Sigasi is a European software company developing deterministic semantic HDL technology for FPGA and ASIC teams. Sigasi Visual HDL helps engineers and AI coding agents validate VHDL, Verilog, SystemVerilog and mixed-language projects in full context.

Its semantic engine provides insight into hierarchy, libraries, dependencies, types, scopes and interfaces through VS Code, Cursor, Codex, MCP, CLI and CI. Sigasi does not generate RTL and is not tied to a proprietary AI model or EDA suite. It grounds the customer’s chosen coding agent in project truth, validates proposed changes and keeps engineers in control.

Through model neutrality, mixed-language breadth and local analysis, Sigasi supports a resilient, competitive and sovereign European semiconductor design ecosystem.