Leif Welch

Co-Founder & CEO JamLoop

Leif Welch is the Founder and CEO of JamLoop, a performance-driven Connected TV (CTV) platform built to help marketers turn streaming TV into a measurable growth engine. Originally founded to better connect local buyers and sellers, JamLoop has evolved into a full-service solution offering precision targeting, real-time analytics, premium inventory, and a deep commitment to customer success.

A 25-year adtech veteran, Leif brings extensive experience in helping brands maximize media investments. His entrepreneurial drive is fueled by a lifelong passion for music and a belief that great things happen when people “jam” together. Prior to JamLoop, Leif held leadership roles at several top digital media and ad tech companies, including Cox. He holds a BSE and BA from the University of Pennsylvania and an MBA from Northwestern’s Kellogg School of Management.

Monday, February 23: Summit Day

12:45 PM Customer Journey: Client Case Study: The 70/30 Rule: How the Best Marketers Make TV Work Like Digital

Search and Social aren’t scaling like they used to. The next performance unlock? Streaming TV advertising— if you can prove it works.

In this session, JamLoop CEO Leif Welch introduces the 70/30 Rule: a practical framework for using CTV like the rest of your performance stack. Learn how retail and ecommerce teams are testing streaming with full transparency, real attribution, and measurable business outcomes — not vanity metrics. This isn’t about awareness. It’s about unlocking growth — and knowing exactly when to reallocate budget with confidence. Finally, TV that performs like digital.

Check out the incredible speaker line-up to see who will be joining Leif.

Download The Latest Agenda