintendo Land(2012)

EAD Software Group No. 3

Group Manager:Eiji Aonuma

The Legend of Zelda: Majora's Mask(2000)
The Legend of Zelda: The Wind Waker(2003)
The Legend of Zelda: Four Swords Adventure(2004)
The Legend of Zelda: Twilight Princess(2006)
The Legend of Zelda: Phantom Hourglass(2007)
Link's Crossbow Training(2007)
The Legend of Zelda: Spirit Tracks(2009)
The Legend of Zelda: Skyward Sword(2011)
The Legend of Zelda: The Wind Waker HD (2013)
The Legend of Zelda: A Link Between Worlds (2013)

EAD Software Group No. 4

Group Manager:Hiroyuki Kimura

Super Mario Advance(2001)
Super Mario World: Super Mario Advance 2(2002)
Yoshi's Island: Super Mario Advance 3(2002)
Super Mario Bros. 3: Super Mario Advance 4(2003)
Super Mario 64 DS(2004)
Yoshi Touch N' Go(2005)
Big Brain Academy(2005)
New Super Mario Bros. (2006)
Big Brain Academy: Wii Degree(2007)
New Play Control! Pikmin(2008)
New Play Control! Pikmin 2(2009)
New Super Mario Bros. Wii(2009)
New Super Mario Bros. 2(2012)
New Super Mario Bros. U(2012)
Pikmin 3(2013)

EAD Software Group No. 5

Group Manager:Tadashi Sugiyama

Wii Fit(2007)
Wii Fit Plus(2009)
Steel Diver(2011)
Star Fox 64 3D(2011)
Wii Fit U(2013)

Nintendo EAD Tokyo

General Manager:Yoshiaki Koizumi

EAD Software Group Tokyo No. 1

Group Manager:Takao Shimizu

Super Mario Sunshine(2002)
Donkey Kong Jungle Beat(2004)
Super Mario Galaxy(2007)
Jibun de Tsukuru Nintendo DS Guide(2010)
The Legend of Zelda: Ocarina of Time 3D(2011)
The Legend of Zelda: Four Swords Anniversary Edition(2011)
Nintendo 3DS Guide: Louvre (2013)
The Legend of Zelda: Majora's Mask 3D (2015)

EAD Software Group Tokyo No. 2

Group Manager:Koichi Hayashida

Flipnote Studio(2008)
New Play Control!: Donkey Kong Jungle Beat(2008)
Super Mario Galaxy 2(2010)
Super Mario 3D Land(2011)
Flipnote Studio 3D (2013)
Super Mario 3D World (2013)
NES Remix (2013)
NES Remix 2 (2014)
Ultimate NES Remix (2014)
Captain Toad: Treasure Tracker (2014)