Exhibit 16.1

  GRANT THORNTON LLP 231 S. Bemiston Ave. Suite 600 St. Louis, MO, 63105   D +1 832 476 3600 F +1 713 655 8741     January 17, 2025   U.S. Securities and Exchange Commission Office of the Chief Accountant 100 F Street, NE Washington, DC 20549   Re: SailPoint Parent, LP   Dear Sir or Madam:   We have read the “Change in Auditor” section in the Form S-1 of SailPoint Parent, LP and agree with the statements concerning our Firm contained therein. We have no basis to agree or disagree with other statements of the registrant contained therein.   Very truly yours,   /s/ GRANT THORNTON LLP

  GT.COM   Grant Thornton LLP is a U.S. member firm of Grant Thornton International Ltd (GTIL). GTIL and each of its member firms are separate legal entities and are not a worldwide partnership.