How many companies use Klaviyo vs Tolstoy?

65,754 companies use Klaviyo and 1,352 companies use Tolstoy in our database. Klaviyo is more widely adopted with 48.6x more companies than Tolstoy.

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

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 — 48.6x more than Tolstoy (1,352).

65,754 use Klaviyo1,352 use Tolstoy

	Klaviyo	Tolstoy
Companies	65,754	1,352
Category	Marketing automation	Marketing automation

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67,106 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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