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Subcategory answer

Supply-side platforms

190,255

companies run at least one of the 24 technologies in it, 0.35% of 54,527,857 in the index. Landing 12 Sept 2026.

Publisher monetization platforms for managing, packaging, and selling ad inventory, including mediation.

Share of the subcategory by month

PubMatic 18.4%Other 75.7%
PubMaticTripleLiftOther

Share of companies running any technology in this subcategory, monthlyof 190,255 companies with any of themlanding 12 Sept 2026

Each month is drawn as 100%, so the bands are shares and not counts; a company running two of these technologies is counted in both, and everything past the fourth is folded into Other. The series starts January 2021 because the panel is anchored at 31 Dec 2020

The 207 numbers in this chart
MonthPubMaticTripleLiftOther
2021-0135.1%5.8%59.1%
2021-0235.1%5.8%59.1%
2021-0335.1%5.8%59.1%
2021-0435.1%5.8%59.1%
2021-0535.1%5.8%59.1%
2021-0635.1%5.8%59.1%
2021-0735.1%5.8%59.1%
2021-0835.1%5.8%59.1%
2021-0935.1%5.8%59.1%
2021-1035.1%5.8%59.1%
2021-1135.1%5.8%59.1%
2021-1235.1%5.8%59.1%
2022-0135.1%5.8%59.1%
2022-0235.1%5.8%59.1%
2022-0335.1%5.8%59.1%
2022-0435.1%5.8%59.1%
2022-0535.1%5.8%59.1%
2022-0635.1%5.8%59.1%
2022-0735.1%5.8%59.1%
2022-0835.1%5.8%59.1%
2022-0935.1%5.8%59.1%
2022-1035.1%5.8%59.1%
2022-1135.1%5.8%59.1%
2022-1235.1%5.8%59.1%
2023-0135.1%5.8%59.1%
2023-0235.1%5.8%59.1%
2023-0335.1%5.8%59.1%
2023-0435.1%5.8%59.1%
2023-0535.1%5.8%59.1%
2023-0635.1%5.8%59.1%
2023-0735.1%5.8%59.1%
2023-0835.1%5.8%59.1%
2023-0935.1%5.8%59.1%
2023-1035.1%5.8%59.1%
2023-1130.3%6.1%63.6%
2023-1230.3%6.1%63.6%
2024-0130.3%6.1%63.6%
2024-0230.3%6.1%63.6%
2024-0330.3%6.1%63.6%
2024-0430.3%6.1%63.6%
2024-0530.3%6.1%63.6%
2024-0630.3%6.1%63.6%
2024-0730.3%6.1%63.6%
2024-0830.3%6.1%63.6%
2024-0930.3%6.1%63.6%
2024-1027.9%6.3%65.8%
2024-1127.9%6.3%65.8%
2024-1227.9%6.3%65.8%
2025-0127.9%6.3%65.8%
2025-0227.9%6.3%65.8%
2025-0327.7%6.4%66.0%
2025-0425.5%6.5%68.0%
2025-0520.9%6.8%72.2%
2025-0619.8%6.9%73.3%
2025-0719.8%6.9%73.3%
2025-0819.6%7.0%73.4%
2025-0919.6%7.0%73.4%
2025-1019.6%7.0%73.4%
2025-1119.5%7.0%73.5%
2025-1219.5%7.0%73.5%
2026-0119.1%7.0%73.9%
2026-0219.0%6.9%74.1%
2026-0318.4%5.9%75.7%
2026-0418.4%5.9%75.7%
2026-0518.4%5.9%75.7%
2026-0618.4%5.9%75.7%
2026-0718.4%5.9%75.7%
2026-0818.4%5.8%75.7%
2026-0918.4%5.8%75.7%

The technologies ranked in Supply-side platforms

Companiesof 190,255 with any of themlanding 12 Sept 2026

#
Technology
Vendor
Companies
Share
1
PubMatic
8,680
4.6%
2
TripleLift, Inc.
1,364
0.72%
3
ArcSpan
96
0.05%
4
Magnite, Inc.
73
0.04%
5
Snigel
65
0.03%
6
Onetag
64
0.03%
7
MonetizeMore
31
0.02%
8
FirstImpression
23
0.01%
9
Yieldlab
18
no share
10
Assertive Yield
13
no share
11
Automatad
11
no share
12
Sharethrough
11
no share
13
Admost
8
no share
14
Geniee, Inc.
6
no share
15
Zeus Technology
5
no share
16
UNITED, Inc.
0
no share

16 of 24 technologiesa company running two of them is counted in both, so the shares do not sum to 100%under 20 companies no share is published

8 of the 10 most detected technologies here sit under the publication gate on detector quality of 0.90, so they are listed rather than ranked: Amazon Publisher Services 178,290, Rubicon Project 3,683, Ezoic 2,414, Marfeel 1,267, Geniee 259, Sharethrough 224, Vidazoo 191, Admixer 168.