United States securities and exchange commission logo September 21, 2020 Charlotte MacVane General Counsel ATI Intermediate Holdings, LLC 3901 Midway Place NE Albuquerque, New Mexico 87109 Re: ATI Intermediate Holdings, LLC Amendment No. 1 to Draft Registration Statement on Form S-1 Submitted September 14, 2020 CIK 0001820721 Dear Ms. MacVane: We have reviewed your amended draft registration statement and have the following comments. In some of our comments, we may ask you to provide us with information so we may better understand your disclosure. Please respond to this letter by providing the requested information and either submitting an amended draft registration statement or publicly filing your registration statement on EDGAR. If you do not believe our comments apply to your facts and circumstances or do not believe an amendment is appropriate, please tell us why in your response. After reviewing the information you provide in response to these comments and your amended draft registration statement or filed registration statement, we may have additional comments. Amended Draft Registration Statement on Form S-1 Executive Compensation Narrative Disclosure to Summary Compensation Table Employment Offer Letters, page 89 1. Please file the employment offer letters as exhibits to the registration statement. Refer to Item 601(b)(10)(iii)(A) of Regulation S-K. Charlotte MacVane FirstName LastNameCharlotte MacVane ATI Intermediate Holdings, LLC Comapany 21, September NameATI 2020 Intermediate Holdings, LLC September Page 2 21, 2020 Page 2 FirstName LastName You may contact Beverly Singleton at 202-551-3328 or Martin James at 202-551-3671 if you have questions regarding comments on the financial statements and related matters. Please contact Erin Purnell at 202-551-3454 or Geoffrey Kruczek at 202-551-3641 with any other questions. Sincerely, Division of Corporation Finance Office of Manufacturing cc: Michael Kim