PHOTOS: 100 of the coolest people in NYC tech partying at the top of the One World Trade Center

This year's Silicon Alley 100 party was held at the top of One World Trade Center.

The observatory at One World Trade Center has breathtaking views of New York City.

It was only appropriate that a party celebrating New York City companies served New York City-themed drinks.

If you don't Instagram from the top of 1 WTC, were you even there?

There was a ton of food for guests to munch on throughout the night.

The party had three open bars...

...and servers walking around shucking oysters on-demand for guests.

And here's Business Insider's own video editors, Justin Maiman and Sarah Silverstein.

RRE Ventures' Alice Lloyd George, Mic's Chris Altchek, and Business Insider's Peter Spande strike a pose.

Warby Parker's Dave Gilboa eyes the spread of burgers, chicken sandwiches, and lobster rolls.

The view from the top when the sun set wasn't too bad either.

The Saavn crew came to hang out.

Here's Ben Mckean, the former Groupon exec who launched his food startup Hungryroot earlier this year.

Gawker Media COO Scott Kidder and media dynamic duo Jamie and Brian Stelter made an appearance.

The Blue Apron crew dropped by.

Fundera's Jared Hecht and the Huffington Post's Jared Grusd smile for the camera.

AptDeco cofounder Reham Fagiri with Squad's Adam Liebman.

Etsy CEO Chad Dickerson — the #1 guy on our Silicon Alley 100 list — also showed up to the party.

Here's Troops' Dan Reich, Scott Britton, and Greg Ratner and Squad's Adam Liebman.

Guests loved The Bosco's photobooth.

Foursquare CEO Dennis Crowley and his wife Chelsa Crowley, the cofounder of makeup startup Stowaway, snapped a few pictures.

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Of course, the party wouldn't have been possible without BI's event director, Valerie Reimer (left).