Cloudmark was founded in September 2001 by Vipul Ved Prakash and Jordan Ritter [REF].
Today Cloudmark's clients include more than 100 Tier 1 carriers and ISPs around the globe, including Comcast, GoDaddy, Rackspace, Verizon, Sprint, Cox and Time Warner in the U.S. International accounts include O2, EE Limited and Vodafone in the UK, Swisscom.