Self-serve podcast ad marketplace introducing the Bumper Score as a verified-listener currency.
Verified listener proof
Bumper's pitch shifted from analytics tool to industry currency with the May 2026 Bumper Score launch — a 0-200 verified-listener index meant to replace download-based CPMs with something advertisers can actually trust. The Score is free. The score itself doesn't pay you; it makes premium pitches credible.
Bumper is a podcast growth and measurement company founded by Dan Misener and Jonas Woost (CBC and Pacific Content veterans) that in 2026 leaned hard into measurement infrastructure with the launch of the Bumper Score. Announced April 21, 2026 and launching as a free service in May 2026, the Bumper Score is an independent audience verification tool — a 0-200 index where 100 represents the industry average, designed to give advertisers a standardized, first-party data-backed signal of how reliably a show delivers ads to real verified listeners. The Score uses real-time listener data, deduplication, fraud detection, and engagement signals from hosting providers, podcast apps, and episode-level retention data. According to research from Oxford Road, better data and verification methods could unlock an additional $1 billion in podcast ad spend annually. To date, Bumper clients have already allocated over half a million dollars toward ad buys enabled by the Bumper Score. For independent podcasters, getting a strong Bumper Score becomes a credential to attach to your media kit — third-party validation that downloads convert to actual listening. Bumper also runs paid Dashboard tiers and agency services. Where it shines is in solving advertiser trust — the chronic credibility problem in podcast measurement. Where it falls short is that the Score alone doesn't generate revenue. Bumper is a measurement and growth partner, not a primary ad marketplace. For shows already monetizing and wanting better sponsor leverage, this is sharp. For shows pre-monetization, it's a step you take after you have inventory worth defending.
AdvertiseCast rebranded as Libsyn's host-read and programmatic ad marketplace at scale.
The largest independent podcast ad marketplace with self-serve buying and YouTube reach.
Spotify's audience-based ad network reaching listeners across Spotify and third-party apps.
Self-serve podcast ad marketplace introducing the Bumper Score as a verified-listener currency.
Bumper Ads is shaped for verified listener proof. Its biggest strength: bumper score launched free may 2026. The Score is free
score doesn't directly generate revenue; still primarily an analytics tool. None of these are deal-breakers on their own, but they're worth knowing before you commit.
It's a paid tool in the $$ range. Some plans have a free trial — check the latest on their pricing page.
Closest in the same category: Libsyn Ads, Acast Marketplace, Spotify Audience Network. Each has its own shape — see the alternatives page for a side-by-side.