Based in the New York office, he will be responsible for developing Invnt’s sales strategy and driving revenue.
Schrader joins after eight years at Invision Communications, where he was global account director and business development executive, working with brands such as EMC and Novartis.
Cullather said: "Matt is the ideal person to lead Invnt’s sales team. His strategic vision, competitiveness and creativity fit perfectly into our challenger ethos.
"He has excellent relationships with global clients and agencies, and he has achieved great success in finding, managing and maintaining a robust clientele. We have a tremendous opportunity to sell the Invnt value proposition in a focused, strategic way, and Matt will play a key role in making that happen."
He added: "As a proven team leader Matt will develop, build and guide our sales efforts and scale our business. Driving new revenue growth, along with building deep, lasting relationships, will be a priority across all six Invnt offices."
The Time Inc. owned agency has also recently rebranded, a move that encompasses a new company logo and naming configuration. More to come.
Read up on Cullather's 2016 trend predictions here.