Writesonic

Software DevelopmentCalifornia, United States51-200 Employees

Writesonic is a San Francisco, California-based software development company with 51-200 employees that offers a GEO/AEO platform to track a brand's AI search visibility, identify where competitors outperform, and implement fixes such as creating content, refreshing pages, earning citations, and engaging on Reddit. In partnership with Microsoft, Writesonic supports brands in improving their presence on AI search platforms through Generative Engine Optimization. The GEO platform reveals which high-authority sites AI trusts, what content is cited and why, and how to fix technical barriers blocking AI crawlers, based on real AI search volumes from 120M+ conversations; the company also provides AI agents that automate marketing workflows including SEO, content strategy, creation, optimization, and distribution. Writesonic serves more than 13,000 marketers and has over 15,000 five-star reviews across G2, Trustpilot, and Capterra. The company is backed by Y Combinator and investors including HOF Capital, Rebel Fund, Soma Capital, and Amino Capital, and has launched multiple GEO-related features and products such as Bansi AI, the GEO Platform, AI Search Volume, Prompt Explorer, Botsonic, and SEO AI Agent.

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