I was just wondering who exactly are all the first and second party publishers this generation.

I remember in Gamecube era for Nintendo it was

Nintendo
Silicon Knights
Retro Studios
Rareware (until being sold off to Microsoft)

Nintendo

Current First Party:

Brownie Brown — Software developer consisting of former members of Squaresoft. Responsible for the Magical Vacation (Magical Starsign outside of Japan) series, and for supporting Shigesato Itoi and HAL with Mother 3 (Japan only).

Intelligent Systems — Established in 1986 by former members of Nintendo Research & Development 1 to develop games. Responsible for Metroid, Fire Emblem, Paper Mario, and Nintendo Wars franchises.

NDCUBE — Developer of F-Zero: Maximum Velocity and various other Game Boy Advance and GameCube titles.

Nintendo Entertainment Analysis and Development (Originally "Nintendo Research & Development 4") — Largest division at Nintendo. Managed by Shigeru Miyamoto. Responsible for the Mario, Zelda, Animal Crossing, Wii Series, and other franchises.

Nintendo EAD Tokyo — The first in-house Nintendo studio to be located outside of Kyoto. Responsible for Donkey Kong Jungle Beat and Super Mario Galaxy

Nintendo Software Technology Corporation — Redmond-based studio responsible for Metroid Prime: Hunters and Project H.A.M.M.E.R., among others.

Retro Studios — Austin-based studio wholly owned by Nintendo. Developer of the Metroid Prime games excluding Hunters and Pinball.

Current Second Party:

AlphaDream — Developer of Tomato Adventure (Japan only), Mario & Luigi: Superstar Saga, and Mario & Luigi: Partners in Time.

Ambrella - Developers of Hey You, Pikachu!, Pokémon Channel, and Pokémon Dash.

Camelot Software Planning - Developer of Nintendo's Mario Golf and Mario Tennis series as well as the Golden Sun franchise.

Fuse Games — A British Pinball game company who made Mario Pinball Land and Metroid Prime Pinball.

Game Freak — Developer of the Pokémon video game series and Drill Dozer.

Genius Sonority — Newly formed developer; responsible for Pokémon Colosseum, its sequel, Pokémon XD, and the Pokémon puzzle game: Pokémon Trozei.

HAL Laboratory — Responsible for the Kirby franchise, Super Smash Bros. series, the Eggerland series (also known as the Adventures of Lolo series), the development of the e-Reader, and co-produced the EarthBound/Mother series.

Monolith Soft - Founded in 1999 by a former member of Square Co., the company was sold to Nintendo on 27 April, 2007 by Namco Bandai. Developer of the Xenosaga series, as well as Namco x Capcom, the upcoming Wii title Disaster: Day of Crisis, and the Baten Kaitos series.

Nexon Corporation - An MMO developer that was the creator of Maple Story and War Rock, NEXON recently announced that it has partnered with Nintendo, and will be bringing some of it's MMOs to Nintendo consoles.

Noise - Developers of the Custom Robo franchise.

skip Ltd. - Developers of the Chibi-Robo series, the bit Generations series (Japan only), and GiFTPiA (Japan only).

Incognito Entertainment – Twisted Metal: Black, Warhawk
Naughty Dog – Jak series
SCE Bend Studio (formerly Eidetic) – Syphon Filter series
SCE Foster City Studio (includes 989 Studios) – Rise to Honour
SCE San Diego Studio (includes 989 Sports & Red Zone Interactive) – The Mark of Kri, NBA '07
SCE Santa Monica Studio – God of War, Kinetica
Sony Online Entertainment LLC. – EverQuest
Zipper Interactive – SOCOM: U.S. Navy SEALs series

Guerrilla Games – Killzone series
SCE London Studio (includes Team SOHO & Camden) – The Getaway series, SingStar
SCE Studio Cambridge (formerly Millennium Interactive) – MediEvil series, Primal
SCE Studio Liverpool (formerly Psygnosis) – Wipeout series, F1 series

SCE Korea – EyeToy: EduKids, GloRace: Phantastic Carnival

Clap Hanz – Hot Shots Golf series
Polyphony Digital – Gran Turismo series, Omega Boost
SCE Japan Studio (Project SIREN Team, etc.) – Ape Escape series, LocoRoco
Team ICO – ICO, Shadow of the Colossus

Iam looking for a better list of japan studios.

Microsoft 1st party:

Sony 1st party:

SCE

• Clap Hanz – Hot Shots Golf series
• Polyphony Digital – Gran Turismo series, Omega Boost
• SCE Japan Studio (Project SIREN Team, etc.) – Ape Escape series, LocoRoco
• Team ICO – ICO, Shadow of the Colossus

SCEA

•  
  • Incognito Entertainment – Twisted Metal: Black, Warhawk
  • Naughty Dog – Jak series
  • SCE Bend Studio (formerly Eidetic) – Syphon Filter series
  • SCE Foster City Studio (includes 989 Studios) – Rise to Honour
  • SCE San Diego Studio (includes 989 Sports & Red Zone Interactive) – The Mark of Kri, NBA '07
  • SCE Santa Monica Studio – God of War, Kinetica
  • Sony Online Entertainment LLC. – EverQuest
  • Zipper Interactive – SOCOM: U.S. Navy SEALs series

SCEE 

•  
  • Guerrilla Games – Killzone series
  • SCE London Studio (includes Team SOHO & Camden) – The Getaway series, SingStar
  • SCE Studio Cambridge (formerly Millennium Interactive) – MediEvil series, Primal
  • SCE Studio Liverpool (formerly Psygnosis) – Wipeout series, F1 series

SCEK

•  
  • SCE Korea – EyeToy: EduKids, GloRace: Phantastic Carnival

Nintendo 1st party:

looking at the first three replies it seems everyone is familiar with wiki .

thanks everyone for your input I was just wondering who everyone was aligned with this generation so thanks a bunch