How many companies use Klaviyo vs Marketo?

65,754 companies use Klaviyo and 6,799 companies use Marketo in our database. Klaviyo is more widely adopted with 9.7x more companies than Marketo.

Can I get a list of companies using both Klaviyo and Marketo?

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.

Klaviyo is used by 65,754companies — 9.7x more than Marketo (6,799).

65,754 use Klaviyo6,799 use Marketo

	Klaviyo	Marketo
Companies	65,754	6,799
Category	Marketing automation	Marketing automation

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72,553 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

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GET /api/v1/tech?name=klaviyo

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