Tandem is the AI knowledge layer for the hardware industry. Arjun, Lohit, Lokesh and I left our jobs at Boeing, Rolls Royce, and AWS got backed by Antler and built Tandem on three pillars:

• Integration: Integrate into CAD, PDM/PLM and file systems. This is used to understand the parts, assemblies, drawings, and supporting docs in your design flow and link the associated metadata to our observability layer.
  
  

• Observability: Passive capture of design actions and decisions across sessions. See event timelines, diffs, rationale, doc completeness meters, and audit trails that map to real workflows.
  
  

• Assist: An AI Assistant that draft design reports, meeting notes, design summaries, BOM notes, and “why” explanations. Ask Tandem why a fillet changed, which tolerance drove a redesign, or what changed since Rev B and get cited answers.

With light configuration, these pillars provide engineers with instant context, clean handoffs, and documentation that writes itself, without changing how you work.