What Sigma Advanced Systems does

Sigma Advanced Systems is an integrated aerospace and defence manufacturer headquartered in Hyderabad, India, listed on BSE (532408) and NSE (formerly Megasoft Limited, rebranded in February 2026). The company operates eight manufacturing facilities across India (Hyderabad, Bangalore, forthcoming Sri City) and the United Kingdom (Bulwell, Coventry, Ferndown, Hinckley, Rustington) and employs more than 700 people globally, with FY26 revenue from operations of Rs 492 crore and net profit of Rs 268 crore.

The business operates two interlocking segments. The defence segment supplies missile sub-systems (LRSAM/MRSAM, AKASH, INVAR, Konkurs), avionics for IJT/ALH, SU-30, Hawk-132, and MIG-27 platforms, naval systems including torpedo actuation control, multi-range radar and electronic warfare portfolios (1.2km to 45km), and a full counter-UAS product family powered by the proprietary SkyOS C5ISRT AI platform with Kestrel and Garunox unmanned aerial systems. The aerospace segment provides complex multi-axis machining, fabrication and welding, systems integration, and Nadcap-accredited surface treatments as a Tier-1 supplier under the Nasmyth Group brand. The combined entity holds AS9100D, Nadcap, EASA Part 145, FAA Repair Station, DOAS, DIN 2303, JOSCAR, and DRDO-lab approvals.

The revenue model is hardware sales executed through long-cycle B2B contracts with three primary customer groups: Indian defence ministries and PSUs (DRDO, HAL, BEL, BDL, Indian armed forces), global aerospace OEMs (Rolls-Royce under a seven-year £300M agreement, GE Aerospace, Safran, Airbus, Boeing, Lockheed Martin), and international defence export customers (a North American client for M107 shell bodies and M557 fuzes totaling over Rs 315 crore in 2026 contracts). The Indrajaal Drone Defence partnership provides counter-drone systems reach and EU/NATO access via Nasmyth. Capital allocation in 2026 has been decisively defensive-to-offensive: divestiture of the Extrovis pharma stake, two acquisitions (Nasmyth for Rs 213 crore and AS Strategic for Rs 30 crore), and order wins aggregating over Rs 4,500 crore within twelve months.

Name

Sigma Advanced Systems

Legal name

Sigma Advanced Systems Limited

Website

https://sigmaadvsys.com

Company type

Public

Founded year

1994

Operating status

Operating

Short description

Sigma Advanced Systems is a Hyderabad-headquartered, publicly listed integrated aerospace and defence manufacturer serving global OEMs (Rolls-Royce, GE Aerospace, Airbus) and Indian defence PSUs with precision components, missile/avionics/naval sub-systems, counter-UAS platforms, and UK-based Nasmyth aerospace manufacturing capabilities.

Ownership category

akta.pro rank

Product category

Aerospace & Defence Manufacturing

NAICS

Aerospace Product and Parts Manufacturing (33641), Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413), Guided Missile and Space Vehicle Manufacturing (336414), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Aircraft Engines & Engine Parts (3724), Guided Missiles & Space Vehicles & Parts (3760), Ordnance & Accessories, (No Vehicles/Guided Missiles) (3480), Aircraft (3721)

akta.pro primary industry

Military Aircraft Structures, Airframes & Composites (IMABAMAH)

akta.pro secondary industries

Military Avionics, Mission Computers & Flight Controls (IMABAMAE), Artillery, Mortar & Tank Munitions (IMABAHAH), Air Defense Missiles & Interceptors (IMABAHAD), VTOL & Hybrid UAV Platforms (IMABAIAC)

Keywords

• Aerospace component manufacturing
• Defence systems manufacturing
• Counter-UAS systems
• Precision engineering services
• Missile sub-systems

Headquarters

HQ city

Hyderabad

HQ country

India

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Aerospace Components Manufacturing: Long-term supply agreements with major aerospace OEMs including Rolls-Royce for safety-critical aero-engine components and assemblies through India-UK dual-source manufacturing model. Seven-year agreement with Rolls-Royce valued at approximately £300 million for precision aerospace components.
2. Defence Export Contracts: Export of artillery shell components, filled fuzes, and defence sub-systems to international customers including North American clients. Includes US$21.97 million artillery shell bodies contract and US$11.4 million fuze export order.
3. Indian Defence Ministry and PSU Contracts: Built-to-spec systems supply for strategic Indian defence programmes covering missile systems, naval platforms, and airborne applications through Bharat Dynamics, Hindustan Aeronautics, and DRDO establishments.
4. Counter-UAS and Defence Systems: Supply of radar, electronic warfare, unmanned aerial systems, missile sub-systems, avionics, and naval systems for Indian and global defence programmes.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Sigma Advanced Systems manufactures precision-engineered aerospace components and mission-critical defence systems for global OEMs and armed forces. Its aerospace division produces complex-machined, fabricated, and surface-treated components for Rolls-Royce, GE Aerospace, Airbus, Boeing, Safran, and Lockheed Martin, while its defence division supplies counter-UAS systems, unmanned aerial systems, missile sub-systems, radar and electronic warfare systems, avionics, and naval sub-systems to the Indian Ministry of Defence, DRDO, and defence public sector undertakings. The company operates a dual-source India-UK manufacturing platform through its wholly-owned subsidiary Nasmyth Group.

Product overview

Sigma Advanced Systems is an integrated defence and aerospace company offering a unified platform-plus-capabilities model. Its defence portfolio spans a Counter-UAS product family (Infra, Urban, Military, Ranger, Trooper, Border, Combat, Zombee, Maritime, Repulsor) driven by the AI-orchestrated SkyOS platform; Unmanned Aerial Systems (Kestrel long-range surveillance UAS, Garunox armed UAS); Missile Systems sub-systems (detonation modules, servo controllers, actuators for INVAR, LRSAM/MRSAM/AKASH missiles); Radar & Electronic Warfare systems (1.2km to 45km range radars, GSR HLS-16); Avionics (flight data recorders, display units, communication controllers for IJT/ALH, SU-30, Cheetah/Chetak, Hawk-132, MIG-27); and Naval Systems (torpedo actuation controls, cloud LiDAR, power distribution). Its aerospace division (operated through Nasmyth Group, UK) provides Complex Machining, Fabrication & Welding, Systems Integration, and Surface & Metal Treatments as a full-spectrum manufacturing partner to Rolls-Royce, GE Aerospace, Safran, Airbus, Boeing, and Lockheed Martin. The company serves both Indian defence programmes (DRDO, HAL, BEL, Bharat Dynamics) and global export customers in aerospace and defence.

Differentiator

Problem solved

Functional benefit

Brands

• SkyOS: AI-driven C5ISRT platform powering counter-UAS autonomous drone defence capabilities
• Kestrel
• Garunox

Products and services

• Counter-UAS Product Family (Infra, Urban, Military, Ranger, Trooper, Border, Combat, Zombee, Maritime, Repulsor)

Quantifiable outcome

• ₹208 crore export order for 40,000 artillery shell bodies demonstrating precision manufacturing at scale
• +3 more outcomes

Named customers14 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

13 partnerships are on record, tiered flagship and core.

• Rolls-RoyceflagshipStrategic or Co-development Partner · 27 April 2026Seven-year long-term agreement valued at approximately £300 million (Rs 3,800 crore) for manufacturing and supply of high-precision, safety-critical aerospace components and assemblies. Contract establishes dual-source manufacturing model leveraging facilities in India and UK, providing predictable long-term revenue while reducing supplier risk for Rolls-Royce. Positions Sigma as integrated global manufacturing platform within Rolls-Royce's aerospace supply chain.
• AS Strategic (Delhi-based)coreTechnology or Integration · 10 February 2026Acquisition of AS Strategic for approximately Rs 30 crore to strengthen Sigma's move from component manufacturing toward systems integration and expand direct participation in European defence programmes. Deal provides access to AS Strategic's joint ventures and service partnerships with European defence OEMs including AbraWorks, Escribano, and Arquimea, along with order book of over Rs 315 crore for 2026 tied to ongoing European programmes. Sigma plans to shift AS Strategic's historically outsourced manufacturing to Indian facilities.
• Indrajaal Drone DefencecoreStrategic or Co-development Partner · 6 February 2026Long-term strategic partnership where Sigma supplies core radar and electronic warfare sub-systems for Indrajaal's counter-drone systems. Agreement expected to generate Rs 2.5 billion in contracts during first year. Provides exclusive supply of mission-critical systems and extends Indrajaal's market access into EU and NATO defence ecosystem through Sigma's European operations via Nasmyth. Reinforces India's domestic capability in counter-UAS systems while accelerating deployments across defence and critical infrastructure sectors.
• Nasmyth Group (UK-based)flagshipTechnology or Integration · 14 January 2026Acquisition of UK-based Nasmyth Group for Rs 213 crore, making Sigma the first Indian aerospace and defence company to establish truly global presence. Transaction provides immediate access to long-term contracts with leading OEMs in UK and Europe through Nasmyth's Tier-1 precision engineering status. Sigma allocated additional Rs 450 crore for capability and capacity expansion. Nasmyth serves major aerospace and defence OEMs including Rolls-Royce, GE Aerospace, Boeing, and Airbus.
• Bharat Dynamics Limited (BDL)coreStrategic or Co-development PartnerStrategic programme partnership for supply of built-to-spec missile sub-systems including surface-to-air missile programmes, anti-tank missile programmes, and anti-radiation missile programmes. Part of indigenous Indian defence manufacturing ecosystem.
• Hindustan Aeronautics Limited (HAL)coreStrategic or Co-development PartnerStrategic programme partnership for supply of avionics and aerospace components for rotary-wing platforms and other aircraft programmes. Integral part of India's indigenous aerospace manufacturing ecosystem.
• Defence Research and Development Organisation (DRDO)coreStrategic or Co-development PartnerPartnership for advanced technology programmes including missile systems, electronic warfare, and indigenous defence development. DRDO-approved supplier for multiple defence establishments and strategic programmes.
• Bharat Electronics Limited (BEL)coreStrategic or Co-development PartnerPartnership for radar and electronic warfare sub-systems integration. Collaborative engagement in India's defence electronics ecosystem.
• GE AerospacecoreOEM/ Whitelabel/ Licensing PartnerAerospace OEM partnership for aero-engine and aerostructure components manufacturing. Part of Nasmyth Group's existing OEM relationships integrated into Sigma's global platform.
• SafrancoreOEM/ Whitelabel/ Licensing PartnerAerospace OEM partnership for precision aerospace components and assemblies. Supported through Nasmyth Group's established supplier relationships in European aerospace sector.
• AirbuscoreOEM/ Whitelabel/ Licensing PartnerAerospace OEM partnership for aerostructure components and assemblies through Nasmyth Group's European manufacturing network.
• BoeingcoreOEM/ Whitelabel/ Licensing PartnerAerospace OEM partnership for aerospace components through Nasmyth Group's global supply chain relationships.
• Lockheed MartincoreOEM/ Whitelabel/ Licensing PartnerAerospace and defence OEM partnership for advanced aerospace components through Nasmyth Group's quality-certified manufacturing capabilities.

Scale indicators19 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Data Patterns (India): Indian listed defence electronics company building radar, electronic warfare, avionics, communications and COTS subsystems for DRDO/HAL/BEL and the Indian armed forces. Closely comparable on indigenous defence electronics, missile/avionics sub-systems and Indian defence PSU customer mix.
• MTAR Technologies: Indian precision-engineering company building mission-critical components and assemblies for aerospace, defence, nuclear and clean-energy customers including DRDO, ISRO, HAL and BHEL. Comparable in precision manufacturing, defence sub-systems and public-listed Indian defence manufacturing profile.
• Tata Advanced Systems: Indian aerospace and defence manufacturing arm of the Tata Group, supplying aerostructures, aero-engine components, missiles, UAVs and defence electronics to global OEMs and the Indian MoD — directly comparable on customer mix (Lockheed Martin, Boeing, Airbus, DRDO, HAL) and Tier-1 supplier positioning.
• Paras Defence and Space Technologies: Indian listed defence engineering company supplying optics, radar subsystems, electronic warfare, and aerospace components to DRDO, HAL, BEL and international customers. Comparable on multi-product defence-electronics and aerospace-component portfolio and Indian defence-export positioning.
• DroneShield: Australia-listed counter-UAS pure-play providing drone detection and defeat solutions (RfPatrol, DroneSentry, DroneGun) to defence and critical infrastructure customers globally. Comparable to Sigma's Counter-UAS product family and AI-orchestrated threat-response platform.
• Dynamatic Technologies: Bengaluru-based Indian aerospace and defence precision components manufacturer, Tier-1 supplier to Airbus, Boeing, HAL and the Indian armed forces. Highly comparable on precision-machined aerospace structures, missile/aerial system components and India-to-global OEM supply model.
• Bharat Forge (Kalyani Group): Indian-listed precision forging and machining company with a sizeable aerospace and defence vertical supplying components to global OEMs and Indian defence PSUs. Closely comparable on precision manufacturing, OEM-component supply and India-to-global aerospace platform play.

Broad incumbents

• Bharat Electronics Limited (BEL): Indian government-owned defence electronics giant supplying radars, EW, avionics, missile electronics, naval systems and C4ISR to the Indian armed forces. A much larger incumbent serving the same Indian defence customers as Sigma, but with a far broader portfolio and dominant scale.
• Hindustan Aeronautics Limited (HAL): Indian state-owned aerospace prime building fighter aircraft, helicopters, aero-engines and avionics. Comparable as a customer and ecosystem participant for Sigma, but operates at prime/platform level rather than as a components/sub-systems supplier.

Emerging players

• Anduril Industries: US defence-technology company building autonomous systems (UAS, counter-UAS, Lattice C2) for military and homeland-security customers. Comparable emerging competitor in the AI-driven counter-UAS / autonomous-defence space where Sigma's SkyOS C5ISRT platform competes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sigma Advanced Systems