Sonder–Marriott Breach Left Guests Stranded—What Went Wrong

Sonder announced it would wind down U.S. operations and begin Chapter 7 liquidation the day after Marriott terminated its licensing agreement with the company.

The exterior of a Marriott hotel in Austin, Texas, on Feb. 14, 2023. Brandon Bell/Getty Images

The abrupt collapse of the partnership between Sonder Holdings Inc. and Marriott International has sent shockwaves through the hospitality industry this week, leaving guests stranded, employees in chaos, and investors reeling.

A few Reddit postings describe the difficult position Sonder’s guests and employees found themselves in following the end of the partnership.

“At 10 AM this morning … we discovered that we were locked out of all Marriott portals … we then went to Google, where we found all the articles about the severance,” one guest wrote.

“Finding out 1 day into a 7-day trip that we were getting kicked out of the hotel wasn’t what I was expecting with a Marriott property,” another wrote.

At the same time, many reported that their card charge showed “Sonder” as the merchant, complicating refunds.

Employees also revealed chaos due to the lack of information.

“After months of feeling like something was off, it’s now officially confirmed: Sonder will be no more … we’ve been locked out of our systems … If you’re a guest, please check your email for updates,” a Reddit user wrote.

Shares of Sonder plunged nearly 70 percent on Nov. 10, trading just a few cents above zero as the company prepared to liquidate under Chapter 7 bankruptcy proceedings.

Marriott’s shares dropped at the opening of the trading session on the day, but recovered by the market close.

Partners Trade Blame

In a statement released on Nov. 9, Marriott said its licensing agreement with Sonder was “no longer in effect” after Sonder defaulted.

“As a result, Sonder is no longer affiliated with Marriott Bonvoy, and Sonder properties are not available for new bookings on Marriott’s channels,” the company said.

Sonder, in its own announcement on Nov. 10, blamed “prolonged challenges in the integration of the Company’s systems and booking arrangements with Marriott International.”

The statement then explained that, after the company concluded it had no choice but to wind down operations and liquidate its business, it filed for Chapter 7 in a U.S. federal court, initiating insolvency proceedings.

Interim CEO Janice Sears said in the same statement that management was “devastated to reach a point where a liquidation is the only viable path forward,” citing the delays in system integration and worsening financial strain.

From ‘Deal Made in Heaven’ to Collapse

The Marriott–Sonder partnership, announced in August 2024, was initially seen as a strategic win for both companies. Marriott gained access to Sonder’s growing inventory of urban boutique properties. At the same time, Sonder benefited from Marriott’s global reach and Bonvoy loyalty base—an apparent quick defense against the rise of Airbnb.

However, the partnership was hampered by fundamental differences in the companies’ business models.

Sonder was founded in 2014 in Montreal as a hospitality operator—something halfway between a hotel company and Airbnb. It followed an “asset-heavy model,” which included leasing or managing entire apartment buildings or hotel floors and converting them into short-term rental units.

In addition, it pursued several real estate and management operations such as renovation and interior design, furnishing, cleaning, maintenance, and local staff management.

To perform these operations, the company needed a great deal of capital, which it raised after moving its headquarters to San Francisco and going public in 2022 through a special purpose acquisition company (SPAC) merger.

Still, Sonder’s model continued to require high capital investment and exposed the company to significant financial risk. In its own SEC filings, Sonder acknowledged that “significant fixed lease obligations, rent, and operating expenses … may adversely affect liquidity,” and that it “commits capital to design and furnish units.”

Profitability Gap

As of June 2025, Sonder’s return on invested capital (ROIC) stood at –0.06 percent. By contrast, its competitor Airbnb, which maintains an “asset-light” model involving no property ownership, achieved an ROIC of 58.31 percent as of September.

Sonder’s profit margins and cash flow remained negative for years, forcing the company to rely heavily on external financing. By mid-2025, the company had fallen behind on its quarterly SEC filings, triggering non-compliance notices.

Business attorney Alex Lubyansky told The Epoch Times that Sonder’s downfall also reflects “weak execution and poor capital discipline.”

“The Marriott partnership revealed structural flaws that strong diligence would have caught,” he said. “In business, scale only creates value when the foundation can bear the weight.”

With Sonder now entering liquidation and Marriott moving on from the failed experiment, analysts say the episode underscores how divergent business models—and integration missteps—can upend even the most promising corporate partnerships.