The companies in Ahmedabad with in-house R&D are primarily pharmaceutical manufacturers and biotechnology research firms. This group includes large enterprises like Zydus Group, a global healthcare provider, Intas Pharmaceuticals, which develops and markets generic pharmaceuticals, and Torrent Pharmaceuticals Ltd, known for its strong R&D focus. Other significant players are Cadila Pharmaceuticals Limited, specializing in a wide range of products, and Troikaa Pharmaceuticals Ltd., noted for its steady growth.
A notable pattern among these companies is their specialization in healthcare and related fields. Adani Solar, a large-scale solar module manufacturer, and SUZUKI MOTOR GUJARAT PRIVATE LIMITED, an automotive manufacturing plant, represent a smaller cluster of manufacturing companies outside the pharmaceutical sector.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Zydus Groupzyduslife.com
Innovation-led global healthcare provider discovering, manufacturing, and marketing a wide range of therapies, with a focus on creating healthier communities worldwide |
21,077 | |||
| 2 |
Intas Pharmaceuticalsintaspharma.com
Development, manufacturing, and marketing of generic pharmaceuticals and biosimilars with global presence and advanced R&D and manufacturing facilities. |
19,912 | |||
| 3 |
Torrent Pharmaceuticals Ltdtorrentpharma.com
A leading pharmaceutical company with strong R&D focus, global presence, acquisitions, and multiple USFDA approved manufacturing facilities, committed to providing quality healthcare solutions |
12,032 | |||
| 4 |
Cadila Pharmaceuticals Limitedcadilapharma.com
A leading pharmaceutical company based in India, focused on research, development, and manufacturing of a wide range of pharmaceutical products globally |
9,404 | |||
| 5 |
Adani Solaradanisolar.com
Large-scale solar module and cell manufacturer building a fully integrated ecosystem from polysilicon to modules, including India's only ingot and wafer facility. |
5,573 | |||
| 6 |
SUZUKI MOTOR GUJARAT PRIVATE LIMITEDmarutisuzuki.com
Automotive manufacturing plant based in Gujarat, India, owned by a Japanese corporation, specializing in producing vehicles for the market |
4,533 | |||
| 7 |
Troikaa Pharmaceuticals Ltd.troikaa.com
A pharmaceutical company founded in 1983 with steady growth through innovation, marketing, and multiple manufacturing facilities, employing over 2300 people |
3,751 | |||
| 8 |
Electrotherm (India) Limitedelectrotherm.com
Specializes in designing and manufacturing furnaces, refining equipment, casting machines, and plant automation for the steel industry while focusing on innovation and customer-centric solutions |
2,156 | |||
| 9 | 
Zydus Cadila Healthcare Limitedzyduscadila.com
A biotechnology firm headquartered in Ahmedabad, India, focused on healthcare, specifically in the development of pharmaceuticals and biologics |
1,827 | |||
| 10 |
Cliantha Research Limitedcliantha.com
A global Clinical Research Organization offering comprehensive services in various phases of clinical research, lab services, biometrics, and medical services |
1,701 | |||
| 11 |
Harsha Engineers International Limitedharshaengineers.com
Global provider of Bearing Cages and Stamped Components with international presence, focusing on quality, innovation, and customer support for efficient industry performance |
1,345 | |||
| 12 |
Ahmedabad Universityahduni.edu.in
Private research university focused on interdisciplinary learning, molding independent thinkers and compassionate leaders through innovative engagement with societal challenges |
1,295 | |||
| 13 |
Lambda Therapeutic Researchlambda-cro.com
A global Clinical Research Organization offering end-to-end services including clinical trials, data management, drug safety, bioanalytical services, and biosimilar development |
1,280 | |||
| 14 |
Concord Biotech Limitedconcordbiotech.com
A biotechnology company specializing in fermentation, semi-synthetic, and synthesis-based products, offering services in API production, enzymes, and contract manufacturing |
1,228 | |||
| 15 |
GREW Solarthegrewsolar.com
An independent provider of sustainable energy solutions in India, specializing in solar components for large-scale projects and offering operational support and maintenance |
1,220 | |||
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 |
La Renon Healthcare Pvt.Ltd.larenon.com
A dynamic pharma company offering high-quality pharmaceutical products for various critical illnesses, with a focus on research, technology, and global expansion |
1,213 | |||
| 17 |
Dishman Carbogen Amcis Ltdimdcal.com
Global pharmaceutical outsourcing partner offering a range of services, products, and manufacturing solutions to support the industry with high-value and high-quality solutions |
1,100 | |||
| 18 |
Mantra Softechmantratec.com
Manufacturing biometric and RFID products for security and identity. Pioneering solutions for government, telecom, banking, and enterprise sectors globally. |
1,063 | |||
| 19 |
JAY Chemical Industries Private Limitedjaychemical.com
Leading global producer of Reactive Dyes, with a yearly sales turnover of USD 220 Million Also manufacturing Disperse Dyes, Digital Textile Printing Ink, Construction Chemicals, and Textile Auxiliaries |
1,050 | |||
| 20 |
Astral Adhesivesastraladhesives.com
A leading Indian manufacturer specializing in adhesives, sealants, tapes, and construction chemicals for various industrial and consumer applications |
1,049 | |||
| 21 |
Space Applications Centre, ISROsac.gov.in
Designs space instruments, develops applications for societal benefits, and supports Indian satellite missions with transponders, sensors, ground systems, and data processing |
1,039 | |||
| 22 |
Amnex Infotechnologiesamnex.com
Providing advanced technology solutions like AI, IoT, blockchain, and cloud computing to transform sectors including logistics, agriculture, mining, and smart cities. |
920 | |||
| 23 |
Lincoln Pharmaceuticals Ltdlincolnpharma.com
A manufacturing company founded in 1979 in Gujarat, India, committed to producing high-quality products in compliance with WHO-cGMP norms and ISO 9001:2015 certified Expanding to US and UK markets |
911 | |||
| 24 |
CEPT Universitycept.ac.in
This company focuses on all aspects of human habitats, offering teaching programs, research initiatives, and advisory projects to improve livability |
859 | |||
| 25 |
Unison Pharmaceuticals Pvt. Ltd.unisonpharmaceuticals.com
An emerging global pharmaceutical company with strong presence in Indian market, specializing in chronic segments and offering quality medicines at affordable prices |
857 | |||
| 26 |
SILVER OAK UNIVERSITYsilveroakuni.ac.in
A premier private institution offering engaging learning experiences, futuristic curriculum, advanced technology, eminent faculty, strong industry ties, and innovative education solutions |
835 | |||
| 27 |
Cygnet.Onecygnet.one
Consolidates specialized offerings in compliance, digital engineering, enterprise modernization, data, AI, analytics hyper automation, test automation, and digital signature for global clients. |
821 | |||
| 28 |
Bodal Chemicals Ltdbodal.com
A fast-growing, reliable public limited company in the dye stuff industry, known for its low production costs and impressive growth |
768 | |||
| 29 | 746 | ||||
| 30 |
TEXSPIN BEARINGStexspin.com
A leading contributor to the automotive industry since 1961, specializing in technological components and systems with customized solutions backed by extensive R&D |
727 | |||
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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 Ahmedabad
- The largest companies in Ahmedabad 544
- Multinational companies in Ahmedabad 123
- Manufacturers in Ahmedabad 107
- IT Services and IT Consulting companies in Ahmedabad 82
- IT services companies in Ahmedabad 73
- Professional services firms in Ahmedabad 52
- Publicly traded companies in Ahmedabad 41
- Financial Services companies in Ahmedabad 36
- Corporate groups and holding companies in Ahmedabad 36
- Hardware manufacturers in Ahmedabad 35
- Retail chains in Ahmedabad 35
- Energy companies in Ahmedabad 33
- AI companies in Ahmedabad 32
- Critical infrastructure operators in Ahmedabad 31
- Financial services firms in Ahmedabad 31
- Pharmaceutical companies in Ahmedabad 29
- Education providers in Ahmedabad 28
- Pharmaceutical Manufacturing companies in Ahmedabad 27
- Consulting firms in Ahmedabad 26
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 New Delhi 126
- 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 Kolkata 44
- Companies with in-house R&D in Coimbatore 41
- Companies with in-house R&D in Vadodara 40