Companies, monthly, on the fixed panel of sites crawled since 2020of 54,527,857 in the indexlanding 12 Sept 2026
21,090 at Sept 26; 26,232 twelve months earlier, -5,142, -19.6% on the fixed panel; the series starts January 2021 because the panel is anchored at 31 Dec 2020
| Month | Companies | Observed on the panel |
|---|---|---|
| 2021-01 | 22,061 | 8,752 |
| 2021-02 | 22,061 | 8,752 |
| 2021-03 | 22,061 | 8,752 |
| 2021-04 | 22,061 | 8,752 |
| 2021-05 | 22,062 | 8,752 |
| 2021-06 | 22,062 | 8,752 |
| 2021-07 | 22,063 | 8,753 |
| 2021-08 | 22,081 | 8,760 |
| 2021-09 | 22,088 | 8,763 |
| 2021-10 | 22,094 | 8,765 |
| 2021-11 | 22,101 | 8,768 |
| 2021-12 | 22,108 | 8,771 |
| 2022-01 | 22,115 | 8,773 |
| 2022-02 | 22,122 | 8,776 |
| 2022-03 | 22,131 | 8,780 |
| 2022-04 | 22,140 | 8,783 |
| 2022-05 | 22,149 | 8,787 |
| 2022-06 | 22,159 | 8,791 |
| 2022-07 | 22,168 | 8,795 |
| 2022-08 | 22,176 | 8,798 |
| 2022-09 | 22,170 | 8,795 |
| 2022-10 | 22,174 | 8,797 |
| 2022-11 | 22,179 | 8,799 |
| 2022-12 | 22,183 | 8,800 |
| 2023-01 | 22,187 | 8,802 |
| 2023-02 | 22,191 | 8,804 |
| 2023-03 | 22,196 | 8,806 |
| 2023-04 | 23,556 | 9,345 |
| 2023-05 | 23,561 | 9,347 |
| 2023-06 | 23,567 | 9,350 |
| 2023-07 | 23,571 | 9,351 |
| 2023-08 | 23,577 | 9,354 |
| 2023-09 | 23,583 | 9,356 |
| 2023-10 | 23,586 | 9,357 |
| 2023-11 | 23,590 | 9,359 |
| 2023-12 | 23,594 | 9,360 |
| 2024-01 | 23,597 | 9,361 |
| 2024-02 | 23,603 | 9,364 |
| 2024-03 | 24,124 | 9,571 |
| 2024-04 | 24,380 | 9,672 |
| 2024-05 | 23,279 | 9,235 |
| 2024-06 | 23,537 | 9,338 |
| 2024-07 | 23,790 | 9,438 |
| 2024-08 | 24,072 | 9,550 |
| 2024-09 | 24,582 | 9,752 |
| 2024-10 | 25,229 | 10,009 |
| 2024-11 | 25,593 | 10,153 |
| 2024-12 | 25,854 | 10,257 |
| 2025-01 | 26,226 | 10,404 |
| 2025-02 | 26,498 | 10,512 |
| 2025-03 | 26,768 | 10,619 |
| 2025-04 | 26,581 | 10,545 |
| 2025-05 | 26,547 | 10,532 |
| 2025-06 | 26,618 | 10,560 |
| 2025-07 | 26,622 | 10,562 |
| 2025-08 | 26,628 | 10,564 |
| 2025-09 | 26,232 | 10,407 |
| 2025-10 | 25,603 | 10,157 |
| 2025-11 | 24,837 | 9,853 |
| 2025-12 | 24,354 | 9,662 |
| 2026-01 | 23,979 | 9,513 |
| 2026-02 | 23,580 | 9,355 |
| 2026-03 | 23,295 | 9,242 |
| 2026-04 | 23,087 | 9,159 |
| 2026-05 | 22,772 | 9,034 |
| 2026-06 | 22,538 | 8,941 |
| 2026-07 | 22,102 | 8,768 |
| 2026-08 | 21,657 | 8,592 |
| 2026-09 | 21,090 | 8,367 |
Shares of the same 21,091each row a different wholelanding 12 Sept 2026
Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, AppNexus is rank 3 of 24 technologies in Demand-side platforms.
Open as a segment
21,091 companies; add a country, a sector or a band on the segment page. Counting is free.
As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026
Programmatic advertising and ad exchange platform formerly known as AppNexus, now part of Xandr at Microsoft.
AppNexus is a programmatic advertising platform offering ad exchange, ad serving, and tools for buyers and sellers. It operates under Xandr within Microsoft and is used by advertisers, agencies, and publishers for real-time bidding and campaign management.
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