Exhibit 99.1

MARCUS & MILLICHAP, INC. REPORTS RESULTS FOR

FIRST QUARTER 2017

CALABASAS, Calif., May 9, 2017 — (BUSINESS WIRE) — Marcus & Millichap, Inc. (the “Company”, “Marcus & Millichap”, “MMI”) (NYSE: MMI), a leading national brokerage firm specializing in commercial real estate investment sales, financing, research and advisory services, today reported financial results for the first quarter ended March 31, 2017.

First Quarter 2017 Highlights Compared to First Quarter 2016

Hessam Nadji, president and CEO stated, “MMI once again increased market share as reflected in our team’s ability to execute as many transactions in the first quarter as we did a year ago, despite an estimated 10% -15% decline in market sales.” Mr. Nadji added, “As we had anticipated, the ripple effect of the post-presidential election interest rate jump and uncertainty regarding tax policy continued to hinder sales velocity, particularly in the Private Client Market segment. Our revenue trend line was especially challenged by the drop in larger transactions when compared to our exceptionally high closings in this market segment a year ago, which included a portfolio sale at nearly $500 million.”

“We are starting to see movement in the bid/ask spread, interest rates have eased modestly and property fundamentals remain healthy. These positive factors, combined with eventual clarity on tax policy and economic initiatives should improve overall sales activity. Consistent with our 46-year tradition of client service and focusing on long-term growth, we are helping our clients navigate this particular phase in the cycle while continuing with strategic investments, recruiting and training. We believe these initiatives will further fortify the MMI platform and create long-term shareholder value,” Mr. Nadji concluded.

First Quarter 2017 Results Compared to First Quarter 2016

Total revenues for the first quarter of 2017 were $153.2 million compared to $164.3 million for the same period in the prior year, decreasing by $11.1 million, or 6.7%. The reduction in total revenues was primarily driven by the decrease in real estate brokerage commissions, which declined by 8.8% to $140.1 million. This reduction in brokerage commissions was primarily due to a decrease in sales volume and to a lesser extent, number of transactions, partially offset by an increase in average commission rates due to a smaller proportion of higher priced transactions, which generate lower commission rates. The decrease in brokerage commissions were partially offset by growth in financing fees and other revenues.

Total operating expenses for the first quarter of 2017 decreased by 3.8% to $134.2 million, compared to $139.4 million for the same period in the prior year. The decrease was primarily driven by a 6.8% decrease in cost of services, which are variable commissions paid to the Company’s investment sales professionals and compensation-related costs in connection with our financing activities. Cost of services as a percent of total revenues remained consistent at 58.5% for the first quarter of 2017 compared to the same period in the prior year.

Selling, general and administrative expenses for the first quarter of 2017 increased by 2.3% to $43.2 million, compared to the same period in the prior year. The increase was primarily due to (i) expansion of existing offices; (ii) stock-based compensation expense; (iii) salaries and related benefits as a result of growth in headcount to support the expansion of services for our investment sales and financing professionals and (iv) other expense categories, net primarily driven by our expansion and sales force growth. These costs were partially offset by lower management performance-related compensation and lower legal costs. As of March 31, 2017, the Company had 1,736 investment sales and financing professionals.

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Net income for the first quarter of 2017 was $12.0 million, or $0.31 per common share (basic and diluted), compared to net income of $14.8 million, or $0.38 per common share (basic and diluted) for the same period in the prior year. Adjusted EBITDA for the first quarter of 2017 decreased by 17.5% to $22.4 million, compared to adjusted EBITDA of $27.2 million for the same period in the prior year.

Business Outlook

The Company is positioned to gain market share by leveraging a number of factors, including its leading national brand predominantly within its Private Client Market segment and specialty groups, experienced management team, infrastructure investments and proprietary technology. The size and fragmentation of the Private Client Market segment, in particular, continues to offer long-term growth opportunities with the top ten brokers making up only 24% market share. This market segment consistently accounts for over 80% of commercial property sales transactions and 60% of the commission pool. The Company’s growth plan also includes further expansion into various specialty property types such as hospitality, self-storage, seniors housing and the Larger Transaction Market segment, as well as expansion of its financing division, Marcus & Millichap Capital Corporation.

Key factors that will continue to impact the Company’s business:

These factors, in addition to the business’s typical transaction closing date variability, highlight the importance of viewing the Company’s business through a long-term, at least annual perspective. Second quarter 2017 year-over-year comparisons will be challenging in light of the solid performance in the second quarter of 2016 in contrast to current market headwinds. In addition, the Company’s strategic increase in investments in infrastructure and systems improvements are ongoing and will position the firm for long-term growth. Expense leveraging is not expected until late 2017-2018.

Conference Call Details

Marcus & Millichap will host a conference call today to discuss the results at 5:00 p.m. Eastern Time. To participate in the conference call, callers from the United States and Canada should dial (877) 407-9208 ten minutes prior to the scheduled call time. International callers should dial (201) 493-6784. For those unable to participate during the live broadcast, a telephonic replay of the call will also be available from 8:00 p.m. Eastern Time on Tuesday, May 9, 2017, through 11:59 p.m. Eastern Time on Tuesday, May 23, 2017, by dialing (844) 512-2921 in the United States and Canada or (412) 317-6671 internationally and entering passcode 13660662.

About Marcus & Millichap, Inc.

Marcus & Millichap, Inc. is a leading national brokerage firm specializing in commercial real estate investment sales, financing, research and advisory services. As of March 31, 2017, the Company had over 1,700 investment sales and financial professionals in 80 offices who provide investment brokerage and financing services to sellers and buyers of commercial real estate. The Company also offers market research, consulting and advisory services to our clients. Marcus & Millichap closed 2,067 transactions for the three months ended March 31, 2017, with a sales volume of approximately $8.5 billion. For additional information, please visit www.MarcusMillichap.com.

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This release includes forward-looking statements, including the Company’s business outlook for 2017 and expectations for market share growth. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends affecting the financial condition of our business. Forward-looking statements should not be read as a guarantee of future performance or results and will not necessarily be accurate indications of the times at, or by, which such performance or results will be achieved. Forward-looking statements are based on information available at the time those statements are made and/or management’s good faith belief as of that time with respect to future events and are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in or suggested by the forward-looking statements. Important factors that could cause such differences include, but are not limited to:

In addition, in this release, the words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “predict,” “potential,” “should” and similar expressions, as they relate to our company, our business and our management, are intended to identify forward-looking statements. In light of these risks and uncertainties, the forward-looking events and circumstances discussed in this release may not occur and actual results could differ materially from those anticipated or implied in the forward-looking statements.

Forward-looking statements speak only as of the date of this release. You should not put undue reliance on any forward-looking statements. We assume no obligation to update forward-looking statements to reflect actual results, changes in assumptions or changes in other factors affecting forward-looking information, except to the extent required by applicable laws. If we update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

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MARCUS & MILLICHAP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF NET

AND COMPREHENSIVE INCOME

(dollar and share amounts in thousands, except per share amounts)

(Unaudited)

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MARCUS & MILLICHAP, INC.

KEY OPERATING METRICS SUMMARY

(Unaudited)

Total sales volume was $8.5 billion for the three months ended March 31, 2017, encompassing 2,067 transactions consisting of $6.5 billion for real estate brokerage (1,489 transactions), $1.2 billion for financing (391 transactions) and $0.8 billion in other transactions, including consulting and advisory services (187 transactions). As of March 31, 2017, the Company had 1,638 investment sales professionals and 98 financing professionals. Key metrics for real estate brokerage and financing are as follows:

The following table sets forth the number of transactions, sales volume and revenues by commercial real estate market segment for real estate brokerage:

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MARCUS & MILLICHAP, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(dollar amounts in thousands, except per share amounts)

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MARCUS & MILLICHAP, INC.

OTHER INFORMATION

(Unaudited)

Adjusted EBITDA Reconciliation

Adjusted EBITDA, which the Company defines as net income before (i) interest income and other, including net realized gains (losses) on marketable securities, available-for-sale and cash and cash equivalents, (ii) interest expense, (iii) provision for income taxes, (iv) depreciation and amortization and (v) stock-based compensation. The Company uses Adjusted EBITDA in its business operations to evaluate the performance of its business, develop budgets and measure its performance against those budgets, among other things. The Company also believes that analysts and investors use Adjusted EBITDA as a supplemental measure to evaluate its overall operating performance. However, Adjusted EBITDA has material limitations as an analytical tool and should not be considered in isolation or as a substitute for analysis of the Company’s results as reported under U.S. generally accepted accounting principles (“U.S. GAAP”). The Company finds Adjusted EBITDA as a useful tool to assist in evaluating performance because Adjusted EBITDA eliminates items related to capital structure and taxes and non-cash stock-based compensation charges. In light of the foregoing limitations, the Company does not rely solely on Adjusted EBITDA as a performance measure and also considers its U.S. GAAP results. Adjusted EBITDA is not a measurement of the Company’s financial performance under U.S. GAAP and should not be considered as an alternative to net income, operating income or any other measures derived in accordance with U.S. GAAP. Because Adjusted EBITDA is not calculated in the same manner by all companies, it may not be comparable to other similarly titled measures used by other companies.

A reconciliation of the most directly comparable U.S. GAAP financial measure, net income, to Adjusted EBITDA is as follows (in thousands):

Glossary of Terms

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Certain Adjusted Metrics

Real Estate Brokerage

During the three months ended March 31, 2016, we closed a large transaction in our real estate brokerage business in excess of $300 million. Following are actual and as adjusted metrics excluding this transaction:

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