Best Supply Side Toolsin ChatGPT

Industry‑dominant publisher ad server + exchange used by the vast majority of large publishers for inventory management, unified auctions, reporting and yield control. (widely cited in industry market share and analyst reporting).

Rank HistoryAVG#1
Serplock Rating65.7
Share of Voice9.5%
Consistency59%
Average AI Rank#1

Amazon’s supply‑side suite (Unified Ad Marketplace, TAM, APS services) — strong incremental demand and identity/addressability features for publishers; named a Leader in recent SSP analyst coverage.

Rank HistoryAVG#3.7
Serplock Rating65.7
Share of Voice9.0%
Consistency61%
Average AI Rank#3.7

Publisher‑first SSP with strong header‑bidding, omnichannel (web/app/CTV) capabilities and sizable global demand.

Rank HistoryAVG#3.5
Serplock Rating59.3
Share of Voice8.6%
Consistency74%
Average AI Rank#3.5

Independent sell‑side platform strong in video and CTV after the Rubicon/Telaria/SpotX lineage; major global programmatic footprint.

Rank HistoryAVG#2.7
Serplock Rating60.5
Share of Voice8.1%
Consistency60%
Average AI Rank#2.7

Transparent, header‑bidding focused exchange/SSP used widely by premium publishers for low‑latency yield management.

Rank HistoryAVG#4.8
Serplock Rating57.1
Share of Voice7.6%
Consistency60%
Average AI Rank#4.8

Independent SSP and exchange known for inventory quality controls, fraud mitigation and header‑bidding support.

Rank HistoryAVG#6
Serplock Rating48.8
Share of Voice7.1%
Consistency36%
Average AI Rank#6

Comcast‑owned premium video/CTV monetization platform focused on premium publisher partnerships and TV‑scale buyers.

Rank HistoryAVG#8.4
Serplock Rating46.4
Share of Voice6.7%
Consistency33%
Average AI Rank#8.4

Enterprise sell‑side and marketplace technology (AppNexus lineage) integrated into Microsoft’s advertising stack; used by publishers for advanced programmatic workflows and direct deals.

Rank HistoryAVG#8
Serplock Rating71.1
Share of Voice6.2%
Consistency61%
Average AI Rank#8

Native and programmatic creative + SSP capabilities, known for viewable native/video ad formats.

Rank HistoryAVG#8.9
Serplock Rating36.5
Share of Voice5.7%
Consistency26%
Average AI Rank#8.9

Global out‑stream video marketplace and SSP, widely used for video and native monetization across publishers.

Rank HistoryAVG#10.5
Serplock Rating40.5
Share of Voice5.2%
Consistency34%
Average AI Rank#10.5

Mobile/app‑focused SSP with global demand coverage and a strong presence in in‑app monetization.

Rank HistoryAVG#11.8
Serplock Rating47.8
Share of Voice4.8%
Consistency61%
Average AI Rank#11.8

Criteo’s publisher monetization solutions (including header‑bidding and RTB connectivity) leverage retail and conversion data.

Rank HistoryAVG#12.1
Serplock Rating54.9
Share of Voice4.3%
Consistency48%
Average AI Rank#12.1

Publisher monetization suite and SSP focused on independent publishers and content creators.

Rank HistoryAVG#13.9
Serplock Rating52.7
Share of Voice3.8%
Consistency76%
Average AI Rank#13.9

Native inventory and programmatic SSP capabilities (Sharethrough) and Equativ (formerly Smart AdServer) provide integrated publisher tools across Europe.

Rank HistoryAVG#15.2
Serplock Rating31.9
Share of Voice3.3%
Consistency35%
Average AI Rank#15.2

Adform provides an integrated advertising platform that includes an SSP/ad server and ID‑first solutions for publishers, popular in EMEA and for programmatic addressability initiatives.

Rank HistoryAVG#12.8
Serplock Rating51.0
Share of Voice2.9%
Consistency58%
Average AI Rank#12.8

Contextual advertising and programmatic supply capabilities with an SSP/marketplace for brand‑safe inventory.

Rank HistoryAVG#16.4
Serplock Rating30.8
Share of Voice2.4%
Consistency25%
Average AI Rank#16.4

Mobile ad platform with SSP capabilities and extensive in‑app reach, especially in Asia and emerging markets.

Rank HistoryAVG#15.5
Serplock Rating39.5
Share of Voice1.9%
Consistency36%
Average AI Rank#15.5

Publisher monetization partner/SSP alternative focused on direct-sell optimisation and programmatic yield — widely adopted by independent publishers (high publisher count per industry crawls).

Rank HistoryAVG#18
Serplock Rating47.5
Share of Voice1.4%
Consistency100%
Average AI Rank#18

Experience and attention‑focused SSP and ad unit provider that optimizes for attention metrics and premium demand.

Rank HistoryAVG#17.1
Serplock Rating27.4
Share of Voice1.0%
Consistency36%
Average AI Rank#17.1

Addressability‑focused SSP and publisher platform that emphasizes cookieless identity, audience curation and supply‑side signal activation.

Rank HistoryAVG#19
Serplock Rating31.8
Share of Voice0.5%
Consistency34%
Average AI Rank#19
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