As of July 2026, there are 56 SaaS companies based in Seoul. They have combined revenues of $5.4B and employ 7.8K employees. They've raised $2B in capital and serve 16.7M customers combined.
Sorting: Highest -> Lowest
Showing 10 of 16 companies ranked by annual revenue.
Seoul, Seoul, South Korea
Provider of smart signage open platform intended to provide any digital signage. The company's smart signage open platform, CLOUDCAST is cloud based, enabling users to build, manage, organize their digital signage in any venue.
Seoul, South Korea
Engram is an AI-powered proofreader, paraphraser, and translator optimized for non-native English speakers. Our proprietary AI is trained to catch grammar errors and awkwardness in non-native writing that other writing tools can't. Accurate, context-based edits give you more natural-sounding text. Perfect for students and global professionals studying and working in English who want to write better, faster, stress-free.
Seoul, South Korea
Developer of an innovative software designed to focus on internet infrastructure. The company's innovative software, STON Edge Server is an off-the-shelf software platform for mission critical online services, enabling users to get not only fast speed but also delivery standards and domain-specific features for each and every online service.
Seoul, South Korea
Developer of a software designed to build and deploy machine learning models. The company's software easily integrates machine learning models in minutes with API and offers intuitive data cleansing and analysis, enabling developers and data scientists to use machine learning technology without requiring an in-depth knowledge.
Seoul, South Korea
Provider of a platform intended to provide consulting services for IoT sensor configuration. The company offers a platform specializes in SW and HW IoT technologies and offers Thing+ which helps to build Internet IoT service quickly and easily based on the IoT cloud platform enabling the customers easily and quickly deploy IoT services at low cost.
Seoul, South Korea
We provice cloud service using AI to manage any kind of document. AI as a SaaS
Seoul, South Korea
Provider of a real-time information hacking detection platform intended to detect and prevent hacking. The company's real-time information hacking detection platform provides a log analysis and response measures, and depending on the settings automatically block dangerous IP through its web and mobile application enabling enterprises to prevent security breach and secure their systems.
Seoul, South Korea
Estmob Inc is based in Seoul, South Korea and is the brains behind Send Anywhere. The team started as a few engineers and businesspeople who wanted to revolutionize the way we transfer data and has expanded into so much more than that. Send Anywhere takes an easy, quick, and unlimited approach to file sharing. Easily, we allow you to send any file type, across any platform, all without logging in or signing up. Quickly, given network conditions, we find the optimal transfer path to ensure your data reaches its location in the most efficient way possible. As for unlimited, we allow you to send any size file, as many times as you want, all for free.
Seoul, Seoul-t'Ukpyolsi, South Korea
Developer of a tree planting application. The company offers a virtual tree planting game that encourages users to plant more real trees in the world.
Each Tuesday, we reverse-engineer a real SaaS company's revenue, profit, CAC, funnels, and its top growth tactic.
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