June 25, 2021
VIA EDGAR
United States Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549-1090
Attention: Alexandra Barone
Kathleen Collins
Rebekah Lindsey
Jan Woo
Re: Integral Ad Science Holding Corp.
Registration Statement on Form S-1
Originally Filed June 4, 2021
CIK: 0001842718
Ladies and Gentlemen:
Integral Ad Science Holding Corp., a Delaware corporation (the “Company”), hereby requests acceleration of the effective date of its Registration Statement on Form S-1, File No. 333-256770, as amended (the “Registration Statement”), to 4:00 p.m., Eastern time, on June 29, 2021 or as soon thereafter as practicable.
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Please contact Robert E. Goedert of Kirkland & Ellis LLP, special counsel to the Company, at (312) 862-7317, as soon as the Registration Statement has been declared effective, or if you have any other questions or concerns regarding this matter.
| Sincerely, | ||
| INTEGRAL AD SCIENCE HOLDING CORP. | ||
| By: | /s/ Micah Nessan | |
| Name: | Micah Nessan | |
| Title: | General Counsel and Secretary | |