- Company
- Nextdoor
- Role
- CEO
- Est. Net Worth
- $100 Million (Est.)
- Stage
- Established
- Industry
- Finance
Sarah Friar
CEO at Nextdoor
About
Sarah Friar is one of the most accomplished financial leaders in Silicon Valley, having served as CFO of Square during its critical growth years and IPO before becoming CEO of Nextdoor, the neighborhood social network that connects over 80 million users across 11 countries. At Square, Friar was instrumental in transforming the company from a mobile payments startup into a comprehensive financial services platform, overseeing its successful IPO and helping architect the expansion into lending, payroll, and cryptocurrency services that established Square as a major fintech player. Her move to the CEO role at Nextdoor demonstrated the increasing recognition that financial leadership experience — with its emphasis on operational discipline, capital allocation, and strategic planning — is excellent preparation for running a technology company. Born and raised in Northern Ireland during the Troubles, Friar has spoken movingly about how growing up in a divided community shaped her belief in the power of local connection and neighborly trust — values that directly inform Nextdoor's mission.
Current Company
Nextdoor — CEO
From Belfast to Silicon Valley's C-Suite
Sarah Friar's path from a childhood in Northern Ireland during the Troubles to the corner offices of Silicon Valley's most consequential companies is one of the most compelling leadership stories in modern technology. Growing up in Sion Mills, a small village near the border with the Republic of Ireland, Friar witnessed firsthand the devastating effects of community division — an experience that would later shape her conviction that local connection and neighborly trust are essential foundations of healthy societies. She studied engineering at Oxford and earned an MBA from Stanford before beginning a career in finance that would take her through Goldman Sachs, McKinsey, and Salesforce before landing at Square, where she would establish herself as one of the most respected financial executives in the technology industry.
At Square, Friar served as CFO during a period of explosive growth, overseeing the company's IPO and helping architect its expansion from a mobile card reader into a comprehensive financial services platform. Her financial discipline and strategic acumen were instrumental in navigating the company through the challenges of rapid scaling while maintaining the unit economics that would eventually make Square profitable. Her ability to translate complex financial concepts into narratives that investors, employees, and partners could understand and rally behind established a template for the modern technology CFO — not just a guardian of the balance sheet but a strategic partner who shapes the company's direction and communicates its vision to the market.
Leading Nextdoor Through Connection and Crisis
Friar's decision to leave the CFO role at one of Silicon Valley's hottest companies to become CEO of Nextdoor — a social network that lacked the growth trajectory and cultural cachet of its peers — surprised many industry observers. But the move reflected a deeply personal conviction: Friar saw in Nextdoor's mission of connecting neighbors an opportunity to address the social disconnection and community fragmentation that she had experienced growing up in a divided society. Under her leadership, Nextdoor expanded internationally, launched new features designed to facilitate neighborhood-level mutual aid and civic engagement, and navigated the COVID-19 pandemic — a period during which the platform became an essential tool for communities organizing to support vulnerable neighbors, share information, and coordinate local responses to the crisis.
Friar has been candid about the challenges of running a social network that must balance openness with safety — Nextdoor's neighborhood-focused model creates intimate digital spaces where racism, xenophobia, and exclusion can flourish alongside genuine community connection. Under her leadership, the company implemented anti-profiling policies and content moderation practices designed to ensure that the platform promotes inclusion rather than reinforcing the worst tendencies of insular communities. Her approach reflects a nuanced understanding that technology platforms are not neutral tools — they shape the communities they serve, and the leaders of those platforms bear responsibility for the social dynamics their products enable and amplify.