visual-development
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FlutterFlow
FlutterFlow is a Mountain View-based visual development platform built on Google's Flutter framework. Two ex-Google engineers built it so designers, founders, and engineers could ship native mobile and web apps without writing the boring parts. Today it has more than 1.3 million users in 200+ countries, around 10,000 paying customers, and an AI layer that turns prompts into pages.
Abel Mengistu
Abel Mengistu is the cofounder and CEO of FlutterFlow, the low-code visual app builder that has enabled over 2 million users to create production-ready Flutter applications without deep coding expertise. A former Google senior software engineer who worked on Google Maps and ATAP hardware, he co-founded FlutterFlow in 2020 with Alex Greaves after a failed restaurant-recommendation startup taught them the real bottleneck was app development complexity. Accepted into Y Combinator's Winter 2021 batch after applying past the deadline, they famously survived 'No-sleep November' to build FlutterFlow 1.0 in a single month. The company raised a $25.5M Series A from GV (Google Ventures) in January 2024, has grown to 173 employees, and in 2025 launched Dreamflow - an AI-powered builder that generates production-ready app screens in roughly 10 seconds.
Alex Greaves
Alex Greaves is the Co-Founder and CTO of FlutterFlow, a visual low-code/AI-powered app development platform he co-founded in 2020 alongside fellow ex-Googler Abel Mengistu. Built on Google's Flutter framework, FlutterFlow has grown to serve over 2 million users across 200+ countries, backed by $25.5M in Series A funding led by GV and Gradient Ventures at a ~$170M valuation. A Stanford physics and CS grad who honed his craft on Google Maps' machine learning team, Greaves now leads a platform that lets developers and non-developers alike ship native iOS, Android, and web apps in a fraction of traditional development time.
Sergie Magdalin
Sergie Magdalin is the co-founder and Chief Experience Officer of Webflow, the visual web development platform that lets designers build production-ready websites without writing code. Alongside his brother Vlad Magdalin and Bryant Chou, Sergie — a former freelance graphic designer and UX designer — built Webflow from a rejected Y Combinator application into a $4B company with over 3.5 million users. His design sensibility shaped Webflow's core UX, including pioneering visual interaction tools and a responsive design system that democratized professional web publishing.