MarTech Podcast Episode Summary

Episode Title: Who is winning the never-ending turf war between DSPs and SSPs?
Release Date: October 7, 2025
Host: Benjamin Shapiro
Guest: Amanda Martin, Chief Revenue Officer at mediavine

Overview

This episode of the MarTech Podcast dives into the ongoing competition and relationship between Demand-Side Platforms (DSPs) and Supply-Side Platforms (SSPs) within the programmatic advertising ecosystem. Amanda Martin, CRO of mediavine, shares her expertise on where the balance of power is shifting, how the market is evolving (especially for niche DSPs), and strategies publishers can employ to future-proof their ad monetization efforts.

Key Discussion Points & Insights

1. The Balance of Power: DSPs vs. SSPs

• Amanda Martin discusses the dynamic, ongoing "turf war" between DSPs and SSPs, ultimately suggesting that the competition is nuanced and outcome depends on stakeholder priorities.
  • "Depends on the day and the headline, but I think ultimately it's going to be brand's affinity of what path they choose and what relationship they value the most." – Amanda Martin [01:44]
• She acknowledges the commoditization of the SSP market—suggesting it is no longer significantly differentiated.
  • "I definitely think the SSP market is commoditized and that not all will win. My concern is that will the DSPs take out the advocates of the publishers?" – Amanda Martin [01:44]
• The ultimate winners will enable more directness and transparency, benefiting both buy- and sell-sides.
  • "I would say that directness is going to win in the end, and I think DSPs and SSPs alike will win in that battle." – Amanda Martin [01:44]

2. Clarifying the Roles of DSPs and SSPs

• The host asks for clarification on the nature of each side and how commoditization has impacted them.
  • "There's the supply side and you're saying that's been commoditized... You didn't say that the buy side was commoditized. Who are the players and what are some of the differences between them on the DSP side?" – Benjamin Shapiro [02:25]

3. Major DSP Players and Market Landscape

• Amanda lists the major players:
  • Google (the incumbent)
  • The Trade Desk (successful independent)
  • Amazon (the challenger; "I wouldn't bet against Amazon in any race.")
  • Other longtime platforms like Yahoo, Basis, Viant
• She notes a significant shift: niche, vertical-specific DSPs are expanding, offering tailored solutions for specific advertiser segments.
  • "There's actually been a lot of development in niche vertical-specific DSPs...which is actually a nice expansion for us to see, because publishers getting revenue from more than a few sources is a safer space for us." – Amanda Martin [02:49]

4. Niche DSPs: Examples and Benefits

• Examples:
  • PulsePoint: "You're going to see a ton of pharma come through."
  • Viant: "You're going to see a lot of local, regional, independent agency spend come through those pipes."
• These platforms provide diversification for publishers by bringing in revenue from vertical- or region-specific sources not necessarily reached by larger, generalist DSPs.
  • "No buyer is only buying in one seat...you have a lot of revenue coming from 4 to 5 to 10 DSPs all at the same time. So it definitely diversifies where you're getting your paycheck." – Amanda Martin [03:49]

5. Best Practices & Takeaways for Publishers

• Diversification is key: publishers should establish relationships with multiple DSPs, including niche players, to safeguard revenue and reduce dependency on a single platform.
• Directness and transparency in deals will likely determine long-term success in this evolving landscape.

Notable Quotes & Memorable Moments

• On the Market's Complexity:

  "Depends on the day and the headline, but I think ultimately it's going to be brand's affinity of what path they choose and what relationship they value the most."
  — Amanda Martin [01:44]

• On Commoditization:

  "The SSP market is commoditized and that not all will win. My concern is...will the DSPs take out the advocates of the publishers?"
  — Amanda Martin [01:44]

• On Growth of Niche DSPs:

  "...there's actually been a lot of development in niche vertical-specific DSPs...publishers getting revenue from more than a few sources is a safer space for us."
  — Amanda Martin [02:49]

• On Diversification:

  "No buyer is only buying in one seat...you have a lot of revenue coming from 4 to 5 to 10 DSPs all at the same time."
  — Amanda Martin [03:49]

Timestamps for Key Segments

• [01:44] – Amanda introduces her take on the DSP vs. SSP turf war
• [02:25] – Benjamin presses for clarity on buy- vs. sell-side commoditization and players
• [02:49] – Amanda details key DSP players and the evolution of niche DSPs
• [03:49] – Specific examples of niche DSPs and impact on publisher revenue streams

Final Thoughts

The episode concludes with practical advice for publishers and marketers: diversify your monetization stack, prioritize transparency and directness in deals, and keep an eye on both industry giants and emerging niche players to future-proof your business.

For more on Amanda Martin or to explore publisher solutions, visit mediavine.com.
Find more episodes and resources at martechpod.com.