In 2003, Tenaglia co-founded Zero Point Zero Production with producing partner Chris Collins. Together they created and continue to Executive Produce the Peabody and Emmy Award winning series Anthony Bourdain: Parts Unknown for CNN and have since grown ZPZ to a 150+ person company producing hundreds of episodes of television across numerous series, including the Emmy Award winning Mind of A Chef, Emmy nominated The Hunt with John Walsh, and critically acclaimed, award winning Meateater with Steven Rinella.
Along with partners Collins and Joe Caterini, Tenaglia oversees all creative development for ZPZ and has Executive Produced content for Netflix, CNN, Discovery, PBS, SyFy, Spike, Esquire, Travel and A+E Networks and for brands such as MasterCard, Breville, Sonos and Yeti. In 2016 Tenaglia directed the feature documentary Jeremiah Tower: The Last Magnificent, which premiered at the Tribeca Film Festival and was picked up for theatrical distribution by The Orchard. In 2017 Tenaglia produced the feature documentary Wasted! The Story of Food Waste, which also premiered at the Tribeca Film Festival and was picked up for theatrical distribution by NEON Super LTD.