Custom Truck One Source (CTOS) S-4 Registration of securities issued in business combination transactions

Exhibit 23.2

Independent Registered Public Accounting Firm’s Consent

We consent to the inclusion in this Registration Statement of Capitol Investment Corp. IV (the “Company”) on Form S-4, of our report dated March 4, 2019, with respect to our audits of the financial statements of Capitol Investment Corp. IV as of December 31, 2018 and 2017 and for the year ended December 31, 2018 and the period from May 1, 2017 (inception) through December 31, 2017, which report appears in the Proxy Statement/Prospectus, which is part of this Registration Statement. We also consent to the reference to our Firm under the heading “Experts” in such Proxy Statement/Prospectus.

/s/ Marcumllp

Marcumllp

New York, NY

April 11, 2019