Top 10 Best CNC Machining Service Providers in India in 2027
India’s precision manufacturing sector continues to expand rapidly as demand rises across automotive, aerospace, defence, energy, medical devices and industrial equipment. Computer numerical control machining forms the backbone of this growth by enabling consistent production of complex components with tight tolerances, high surface finishes and reliable repeatability.
Service providers that combine advanced multi-axis equipment, rigorous quality systems, material expertise and scalable capacity have become essential partners for both domestic OEMs and global supply chains. The following ranking presents ten leading CNC machining service providers that stand out for their infrastructure, technical depth and ability to support diverse production requirements.
1. Gemsons Precision Engineering
Gemsons Precision Engineering operates as one of the largest SME-category CNC machine shops in India, with facilities spanning approximately 185000 square feet in Vasai, Maharashtra. The company maintains more than 190 CNC machines that include over 40 five-axis mill-turn units alongside four-axis machining centres, high-speed milling systems and specialised ultra-precision turning equipment. Capabilities extend to machining of long shafts up to 2000 millimetres, large-diameter flanges, hard-part turning up to 60 HRC, gun drilling to depths of 1000 millimetres and wire-cut EDM.
Tolerances as tight as three microns are routinely achieved on critical features, supported by process capability indices exceeding 2.5 in continuous production. Materials handled range from stainless steels and high-alloy steels to Inconel, Hastelloy, Monel, Nimonic, titanium, aluminium and various forgings and investment castings. Secondary operations include TIG and Stellite welding conforming to ASME standards, ultrasonic cleaning, assembly and laser marking.
The company holds ISO 9001 and AS9100 certifications and serves clients in aerospace, oil and gas, power generation, turbomachinery, instrumentation, healthcare and industrial automation. Its integrated tool room designs and manufactures custom fixtures, while CAD/CAM systems and DNC networking ensure efficient program management. Production volumes span prototypes through high-volume runs, with a strong track record of supplying critical components to global engineering companies.
2. Sansera Engineering Limited
Sansera Engineering Limited functions as an engineering-led manufacturer of complex precision forged and CNC-machined components, headquartered in Bengaluru with multiple plants across India and a facility in Sweden. The company operates advanced multi-axis CNC equipment covering three-axis to five-axis vertical and horizontal machining centres, mill-turn systems and specialised turning centres capable of handling components from small engine parts to larger structural elements up to several metres in length. Integrated forging capabilities through its subsidiary enable end-to-end control from billet to finished machined part.
Key product categories include connecting rods, crankshafts, rocker arms and other powertrain components for two-wheelers, passenger vehicles and commercial vehicles, alongside aerospace actuation systems, structural parts, engine casings and semiconductor equipment components. Certifications include IATF 16949, AS9100 and environmental management systems. The organisation employs thousands of personnel including hundreds of engineers and maintains in-house machine design and special-purpose machine building capabilities that support rapid process development and automation.
Quality systems emphasise statistical process control, GD&T documentation and full traceability. Customers span major global automotive and aerospace OEMs, with a growing presence in electric vehicle and high-technology segments. Flexible manufacturing lines and dedicated aerospace cells allow efficient handling of both high-volume automotive programs and lower-volume, higher-complexity aerospace and defence work.
3. Craftsman Automation Limited
Craftsman Automation Limited, based in Coimbatore, delivers vertically integrated precision manufacturing solutions across automotive powertrain, aluminium products and industrial engineering segments. The company operates more than 25 manufacturing facilities equipped with over 500 CNC machine tools and more than 30 coordinate measuring machines. Capabilities encompass multi-axis CNC milling, boring, turning, honing, grinding and specialised processes such as laser heat treatment. Aluminium operations include high-pressure die casting, low-pressure die casting and sand casting followed by finish machining.
Powertrain components such as cylinder blocks, cylinder heads, camshafts, transmission cases and axle housings are produced for medium and heavy commercial vehicles as well as tractors. Industrial offerings include gears, gearboxes, special-purpose machines, mould bases, sheet-metal fabrication and automated storage systems. In-house fixture and special-purpose machine design shortens lead times from concept to serial production.
Facilities are strategically located near major automotive hubs to support just-in-time delivery. Quality systems achieve single-digit parts-per-million defect rates and hold IATF 16949, ISO 9001 and ISO 14001 certifications. The organisation continues to expand capacity for electric vehicle components and export markets while maintaining flexible plant layouts that allow interchangeable use of machinery across product lines.
4. Aequs Limited
Aequs Limited operates India’s first notified precision engineering special economic zone in Belagavi, Karnataka, providing fully vertically integrated aerospace manufacturing that combines forging, precision machining, surface treatment and assembly under one ecosystem. Precision machining capacity exceeds 1.5 million hours annually, supported by more than 200 multi-axis CNC machines including three-axis, four-axis and five-axis centres, high-speed and high-torque systems, mill-turn multitasking machines and vertical turning lathes. Materials processed include aluminium, steel, titanium and superalloys such as Inconel.
Components produced range from actuation and structural parts to landing-system elements, engine components and interior assemblies. The company maintains one of the largest aerospace machining footprints in India and holds approvals from major OEMs including Airbus, Boeing and Safran. Surface treatment facilities are third-party approved by leading airframers, while forging operations feature large hydraulic and screw presses. Additional manufacturing sites in France and the United States support global delivery.
Quality systems include AS9100 and NADCAP approvals for special processes. Expansion plans include a new engine-components facility focused on harder superalloys, reinforcing capacity for complex, high-value aerospace programs that demand end-to-end control and high in-country value addition.
5. Maini Precision Products Limited
Maini Precision Products Limited, operating under the JK Maini banner and associated with the Raymond Group, specialises in high-precision machined components and assemblies for automotive, industrial and aerospace markets. Facilities in Bengaluru house more than 180 CNC and multi-axis machines covering three-axis to five-axis milling, high-precision turning, turn-mill centres and specialised grinding. Aerospace capabilities include aero-engine parts, structural brackets, fuel-system components and flight-control hardware produced in a purpose-built facility exceeding 10000 square metres.
Automotive and industrial products encompass engine, transmission, fuel-injection and chassis components. Certifications include AS9100, IATF 16949, ISO 9001, ISO 14001 and NADCAP approvals for non-destructive testing and welding. The organisation maintains design-to-build capabilities, dedicated new-product introduction cells and full metrology laboratories.
More than 90 percent of output is exported to customers in Europe, North America and other regions. Secondary processes such as assembly, testing and specialised finishing are performed in-house, enabling delivery of ready-to-use sub-assemblies. Long-term relationships with global Tier-1 suppliers and OEMs are supported by rigorous process control and digital manufacturing systems.
6. Bharat Forge Limited
Bharat Forge Limited maintains extensive machining facilities integrated with its world-class forging operations, enabling complete production of high-performance components for automotive, aerospace, defence, energy and industrial sectors. State-of-the-art CNC machining centres support precision turning, milling and specialised operations on forged and other stock materials. Capabilities cover a wide size range and include hard machining, complex geometries and high-volume production lines.
The company holds AS9100, IATF 16949 and multiple other quality and environmental certifications. Machining is backed by advanced tool rooms, metallurgical laboratories, design and process engineering teams and comprehensive inspection systems. Products include crankshafts, connecting rods, axle beams, transmission components and specialised aerospace and defence parts. Facilities incorporate automated lines and Industry 4.0 elements for process monitoring and consistency.
The organisation’s global footprint and scale allow it to serve major international OEMs while continuing to invest in capacity for high-value segments such as aerospace alloys and large industrial components.
7. MTAR Technologies Limited
MTAR Technologies Limited specialises in high-precision and heavy engineering components for nuclear, aerospace, defence, clean energy and industrial applications. The company operates multiple manufacturing units in Hyderabad equipped with more than 600 advanced CNC machines capable of achieving micron-level tolerances of five to ten microns. Processes encompass conventional and multi-axis CNC machining, fabrication, heat treatment, surface treatment, vacuum brazing, welding, painting, assembly and testing.
Product ranges include complex nuclear fuel-handling assemblies, propulsion system components for space launch vehicles, actuator systems, wing-kit assemblies, magnesium gearboxes and fuel-cell related hardware. Certifications include AS9100, ISO 9001, ISO 14001, ISO 45001 and NADCAP. In-house design capabilities support development of electro-mechanical, electro-pneumatic and electro-hydraulic systems. Facilities handle components ranging from micro-scale precision parts to large structural assemblies.
Quality systems feature NABL-accredited laboratories and comprehensive functional and environmental testing. The company has contributed to major national programs in civilian nuclear power, space and defence while expanding into global clean-energy supply chains.
8. INDO-MIM Limited
INDO-MIM Limited combines metal injection moulding leadership with advanced precision machining capabilities across facilities in India and overseas. Its Advanced Machining Division features multi-axis CNC centres for milling and turning of complex geometries in a wide range of materials, including stainless steels, alloy steels, titanium and nickel-based superalloys. Complementary processes include grinding, fine-hole drilling, honing, thread rolling, laser welding and specialised finishing.
Aerospace and medical-focused machining cells hold AS9100 and NADCAP approvals and support tight tolerances down to a few microns. The organisation also offers investment casting, ceramic injection moulding and additive manufacturing, enabling hybrid process routes. Secondary operations such as heat treatment, plating, assembly and over-moulding are performed in-house. Capacity supports both high-volume production and lower-volume complex parts.
Quality systems emphasise statistical process control and full material traceability. Global customers in automotive, aerospace, medical, defence and consumer markets benefit from end-to-end manufacturing solutions that integrate primary forming technologies with precision CNC finishing.
9. Godrej & Boyce Manufacturing Company Limited
Godrej & Boyce Manufacturing Company Limited maintains precision engineering and machining capabilities within its diversified manufacturing portfolio. CNC machining services support production of components for industrial equipment, consumer durables, aerospace and defence-related applications. Facilities incorporate multi-axis CNC equipment for turning, milling and specialised operations, backed by in-house design, tooling and quality infrastructure.
The company leverages decades of engineering experience and robust quality management systems that align with international standards. Material expertise covers a broad spectrum of metals and alloys, with processes designed for both prototype development and serial production. Integration with other group capabilities in fabrication, assembly and testing allows delivery of complete solutions. Emphasis on process reliability, skilled workforce development and continuous improvement positions the organisation as a dependable partner for customers seeking consistent quality and technical support across multiple industry verticals.
10. Paras Defence and Space Technologies Limited
Paras Defence and Space Technologies Limited provides precision CNC machining as part of its broader defence, space and industrial manufacturing portfolio. Capabilities include multi-axis CNC milling and turning for complex mechanical components used in rockets, missiles, naval systems, electronic warfare equipment and specialised industrial applications. Facilities support machining of stainless steel, aluminium, titanium and other engineering materials to tight tolerances required for mission-critical uses. Complementary processes encompass flow forming, heavy fabrication, surface treatment and assembly.
Quality systems meet the stringent requirements of defence and space customers, including full traceability and specialised testing. The company has evolved from mechanical component manufacturing into higher-value subsystems while retaining strong core machining competencies. Customers include major Indian defence and space organisations as well as private-sector partners. Flexible production approaches accommodate both developmental and production volumes, supported by engineering teams experienced in converting complex designs into reliable hardware.
These providers collectively illustrate the depth and maturity of India’s CNC machining ecosystem. Their investments in advanced equipment, quality infrastructure, material science and process engineering enable them to meet the evolving requirements of high-precision industries while supporting both domestic manufacturing goals and export competitiveness. Organisations seeking reliable machining partners can evaluate these companies based on specific capability matches, certification profiles, capacity availability and demonstrated performance in relevant application domains.
