UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 20, 2013

PIKE CORPORATION

(Exact Name of Registrant as Specified in its Charter)

100 Pike Way

Mount Airy, NC 27030

(Address of Principal Executive Offices) (Zip Code)

Registrant’s telephone number, including area code: (336) 789-2171

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

(a) The Audit Committee of the Board of Directors (the “Audit Committee”) of Pike Corporation (the “Company”) recently conducted a competitive process to select an audit firm to serve as the Company’s independent registered public accounting firm for the fiscal year ending June 30, 2014. As a result of this process and after careful deliberation, on November 20, 2013, the Audit Committee approved the engagement of KPMG LLP (“KPMG”) as the Company’s independent registered public accounting firm for the fiscal year ending June 30, 2014, effective immediately, and thereby dismissed Ernst & Young LLP (“Ernst &Young”) from that role.

The reports of Ernst & Young on the Company’s consolidated financial statements as of and for the fiscal years ended June 30, 2013 and 2012 did not contain an adverse opinion or a disclaimer of opinion, and were not qualified or modified as to uncertainty, audit scope or accounting principles. During the fiscal years ended June 30, 2013 and 2012, and the subsequent interim period through November 20, 2013, there were no (i) “disagreements” (as that term is defined in Item 304(a)(1)(iv) of Regulation S-K) with Ernst & Young on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which disagreements, if not resolved to Ernst & Young’s satisfaction, would have caused Ernst & Young to make reference to the subject matter thereof in its reports for such fiscal years and interim period, or (ii) “reportable events” as that term is described in Item 304(a)(1)(v) of Regulation S-K.

The Company provided Ernst & Young with a copy of the disclosures it is making in this Current Report on Form 8-K and requested that Ernst & Young furnish a letter addressed to the Securities and Exchange Commission stating whether it agrees with such disclosures. A copy of Ernst & Young’s letter, dated November 22, 2013, is filed herewith as Exhibit 16.1.

(b) During the fiscal years ended June 30, 2013 and 2012, and the subsequent interim period through November 20, 2013, neither the Company nor anyone on its behalf consulted with KPMG regarding (i) the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s financial statements, and no written report or oral advice was provided to the Company that KPMG concluded was an important factor considered by the Company in reaching a decision as to any accounting, auditing or financial reporting issue; or (ii) any matter that was either the subject of a “disagreement” (as that term is defined in Item 304(a)(1)(iv) of Regulation S-K) or a “reportable event” (as that term is described in Item 304(a)(1)(v) of Regulation S-K).

(d) Exhibits

The following exhibit is filed in accordance with the provisions of Item 601 of Regulation S-K:

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.

EXHIBITS

CURRENT REPORT

ON

FORM 8-K

PIKE CORPORATION

EXHIBIT INDEX