Email marketing market share on brand websites

Newsletter sign-ups and email platforms.

#	Technology	UK brands	United Kingdom	Global
1	Klaviyo	6.8%	7%	0.9%
2	Mailchimp	3.2%	4.4%	1%
3	Omnisend	0.3%	0.7%	0.2%
4	Brevo (Sendinblue)	0.1%	0.4%	0.2%
5	OptinMonster	<0.1%	0.3%	0.3%
6	MailerLite	<0.1%	0.2%	0.1%
7	ActiveCampaign	0%	<0.1%	<0.1%
8	Kit (ConvertKit)	0%	<0.1%	<0.1%
9	Privy	0%	<0.1%	<0.1%
10	Sumo	0%	<0.1%	<0.1%
11	GetResponse	0%	<0.1%	<0.1%

Our crawler: 1,359 sites · UK brands · updated 23 Oct 2026 · Methodology