How many companies use Facebook Pixel vs Optimizely?

515,289 companies use Facebook Pixel and 5,948 companies use Optimizely in our database. Facebook Pixel is more widely adopted with 86.6x more companies than Optimizely.

Can I get a list of companies using both Facebook Pixel and Optimizely?

Yes. AgentData tracks companies using both tools. Sign up free to access the full list with emails, tech stacks, and contacts via CSV or API.

Facebook Pixel vs Optimizely

Facebook Pixel is used by 515,289companies — 86.6x more than Optimizely (5,948).

515,289 use Facebook Pixel5,948 use Optimizely

Side-by-side comparison

	Facebook Pixel	Optimizely
Companies	515,289	5,948
Category	Other	Other

Company adoption

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521,237 companies with emails, tech stacks, and contacts

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API access

GET /api/v1/tech?name=facebook-pixel

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