2. Constant Contact is an online marketing
company founded as "Roving Software" in
1995 and took on the name "Constant
Contact" in 2004. Its Headquarters is
located in Waltham, Massachusetts and
its yearly revenue is $332 million.
3. MailChimp is an email marketing service
founded in 2001. Its Headquarters is
located in Atlanta, Georgia and it sends
over 10 billion emails per month on behalf
of its users.