Nextdoor Holdings, Inc. operates as a holding company with interest in operating a social network site connecting with neighborhood and businesses. The company is headquartered in San Francisco, California and currently employs 704 full-time employees. The company went IPO on 2021-03-24. The firm's platform, Nextdoor is a neighborhood network that connects neighborhood stakeholders, including neighbors, businesses and public services, online and in real life. Neighbors and organizations include small and mid-sized businesses, brands, public agencies, and nonprofits, around the world. Its platform enables neighbors and organizations to build an Active Valued Community, an engaged community of neighbors, businesses, and public services that users can trust and depend on to exchange valuable information, goods, and services. The company offers differentiated advertising solutions in a local context that allows advertisers of all sizes to reach the right neighbor, at the right time. Advertisers can engage with their customers in multiple surfaces on its platform, including Newsfeed, In-App Digest and Email Digest and For Sale & Free. Its advertisement formats include sponsored posts, audio, and others.