Exhibit 99.5

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

During May, June and July of 2015, Digital Realty Trust, Inc. (together with its consolidated subsidiaries, the “Company”) entered into the following transactions, which have been included in the accompanying Unaudited Pro Forma Condensed Combined Financial Information as discussed more fully below.

Offering of 3.950% Notes due 2022

On June 23, 2015, Digital Realty Trust, L.P., a Maryland limited partnership, of which the Company is the sole general partner (the “Operating Partnership”), issued $500.0 million aggregate principal amount of its 3.950% notes due 2022 in an underwritten public offering (the “Notes Offering”). The Operating Partnership intends to use the net proceeds from the Notes Offering to fund certain eligible green projects, including the development and redevelopment of such projects. Pending such uses, the Operating Partnership temporarily repaid borrowings under its global revolving credit facility.

Redemption of 4.50% Notes due 2015

On May 26, 2015, the Operating Partnership redeemed the entire outstanding principal amount of its 4.50% notes due 2015 at a redemption price of 100% of the principal amount of the notes plus accrued and unpaid interest thereon up to, but excluding, the redemption date (the “Notes Redemption”).

Pending Telx Acquisition

On July 13, 2015, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Telx Holdings, Inc. (“Telx”), and BSR LLC, as representative of the sellers, pursuant to which the Company agreed to acquire Telx for approximately $1.886 billion in cash, excluding transaction related expenses, subject to customary closing adjustments (the “Telx Acquisition”). The Merger Agreement contains customary representations and warranties as well as covenants by each of the parties. The Telx Acquisition is expected to close in the third quarter of 2015, subject to the satisfaction of closing conditions, including among others the continuing accuracy of representations and warranties and compliance with covenants and agreements in the Merger Agreement.

On July 13, 2015, in connection with the execution of the Merger Agreement, the Company entered into a commitment letter, pursuant to which the initial commitment parties agreed to provide a senior unsecured bridge loan facility (the “Bridge Facility”) in the original principal amount of $1.85 billion to fund the Telx Acquisition.

Forward Equity Sale

On July 14, 2015, the Company commenced an underwritten public offering of 10,500,000 shares of its common stock, all of which are being offered in connection with forward sale agreements the Company intends to enter into with certain financial institutions acting as forward purchasers (the “Forward Equity Sale”). The forward purchasers are each expected to borrow and sell approximately 3,500,000 shares of the Company’s common stock. Pursuant to the terms of the forward sale agreements, and subject to its right to elect cash or net share settlement, the Company intends to sell, upon physical settlement of such forward sale agreements, an aggregate of 10,500,000 shares of its common stock to the forward purchasers. In addition, the Company expects to grant the underwriters an option to purchase an additional 1,575,000 shares of its common stock to cover overallotments, if any. The accompanying Unaudited Pro Forma Condensed Combined Financial Information assumes that the underwriters do not exercise this overallotment option.

The Company will not initially receive any proceeds from the sale of its common stock by the forward purchasers. Assuming full physical settlement of the forward sale agreements (by the delivery of shares of the Company’s common stock) at an initial

forward sale price of $68.42 per share (based upon an assumed initial forward sale price of $68.42 per share, which was the last reported sale price of the Company’s common stock on the New York Stock Exchange on July 13, 2015) and that the underwriters have not exercised their option to purchase additional shares, the Company expect to receive net proceeds of approximately $690.0 million (after deducting fees and estimated expenses related to the forward sale agreements), subject to certain adjustments pursuant to the forward sale agreements, upon settlement of the forward sale agreements, which settlement the Company expects will occur prior to or concurrently with the consummation of the Telx Acquisition. The Company intends to use the net proceeds from the Forward Equity Sale to fund a portion of the Telx Acquisition.

The Notes Offering, the Notes Redemption, the Telx Acquisition, a draw on the Bridge Facility and the Forward Equity Sale are collectively referred to in the Unaudited Pro Forma Condensed Combined Financial Information as the “Transactions.”

The following Unaudited Pro Forma Condensed Combined Balance Sheet as of March 31, 2015 and the Unaudited Pro Forma Condensed Combined Income Statement for the three months ended March 31, 2015 and for the year ended December 31, 2014 have been derived from the historical consolidated financial statements of the Company and Telx, as adjusted to give effect to the Transactions, and are intended to reflect the impact of the Transactions on the Company on a pro forma basis as of and for the periods indicated. The Unaudited Pro Forma Condensed Combined Financial Information does not give effect to any potential additional permanent financing of the Telx Acquisition.

The Unaudited Pro Forma Condensed Combined Financial Information has been prepared by the Company using the acquisition method of accounting in accordance with Financial Accounting Standards Board Accounting Standards Codification (“ASC”) Topic 805, Business Combinations. The fair value of identifiable tangible and intangible assets acquired and liabilities assumed from the Telx Acquisition are based on a preliminary estimate of fair value using assumptions described in the accompanying notes to the Unaudited Pro Forma Condensed Combined Financial Information that the Company believes are reasonable.

The final purchase price allocation for the Transactions will be performed as soon as practicable after the closing of the Telx Acquisition and will depend on the final purchase price, which may be impacted by working capital adjustments, and final asset and liability valuations, which may depend in part on prevailing market rates and conditions. Final asset and liability valuations will be based on the actual net tangible and intangible assets that exist as of the closing of the Telx Acquisition. Any final adjustments may change the allocations of the purchase price, which could affect the fair value assigned to the assets acquired and liabilities assumed and could result in a change to the Unaudited Pro Forma Condensed Combined Financial Information, including the amount of goodwill and depreciation and amortization. Therefore, the result of the final purchase price allocation could be materially different from the preliminary allocation set forth herein.

Certain of the facilities acquired in the Telx Acquisition may be reassessed for property tax purposes after the consummation of the acquisition. Therefore, the amount of property taxes the Company pays in the future may change from what the Telx has paid in the past. Given the uncertainty of the amounts involved, any property tax changes have not been reflected in the Unaudited Pro Forma Condensed Combined Financial Information. In addition, the Company plans to treat certain of Telx’s assets as real property (rather than personal property) for federal income tax purposes. This change will require the Company to recognize additional income over the following four years. While the Company has net operating losses that may shield this income through 2016, the Company currently estimate that it may be required to pay up to $20.0 million in federal income taxes, in the aggregate, as a result of this income recognition with respect to the 2017 to 2018 period.

The Unaudited Pro Forma Condensed Combined Balance Sheet reflects the Transactions as if they had been consummated on March 31, 2015, and the Unaudited Pro Forma Condensed Combined Statements of Operations gives effect to the Transactions as if they had been consummated on January 1, 2014. The following Unaudited Pro Forma Condensed Combined Financial Information is based on, and should be read in conjunction with:

The Unaudited Pro Forma Condensed Combined Financial Information included herein has been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. The Unaudited Pro Forma Condensed Combined Financial Information has been prepared to reflect adjustments to the Company’s historical consolidated financial information that are (i) directly attributable to the Transactions, (ii) factually supportable and (iii) with respect to the Unaudited Pro Forma Condensed Combined Income Statement, expected to have a continuing impact on the combined results. Certain information and certain note disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations; however, management believes that the disclosures are adequate to make the information presented not misleading.

The Unaudited Pro Forma Condensed Combined Financial Information is presented for informational purposes only and is not necessarily indicative of the operating results or financial position that actually would have been achieved if the Transactions had occurred on the dates indicated or that may be achieved in future periods. The Unaudited Pro Forma Condensed Combined Financial Information should be read in conjunction with the financial statements of the Company and Telx. It also does not reflect any cost savings, operating synergies or revenue enhancements that the Company may achieve with respect to combining the companies or costs to integrate the business or the impact of any non-recurring activity and any one-time transaction related costs. Synergies and integration costs have been excluded from consideration because they do not meet the criteria for unaudited pro forma adjustments.

DIGITAL REALTY TRUST, INC.

UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET

AS OF MARCH 31, 2015

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

UNAUDITED PRO FORMA CONDENSED COMBINED INCOME STATEMENT

FOR THE THREE MONTHS ENDED MARCH 31, 2015

DIGITAL REALTY TRUST, INC.

UNAUDITED PRO FORMA CONDENSED COMBINED INCOME STATEMENT

FOR THE YEAR ENDED DECEMBER 31, 2014

DIGITAL REALTY TRUST, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

Financial information presented in the “Historical Telx” columns in the Unaudited Pro Forma Condensed Combined Balance Sheet and Statement of Operations represents the historical balance sheet of Telx as of March 31, 2015 and the historical statement of operations of Telx for the year ended December 31, 2014 and for the three months ended March 31, 2015, respectively. Such financial information has been reclassified or classified to conform to the historical presentation in the Company’s consolidated financial statements as set forth below. Unless otherwise indicated, defined line items included in the footnotes have the meanings given to them in the historical financial statements of Telx.

Reclassification and classification of the Unaudited Pro Forma Condensed Combined Balance Sheet as of March 31, 2015:

Reclassification and classification of the Unaudited Pro Forma Condensed Combined Income Statement for the three months ended March 31, 2015:

Reclassification and classification of the Unaudited Pro Forma Condensed Combined Income Statement for the year ended December 31, 2014:

The Unaudited Pro Forma Condensed Combined Balance Sheet reflects the effect of the following adjustments:

Upon closing, the purchase consideration will be adjusted for working capital levels and other adjustments as stipulated in the Merger Agreement.

Upon completion of the fair value assessment, the final purchase price allocation may differ from the preliminary allocation provided above. Any changes to the initial estimates of the fair value of the assets and liabilities will be recorded as adjustments to those assets and liabilities and the residual amounts will be allocated as an increase or decrease to goodwill. The goodwill recorded is due primarily to the synergies expected to be realized between the two companies and the assembled workforce acquired in connection with the Telx Acquisition.

The fair value of investment in real estate acquired of $603.9 million consists of land with an estimated fair value of $7.2 million, building and improvements with an estimated fair value of $272.1 million, equipment with an estimated fair value of $311.8 million and construction in process with an estimated fair value of $12.7 million. Investment in real estate is expected to be amortized on a straight-line basis over estimated useful lives of 3 - 39 years.

The components of investment in real estate have been valued using a combination of the income approach, the market approach and the cost approach, which is based on current replacement and/or reproduction cost of the asset as new, less depreciation attributable to physical, functional and economic factors.

The fair value of intangible assets acquired of $997.7 million consist of in-place leases with an estimated fair value of $259.0 million, customer relationships with an estimated fair value of $741.5 million and the Telx trade name with an estimated fair value of $8.2 million and unfavorable leases of $(10.9) million. The in-place lease value is expected to be amortized on a straight-line basis over an estimated useful life of two years, the customer relationship intangible assets are expected to be amortized on a straight-line basis over an estimated useful life of 18 years and the Telx trade name is expected to be amortized on a straight-line basis over an estimated useful life of five years and the unfavorable leases are expected to be amortized on a straight-line basis over an estimated useful life of five years.

The fair value of intangible assets is determined primarily using the “income approach,” which is a valuation technique that provides an estimate of the fair value of an asset based on market participants’ expectations of the cash flows an asset would generate over its remaining useful life. Some of the more significant assumptions inherent in the development of the valuations include the estimated annual net cash flows for each indefinite lived or definite lived intangible asset (including net revenues, operating expenses, selling and marketing costs and working capital asset/contributory asset charges), the appropriate discount rate that appropriately reflects the risk inherent in each future cash flow stream, the assessment of each asset’s life cycle, competitive trends as well as other factors.

The Unaudited Pro Forma Condensed Combined Income Statements reflect the effect of the following pro forma adjustments:

For the three months ended March 31, 2015, real estate depreciation expense for Telx would have been $50.8 million and non-real estate depreciation expense would have been $1.2 million. For the year ended December 31, 2014, total real estate depreciation expense for Telx would have been $203.3 million and non-real estate depreciation expense would have been $4.8 million.