This is a list of notable corporations headquartered in Los Angeles County, California. The table is arranged alphabetically by company.
| Company | Industry |
|---|---|
| Activision Blizzard | video games |
| Aerojet Rocketdyne Holdings | aerospace |
| The Aerospace Corporation | aerospace |
| Avery Dennison | packaging |
| Big 5 Sporting Goods | sporting goods |
| California Pizza Kitchen | food and beverage |
| Capital Group Companies | financial services |
| CBRE Group | real estate |
| Delta Scientific | defense & security |
| Deluxe Entertainment Services Group | entertainment |
| Dine Brands Global | restaurants |
| Dreamworks Animation | animated films |
| Dole Food Company | agribusiness |
| Dollar Shave Club | consumer packaged goods |
| Edison International | public utility |
| Fandango Media | online media |
| Farmers Insurance Group | financial services |
| Forever 21 | retail |
| Guess (clothing) | fashion |
| Health Net | managed health care |
| Herbalife | multi-level marketing |
| The Honest Company | retail |
| Hot Topic | retail |
| Hulu | entertainment |
| ICANN | nonprofit |
| Insomniac Games | video games |
| Inter-Con Security | private security |
| Live Nation Entertainment | entertainment |
| KB Home | homebuilding |
| Korn Ferry | professional services |
| Mattel | entertainment |
| MGM Holdings | entertainment |
| Molina Healthcare | healthcare |
| Legendary Pictures | motion picture |
| Panavision | motion picture equipment |
| Panda Express | food service |
| PCM, Inc. | direct marketer |
| Public Storage | self storage |
| Princess Cruise Lines | travel tours |
| Razor USA | personal transport |
| Reliance Steel & Aluminum Co. | metals |
| Riot Games | video games |
| Snap Inc | social media |
| SpaceX | aerospace |
| Tetra Tech | professional services |
| Trader Joe's | retail (grocery) |
| Tutor Perini | construction |
| TrueCar | technology |
| Universal Pictures | film |
| The Walt Disney Company | entertainment |
| Warner Bros. | entertainment |
| Warner Music Group | music |
| Wyle Laboratories | scientific and technical services |