Airbnb was founded in 2008 in San Francisco by Brian Chesky, Joe Gebbia, and Nathan Blecharczyk — three designers and engineers who rented air mattresses to conference attendees and discovered that the idea could scale into a global marketplace. The company grew explosively through the 2010s, disrupting the hotel industry by enabling anyone with a spare room or second property to become a hospitality provider. After a brutal 2020 that forced a 25% workforce reduction and the abandonment of non-core projects, Airbnb went public in December 2020 at a $47B valuation and pivoted sharply toward profitability. FY2025 revenue reached $12.2B with approximately 8,200 employees, $2.5B in net income, and a market capitalization around $80B. The platform now hosts over 8 million listings across 220-plus countries, served by 5.5 million hosts who have collectively welcomed more than 2.5 billion guest arrivals. The business model charges service fees on bookings without owning real estate, creating high margins at scale. The competitive position rests on brand recognition so strong it has become a verb, network effects between hosts and guests, trust infrastructure built on billions of reviews and identity verifications, and global supply diversity spanning shared rooms to luxury villas. Strategic priorities include expanding Services and Experiences to capture more of the trip, entering luxury travel, using AI for personalized trip planning, and navigating the regulatory challenges that threaten supply in cities from New York to Barcelona.