Founded in Hyderabad in 1994, Sigma Advanced Systems is a global integrated defence and aerospace company with presence in India and the UK. 

We are among the leading providers for critical defense solutions & sub-systems and aero engine & airframe fabrications and components. Headquartered in India, we are trusted by the world's most demanding programmes through long-term agreements and delegated responsibilities.

We combine front-end proximity to Western markets with India's manufacturing depth to deliver high-complexity, safety-critical components, assemblies, and systems across aerospace, defence, and emerging technologies.

Sigma Advanced Systems

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