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Nextdoor Holdings Inc is a neighborhood network that connects Verified Neighbors to the people, places, and information that matter in their local communities. The platform provides locally relevant content and services, including news, real-time safety alerts, neighbor recommendations, for sale and free listings, and events, supporting high-intent local engagement. Its platform is powered by geospatial technology and a proprietary advertising system that enables businesses of all sizes to reach audiences with a local focus. The company supports a broad ecosystem of partners, including small businesses, national brands, publishers, and civic and government agencies. It operates in the United States, which generates the majority of its revenue, as well as in International markets.

Alphabet is a holding company that wholly owns internet giant Google. The California-based company derives slightly less than 90% of its revenue from Google services, the vast majority of which is advertising sales. Alongside online ads, Google services houses sales stemming from Google's subscription services (YouTube TV and YouTube Music, among others), platforms (sales and in-app purchases on Play Store), and devices (Chromebooks, Pixel smartphones, and smart home products such as Chromecast). Google's cloud computing platform accounts for roughly 10% of Alphabet's revenue. The firm's investments in up-and-coming technologies such as self-driving cars (Waymo), health (Verily), and internet access (Google Fiber) make up the rest.