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Marketing agencies in Los Angeles, CA

662 marketing agencies listed in Los Angeles, California. 634 with a phone number and 586 with a website.

Los Angeles accounts for 11% of the marketing agencies listed in California and ranks #1 among California cities for marketing agencies.

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Los Angeles, CA has 662 marketing agencies listed on USA Business Search. 634 list a phone number and 586 list a website. The most listings are in ZIP codes 90028, 90017, 90036.

Updated October 2026
Featured · From the team behind USA Business Search

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1019 E 4th Pl, Los Angeles, CA 90013 · Claim or fix

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How to choose a marketing agency in Los Angeles

  • Ask who will actually do the work and how you'll see results each month.
  • Be wary of anyone who guarantees rankings. No one can promise a spot in Google.
  • Make sure you own your website, ad accounts and Google Business Profile, not the agency.

How Los Angeles businesses get found in Google and AI answers

  • Claim and complete your Google Business Profile, then keep hours, photos and services current.
  • Use the same business name, address and phone everywhere you are listed, including directories like this one.
  • Publish pages that answer the questions customers actually ask, so ChatGPT, Gemini, Perplexity and Google AI Overviews can cite you.
  • Add LocalBusiness schema, clear pricing and service pages so AI assistants and booking agents can read your details.

Learn more: SEO vs. AI search optimization · Get found on Google Maps and in AI answers · How to pick an SEO company

Common questions

How many marketing agencies are listed in Los Angeles, California?

USA Business Search shows 662 marketing agencies in Los Angeles. 634 list a phone number and 586 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 90028, 90017, 90036, 90013, 90025, 90067, 90064, 90071.

How do I choose a marketing agency in Los Angeles?

Ask who will actually do the work and how you'll see results each month. Be wary of anyone who guarantees rankings. No one can promise a spot in Google.

How do marketing agencies in Los Angeles compare with the rest of California?

Los Angeles has 11% of the 6,094 marketing agencies listed in California, which ranks #1 among California cities for this category.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

What should I ask a Los Angeles marketing agency before I hire them?

Ask who will actually do the work, how they track calls and forms, and what happens to your accounts if you leave. Eye To Ad Media offers a free review of how your business shows up in Google and AI answers.

What is AI search optimization (AIO or GEO)?

It is the work of making your business easy for AI assistants like ChatGPT, Gemini and Google AI Overviews to understand, trust and recommend: consistent listings, structured data, and pages that answer real customer questions. Read SEO vs. AI search optimization.

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