E-Sharp AB is a Swedish engineering company specializing in electronics development, production test systems, FPGA design, and AI-assisted engineering tools. Its work focuses on making complex electronics development and verification processes more systematic, traceable, and scalable.

E-Sharp develops Probe, an electronics design review system that creates a structured representation of schematics, bill-of-materials data, manufacturing documentation, and component datasheets. Instead of sending an entire design to a language model and asking it to look for problems, Probe retrieves the specific parts of the design and documentation needed to answer each question and links every conclusion back to its supporting source.

The system is intended to identify classes of design error that are often beyond the reach of conventional electrical rule check and design rule check tools.