Technology profile · Managed partner
Index Exchange
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Composite
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No verified practitioner reviews yet
- Pricing model
- Not disclosed
- Category
- SSP & Ad Supply
- Engagement type
- Managed partner
- HQ
- Canada
Full Detail adds: Case study evidence notes (6) — further down this page.
What it is
Global independent supply-side platform enabling media owners to monetize inventory across web, app, streaming TV, and other formats, and enabling buyers/DSPs to reach that inventory through real-time auctions. Core products: Index Marketplaces (an omnichannel platform for sell-side decisioning, curation, data activation, AI algorithms and carbon measurement built by third parties on top of Index's infrastructure) and Index Cloud (launched in closed beta 2026: a neutral compute environment letting partners run their own models, data and decisioning logic directly inside Index's exchange infrastructure, closer to where impressions originate).
Funding & ownership
Private, venture-backed, independent (not owned by a holding company, DSP, or larger ad-tech conglomerate)
No stock ticker or market cap applies: Index Exchange has remained independent and privately held throughout its 20+ year history, unlike several competitors (Teads, Vistar Media, IAS) that have recently been acquired or taken private. Its independence is itself a distinctive fact in this Verification/SSP competitive set, not just an absence of data.
More detail ↗Last checked 7 Sept 2026
For context only, not financial advice. Private funding data is self-reported or third-party compiled and may be incomplete.
Rating dimensions · Managed partner
- Account management
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- Scale across markets
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- Support responsiveness
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- Reporting quality
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These are the dimensions this vendor will be scored on. Nothing is scored until a verified practitioner submits one.
Product architecture
- 01Exchange Standards: Index groups its core commitments under Exchange Efficiency, Exchange Quality and Exchange Transparency as named, distinct pillars of the platform rather than marketing adjectives alone.
- 02Index Marketplaces (launched 2024): an omnichannel platform for sell-side decisioning that lets third parties build atop Index's auction infrastructure for curation, data activation, AI algorithms, and carbon measurement, among other use cases.
- 03Index Cloud (closed beta launched 2026): a neutral compute environment allowing partners to deploy their own models, data and logic directly inside the exchange, positioned as avoiding the latency, signal loss, cost premiums and overhead of running decisioning outside the auction in the public cloud.
- 04Addressability Portfolio, Channels and Formats (including Streaming TV and Online Video), Data and Analytics, and programmatic Deals: named as separate product lines on Index's own site navigation.
- 05Client Audit Logs (CALs), launched 2019: log-level transaction reporting Index describes as a receipt for every transaction, an early and still-cited transparency commitment predating most competitors' similar offerings.
Distinctive asset
One of very few large SSPs that has remained independent for over 20 years rather than being folded into a DSP, holding company, or measurement conglomerate. Real, verifiable technical firsts: co-authored the original OpenRTB specification (2011) and OpenRTB 2.6 for streaming TV ad podding (2022), pioneered and open-sourced header bidding via the Index Wrapper (2016), and eliminated made-for-advertising (MFA) inventory sitewide (2024) ahead of most competitors publicly doing the same.
Market coverage
Global operations with teams across North America, EMEA and APAC per Index's own About page; specific office count and country breakdown not itemized on the pages reviewed. Headquartered in Toronto with a significant New York office.
Case studies
The Guardian
Transparent Dynamic Take Rates drove a 4% boost in revenue and a 45% increase in impressions served.
Vendor-reported, not independently verified
A+E Global Media, via ad podding
Ad podding implementation boosted monetization by 19%.
Vendor-reported, not independently verified
Vyde, for a global automotive brand, via Index Marketplaces
176% increase in active engagement time.
Vendor-reported, not independently verified
WPP Media and Vidium, via Index Marketplaces
33% lift in purchase intent for video ad performance.
Vendor-reported, not independently verified
A major retailer, with inPowered AI, via sell-side decisioning and Index Marketplaces
75% drop in cost per visit.
Vendor-reported, not independently verified
PMG and IRIS.TV, via Index Marketplaces, contextual data in streaming TV
9X increase in brand preference.
Vendor-reported, not independently verified
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