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

January 23, 2014

(Date of Earliest Event Reported)

West Corporation

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation)

11808 Miracle Hills Drive, Omaha, Nebraska 68154

(Address of principal executive offices)

Registrant’s telephone number, including area code: (402) 963-1200

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 (see General instruction A.2. below):

Item 1.01 Entry into a Material Definitive Agreement.

On January 23, 2014, West Corporation (“West” or the “Company”) issued a press release announcing lender consent to an amendment to its Credit Agreement (as defined below). A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated by reference in its entirety.

On January 24, 2014, West, certain domestic subsidiaries of West, as subsidiary borrowers, Wells Fargo Bank, National Association (“Wells Fargo”), as administrative agent, and the various lenders party thereto modified the Company’s senior secured credit facilities (“Senior Secured Credit Facilities”) by entering into Amendment No. 4 to Amended and Restated Credit Agreement (the “Fourth Amendment”), amending the Company’s Amended and Restated Credit Agreement, dated as of October 5, 2010, by and among West, Wells Fargo, as administrative agent, and the various lenders party thereto, as lenders (as previously amended by Amendment No. 1 to Amended and Restated Credit Agreement, dated as of August 15, 2012, Amendment No. 2 to Amended and Restated Credit Agreement, dated as of October 24, 2012, and Amendment No. 3 to Amended and Restated Credit Agreement, dated as of February 20, 2013, the “Credit Agreement” and, as amended by the Fourth Amendment, the “Amended Credit Agreement”).

The Amended Credit Agreement provides for a reduction in the applicable margins and interest rate floors of all term loans. As of the effective date of the Fourth Amendment, the Company had outstanding the following senior secured term loans:

The Amended Credit Agreement also provides for interest rate floors applicable to the Term Loans. The interest rate floors are 0.75% for LIBOR rate loans and 1.75% for base rate loans.

The Amended Credit Agreement also provides for a soft call option applicable to the Term Loans. The soft call option provides for a premium equal to 1.0% of the amount of the repricing payment in the event that, on or prior to the six-month anniversary of the effective date of the Fourth Amendment, West or the Subsidiary Borrowers (as defined in the Amended Credit Agreement) enter into certain repricing transactions.

In connection with the Fourth Amendment, the Company incurred refinancing expenses of approximately $5.6 million of fees and expenses.

The foregoing description of the Fourth Amendment does not purport to be complete and is qualified in its entirety by reference to the full text of the Fourth Amendment, which is filed as Exhibit 10.1 to this current report on Form 8-K.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth in Item 1.01 is incorporated by reference into this Item 2.03.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

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SIGNATURES

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.

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Exhibit Index

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