Market Share by Top Websites

1 MailChimp is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 Despite its recent growth, Constant Contact is still behind MailChimp in all market share segments.

Websites Categories

1 MailChimp has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Shopping and 217 other categories.

2 Constant Contact is leading in Philanthropy, Libraries & Museums, Mental Health, Animal Products & Service and 16 other categories.


1 MailChimp is leading in most countries, including United States, United Kingdom, Canada, Australia and 222 other countries.

2 Constant Contact is leading in Belize, Liberia, Northern Mariana Islands, Curaçao and one other country.