Exhibit 99.1

For release: June 29, 2017, 6:00 a.m. EDT    

Greenbrier Reports Third Quarter Results

~ Posts EPS of $1.03 ~

~ Manufacturing gross margin of nearly 23% ~

~ Diversified orders of 11,000 new railcars ~

Lake Oswego, Oregon, June 29, 2017 – The Greenbrier Companies, Inc. (NYSE: GBX) today reported financial results for its third fiscal quarter ended May 31, 2017.

Third Quarter Highlights

William A. Furman, Chairman and CEO said, “Our two-part strategy is succeeding. Specifically, our strategy protects and grows our core North American businesses while we also expand internationally in promising regions for rail transportation. By adhering to this strategy, Greenbrier delivered strong third quarter results highlighted by favorable gross margins of 20% and orders for 11,000 railcars. This is a testament to our business flexibility and our team’s ability to execute in more challenging markets for our products and services.”

- More -

Furman continued, “We are encouraged by the strong order activity in our third quarter of 11,000 units, and especially in our North American and European markets. Excluding the 6,000 units from the MUL transaction, orders in these traditional markets totaled 5,000 units, the strongest level achieved in the past two years. This total excludes orders received by Greenbrier-Maxion and Astra Rail for the trailing three months. Our backlog of 31,000 railcar units places Greenbrier on a strong footing as we approach fiscal 2018. Since the beginning of the year we have observed sustained and increasing railcar loadings across commodity types, as well as decreasing rail velocity. Both are positive indicators for the near term demand environment.”

Furman added, “While we see emerging improvements in North American and European rail markets, we still expect a challenging commercial environment into calendar 2018. This makes execution of our two-part strategy even more important in the upcoming fiscal year. Although unforeseen developments in our markets can always occur, we remain cautiously optimistic.”

Furman concluded, “We will continue to forge new partnerships and expand on existing relationships like the transactions we finalized recently with MUL, Greenbrier-Maxion and Astra Rail. With manufacturing operations on three continents, solid railcar backlog, strong cash flows and a flexible balance sheet, Greenbrier continues to deliver long-term value for its shareholders.”

Business Outlook

Based on current business trends and production schedules for fiscal 2017, Greenbrier refines provided guidance for:

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.

- More -

Financial Summary

Segment Summary

⁽¹⁾ See supplemental segment information on page 11 for additional information.

⁽²⁾ Includes Net gain on disposition of equipment, which is excluded from gross margin.

- More -

Conference Call

Greenbrier will host a teleconference to discuss its third quarter 2017 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 (www.gbrx.com), headquartered in Lake Oswego, Oregon, is a leading international supplier of equipment and services to freight rail transportation markets. Greenbrier designs, builds and markets freight railcars in North America, Latin America and Europe. We also build and market marine barges in North America. We manufacture freight railcars in Brazil through a strategic partnership in which we hold a majority interest and produce rail castings through a separate Brazilian partnership. Greenbrier also has a majority stake in Greenbrier-Astra Rail, an end-to-end, Europe-based freight railcar manufacturing, engineering and repair business. Through our European manufacturing operations, we deliver U.S.-designed tank cars to Saudi Arabia. We are a leading provider of wheel services, parts, leasing and other services to the railroad and related transportation industries in North America and a supplier of freight railcar repair, refurbishment and retrofitting services in North America through a joint venture partnership with Watco Companies, LLC. Through other joint ventures, we produce rail castings, tank heads and other railcar components. Greenbrier owns a lease fleet of over 9,000 railcars and performs management services for 267,000 railcars.

“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 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

- More -

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, 2016 and Greenbrier’s Quarterly Report on Form 10-Q for the fiscal quarter ended February 28, 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.

Adjusted EBITDA is not a financial measure under generally accepted accounting principles (GAAP). We define Adjusted EBITDA as Net earnings before Interest and foreign exchange, Income tax expense, Depreciation and amortization. Adjusted EBITDA is a performance measurement tool commonly used by rail supply companies and Greenbrier. We believe the presentation of Adjusted EBITDA provides useful information as it excludes the impact of financing, foreign exchange, income taxes and the accounting effects of capital spending. These items may vary for different companies for reasons unrelated to the overall operating performance of a company’s core business. We believe Adjusted EBITDA assists investors in understanding our underlying core operating performance and improves the period to period comparability. You should not consider Adjusted EBITDA in isolation or as a substitute for other financial statement data determined in accordance with GAAP. In addition, because Adjusted EBITDA is not a measure of financial performance under GAAP and is susceptible to varying calculations, this measure presented may differ from and may not be comparable to similarly titled measures used by other companies.

- More -

THE GREENBRIER COMPANIES, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands, unaudited)

- More -

THE GREENBRIER COMPANIES, INC.

CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share amounts, unaudited)

- More -

THE GREENBRIER COMPANIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands, unaudited)

- More -

THE GREENBRIER COMPANIES, INC.

SUPPLEMENTAL INFORMATION

(In thousands, except per share amounts, unaudited)

Operating Results by Quarter for 2017 are as follows:

- More -

THE GREENBRIER COMPANIES, INC.

SUPPLEMENTAL INFORMATION

(In thousands, except per share amounts, unaudited)

Operating Results by Quarter for 2016 are as follows:

- More -

THE GREENBRIER COMPANIES, INC.

SUPPLEMENTAL INFORMATION

(In thousands, unaudited)

Segment Information

Three months ended May 31, 2017:

Three months ended February 28, 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.

- More -

THE GREENBRIER COMPANIES, INC.

SUPPLEMENTAL INFORMATION

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

Reconciliation of Net earnings to Adjusted EBITDA

- More -

THE GREENBRIER COMPANIES, INC.

SUPPLEMENTAL INFORMATION

(In thousands, except per share amounts, unaudited)

Reconciliation of common shares outstanding and 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, 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 issued in March 2011. 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.

- More -