Email & Messaging

Top N Ranked

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Company Size

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Technology

Showing 1–25+ results

Domain	Company	Category	Country	Employees	Revenue	Rank
live.com	–	Email	–	–	–	21
whatsapp.net	–	Text & Instant Messaging	–	–	–	32
whatsapp.com	WhatsApp	Text & Instant Messaging +3	US	1K-5K	$116.6B	54
wa.me	WhatsApp	Text & Instant Messaging +2	US	1K-5K	–	68
apache.org	The Apache Software Foundation	Other	US	1K-5K	–	121
outlook.com	–	Email	–	–	–	126
mailinabox.email	Mail-in-a-Box	Email +3	–	–	–	142
openai.com	OpenAI	Email	US	251-1K	$28M	232
telegram.org	Telegram Messenger	Text & Instant Messaging +1	GB	11-50	–	245
slack.com	Slack	Text & Instant Messaging	US	1K-5K	$903M	344
line.me	LINE	Text & Instant Messaging +2	US	–	–	396
telegram.me	Telegram Messenger	Text & Instant Messaging +1	GB	11-50	–	399
live.net	–	Email & Messaging +1	–	–	–	552
discordapp.com	Discord	Voice & Video Chat +4	US	251-1K	–	830
spamhaus.org	The Spamhaus Project	Electronic Spam +3	AD	11-50	–	1,158
akismet.com	Akismet	Electronic Spam	US	1K-5K	–	1,386
gmail.com	–	Email & Messaging	–	–	–	1,630
vivox.com	Vivox	Voice & Video Chat +7	US	11-50	$2.2B	1,798
office365.us	–	Email & Messaging	–	–	–	1,899
max.ru	MAX.ru	Text & Instant Messaging +3	RU	–	–	1,979
wa.link	Walink	Text & Instant Messaging +3	–	–	–	1,991
rspamd.com	–	Electronic Spam +4	–	–	–	2,168
signal.org	Signal Messenger	Other +2	US	51-250	–	2,242
hotmail.com	–	Email	–	–	–	2,287
web.de	–	Email +3	–	–	–	2,412