Exhibit 99.1

Greenbrier Reports First Quarter Results

~ Posts EPS of $0.83 ~

~ Announces orders of 3,200 railcars valued at over $290 million ~

~ Reaffirms FY 2018 guidance ~

Lake Oswego, Oregon, January 5, 2018 – The Greenbrier Companies, Inc. (NYSE: GBX) today reported financial results for its first fiscal quarter ended November 30, 2017.

First Quarter Highlights

William A. Furman, Chairman and CEO, said, “Greenbrier advanced several key initiatives during the quarter and is on track to achieve our goals for the year. While the new railcar market in North America is challenging, broad-based demand for Greenbrier’s products and services remains steady and we expect will trend higher as we advance through fiscal 2018. During the recent quarter, Greenbrier received 3,200 orders for a broad range of railcar types including covered hoppers, tanks, automotive carrying units and our first orders for open top hoppers for use in aggregate service. Greenbrier’s disciplined balance sheet management has resulted in a strong cash position and very low net debt, enabling us to invest strategically and return capital to shareholders. Good backlog visibility combined with a strong balance sheet provides the flexibility we need to build railcars when and where customers need them, across four continents.”

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Furman concluded, “Based on first quarter results, we are confident in our guidance for the year. As fiscal 2018 progresses, we will continue integration of our new manufacturing investments and will continue to expand internationally. Greenbrier is well positioned to achieve its ambitious business objectives for fiscal 2018 as growth in North American and international markets drives increased revenues, deliveries and EPS compared to fiscal 2017.”

Business Outlook

Based on current business trends, industry forecasts and production schedules for fiscal 2018, and excluding the expected benefits of the recent tax reform act, Greenbrier believes:

As noted in the “Safe Harbor” statement, there are risks to achieving this guidance. Certain orders and backlog in this release are subject to customary documentation and completion of terms.

Financial Summary

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Segment Summary

Conference Call

Greenbrier will host a teleconference to discuss its first quarter 2018 results. In conjunction with this news release, Greenbrier has posted a supplemental earnings presentation to our website.

Teleconference details are as follows:

Please access the site 10 minutes prior to the start time.

About Greenbrier

Greenbrier, headquartered in Lake Oswego, Oregon, is a leading international supplier of equipment and services to global freight transportation markets. Greenbrier designs, builds and markets freight railcars and marine barges in North America. Greenbrier Europe is an end-to-end freight railcar manufacturing, engineering and repair business with operations in Poland and Romania that serves customers across Europe and in the nations of the GCC. Greenbrier builds freight railcars and rail castings in Brazil through two separate strategic partnerships. We are a leading provider of wheel services, parts, railcar management & regulatory compliance services and leasing services to railroads and related transportation industries in North America. Greenbrier offers freight railcar repair, refurbishment and retrofitting services in North America through a joint venture partnership with Watco Companies, LLC. Through other unconsolidated joint ventures, we produce industrial and rail castings, tank heads and other components. Greenbrier owns a lease fleet of over 8,000 railcars and performs management services for 353,000 railcars. Learn more about Greenbrier at www.gbrx.com.

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“SAFE HARBOR” STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995: This press release may contain forward-looking statements, including any statements that are not purely statements of historical fact. Greenbrier uses words such as “anticipates,” “believes,” “forecast,” “potential,” “goal,” “contemplates,” “expects,” “intends,” “plans,” “projects,” “hopes,” “seeks,” “estimates,” “strategy,” “could,” “would,” “should,” “likely,” “will,” “may,” “can,” “designed to,” “future,” “foreseeable future” and similar expressions to identify forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to certain risks and uncertainties that could cause actual results to differ materially from the results contemplated by the forward-looking statements. Factors that might cause such a difference include, but are not limited to, reported backlog and awards that are not indicative of Greenbrier’s financial results; uncertainty or changes in the credit markets and financial services industry; high levels of indebtedness and compliance with the terms of Greenbrier’s indebtedness; write-downs of goodwill, intangibles and other assets in future periods; sufficient availability of borrowing capacity; fluctuations in demand for newly manufactured railcars or failure to obtain orders as anticipated in developing forecasts; loss of one or more significant customers; customer payment defaults or related issues; policies and priorities of the federal government regarding international trade, taxation and infrastructure; sovereign risk to contracts, exchange rates or property rights; actual future costs and the availability of materials and a trained workforce; failure to design or manufacture new products or technologies or to achieve certification or market acceptance of new products or technologies; steel or specialty component price fluctuations and availability and scrap surcharges; changes in product mix and the mix between segments; labor disputes, energy shortages or operating difficulties that might disrupt manufacturing operations or the flow of cargo; production difficulties and product delivery delays as a result of, among other matters, costs or inefficiencies associated with expansion, start-up, or changing of production lines or changes in production rates, changing technologies, transfer of production between facilities or non-performance of alliance partners, subcontractors or suppliers; ability to obtain suitable contracts for the sale of leased equipment and risks related to car hire and residual values; integration of current or future acquisitions and establishment of joint ventures; succession planning; discovery of defects in railcars or services resulting in increased warranty costs or litigation; physical damage or product or service liability claims that exceed Greenbrier’s insurance coverage; train derailments or other accidents or claims that could subject Greenbrier to legal claims; actions or inactions by various regulatory agencies including potential environmental remediation obligations or changing tank car or other railcar or railroad regulation; and issues arising from investigations of whistleblower complaints; all as may be discussed in more detail under the headings “Risk Factors” and “Forward Looking Statements” in Greenbrier’s Annual Report on Form 10-K for the fiscal year ended August 31, 2017 and Greenbrier’s other reports on file with the Securities and Exchange Commission. Readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s opinions only as of the date hereof. Except as otherwise required by law, Greenbrier does not assume any obligation to update any forward-looking statements.

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CONSOLIDATED BALANCE SHEETS

(In thousands, unaudited)

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CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share amounts, unaudited)

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CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands, unaudited)

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SUPPLEMENTAL INFORMATION

(In thousands, except per share amounts, unaudited)

Operating Results by Quarter for 2017 are as follows:

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SUPPLEMENTAL INFORMATION

(In thousands, unaudited)

Segment Information

Three months ended November 30, 2017:    

Three months ended August 31, 2017:    

The results of operations for GBW, which are shown below, are not reflected in the above tables as the investment is accounted for under the equity method of accounting.

During the three months ended August 31, 2017, GBW performed an interim goodwill test as sales and profitability trends declined beyond what was anticipated. As a result, GBW recorded a pre-tax impairment loss of $11.2 million. GBW is accounted for under the equity method of accounting, therefore our share of the non-cash impairment loss recognized by GBW was $3.5 million after-tax ($0.11 per share) and is included as part of Earnings (loss) from unconsolidated affiliates on our Consolidated Statement of Income.

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SUPPLEMENTAL INFORMATION

(In thousands, excluding backlog and delivery units, unaudited)

Reconciliation of Net earnings to Adjusted EBITDA

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SUPPLEMENTAL INFORMATION

(In thousands, except per share amounts, unaudited)

Reconciliation of common shares outstanding, adjusted net earnings attributable to Greenbrier and adjusted diluted earnings per share

The shares used in the computation of the Company’s basic and diluted earnings per common share are reconciled as follows:

Diluted earnings per share was calculated using the more dilutive of two approaches. The first approach includes the dilutive effect of using the treasury stock method, associated with shares underlying the 2024 Convertible notes and performance based restricted stock units that are subject to performance criteria, for which actual levels of performance above target have been achieved. The second approach supplements the first by including the “if converted” effect of the 2018 Convertible notes. Under the “if converted method” debt issuance and interest costs, both net of tax, associated with the convertible notes are added back to net earnings and the share count is increased by the shares underlying the convertible notes. The 2024 Convertible notes are included in the calculation of both approaches using the treasury stock method when the average stock price is greater than the applicable conversion price.

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