• Defunct mass media companies of Japan‎ (1 C, 14 P)

A

• Advertising agencies of Japan‎ (1 C, 8 P)

D

• Dentsu‎ (3 C, 20 P)

F

• Film distributors of Japan‎ (1 C, 11 P)
• Film production companies of Japan‎ (1 C, 60 P)
• Japanese film studios‎ (7 C, 30 P)

I

• ISDB‎ (1 C, 13 P)

J

• Japanese animation studios‎ (132 C, 175 P)

M

• Mass media companies based in Tokyo‎ (5 C, 163 P)
• Music companies of Japan‎ (4 C, 7 P)

N

• News agencies based in Japan‎ (5 P)

P

• Publishing companies of Japan‎ (8 C, 5 P)

R

• Japanese record labels‎ (18 C, 121 P)

T

• Television production companies of Japan‎ (7 P)

V

• Japanese voice actor management companies‎ (1 C, 17 P)

Ω

• Wikipedia categories named after mass media companies of Japan‎ (201 C)

B

• Bandai Channel
• Bandai Namco Holdings
• Broccoli (company)

C

• Crypton Future Media
• CyberAgent

D

• D/visual
• Datam Polystar
• Dentsu
• Dynamic Planning

E

• Exit Music Publishing Inc.

F

• Fujisankei Communications Group
• Fujisankei Communications International

H

• Hakuhodo
• Hobby Japan

I

• ISDB

K

• Kadokawa Corporation
• Kadokawa Future Publishing
• Kitty Films

M

• Magical Company

N

• Nippon Columbia

P

• Production I.G

R

• Recruit (company)
• Rhizomatiks

S

• Scitron Digital Contents
• Senkosha Productions
• Shinseisha
• Shochiku
• Shochiku Studio
• SoftBank Group
• Square Enix

T

• Toho
• Tohokushinsha Film

V

• Voltage (company)

W

• W Vision
• Watanabe Productions

Z

• ZTV (Japan)