Build38 is an application security company focused on protecting mobile applications for 'the real world.' Rather than relying only on traditional approaches, Build38 provides in-app protection, runtime monitoring, and threat intelligence designed to secure mobile applications across their full lifecycle and defend against evolving threats. The platform is positioned as going beyond RASP by combining in-app, cloud, and AI technologies to deliver mobile app protection in real time.
Build38 is headquartered in Munich, Germany, with additional locations listed in Barcelona and Singapore. The company was founded in 2018 and is described as a private company with a reported employee range of 51–200. On March 2, 2026, OneSpan and Build38 came together, and Build38's technology is described as integrated into OneSpan’s mobile app security offerings, extending protection beyond login to secure mobile sessions, devices, and interactions.
