If you have ever tried to buy podcast advertising at scale, you already know that podcast advertising networks are not all built the same. Some give you massive reach with blunt targeting. Some give you surgical precision with a much smaller footprint. Some are built for brand awareness. A few are genuinely useful for B2B demand generation. The difference between picking the right one and defaulting to the biggest name is often tens of thousands of dollars and a campaign that either performs or quietly flatlines.
This guide breaks down the six major networks, how programmatic podcast ad buying actually works, what you should expect to pay, and how to evaluate fit against your ideal customer profile. And at the end, we will make the case that for B2B brands, owning a show beats buying access to someone else's audience every time.
Podcast advertising has two primary buying models: direct deals and programmatic.
Direct deals are negotiated one-to-one with a show or its network rep. You agree on placement, format, run dates, and CPM. You get a guaranteed slot on a specific show with a specific audience. This is the traditional model and still the gold standard for high-intent B2B buys.
Programmatic podcast advertising is automated. A demand-side platform (DSP) connects to multiple ad networks simultaneously. Inventory is auctioned in real time. Your ad gets served to listeners who match your targeting parameters across thousands of shows without you negotiating each placement individually.
The programmatic flow: set campaign parameters, DSP bids on available inventory, winning bid triggers ad insertion, attribution tracked via promo codes or vanity URLs.
This approach scales fast and costs less per impression. The trade-off is context loss. For B2B brands targeting specific job titles or verticals, context matters a lot more than it does for consumer awareness campaigns.
iHeart is the largest audio network in the US, combining terrestrial radio, digital streaming, and podcasting under one roof. Its podcast network reaches over 300 million monthly listeners, making it the single biggest footprint in the space.
From a B2B targeting standpoint, iHeart's strongest capabilities are demographic and geographic. Age, gender, location, and device targeting are solid. Vertical-specific or job-title-based targeting is more limited compared to platforms built on first-party digital data. For B2B brands with broad awareness goals or significant geographic targeting needs, iHeart delivers scale. For narrow ICP targeting in a specific industry vertical, you will work harder to justify the spend.
Typical CPM range: $15 to $30, depending on format and targeting parameters.
Worth noting: iHeart's radio advertising roots mean it also handles radio advertising agency-style buys that blend audio streaming with traditional broadcast. If your campaign strategy includes local radio advertising alongside podcast reach, iHeart's cross-channel capabilities are a genuine differentiator. Radio advertising cost through iHeart's combined platform is often bundled into audio packages rather than priced as a standalone line item.
Spotify's Audience Network launched in 2021 and has grown into one of the most data-rich programmatic options in the space. Spotify has first-party listener data on 100+ million podcast listeners globally, including streaming behavior, playlist preferences, content genre consumption, and demographic signals.
For B2B advertisers, the pitch is targeting depth. Spotify's interest-based and behavioral segments let you reach listeners based on what they actually engage with, not just what they claim in a survey. Targeting by business content, technology topics, and professional development categories is genuinely available here in a way that feels more precise than many competitors.
The caveat is that Spotify's closed ecosystem means ads served through SPAN only appear on shows hosted on Spotify's infrastructure. That excludes a large portion of the independent podcast world. Scale is strong, but you are not reaching the entire podcast universe.
Typical CPM range: $15 to $35 for programmatic inventory; direct deals with premium Spotify-exclusive shows run higher.
Amazon's streaming ad network brings something unique to the table: purchase intent data. Amazon knows what its users search for, browse, and buy. When you target through ASAN, you can reach listeners based on behavioral signals that go well beyond content preference or demographics.
For B2B brands selling software, SaaS tools, or professional services to buyers who actively research technology purchases on Amazon, this targeting layer can be surprisingly effective. ASAN inventory spans Audible, Amazon Music, and partner podcast publishers. Reach is strong, but the network skews toward premium audio consumption patterns rather than the broad independent podcast landscape.
Typical CPM range: $20 to $40. Amazon's purchase-signal targeting justifies the premium over pure awareness networks.
Midroll is the ad sales arm of SXM Media (SiriusXM's digital division), representing premium podcast shows including many of the most well-known titles in business, comedy, true crime, and news. If you want host-read ads on shows with established, loyal audiences, Midroll is one of the first places B2B buyers go.
The network's strength is quality over quantity. Midroll curates shows with engaged listener bases. Host-read ad formats, which consistently outperform produced spots on recall and purchase intent, are a core part of what Midroll sells. The trade-off is inventory access: you are buying into a curated premium network, not programmatic scale across thousands of shows.
For B2B brands that have identified specific shows their audience loves, direct buys through Midroll can deliver some of the best CPMs-to-outcome ratios in the industry. Learn more about how format affects performance in our podcast advertising rates breakdown.
Typical CPM range: $25 to $55 for mid-roll host-read placements on premium shows.
Acast positions itself as the world's largest independent podcast marketplace, with over 100,000 shows across 85+ countries. The network is built on open infrastructure, which means it reaches shows distributed across all major platforms rather than being locked into a single app ecosystem.
For B2B advertisers, Acast's strength is variety. Genre targeting, contextual matching, and programmatic buying are all available. The independent-first model means you can reach niche B2B shows that would never appear in a closed network. If your ICP listens to industry-specific podcasts that are hosted independently rather than on Spotify or Amazon, Acast is often where that inventory lives.
Acast also offers a self-serve marketplace called Acast+ for direct-buy campaigns, which lowers the barrier to entry for mid-market B2B brands that are not working with a media agency.
Typical CPM range: $18 to $40, with premium niche inventory at the higher end.
Triton Digital operates at the infrastructure layer of the podcast and streaming audio industry. Where other networks are primarily marketplaces, Triton is more of a platform-of-platforms: it powers audience measurement, ad insertion, and programmatic selling for broadcasters, publishers, and podcast networks worldwide.
For B2B advertisers, Triton's value is DSP connectivity. If you are running programmatic audio campaigns through a major DSP, you are almost certainly touching Triton inventory whether you know it or not. Triton also handles enterprise radio advertising agency buying for broadcast clients moving into digital audio, making it a natural home for brands that straddle traditional and digital radio spend.
Targeting through Triton leans on contextual and demographic parameters fed through the DSP stack. It is not the place to go for first-party behavioral targeting depth, but it is reliable for large-scale programmatic audio reach.
Typical CPM range: $10 to $25 on open exchange programmatic. Direct deals through publisher partners vary by show.
Here is a quick reference for what to expect when budgeting a B2B podcast advertising campaign across networks:
| Format / Network Type | Typical CPM Range |
|---|---|
| Open programmatic (Triton, DSP exchange) | $10–$20 |
| iHeart Audio Network | $15–$30 |
| Spotify Audience Network | $15–$35 |
| Acast (mid-market shows) | $18–$40 |
| Amazon Streaming Ad Network | $20–$40 |
| Midroll / SXM premium host-read | $25–$55 |
| B2B niche direct-buy (any network) | $40–$75 |
For more detail on CPM tiers by ad format and placement, see our full podcast advertising rates guide.
Not all targeting capabilities are created equal. Here is how the major approaches stack up for B2B audience alignment:
Demographic targeting (age, gender, income) is available on most networks. For B2B, it is a starting point, not a strategy.
Geographic targeting is strong across iHeart, Spotify, and most programmatic DSPs. Useful for region-specific campaigns or local radio advertising integration.
Contextual / genre targeting places ads on shows in categories like business, technology, or entrepreneurship. More reliable for B2B alignment than pure demo targeting.
First-party behavioral data is Spotify's differentiator. Listening behavior signals create more relevant audience matching than passive demographic filters.
Purchase intent signals are Amazon's advantage. If your B2B product sees active research on Amazon properties, ASAN's behavioral layer adds real targeting value.
Show-level direct buys remain the most reliable method for B2B audience alignment. A direct deal for host-read mid-roll on the right show will outperform network programmatic almost every time.
For a deeper look at how national B2B campaigns are structured across these options, see our guide on podcast ad options for national campaigns.
Picking the right network is not about which one is biggest. It is about which one puts your message in front of the right ears. Here is a practical evaluation checklist:
1. Does your ICP actually listen to podcasts in this network's catalog? Start with audience fit, not scale. A smaller network with niche B2B shows is worth more than a massive consumer-skewing platform if your buyers are not there.
2. What targeting parameters does the network support? If your ICP is defined by job title, industry vertical, or company size, you need first-party or behavioral targeting that maps to those signals. Pure demographic targeting will waste budget.
3. What ad formats does the network support? Host-read mid-roll drives measurably better recall and conversion than programmatic audio. If your network of choice only offers produced spot insertion, adjust your performance expectations accordingly.
4. What is the minimum buy? Some networks require $10,000+ minimum commitments. Others (like Acast's self-serve platform) allow entry at $500. Match the minimums to your testing budget before committing to a full campaign.
5. How will you measure performance? Promo codes, dedicated landing pages, and vanity URLs are still the most reliable attribution tools for podcast. Make sure your campaign structure supports measurement before you hit launch. For a fuller view of attribution strategy, our podcast advertising overview covers the fundamentals.
Every dollar you spend through a podcast advertising network is building someone else's audience. The relationship lives on that show's feed. When your campaign ends, the relationship ends.
For B2B brands that want a durable, compounding content asset, buying time on other people's shows is a short-term tactic, not a long-term strategy.
A branded B2B podcast puts your brand in the feed permanently. Your team builds the relationship. Your episodes rank in search. Your audience grows with you, not around you. The CPM math flips entirely: instead of paying $40 to $75 per thousand impressions to borrow attention, you build an audience you own and activate repeatedly.
Networks have a place. They can accelerate reach when you need it. But the B2B brands winning in audio are not the ones renting the most inventory. They are the ones building something their audience wants to come back to.
If you are ready to explore what that looks like for your brand, start with our top podcast platforms guide or get your free podcasting plan from the Podsicle Media team.
