Companies, monthly, on the fixed panel of sites crawled since 2020of 54,527,857 in the indexlanding 12 Sept 2026
1,493 at Sept 26; 1,074 twelve months earlier, +419, +39.0% 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 | 0 | 0 |
| 2021-02 | 0 | 0 |
| 2021-03 | 0 | 0 |
| 2021-04 | 0 | 0 |
| 2021-05 | 0 | 0 |
| 2021-06 | 0 | 0 |
| 2021-07 | 0 | 0 |
| 2021-08 | 0 | 0 |
| 2021-09 | 0 | 0 |
| 2021-10 | 0 | 0 |
| 2021-11 | 0 | 0 |
| 2021-12 | 0 | 0 |
| 2022-01 | 0 | 0 |
| 2022-02 | 0 | 0 |
| 2022-03 | 0 | 0 |
| 2022-04 | 0 | 0 |
| 2022-05 | 0 | 0 |
| 2022-06 | 0 | 0 |
| 2022-07 | 0 | 0 |
| 2022-08 | 0 | 0 |
| 2022-09 | 0 | 0 |
| 2022-10 | 0 | 0 |
| 2022-11 | 0 | 0 |
| 2022-12 | 0 | 0 |
| 2023-01 | 0 | 0 |
| 2023-02 | 0 | 0 |
| 2023-03 | 0 | 0 |
| 2023-04 | 148 | 50 |
| 2023-05 | 196 | 66 |
| 2023-06 | 244 | 82 |
| 2023-07 | 292 | 98 |
| 2023-08 | 340 | 114 |
| 2023-09 | 387 | 129 |
| 2023-10 | 435 | 146 |
| 2023-11 | 483 | 162 |
| 2023-12 | 531 | 178 |
| 2024-01 | 579 | 194 |
| 2024-02 | 626 | 209 |
| 2024-03 | 688 | 230 |
| 2024-04 | 744 | 249 |
| 2024-05 | 652 | 218 |
| 2024-06 | 661 | 221 |
| 2024-07 | 670 | 224 |
| 2024-08 | 680 | 228 |
| 2024-09 | 694 | 232 |
| 2024-10 | 735 | 246 |
| 2024-11 | 768 | 257 |
| 2024-12 | 798 | 267 |
| 2025-01 | 829 | 277 |
| 2025-02 | 859 | 287 |
| 2025-03 | 889 | 297 |
| 2025-04 | 905 | 303 |
| 2025-05 | 925 | 310 |
| 2025-06 | 972 | 325 |
| 2025-07 | 1,016 | 340 |
| 2025-08 | 1,063 | 356 |
| 2025-09 | 1,074 | 359 |
| 2025-10 | 1,079 | 361 |
| 2025-11 | 1,059 | 354 |
| 2025-12 | 1,047 | 350 |
| 2026-01 | 1,045 | 350 |
| 2026-02 | 1,182 | 396 |
| 2026-03 | 1,343 | 449 |
| 2026-04 | 1,371 | 459 |
| 2026-05 | 1,404 | 470 |
| 2026-06 | 1,445 | 484 |
| 2026-07 | 1,456 | 487 |
| 2026-08 | 1,474 | 493 |
| 2026-09 | 1,493 | 500 |
Shares of the same 1,493each 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, Index Exchange is rank 4 of 19 technologies in Ad exchanges.
Open as a segment
1,493 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 exchange and SSP operated by Index Exchange.
Index Exchange provides a supply-side platform and ad exchange connecting publishers with demand in real time. Publishers integrate it for header bidding and monetization.
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