About Key Contacts
Two executives who spent careers at the country's largest broadcast companies. They knew exactly how media buying should work — and exactly how often it didn't.
Mark Sullivan and Mark Rinehart spent their careers inside the machine — at Tribune Corporation, LIN TV, and Raycom Media, they represented hundreds of local and national businesses, buying and selling media across every major market in the country.
What they kept seeing frustrated them: companies committing serious budgets to television, radio, and digital campaigns with no real framework for measuring what worked. Agencies optimized for billings. Clients paid for activity, not results.
Key Contacts was built to fix that. Not just to buy media well — to buy it accountably, with every placement tied to a measurable outcome and every dollar justified.
Our Mission
"Each dollar spent should have a measurable and guaranteed result."
This isn't a tagline. It's the standard we hold every campaign to — and the question we ask before recommending any placement.
2018
Year founded
30+
Years combined experience
Leadership
Two executives. One shared conviction that advertising must prove its value.
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Co-Founder
Mark built his career at some of the country's largest broadcast organizations including Tribune Corporation, LIN TV, and Raycom Media — representing local and national businesses across every major market. He co-founded Key Contacts after recognizing a consistent gap: sophisticated businesses spending aggressively on campaigns that produced no verifiable return.
Industry background
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Co-Founder
Mark Rinehart brings three decades of media buying and selling experience from the same broadcast industry landscape — Tribune, LIN TV, and Raycom Media. His expertise in audience analytics, station relationships, and rate negotiation gives Key Contacts leverage that independent buyers cannot replicate.
Industry background
How We Work
We do not recommend a placement we cannot measure. Every buy is defined by a success metric before it runs.
Nielsen, Rentrak, Scarborough, and Marshall Marketing inform every strategy. Audience modeling replaces guesswork.
We work like an internal team, not a vendor. Your goals become our goals — and we report against them honestly.
You see every invoice, every rate card, every performance report. No black boxes, no agency markups hidden from view.
Tell us about your business, your audience, and your goals. We'll tell you exactly how we'd approach it.
Based in Denver. Serving clients nationwide. 303.503.5420