Company lists · Data refreshed September 2026

All Open source email marketing software companies lists

Every Open source email marketing software companies list RevenueBase publishes, by country and city. 2 lists covering 198 companies, verified September 2026. Largest markets first.

Open source email marketing software companies by location

Open source email marketing software companies based in the United States147
Open source email marketing software companies based in the United Kingdom51

Counts are matching companies in the RevenueBase company graph as of each list's last refresh date.

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