Mescius
Build powerful applications with Mescius — advanced developer tools for creating modern, data-driven software. ✔ Build interactive UI components ✔ Create reports and spreadsheets ✔ Accelerate application development
Overview
MESCIUS inc. (pronounced mesh-ē-us, formerly widely known as GrapeCity) is a premier global software developer brand specialized in building enterprise-grade UI components, reporting frameworks, spreadsheet libraries, and document APIs.
Originating from roots established in Sendai, Japan, the company partnered with iSigma Capital Corporation and rebranded to MESCIUS in November 2023. Today, the brand serves hundreds of thousands of corporate developers—including roughly 75% of Fortune 500 companies—providing them with pre-built, high-performance UI blocks so internal software engineering teams can focus on core application logic rather than rebuilding standard tools like tables or charts from scratch