Sean Mansouri, CFA


Sean joined Gateway in 2013 and is responsible for managing several of the firm’s consumer, Internet and business services clients.

Since joining Gateway, he has successfully managed dozens of client campaigns and has arranged more than 200 investor marketing events across the country. Sean has also provided strategic counsel on numerous M&A transactions, equity/debt financings and activist/crisis communications.

Prior to Gateway, Sean was a senior analyst on the transaction advisory team at Mercer Advisors, where he prepared USPAP-compliant fair market valuations and structured more than 50 leveraged buyouts of privately-held corporations. He also served in American Express’ financial reporting group, covering international markets across Southeast Asia and Latin America.

Sean earned his BS in finance from the W.P. Carey School of Business at Arizona State University. He is an active member of the CFA Society of Orange County.