How many companies use Klaviyo vs Kustomer?

52,099 companies use Klaviyo and 111 companies use Kustomer in our database. Klaviyo is more widely adopted with 469.4x more companies than Kustomer.

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

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 52,099companies — 469.4x more than Kustomer (111).

52,099 use Klaviyo111 use Kustomer

	Klaviyo	Kustomer
Companies	52,099	111
Category	Other	Other

Get the full comparison

52,210 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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