Company: MTZ
Filing Date: 2025-02-28
Form Type: S-3ASR
Source: 0001193125-25-042499
Chunk: 45

Company: MASTEC INC
Filing Date: 2025-02-28
Form: S-3ASR
Chunk 45
---
 segment and a December acquisition in the Pipeline
Infrastructure segment) because they were acquired by the Company in purchase business combinations during 2024) of PricewaterhouseCoopers LLP, an independent registered public accounting firm, given on the authority of said firm as experts in
auditing and accounting.

The financial statements of MasTec, Inc., except IEA Energy Services, LLC (“IEA LLC”) (IEA LLC is a wholly-owned
subsidiary of MasTec, Inc.), as of December 31, 2023 and for each of the two years in the period ended December 31, 2023 incorporated in this Prospectus by reference to the Annual Report on Form 10-K for the year ended December 31, 2024,
have been so incorporated in reliance on the report of BDO USA, P.C., an independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

The financial statements of IEA LLC as of December 31, 2023 and for the year ended December 31, 2023 (consolidated with those of MasTec, Inc., but not
presented separately or incorporated by reference herein) have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in its report incorporated by reference in this Prospectus by reference to the
Annual Report on Form 10-K for the year ended December 31, 2024.

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WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and special reports, proxy statements and other information with the SEC. The SEC maintains an internet site that contains reports,
proxy and information statements, and other information that we file electronically with the SEC and which are available at the SEC’s website at: http://www.sec.gov. In addition, our SEC filings and other information about our company are
available on our internet website: www.mastec.com. Please note that our internet address is included in this prospectus as an inactive textual reference and the information included on our website is not incorporated by reference into this
prospectus and should not be considered part of this prospectus.

This prospectus is part of a registration statement that we filed with the SEC. The
registration statement contains more information than this prospectus regarding us and our common stock, including certain exhibits. You can obtain a copy of the registration statement from the SEC’s website listed above.

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INCORPORATION OF CERTAIN DOCUMENTS BY REF