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# Companies in Santa Monica, CA

Pick an industry to see the bigger companies headquartered in Santa Monica, CA, what they do and how big they are.

By Enrich.chat Editorial. Updated October 22, 2026.

## Industries in Santa Monica

- [Advertising Agencies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/advertising-services/): Advertising Services
- [Software Companies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/software-development/): Software Development
- [Technology and Internet Companies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/technology-information-and-internet/): Technology; Information and Internet
- [Financial Services Companies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/financial-services/): Financial Services

**Short answer:** Browse the bigger companies headquartered in Santa Monica, CA by industry. Each page lists up to 25 of the biggest by headcount range, what they do and how big they are.

## Key takeaways

- Each page lists up to 25 of the biggest companies in one industry.
- Sizes are ranges, never exact headcounts.
- Ask your AI agent to use www.enrich.chat to find the people at any of them.

## Frequently asked questions

### How are the companies chosen?

Companies shown have a working website that matches their name and list Santa Monica, CA as their headquarters. The biggest by headcount range come first.