What it's like inside the ultra-exclusive club that counts Roger Goodell, Anthony Scaramucci, and Wall Street billionaires as members

CORE: Club isn't easy to get into.

The Manhattan club counts bigwigs from the city's major industries as members, including NFL Commissioner Roger Goodell, billionaire fashion entrepreneur J. Christopher Burch, former White House communications director Anthony Scaramucci, and Blackstone Group CEO Stephen Schwarzman.

But don't mistake it for the stuffy Upper East Side clubs that have defined New York City's 1% for more than a century, founder Jennie Enterprise told Business Insider. CORE: Club seeks to be "the anticlub."

We recently spent the day at CORE to see what it's all about.