These are the 15 most successful CMOs in the US

Netflix's chief marketing officer was the most-successful CMO in the US in 2015, according to ExecRank.

ExecRank's uses an algorithm to help match companies with advisors.

The algorithm assesses measures such as experience in the executive role, business results during their tenure, board member appointments, company earnings per share growth this year, and industry/professional reputation.

We've also provided details on where the marketers appeared in last year's list, although ExecRank chairman and CEO pointed out to AdAge that year-to-year comparisons aren't entirely perfect because the algorithm gets tweaked annually.

ExecRank ranks 249 CMOs alogether - here are the top 15.