# Top 50 companies with in-house R&D in Tamil Nadu

Tamtam tracks 226 companies with in-house R&D headquartered in Tamil Nadu. This list ranks the 50 largest by number of employees on LinkedIn, led by TVS Motor Company, Zoho and Ashok Leyland. Their median headcount is 2,704. Half of them were founded in 1971 or later. The most common headquarters are Chennai (31) and Coimbatore (8).

This selection of large companies with in-house R&D in Tamil Nadu shows a strong presence in motor vehicle manufacturing and related sectors. Key players include TVS Motor Company, a global manufacturer of two and three-wheelers, Ashok Leyland, which produces commercial vehicles, and MRF, a leading tyre manufacturer. Software development is also prominent, with Zoho providing over 55 software products and Intellect Design Arena Ltd specializing in banking and insurance platforms.

A notable pattern is the concentration of headquarters in Chennai, which hosts many of these large enterprises. The list also features significant contributions from academia, such as the Indian Institute of Technology, Madras, and Amrita Vishwa Vidyapeetham, both offering higher technological education and research.

🇮🇳 Tamil Nadu · 50 companies · Updated Nov 13, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [TVS Motor Company](https://www.tamtam.ai/c/tvs-motor-company) (tvsmotor.com)<br>Global manufacturer of two and three-wheelers with a focus on sustainability, innovation, and quality, serving customers in over 80 countries | Motor Vehicle Manufacturing | 🇮🇳 Hosur | 31,255 | 1979 |
| 2 | [Zoho](https://www.tamtam.ai/c/zoho-chennai) (zoho.com)<br>Provides over 55 software products supporting sales, marketing, finance, recruitment, collaboration, and customer support for business growth worldwide. | Software Development | 🇮🇳 Chennai | 30,778 |  |
| 3 | [Ashok Leyland](https://www.tamtam.ai/c/ashok-leyland) (ashokleyland.com)<br>Manufacture and supply reliable, rugged commercial vehicles including buses and trucks, focusing on quality and global standards in India. | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 26,886 | 1948 |
| 4 | [Tata Electronics](https://www.tamtam.ai/c/tata-electronics) (tataelectronics.com)<br>A global enterprise with a legacy of 150 years, focusing on creating stakeholder value and improving communities worldwide through engineering and manufacturing | Manufacturing | 🇮🇳 Bengaluru | 18,444 | 2020 |
| 5 | [MRF](https://www.tamtam.ai/c/mrf-chennai) (mrftyres.com)<br>A leading Indian manufacturer specialized in producing a wide range of high-quality tyres, also renowned for ventures in specialty coatings, toys, and sports goods | Motor Vehicle Parts Manufacturing | 🇮🇳 Chennai | 13,150 | 1946 |
| 6 | [L&T Construction](https://www.tamtam.ai/c/l-and-t-construction) (lntecc.com)<br>Global EPC contractor for industrial and infrastructure projects, offering innovative design engineering, digitalization, mechanization, and skilled workforce to meet project requirements | Construction | 🇮🇳 Chennai | 11,172 | 1938 |
| 7 | [Indian Institute of Technology, Madras](https://www.tamtam.ai/c/indian-institute-of-technology-madras) (iitm.ac.in)<br>An institute of national importance offering higher technological education, research, and consultancy services with a focus on engineering and pure sciences | Higher Education | 🇮🇳 Chennai | 9,505 | 1959 |
| 8 | [Intellect Design Arena Ltd](https://www.tamtam.ai/c/intellect-design-arena-ltd) (intellectdesign.com)<br>A global leader in banking, insurance, and capital markets, offering a cloud-native platform for digital transformation through innovative design solutions | Software Development | 🇮🇳 Chennai | 8,317 | 1993 |
| 9 | [Renault Nissan Technology & Business Centre India](https://www.tamtam.ai/c/renault-nissan-technology-and-business-centre-india) (rntbci.in)<br>Global automotive technology, engineering, and business services supporting Renault and Nissan, developing vehicles, components, software, and advanced research, alongside IT and shared services. | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 7,865 |  |
| 10 | [Coromandel International Limited](https://www.tamtam.ai/c/coromandel-international-limited) (coromandel.biz)<br>Leading phosphatic fertiliser manufacturer providing crop protection, organic products, and specialty nutrients while operating rural retail outlets offering advisory and soil testing services. | Chemical Manufacturing | 🇮🇳 Chennai | 7,066 |  |
| 11 | [TAFE - Tractors and Farm Equipment Limited](https://www.tamtam.ai/c/tafe-tractors-and-farm-equipment-limited) (tafe.com)<br>Manufacturing tractors globally. Produces and sells over 180,000 units annually across 80 countries. Owns diverse businesses in farm machinery, engines, plastics, and vehicle franchises. | Machinery Manufacturing | 🇮🇳 Chennai | 6,607 | 1960 |
| 12 | [Brakes India](https://www.tamtam.ai/c/brakes-india) (brakesindia.com)<br>A leading manufacturer of automotive braking systems and ferrous castings, providing complete braking solutions and automotive spare parts with a focus on sustainability | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 5,998 | 1962 |
| 13 | [Amrita Vishwa Vidyapeetham](https://www.tamtam.ai/c/amrita-vishwa-vidyapeetham) (amrita.edu)<br>A leading multi-campus research institution in India with collaborations with top US and European universities, known for its higher education programs | Higher Education | 🇮🇳 Coimbatore | 4,702 |  |
| 14 | [Daimler India Commercial Vehicles](https://www.tamtam.ai/c/daimler-india-commercial-vehicles) (asia.daimlertruck.com)<br>A subsidiary of Daimler Truck AG, specializing in commercial vehicles tailored for the Indian market, delivering on safety, reliability, and cost-effectiveness | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 4,018 | 2009 |
| 15 | [Delphi-TVS](https://www.tamtam.ai/c/delphi-tvs) (delphitvs.com)<br>Design and manufacture advanced fuel injection systems for various vehicles including cars, commercial vehicles, construction equipment, tractors, and small engines. | Motor Vehicle Manufacturing | 🇮🇳 Kancheepuram | 3,922 | 1952 |
| 16 | [Pricol Limited](https://www.tamtam.ai/c/pricol-limited) (pricol.com)<br>A leading Indian provider of automotive technology and precision engineered solutions, recognized for innovation and excellence in the global automotive industry | Motor Vehicle Manufacturing | 🇮🇳 Coimbatore | 3,711 | 1975 |
| 17 | [Wheels India Limited](https://www.tamtam.ai/c/wheels-india-limited) (wheelsindia.com)<br>A leading global manufacturer of steel wheels for various vehicles, also producing air suspension kits and forged aluminum wheels for the automotive industry | Manufacturing | 🇮🇳 Chennai | 3,588 | 1962 |
| 18 | [Lucas TVS](https://www.tamtam.ai/c/lucas-tvs) (lucas-tvs.com)<br>Leader in auto electrical manufacturing in India with 50 years of experience Specialized in designing and producing products for majority of vehicles | Motor Vehicle Parts Manufacturing | 🇮🇳 Chennai | 3,563 | 1961 |
| 19 | [The Ramco Cements Limited](https://www.tamtam.ai/c/the-ramco-cements-limited) (ramcocements.in)<br>A leading Indian cement company offering innovative products for various applications, with 11 cement plants and a total production capacity of over 20 MTPA | Wholesale Building Materials | 🇮🇳 Chennai | 3,375 | 1961 |
| 20 | [Johnson Lifts & Escalators](https://www.tamtam.ai/c/johnson-lifts-and-escalators) (johnsonliftsltd.com)<br>Leading elevator and escalator manufacturer in India with over 60 years of experience, offering a wide range of products for various settings | Manufacturing | 🇮🇳 Chennai | 3,095 | 1963 |
| 21 | [Saint-Gobain India Private Limited - Glass Business](https://www.tamtam.ai/c/saint-gobain-india-private-limited-glass-business) (saint-gobain-glass.com)<br>Global leader in sustainable construction and industrial solutions, investing in India for R&D and manufacturing, committed to carbon neutrality by 2050 | Glass, Ceramics and Concrete Manufacturing | 🇮🇳 Egmore | 3,086 |  |
| 22 | [VA TECH WABAG LTD.](https://www.tamtam.ai/c/va-tech-wabag-ltd) (wabag.com)<br>A global leader in water technology, providing comprehensive solutions for municipal and industrial sectors, focusing on sustainability and resource conservation | Environmental Services | 🇮🇳 Chennai | 3,069 | 1924 |
| 23 | [L.G. Balakrishnan & Bros. Ltd](https://www.tamtam.ai/c/l-g-balakrishnan-and-bros-ltd-coimbatore) (lgb.co.in)<br>A world-leading manufacturer of transmission products including automotive chains, sprockets, tensioners, and precision components, focusing on responsiveness to market needs | Motor Vehicle Parts Manufacturing | 🇮🇳 Coimbatore | 2,937 | 1937 |
| 24 | [Rane Group](https://www.tamtam.ai/c/rane-group) (ranegroup.com)<br>A trading house established in 1929, offering a wide range of automotive products, preferred supplier to major OEMs, with a global presence in over 30 countries | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 2,820 | 1929 |
| 25 | [Tamil Nadu Agricultural University](https://www.tamtam.ai/c/tamil-nadu-agricultural-university) (tnau.ac.in)<br>The organization is an agricultural university offering various degree programs in agriculture, horticulture, forestry, and home science since 1971 | Higher Education | 🇮🇳 Coimbatore | 2,704 | 1971 |
| 26 | [Syrma SGS Technology Limited](https://www.tamtam.ai/c/syrma-sgs-technology-limited) (syrmasgs.com)<br>Specializing in electronics manufacturing services, we offer collaboration to develop optimal design solutions, reduce costs, manage risk, and deliver innovative products | Appliances, Electrical, and Electronics Manufacturing | 🇮🇳 Chennai | 2,588 | 2006 |
| 27 | [HL Mando Anand India Private Limited](https://www.tamtam.ai/c/hl-mando-anand-india-private-limited) (anandgroupindia.com)<br>A leading manufacturer and supplier of high-performance brake systems, shock absorbers, and struts for Indian, European, and American OEMs | Motor Vehicle Manufacturing | 🇮🇳 Kanchipuram | 2,543 |  |
| 28 | [Carborundum Universal Limited](https://www.tamtam.ai/c/carborundum-universal-limited) (cumi-murugappa.com)<br>Integrated mining and manufacturing company providing services in Electro Minerals, Abrasives, Refractories, and Ceramics for industries like aerospace, automobile, and construction | Mining | 🇮🇳 Chennai | 2,512 | 1954 |
| 29 | [ELGI EQUIPMENTS LIMITED](https://www.tamtam.ai/c/elgi-equipments-limited) (elgi.com)<br>A global air compressor manufacturer offering innovative compressed air systems and a wide range of products to help customers achieve productivity goals efficiently | Industrial Machinery Manufacturing | 🇮🇳 Coimbatore | 2,512 |  |
| 30 | [Schwing Stetter India](https://www.tamtam.ai/c/schwing-stetter-india) (schwingstetterindia.com)<br>A construction equipment leader in India, known for innovation and quality, driving infrastructure growth with state-of-the-art concreting solutions and sustainability initiatives | Machinery Manufacturing | 🇮🇳 Chennai | 2,443 | 1998 |
| 31 | [Hinduja Tech Limited](https://www.tamtam.ai/c/hinduja-tech-limited) (hindujatech.com)<br>Global engineering solution provider specializing in disruptive mobility, electric and autonomous vehicles, with a focus on automotive product development and digital technologies worldwide | Engineering Services | 🇮🇳 Chennai | 2,238 |  |
| 32 | [Renault Nissan Automotive India Pvt Ltd](https://www.tamtam.ai/c/renault-nissan-automotive-india-pvt-ltd)<br>A global automotive plant in India producing vehicles for Renault and Nissan, exporting to 108 countries, with significant investments and employment opportunities created | Motor Vehicle Manufacturing | 🇮🇳 Oragadam | 2,151 | 2008 |
| 33 | [Titan Engineering & Automation Limited](https://www.tamtam.ai/c/titan-engineering-and-automation-limited) (titanteal.com)<br>Designing and manufacturing high precision components, automation machines, turnkey assembly and testing solutions for aerospace, defense, and various industries. | Automation Machinery Manufacturing | 🇮🇳 Hosur | 2,136 | 2017 |
| 34 | [Sri Ramachandra Institute Of Higher Education and Research](https://www.tamtam.ai/c/sri-ramachandra-institute-of-higher-education-and-research) (sriramachandra.edu.in)<br>Higher education institution offering medical, dental, pharmacy, nursing, and allied health courses with strong research and international collaborations. | Hospitals and Health Care | 🇮🇳 Chennai | 2,090 | 1994 |
| 35 | [Precision Infomatic (M) Private limited](https://www.tamtam.ai/c/precision-infomatic-m-private-limited) (precisionit.co.in)<br>A consulting company established in 1996, offering IT Infrastructure Management, Biometric, IoT, Cloud, and IT System Integration solutions with a strong R&D focus | IT Services and IT Consulting | 🇮🇳 Chennai | 2,003 | 1996 |
| 36 | [University of Madras](https://www.tamtam.ai/c/university-of-madras) (unom.ac.in)<br>Higher education institution offering a wide range of courses with experienced faculty focused on quality education and student development. | Higher Education | 🇮🇳 Chennai | 1,933 |  |
| 37 | [Magna Automotive India Private Ltd.](https://www.tamtam.ai/c/magna-automotive-india-private-ltd) (magna.com)<br>Development of integrated automotive technologies focusing on comprehensive problem-solving and seamless vehicle system integration for brand enhancement. | Motor Vehicle Manufacturing | 🇮🇳 Chengalpattu | 1,897 |  |
| 38 | [Orchid Pharma](https://www.tamtam.ai/c/orchid-pharma) (orchidpharma.com)<br>A vertically integrated pharmaceutical entity with expertise in research, manufacturing, and marketing, offering active pharmaceutical ingredients and a diverse range of therapeutic products globally | Pharmaceutical Manufacturing | 🇮🇳 Chennai | 1,891 | 1992 |
| 39 | [CRI Group](https://www.tamtam.ai/c/cri-group) (acsenhyveg.com)<br>Global leader in irrigation sector revolutionizing equipment production, offering over 9,000 products in fluid management systems, present in 120+ countries | Industrial Machinery Manufacturing | 🇮🇳 Coimbatore | 1,861 | 1961 |
| 40 | [Rane Madras Ltd (RML)](https://www.tamtam.ai/c/rane-madras-ltd-rml) (ranegroup.com)<br>A market leader in steering and suspension linkages, offering a range of products for domestic and export markets in automotive industry | Motor Vehicle Manufacturing | 🇮🇳 Velachery | 1,851 | 1959 |
| 41 | [Karunya Institute of Technology and Sciences](https://www.tamtam.ai/c/karunya-institute-of-technology-and-sciences) (karunya.edu)<br>A globally ranked Christian university focusing on academic excellence, professional competence, values, and spiritual empowerment to develop engineers and leaders | Higher Education | 🇮🇳 Coimbatore | 1,826 | 1986 |
| 42 | [Christian Medical College Vellore](https://www.tamtam.ai/c/christian-medical-college-vellore) (cmch-vellore.edu)<br>Providing high quality healthcare through education and training to develop compassionate, professional healthcare leaders in various medical disciplines | Hospitals and Health Care | 🇮🇳 Vellore | 1,780 | 1900 |
| 43 | [Bharath Institute of Higher Education and Research](https://www.tamtam.ai/c/bharath-institute-of-higher-education-and-research) (bharathuniv.ac.in)<br>A prestigious institution offering engineering education, research opportunities, and global exposure in Chennai, ranked among the top universities in India | Higher Education | 🇮🇳 Chennai | 1,778 | 1984 |
| 44 | [SRM Technologies](https://www.tamtam.ai/c/srm-technologies) (srmtech.com)<br>Global IT services company specializing in automotive technologies, digital transformation, and product engineering Offerings include technology consulting, data analytics, AI, cloud enablement, and embedded software solutions | IT Services and IT Consulting | 🇮🇳 Chennai | 1,775 | 1998 |
| 45 | [Kumaraguru College of Technology](https://www.tamtam.ai/c/kumaraguru-college-of-technology) (kct.ac.in)<br>A private Engineering College in Coimbatore offering autonomous programs affiliated with Anna University, approved by AICTE, and accredited by NAAC and NBA | Higher Education | 🇮🇳 Coimbatore | 1,761 | 1984 |
| 46 | [JK Fenner (India) Ltd](https://www.tamtam.ai/c/jk-fenner-india-ltd) (jkfenner.com)<br>A leading industrial manufacturer specializing in power transmission belts, gears, motors, automation, rubber products, and EV products for automotive and industrial applications worldwide | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 1,707 | 1955 |
| 47 | [Avalon Technologies Limited](https://www.tamtam.ai/c/avalon-technologies-limited) (avalontec.com)<br>A leading choice for global MNC companies in various industries, offering design, manufacturing, and turnkey solutions for high-quality electronics products | Appliances, Electrical, and Electronics Manufacturing | 🇮🇳 Chennai | 1,699 | 2000 |
| 48 | [SPIC](https://www.tamtam.ai/c/spic) (spic.in)<br>A leading Indian agri-nutrient and fertilizer producer, specializing in high-quality, eco-friendly products to enhance agricultural output and support farmers nationwide | Chemical Manufacturing | 🇮🇳 Chennai | 1,694 | 1969 |
| 49 | [Appasamy Associates](https://www.tamtam.ai/c/appasamy-associates) (appasamy.com)<br>Leading manufacturer and distributor of ophthalmic diagnostic & surgical equipment, intraocular lenses, microsurgical instruments, and pharmaceuticals Dedicated to supporting products and advancing technology | Medical Equipment Manufacturing | 🇮🇳 Chennai | 1,643 | 1978 |
| 50 | [ZF Rane Automotive India Private Limited](https://www.tamtam.ai/c/zf-rane-automotive-india-private-limited) (ranegroup.com)<br>Manufacturer of steering systems and seat belts for passenger cars, utility vehicles, and commercial vehicles with a focus on occupant safety Award-winning and technologically advanced solutions | Motor Vehicle Manufacturing | 🇮🇳 Chennai | 1,641 | 1987 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.

## More company lists in Tamil Nadu

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- [Multinational companies in Tamil Nadu](https://www.tamtam.ai/l/multinational-companies-tamil-nadu) (285)
- [Education providers in Tamil Nadu](https://www.tamtam.ai/l/education-companies-tamil-nadu) (258)
- [Higher Education companies in Tamil Nadu](https://www.tamtam.ai/l/higher-education-companies-tamil-nadu) (168)
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- [Automotive manufacturers and suppliers in Tamil Nadu](https://www.tamtam.ai/l/automotive-companies-tamil-nadu) (95)
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- [Financial Services companies in Tamil Nadu](https://www.tamtam.ai/l/financial-services-companies-tamil-nadu) (75)
- [Healthcare providers in Tamil Nadu](https://www.tamtam.ai/l/healthcare-providers-tamil-nadu) (74)
- [Hospitals and Health Care companies in Tamil Nadu](https://www.tamtam.ai/l/hospitals-and-health-care-companies-tamil-nadu) (70)
- [Motor Vehicle Manufacturing companies in Tamil Nadu](https://www.tamtam.ai/l/motor-vehicle-manufacturing-companies-tamil-nadu) (68)
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- [Software Development companies in Tamil Nadu](https://www.tamtam.ai/l/software-development-companies-tamil-nadu) (58)
- [AI companies in Tamil Nadu](https://www.tamtam.ai/l/ai-companies-tamil-nadu) (56)

## The same list elsewhere in India

- [Companies with in-house R&D in India](https://www.tamtam.ai/l/r-and-d-companies-india) (1,989)
- [Companies with in-house R&D in Maharashtra](https://www.tamtam.ai/l/r-and-d-companies-maharashtra) (513)
- [Companies with in-house R&D in Karnataka](https://www.tamtam.ai/l/r-and-d-companies-karnataka) (271)
- [Companies with in-house R&D in Haryana](https://www.tamtam.ai/l/r-and-d-companies-haryana) (166)
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- [Companies with in-house R&D in Uttar Pradesh](https://www.tamtam.ai/l/r-and-d-companies-uttar-pradesh) (124)
- [Companies with in-house R&D in Telangana](https://www.tamtam.ai/l/r-and-d-companies-telangana) (69)
- [Companies with in-house R&D in West Bengal](https://www.tamtam.ai/l/r-and-d-companies-west-bengal) (54)
- [Companies with in-house R&D in Rajasthan](https://www.tamtam.ai/l/r-and-d-companies-rajasthan) (41)
- [Companies with in-house R&D in Andhra Pradesh](https://www.tamtam.ai/l/r-and-d-companies-andhra-pradesh) (36)
- [Companies with in-house R&D in Kerala](https://www.tamtam.ai/l/r-and-d-companies-kerala) (36)
- [Companies with in-house R&D in Punjab](https://www.tamtam.ai/l/r-and-d-companies-punjab) (34)
- [Companies with in-house R&D in Mumbai](https://www.tamtam.ai/l/r-and-d-companies-mumbai) (257)
- [Companies with in-house R&D in Bengaluru](https://www.tamtam.ai/l/r-and-d-companies-bengaluru) (235)
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- [Companies with in-house R&D in New Delhi](https://www.tamtam.ai/l/r-and-d-companies-new-delhi) (126)
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- [Companies with in-house R&D in Noida](https://www.tamtam.ai/l/r-and-d-companies-noida) (75)
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- [Companies with in-house R&D in Kolkata](https://www.tamtam.ai/l/r-and-d-companies-kolkata) (44)
- [Companies with in-house R&D in Coimbatore](https://www.tamtam.ai/l/r-and-d-companies-coimbatore) (41)
- [Companies with in-house R&D in Vadodara](https://www.tamtam.ai/l/r-and-d-companies-vadodara) (40)

## The same list elsewhere

- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,334)
- [Companies with in-house R&D in Asia](https://www.tamtam.ai/l/r-and-d-companies-in-asia) (4,159)

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Source: https://www.tamtam.ai/l/r-and-d-companies-tamil-nadu