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Howard Greenstein

Associate Executive Director at Manny Cantor Center, Educational Alliance

Howard Greenstein is the Associate Executive Director for Operations and Business Strategy at the Manny Cantor Center. In this role, he leads strategic operations and oversees infrastructure to support the programmatic mission of all the programs. Opened in 2014 in the newly renovated Educational Alliance building as its flagship community center, Manny Cantor Center is the Lower East Side’s new hub committed to bringing together this vibrant and diverse neighborhood.

Previously he was President of the Harbrooke Group, which specialized in helping companies communicate with their customers using the latest web technologies. Harbrooke Group has worked with clients from small businesses to the Fortune 500, Cable Networks, and Wall Street, as well as major advocacy groups, helping them create their online presences. They helped New York Road Runners create their social media plans and worked to moderate social media interactions during the New York City Marathon for three years. Greenstein has a deep understanding of the operations, technology and marketing worlds, and sits at their intersection.

Greenstein is a writer, speaker, and explainer in many subject areas, and has been a twice-featured speaker at the Association of Junior Leagues International annual meeting. He co-authored "Wired Workforce, Networked CSR- Employee Involvement in the Age of Social Media" with professor Tom Watson while at the NYU Heyman Center in 2011. The paper covered the work of companies including Microsoft, Yahoo, Pfizer, and Western Union regarding corporate social responsibility and social media efforts.

Prior to starting his own firm, Howard's career has spanned corporate and not-for-profit organizations such as Microsoft, JP Morgan, and New York University, as well as several start-ups. At the Twin Towers Fund, he managed the distribution of $168MM in funds to families who lost rescue workers on 9/11. He has worked on events and programs for the New York New Media Association, New York Software Industry Association, Social Media Camp, PodCampNYC, and the Supernova Conference, from moderating panels to coordinating pre- and post-conference panelist interviews, managing media coverage, logistics, streaming media and more.

He spent over five years as a blogger for Inc. magazine, writing the weekly Startup Toolkit column. He co-founded and sat on the Board of Directors of Social Media Club and is president of the New York City Chapter.


  • M.P.S. New York University (Interactive Telecommunications Program)
  • B.S., Cornell University,