Question: SpareFoot is an Austin-based company that provides listings for self-storage units similar to what  online marketplace and hospitality service?

Context paragraphs:
LexShares: LexShares, founded in 2014 by Jay Greenberg and Max Volsky, operates an online marketplace for investing in lawsuits with principal offices in New York and Boston.  The company serves as a online marketplace for litigation crowdfunding, similar to equity crowdfunding.  The LexShares platform connects accredited investors with plaintiffs and attorneys looking for funding.  Investors can buy a stake in the outcome of a lawsuit by giving plaintiffs, often times business owners, the capital they need to pay legal fees or operate their business while in the midst of litigation.

Mirakl: Mirakl is a French software developer that provides a SaaS-based online marketplace solution called Mirakl Marketplace Platform© .  Mirakl Marketplace Platform© is used by all kind of retailers, B2B or B2C, to create, launch and operate their own online marketplace and increase their online business.

Extra Space Storage: Extra Space Storage () is a US provider of self-storage units, with over 1,415 facilities across 38 states plus Washington, D.C. and Puerto Rico.  Headquartered in Cottonwood Heights, Utah, Extra Space Storage is the second largest owner and/or operator of self-storage properties in the United States, as well as the largest self-storage management company.

SpareFoot: SpareFoot is an Austin-based company that provides listings for self-storage units.  The company was originally a person-to-person model, similar to Airbnb, that later developed into a marketplace for self-storage.  The company now facilitates self-storage rentals between consumers and storage operators.  The company was profiled as one of "America's Most Promising Startups" by Bloomberg Businessweek in 2011.

9flats: 9flats is an online marketplace and hospitality service, enabling people to lease or rent short-term lodging including vacation rentals, apartment rentals, homestays, hostel beds, or hotel rooms.  The company does not own any lodging; it is merely a broker and receives percentage service fees (commissions) from both guests and hosts in conjunction with every booking.

Airbnb: Airbnb is an online marketplace and hospitality service, enabling people to lease or rent short-term lodging including vacation rentals, apartment rentals, homestays, hostel beds, or hotel rooms.  The company does not own any lodging; it is merely a broker and receives percentage service fees (commissions) from both guests and hosts in conjunction with every booking.  It has over 3,000,000 lodging listings in 65,000 cities and 191 countries, and the cost of lodging is set by the host.

Luxify: Luxify is a Hong Kong-based company, providing an online marketplace for new, vintage and pre-owned luxury goods.  The company manages an online marketplace website in which members buy and sell a variety of luxury goods.  It was Hong Kong's first online marketplace to buy and sell luxury goods The site has over 15 categories, including real estate, watches, jewelry, luxury cars, yachts, aircraft, luxury handbags, art, collectibles, furniture, antiques and fine wines & spirits.  As of March 2016, the website had over 22,000 listings from luxury dealers from all over the world, making a US$18.6 billion marketplace.  Luxify also has offices in Singapore and London and local partners in Shanghai and Jakarta.

CurrencyTransfer.com: CurrencyTransfer.com is a British company operating an online marketplace for businesses and private clients that acts as a foreign exchange aggregator.  The company was founded in 2014 and has its headquarters in London.  CurrencyTransfer.com was named "Startup of the Week" by Wired UK.  It is the first company to provide an online marketplace and booking platform of multiple non-bank, FCA regulated foreign currency exchange suppliers.

Wimdu: Wimdu is an online marketplace and hospitality service, enabling people to lease or rent short-term lodging including vacation rentals, apartment rentals, homestays, hostel beds, or hotel rooms.  The company does not own any lodging; it is merely a broker and receives percentage service fees (commissions) from both guests and hosts in conjunction with every booking.  The company is considered to be one of the major competitors of Airbnb and a key vendor of the global vacation rental market.

Online marketplace: An online marketplace (or online e-commerce marketplace) is a type of e-commerce site where product or service information is provided by multiple third parties, whereas transactions are processed by the marketplace operator.  Online marketplaces are the primary type of multichannel ecommerce and can be described as a "simple and convenient portal" to streamline the production process.

Supporting paragraphs: SpareFoot Airbnb
Answer: Airbnb