# Sigma AI

> Sigma AI is the trust infrastructure layer for GenAI — delivering independent evaluation, high-fidelity data, and human intelligence to teams building and deploying AI systems. Headquartered in Madrid with offices in London and Miami; ISO 27001 and SOC 2 Type 2 certified; 70,000+ vetted experts across 700+ languages.

## Pages

- [Home](/): Overview of Sigma AI's trust infrastructure for GenAI.
- [Why Sigma](/why-sigma): What sets Sigma apart — people, process, and security.
- [About](/about): Company background, leadership, and mission.
- [Contact](/contact): Get in touch with the Sigma AI team.
- [FAQs](/faq): Common questions about Sigma's products, services, and pricing.
- [Security & Privacy](/security-and-privacy): ISO 27001, SOC 2 Type 2, GDPR, and our secure facilities.
- [Corporate Responsibility](/corporate-responsibility): ESG commitments and ethical AI practices.

## Platform

- [Agent Evaluation](/platform/agent-evaluation): Independent evaluation of GenAI agents and models.
- [Human-in-the-Loop](/platform/human-in-the-loop): Expert human review and feedback at scale.
- [Data Foundations](/platform/data-foundations): Data sourcing, labeling, and annotation services.
- [Advisory](/platform/advisory): Compliance and advisory services for AI deployment.

## For

- [Frontier Labs](/for/frontier-labs): Solutions for frontier model developers.
- [Regulated Industries](/for/regulated-industries): Solutions for healthcare, finance, and the public sector.
- [Scale-ups](/for/scale-ups): Solutions for growth-stage AI companies.

## Resources

- [Blog](/resources/blog): Articles on AI evaluation, data quality, and trust.
- [Case Studies](/resources/case-studies): How clients use Sigma AI.
- [Whitepapers](/resources/whitepapers): In-depth research and technical papers.
- [Ethical AI](/resources/ethical-ai): Our perspective on responsible AI.

## Optional

- [Cookie Policy](/cookie-policy)
- [Data Protection](/data-protection)
- [Ethics Channel](/ethics-channel)