M-net Telekommunikations GmbH
Category: telecommunication
mail.de GmbH
Category: telecommunication
Also runs: mail.ch, mail.fr, mail.co.uk, mail.uk, FanMail-Projekt @acdc.com
The Rocket Science Group LLC
Categories: ads, telecommunication
Also runs: MailChimp (mailchimp.com)
Mailgun Technologies, Inc.
Category: telecommunication
Mailjet SAS
Category: telecommunication
Xfera Móviles, S.A.U
Category: telecommunication
Also runs: MÁSMÓVIL
Migadu-Mail GmbH
Category: telecommunication
mobilcom-debitel GmbH
Category: telecommunication
Mobile Vikings NV
Category: telecommunication
Also runs: JIM Mobile
Mozilla Corporation
Categories: non-profit organisation, telecommunication
Also runs: Firefox, Thunderbird, MZLA Technologies Corporation