How many companies use EmailJS vs Four?

37 companies use EmailJS and 3,356 companies use Four in our database. Four is more widely adopted with 90.7x more companies than EmailJS.

Can I get a list of companies using both EmailJS and Four?

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.

Four is used by 3,356companies — 90.7x more than EmailJS (37).

37 use EmailJS3,356 use Four

	EmailJS	Four
Companies	37	3,356
Category	Email	Payment

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3,393 companies with emails, tech stacks, and contacts

1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=emailjs

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