How many companies use Klaviyo vs Send?

109,600 companies use Klaviyo and 1,027 companies use Send in our database. Klaviyo is more widely adopted with 106.7x more companies than Send.

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

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 109,600companies — 106.7x more than Send (1,027).

109,600 use Klaviyo1,027 use Send

	Klaviyo	Send
Companies	109,600	1,027
Category	Marketing automation	Marketing automation

Get the full comparison

110,627 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=klaviyo

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