| NEC | July 17, 1899 | — | 7 |
| NEC Home Electronics, Ltd. | June 1953 | 3 | 2 |
| Nekogames | — | 1 | 1 |
| Neos | April 19, 2004 | — | 3 |
| Neverland | 1993 | 13 | — |
| Nexon | December 1994 | 4 | 14 |
| Nexton | October 1990 | — | 2 |
| NHK | June 1950 | 1 | — |
| NHN PlayArt | — | 1 | — |
| Nichibutsu | October 1970 | 9 | 7 |
| Nihon Create | April 1989 | 1 | 1 |
| Nintendo | 1947 | 42 | 692 |
| Nintendo Cube | March 2000 | 13 | — |
| Nintendo Entertainment Analysis & Development | September 1983 | 81 | — |
| Nintendo Entertainment Planning & Development | September 16, 2015 | 31 | — |
| Nintendo Integrated Research & Development | 1975 | 1 | — |
| Nintendo Research & Development 1 | 1970 | 47 | — |
| Nintendo Research & Development 2 | 1970 | 8 | — |
| Nintendo Software Planning & Development | September 30, 2003 | 24 | — |
| Nintendo System Development | 1997 | 4 | — |
| Nippon Columbia | October 1910 | 2 | 1 |
| Nippon Computer Systems | December 25, 1980 | 9 | 5 |
| Nippon Cultural Broadcasting Extend | May 11, 2012 | 1 | 1 |
| Nippon Ichi Software | July 12, 1993 | 31 | 49 |
| Nitro chiral | 2004 | 2 | 2 |
| Nitroplus | 2000 | 6 | 4 |
| NMK | May 1989 | 8 | 2 |
| Noir Soft | — | 1 | 1 |
| Noise | 1996 | 5 | — |
| Noise Factory | 1998 | 3 | — |
| NOVECT | — | 1 | — |
| Now Production | June 17, 1986 | 10 | — |
| Npckc | — | 4 | 3 |
| Nude Maker | 2002 | 1 | — |
| Office Create | April 3, 1990 | 1 | — |
| Oink Games | — | 1 | 1 |
| Oizumi Amuzio | — | — | 1 |
| OLM, Inc. | June 1994 | 1 | — |
| Omega Force | 1996 | 25 | — |
| One Compath | January 20, 1997 | — | 1 |
| Ongakukan | September 1985 | 1 | 1 |
| Onion Games | — | 1 | 1 |
| OperaHouse | April 2002 | 1 | — |
| ORCA | — | 1 | — |
| Orcsoft | 2009 | 1 | — |
| Otomate | April 10, 2007 | 16 | — |
| Overdose | — | 1 | 1 |
| Overflow | 1997 | 4 | 1 |
| Pack-In-Video | August 3, 1970 | 3 | 6 |
| Palette | 2002 | 1 | — |
| Panasonic Corporation | 1918 | — | 1 |
| Pandora Box | 1989 | 1 | — |
| Panther Software | 1987 | — | 1 |
| Paon DP | January 20, 1999 | 6 | — |
| Pax Softnica | May 14, 1987 | 3 | — |
| Pencil | — | — | 4 |
| Petit Depotto | — | 1 | 1 |
| Phoenixx | — | — | 8 |
| Picorinne Soft | — | 2 | — |
| Pionesoft | — | — | 1 |
| PiXEL | — | 1 | 1 |
| Platine Dispositif | — | 1 | — |
| Playism | May 2011 | — | 70 |
| Pocketpair | April 2015 | 2 | 1 |
| Pokelabo | November 2007 | 2 | 1 |
| Polygon Magic | April 3, 1996 | 3 | — |
| Polyphony Digital | April 2, 1998 | 12 | — |
| Pony Canyon | October 1966 | 2 | 20 |
| Popy | 1971 | — | 1 |
| Primula | — | 6 | 5 |
| PrincessSoft | 2001 | 1 | 3 |
| Produce! | April 6, 1990 | 1 | — |
| Production I.G | December 15, 1987 | 1 | — |
| Project Siren | 2004 | 4 | — |
| Project Sora | 2009 | 1 | — |
| Project Soul | — | 5 | — |
| Prope | 2006 | 4 | — |
| Prototype | March 27, 2006 | — | 7 |
| Psikyo | July 17, 1992 | 8 | 4 |
| Pulltop | 2002 | 4 | 3 |
| Purple software | 1998 | 13 | 10 |
| Pygmy Studio | November 13, 2007 | 1 | 1 |
| Q Entertainment | 2003 | 5 | — |
| Q-Games | August 9, 2001 | 12 | 7 |
| QualiArts | 2016 | 2 | 1 |
| Quest | 1988 | 7 | 2 |
| Quintet | April 1989 | 4 | — |
| Qureate | October 25, 2021 | 5 | 6 |
| Racjin | April 17, 1995 | 12 | — |
| Rain Entertainment | February 2004 | 1 | 1 |
| Rainy Frog | — | — | 5 |
| Red Entertainment | 1976 | 21 | 1 |
| Regista | 2004 | 2 | 1 |
| Rejet | June 5, 2009 | 7 | — |
| Riverhillsoft | 1982 | — | 1 |
| Royal Industries | 1964 | 1 | 1 |
| Ruby Party | 1990 | 4 | — |
| Rutubo Games | — | 1 | — |
| Ryu ga Gotoku Studio | August 31, 2011 | 12 | — |
| Sacnoth | April 30, 1997 | 4 | — |