The AI platform for hardware engineering

Requirements, design changes, reviews, and decisions connected in one system.
Built by Mechanical & AI Engineers from…

Built for product design, manufacturing, and hardware companies

Unlock your design intent.
Design Sessions
Integrated into your CAD, Tandem watches and captures CAD events as you work. Related edits are grouped into design sessions that show what changed, why it changed, what was affected. That gives teams a usable record of engineering work for reviews, handoffs, and future changes.
A documentation dashboard with a search bar, documentation entries with dates and file counts, and options to download, upload, or delete files. Technical specifications and executive summaries are shown for selected entries, emphasizing organized engineering data management.
Requirements Workspace
Instead of managing requirements in a separate system that drifts out of date, Tandem keeps them linked to live design changes, verification evidence, and review context so teams can understand impact early and maintain traceability as the product evolves.


A documentation dashboard with a search bar, documentation entries with dates and file counts, and options to download, upload, or delete files. Technical specifications and executive summaries are shown for selected entries, emphasizing organized engineering data management.
Review & Context
Run design reviews in the actual design context. Instead of reviewing hardware through screenshots, decks, and disconnected comments, Tandem keeps feedback attached to the exact geometry, requirement, or issue being discussed so everyone can see the full context behind a decision.
A documentation dashboard with a search bar, documentation entries with dates and file counts, and options to download, upload, or delete files. Technical specifications and executive summaries are shown for selected entries, emphasizing organized engineering data management.
Security
Tandem supports SOC 2, ITAR-compatible environments, and self-hosted or GovCloud deployment for sensitive hardware programs.



Computer screen displaying a SolidWorks 3D modeling interface, with an engineer designing a mechanical assembly. The center shows a detailed metallic and red component, while the right side features the Tandem Watch panel, including Tandem Docs and Tandem Assistant sections for enhanced documentation and design support. The left panel lists model components, and toolbars are visible at the top, highlighting a technical CAD workflow.

Assist

Stay in flow, let Tandem assist.

Catch product requirements, compliance issues, and best practices as you design & manufacture.

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From live engineering context to formal system records

Coming soon… At any milestone, teams can generate the formal packet needed for approval, traceability, or change control. Export into QMS and PLM while preserving a link back to the full Tandem context.
This image is showing that Tandem integrates with Onshape by PTC
This image is showing that Tandem integrates with Solidworks
This image is showing that Tandem integrates with Siemens NX
This image is showing that Tandem integrates with Autodesk Inventor
This image is showing that Tandem integrates with Dassault Systemes Catia

Why teams adopt Tandem

Keep requirements tied to change

When a design changes, Tandem helps teams see which requirements, tests, and downstream decisions are affected.

Keep requirements tied to change

When a design changes, Tandem helps teams see which requirements, tests, and downstream decisions are affected.

Make rationale easier to recover

Design history, review notes, and engineering decisions stay attached to the relevant work, so teams can understand why something exists without a scavenger hunt.

Make rationale easier to recover

Design history, review notes, and engineering decisions stay attached to the relevant work, so teams can understand why something exists without a scavenger hunt.

Help teams decide with context

Tandem surfaces relevant past decisions, constraints, and open questions at the moment of work, so teams spend less time rehashing old debates.

Help teams decide with context

Tandem surfaces relevant past decisions, constraints, and open questions at the moment of work, so teams spend less time rehashing old debates.

Built for today’s workflows. Designed for agentic engineering.

Tandem turns fragmented engineering activity into structured engineering memory that compounds over time.