Exhibit 99.1

GRUBHUB REPORTS RECORD first QUARTER RESULTS

Grubhub generates 49% revenue growth in the first quarter

CHICAGO, May 1, 2018 – Grubhub Inc. (NYSE: GRUB), the nation’s leading online and mobile food-ordering and delivery marketplace, today announced financial results for the first quarter ended March 31, 2018. For the first quarter, the Company posted revenues of $232.6 million, which is a 49% year-over-year increase from $156.1 million in the first quarter of 2017. Gross Food Sales grew 39% year-over-year to $1.2 billion, up from $898 million in the year ago period.

"Our team executed well in the first quarter, making meaningful progress toward our most significant goals for 2018. We’ve already launched dozens of new delivery markets, completed our Yelp and Eat24 integrations a quarter earlier than expected, and attracted a record quarterly number of organic new diners," said Grubhub CEO, Matt Maloney. "Our restaurant partnerships are broader and deeper than ever before, increasing our value to diners and driving sustained diner and order growth.”

First Quarter 2018 Highlights

The following results reflect the financial performance and key operating metrics of our business for the three months ended March 31, 2018, as compared to the same period in 2017.

First Quarter Financial Highlights

First Quarter Key Business Metrics Highlights

"Organic DAG growth accelerated for the second quarter in a row, fueled by the most comprehensive restaurant marketplace and our efficient delivery," said Grubhub President and CFO Adam DeWitt. "Our scale continues to generate improving profitability, leading to record EBITDA per order of $1.63 during the first quarter, even as we push hard on delivery market expansion and spreading diner awareness."

Second Quarter and Full Year 2018 Guidance

Based on information available as of May 1, 2018, the Company is providing the following financial guidance for the second quarter and full year of 2018:

First Quarter 2018 Financial Results Conference Call 

Grubhub will webcast a conference call today at 9 a.m. CT to discuss the first quarter 2018 financial results. The webcast can be accessed on the Grubhub Investor Relations website at http://investors.grubhub.com, along with the Company's earnings press release and financial tables. A replay of the webcast will be available at the same website until May 15, 2018.

About Grubhub

Grubhub (NYSE: GRUB) is the nation’s leading online and mobile takeout food-ordering marketplace with the largest and most comprehensive network of restaurant partners, as well as the largest diner base. Dedicated to connecting diners with the food they love from their favorite local restaurants, Grubhub strives to elevate food ordering through innovative restaurant technology, easy-to-use platforms and an improved delivery experience. Grubhub is proud to work with more than 80,000 restaurant partners in over 1,600 U.S. cities and London. The Grubhub portfolio of brands includes Grubhub, Seamless, Eat24, AllMenus and MenuPages.

Use of Forward Looking Statements

This press release contains forward-looking statements regarding Grubhub, “the Company’s” or our management's future expectations, beliefs, intentions, goals, strategies, plans and prospects, including the expected benefits to, and financial performance of, Grubhub following the acquisition of Eat24 and its commercial agreements with Yelp and Yum! Brands. Such statements constitute “forward-looking statements”, which are subject to the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements involve substantial known and unknown risks, uncertainties and assumptions that could cause actual results, performance or achievements to differ materially from any future results, performance or achievements expressed or implied by the forward-looking statements. Such risks and uncertainties include, but are not limited to, the matters set forth in the filings that we make with the Securities and Exchange Commission from time to time, including those set forth in the section entitled “Risk Factors” in our Annual Report on Form 10-K filed on February 28, 2018, which is on file with the SEC and is available on the Investor Relations section of our website at http://investors.grubhub.com. Additional information will be set forth in our Quarterly Report on Form 10-Q that will be filed for the quarter ended March 31, 2018, which should be read in conjunction with these financial results. Please also note that forward-looking statements represent management's beliefs and assumptions only as of the date of this press release. Except as required by law, we disclaim any intention to, and undertake no obligation to, publicly update these forward-looking statements, or to update the reasons actual results could differ

materially from those anticipated in the forward-looking statements, even if new information becomes available in the future.

Use of Non-GAAP Financial Measures

Adjusted EBITDA, non-GAAP net income and non-GAAP net income per diluted share attributable to common stockholders are financial measures that are not calculated in accordance with accounting principles generally accepted in the United States, or GAAP.

We define Adjusted EBITDA as net income adjusted to exclude acquisition, restructuring and certain legal costs, income taxes, interest income and expense, depreciation and amortization and stock-based compensation expense. Non-GAAP net income and non-GAAP net income per diluted share attributable to common stockholders exclude acquisition, restructuring and certain legal costs, amortization of acquired intangible assets, stock-based compensation expense and other nonrecurring items as well as the income tax effects of these non-GAAP adjustments. We use these non-GAAP financial measures as key performance measures because we believe they facilitate operating performance comparisons from period to period by excluding potential differences primarily caused by variations in capital structures, tax positions, the impact of acquisitions, restructuring and certain legal costs, the impact of depreciation and amortization expense on our fixed assets and the impact of stock-based compensation expense. Adjusted EBITDA, non-GAAP net income and non-GAAP net income per diluted share attributable to common stockholders are not measurements of our financial performance under GAAP and should not be considered as an alternative to performance measures derived in accordance with GAAP.

See “Schedule of Non-GAAP Financial Measures Reconciliation” below for a reconciliation of net income to Adjusted EBITDA, non-GAAP net income and non-GAAP net income per diluted share attributable to common stockholders.

GRUBHUB INC.

STATEMENTS OF OPERATIONS

(in thousands, except per share data)

KEY OPERATING METRICS

GRUBHUB INC.

NON-GAAP FINANCIAL MEASURES RECONCILIATION

(in thousands, except per share data)