# SAND
> Physical AI for Critical Infrastructure
## About
SAND builds Symmetri, the Physical AI platform for critical infrastructure. Deployed in 18+ countries across water, energy, telecom, healthcare, and government. Zero mission-critical failures.
## Platform
Symmetri is a three-layer operating system: Sense (telemetry integration), Analyze (consequence modeling), Act (autonomous decision support). Designed for rapid deployment in weeks, not months.
## Key Frameworks
- Autonomy Levels: 4-stage decision automation framework (Human Required → Assisted → Supervised → Full Automation). Scored on consequence severity, model confidence, reversibility, decision frequency.
- Consequence Models: Structured representation of how interventions propagate through complex systems. The engine between prediction and decision.
- Operational Maturity Diagnostic: 3-state framework (Dark → Noisy → Intelligent) scored on visibility, integration, understanding, actionability.
## Sectors
Water utilities, wastewater, telecommunications, energy, healthcare, disaster recovery, smart cities, government.
## Key Pages
- [Platform](https://www.sandtech.com/platform/) — Symmetri overview
- [Consequence Models](https://www.sandtech.com/consequence-models/) — the decision-intelligence layer
- [Autonomy Levels](https://www.sandtech.com/autonomy/) — the 4-level automation framework
- [Operational Diagnostic](https://www.sandtech.com/operational-diagnostic/) — maturity self-assessment
- [Request Demo](https://www.sandtech.com/request-demo/)
## Leadership
- Offices: Palo Alto, New York, London, Cape Town
- Leadership principles: Choose Growth, Raise the Bar, Pioneer, Do Hard Things, Get Stuff Done
## Contact
- Demo: https://www.sandtech.com/request-demo/
- Partners: https://www.sandtech.com/partner-ecosystem/
- Website: https://www.sandtech.com/
## Last Updated
2026-07-06