DYCOM INDUSTRIES INC

Disclosure Controls and Procedures

The Company carried out an evaluation under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and its Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”)) as of August 1, 2026, the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, the Chief Executive Officer and Chief Financial Officer concluded that, as of August 1, 2026, the Company’s disclosure controls and procedures are effective to provide reasonable assurance that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is (1) recorded, processed, summarized and reported within the time periods specified by the Securities and Exchange Commission’s rules and forms, and

(2) accumulated and communicated to the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, in a manner that allows timely decisions regarding required disclosure.

The SEC’s general guidance permits the exclusion of an assessment of the effectiveness of a registrant’s disclosure controls and procedures as they relate to its internal control over financial reporting for an acquired business during the first year following such acquisition if, among other circumstances and factors, there is not adequate time between the acquisition date and the date of assessment. As previously noted in this Form 10-Q, we acquired National Technology Integrators during the second quarter of fiscal 2027. This acquisition represents approximately 1.8% of our total assets (excluding goodwill and other identifiable intangibles, which are included within the scope of the assessment) as of August 1, 2026 and 0.6% of our total contract revenues for the six months ended August 1, 2026. See Note 5, Acquisitions, of the Notes to the Condensed Consolidated Financial Statements for additional information regarding the acquisition. Management’s assessment and conclusion on the effectiveness of the Company’s disclosure controls and procedures as of August 1, 2026 excludes an assessment of internal control over financial reporting of National Technology Integrators.

Changes in Internal Control Over Financial Reporting

We are in the process of implementing an Enterprise Resource Planning (ERP) system to upgrade and standardize our information technology systems. This implementation is expected to occur in phases over the next two years. In the current quarter, we completed the deployment of several modules of the ERP. We have made changes to our internal control over financial reporting to address the related processes and systems. We will continue to evaluate any further changes in our internal control over financial reporting over the course of the implementation of the new ERP and other related systems. There were no other changes in the Company’s internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the Company’s most recent fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II - OTHER INFORMATION