These are large companies with in-house R&D in New Delhi, primarily in manufacturing, energy, and pharmaceuticals. Many are established firms, with several founded in the mid-20th century. Maruti Suzuki India Limited manufactures and sells cars, while Indian Oil Corp Limited specializes in oil refining and distribution. Hero MotoCorp is a major two-wheeler manufacturer, and MANKIND PHARMA LTD develops and commercializes pharmaceutical products.
The data shows a strong presence of companies in the oil and gas sector, with Indian Oil Corp Limited, Oil and Natural Gas Corporation Ltd, and GAIL (India) Limited all being significant players. NTPC Limited, India's largest power generation utility, is also present. This indicates a concentration of energy-related R&D activities in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Maruti Suzuki India Limitedmarutisuzuki.com
Manufacturing and selling feature-rich, affordable cars with a focus on quality, customer satisfaction, and transitioning to low-carbon technologies. |
51,583 | |||
| 2 |
Indian Oil Corp Limitediocl.com
Leading energy company specializing in oil refining, distribution, and marketing, ranked among the world's largest corporations globally. |
41,695 | |||
| 3 |
Hero MotoCorpheromotocorp.com
A leading manufacturer of two-wheelers in India, focused on redefining mobility through innovation, collaboration, and inspiring a sustainable future Equal opportunity employer |
30,895 | |||
| 4 |
NTPC Limitedntpc.co.in
India's largest power generation utility, operating across fossil fuels, hydro, nuclear, and renewable energy sources, with a diversified portfolio including consultancy and training services |
26,494 | |||
| 5 |
Bharat Heavy Electricals Limitedbhel.com
A leading engineering and manufacturing enterprise specializing in power equipment, serving various sectors globally with a focus on sustainable business solutions and nation building initiatives |
21,861 | |||
| 6 |
MANKIND PHARMA LTDmankindpharma.com
Formulation, development, and commercialization of affordable, high-quality pharmaceutical, OTC, and FMCG products for global healthcare improvement. |
18,718 | |||
| 7 |
Oil and Natural Gas Corporation Ltdongcindia.com
Largest Indian crude oil, natural gas producer. Integrated energy company with exploration, production, refining, petrochemicals, renewables, and global oil and gas properties. |
16,674 | |||
| 8 |
Delhi Universitydu.ac.in
Non-profit foundation promoting alumni interaction, organizing academic events, and mobilizing funds to support university initiatives and values. |
14,349 | |||
| 9 |
GAIL (India) Limitedgailonline.com
Largest natural gas company in India with operations in transmission, marketing, processing, LPG, petrochemicals, city gas, and exploration. |
9,153 | |||
| 10 |
JK Tyre & Industries Ltd.jktyre.com
A leading tire manufacturer known for pioneering radial technology, innovative products, and a commitment to excellence and global competitiveness in the industry |
7,001 | |||
| 11 |
Engineers India Limitedengineersindia.com
A leading engineering consultancy providing design, engineering, procurement, construction, and project management services primarily focused on oil & gas, petrochemical, and other industries globally |
4,773 | |||
| 12 |
HFCL Limitedhfcl.com
A technology company specializing in digital network solutions for telcos, enterprises, and governments, offering high-tech products with a strong focus on R&D and sustainability |
3,798 | |||
| 13 |
Panacea Biotecpanaceabiotec.com
A progressive health management organization in India, conducting research, manufacturing, and marketing of pharmaceutical formulations, vaccines, and natural products |
3,052 | |||
| 14 |
Oil and Natural Gas Corporation Limited (ONGC)ongcindia.com
A leading Indian government-owned oil and gas explorer and producer, responsible for a significant portion of India's domestic production |
3,040 | |||
| 15 |
SPR Auto Technologies Limitedshrirampistons.com
A leading manufacturer providing end-to-end solutions for pistons, pins, rings, and engine valves, with a focus on advanced technology and global export |
2,540 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
University of Delhidu.ac.in
A premier university with a venerable legacy, diverse educational programs, distinguished faculty, and modern infrastructure, committed to excellence in teaching and research |
2,481 | |||
| 17 |
Godfrey Phillips India Limitedgodfreyphillips.co.in
An FMCG company in India with a strong retail presence, offering tobacco, chewing products, mouth fresheners, and confectionary Emphasizes employee and stakeholder well-being |
2,440 | |||
| 18 |
Crystal Crop Protection Limitedcrystalcropprotection.com
A 40-year-old company specializing in manufacturing and marketing agrochemical products like insecticides, fungicides, and herbicides to support Indian agriculture |
2,225 | |||
| 19 |
Jawaharlal Nehru Universityjnu.ac.in
Premier university in India known for excellence in teaching, research, and accolades Offers diverse academic programs, collaborations with international universities, and prestigious faculty |
2,205 | |||
| 20 |
ICAR- Indian Council of Agricultural Researchicar.org.in
Coordination and management of agricultural research, education, and technology development across India, enhancing food production and security nationwide. |
2,052 | |||
| 21 |
Marg ERPmargcompusoft.com
Leading provider of integrated business software for MSMEs, specializing in inventory, accounting, and ERP solutions Award-winning company with a focus on innovation and customer satisfaction |
1,984 | |||
| 22 |
HPCL North Zone Allied Retail Businesshindustanpetroleum.com
A Fortune 500 entity in the petroleum industry with a vast retail network offering various commercial activities at its outlets |
1,869 | |||
| 23 |
Vindhya Telelinks Limitedvtlrewa.com
A leading supplier of Jelly Filled and Optic Fibre Telecommunication cables to major organizations in India since 1986 |
1,650 | |||
| 24 |
Fiem Industries Ltd.fiemindustries.com
A leading player in the automotive lighting industry, supplying OEM products to major auto companies in India Diversified into LED lighting and passenger information systems |
1,582 | |||
| 25 |
Cosmo Filmscosmofilms.com
Global leader in specialty films for flexible packaging, lamination, labeling, and industrial applications, offering a wide range of industry-grade films with international reach and accolades |
1,580 | |||
| 26 |
KEI Wires and Cableskei-ind.com
A manufacturing powerhouse specializing in a wide range of power cables, stainless steel wires, and specialty cables for diverse industries |
1,573 | |||
| 27 |
Sharda Motor Industries Ltdshardamotor.com
An ISO 9001 certified auto-ancillary company specializing in highly engineered products and services for the automotive industry, with a focus on sustainability and innovation |
1,443 | |||
| 28 |
Poly Medicure Ltdpolymedicure.com
A leading Indian medical device company focused on innovation, safety, and quality, offering over 125 products in 100 countries worldwide |
1,406 | |||
| 29 |
CSIR Indiasolo.to
A leading scientific and industrial research organization focused on innovation, technology solutions, human resource development, intellectual property, and environmental services |
1,364 | |||
| 30 |
Euler Motorseulermotors.com
A leading OEM in India for commercial EVs, focusing on technological innovation and building a robust EV ecosystem for faster adoption |
1,345 | |||
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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 New Delhi
- The largest companies in New Delhi 1,941
- Manufacturers in New Delhi 256
- Multinational companies in New Delhi 239
- Education providers in New Delhi 218
- Public sector organisations in New Delhi 168
- Critical infrastructure operators in New Delhi 142
- Companies with a mobile app in New Delhi 134
- Publicly traded companies in New Delhi 113
- Retail chains in New Delhi 112
- Financial services firms in New Delhi 110
- Financial Services companies in New Delhi 109
- Professional services firms in New Delhi 106
- Hardware manufacturers in New Delhi 93
- Corporate groups and holding companies in New Delhi 90
- Education Administration Programs companies in New Delhi 86
- Non-profit Organizations companies in New Delhi 85
- IT Services and IT Consulting companies in New Delhi 81
- Energy companies in New Delhi 72
- Government Administration companies in New Delhi 71
- Chemical companies in New Delhi 64
- Hotel and hospitality groups in New Delhi 64
- Healthcare providers in New Delhi 63
- Higher Education companies in New Delhi 63
- Hospitals and Health Care companies in New Delhi 62
The same list elsewhere in India
- Companies with in-house R&D in India 1,989
- Companies with in-house R&D in Maharashtra 513
- Companies with in-house R&D in Karnataka 271
- Companies with in-house R&D in Tamil Nadu 226
- Companies with in-house R&D in Haryana 166
- Companies with in-house R&D in Gujarat 143
- Companies with in-house R&D in Uttar Pradesh 124
- Companies with in-house R&D in Telangana 69
- Companies with in-house R&D in West Bengal 54
- Companies with in-house R&D in Rajasthan 41
- Companies with in-house R&D in Andhra Pradesh 36
- Companies with in-house R&D in Kerala 36
- Companies with in-house R&D in Punjab 34
- Companies with in-house R&D in Mumbai 257
- Companies with in-house R&D in Bengaluru 235
- Companies with in-house R&D in Pune 149
- Companies with in-house R&D in Chennai 132
- Companies with in-house R&D in Gurugram 124
- Companies with in-house R&D in Noida 75
- Companies with in-house R&D in Hyderabad 72
- Companies with in-house R&D in Ahmedabad 57
- Companies with in-house R&D in Kolkata 44
- Companies with in-house R&D in Coimbatore 41
- Companies with in-house R&D in Vadodara 40