| Name | Relationship | Address | Signature | Signature date | CIK | 
|---|---|---|---|---|---|
| Wegner Alpana | Chief Financial Officer | C/O INTEGRAL AD SCIENCE HOLDING CORP., 12 E. 49TH STREET, 20TH FLOOR, NEW YORK | /s/ Yossi Almani, by Power of Attorney | 2025-06-18 | 0001822516 | 
No securities are beneficially owned.
Exhibit 24 - Power of Attorney