Item 2.01 Completion of Acquisition or Disposition of Assets
This Form 8-K/A amends the Current Report on Form 8-K dated November 14, 2007 of ABM Industries Incorporated ("ABM") reporting the completion of its acquisition of OneSource Services Inc. ("OneSource"). The sole purpose of this amendment is to provide the historical financial statements of OneSource required by Item 9.01(a) and the unaudited pro forma financial information required by Item 9.01(b).
Item 9.01 Financial Statements and Exhibits.
(a) Financial Statements of Businesses Acquired.

The audited Consolidated Balance Sheet of OneSource as of March 31, 2007 and the related audited Consolidated Statement of Income, Movements in Shareholders' Equity, and Cash Flows for the year ended March 31, 2007 are filed as Exhibit 99.1 to this amendment and incorporated herein by this reference.
The unaudited Consolidated Balance Sheet of OneSource as of September 30, 2007 and the related unaudited Consolidated Statements of Income and Cash Flows for the six months ended September 30, 2007 and 2006 are filed as Exhibit 99.2 to this amendment and incorporated herein by this reference.
(b) Pro Forma Financial Information.

The unaudited Pro Forma Condensed Combined Balance Sheet of ABM and OneSource at October 31, 2007 and the related unaudited Pro Forma Condensed Combined Statement of Income for the year ended October 31, 2007 are filed as Exhibit 99.3 to this amendment and incorporated herein by this reference.
(c) Exhibits.

Exhibit 23.1 Consent of Independent Accountants

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