The companies listed here are primarily large organizations with significant workforces, many of which are headquartered in Indiana. They span various sectors, including pharmaceutical manufacturing, higher education, and industrial manufacturing. For instance, Cummins Inc. specializes in motor vehicle manufacturing, while Eli Lilly and Company is a pharmaceutical company discovering medicines. Purdue University is a major research university, and Corteva Agriscience focuses on agricultural solutions. Zimmer Biomet is a global leader in medical technology, and Berry Global, Inc. offers innovative packaging solutions.
A notable pattern among these companies is the strong presence of higher education institutions, with Indiana University, Purdue University, Indiana University Bloomington, and the University of Notre Dame all appearing on the list. This suggests a robust academic and research environment contributing to the state's R&D landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Cummins Inc.cummins.com
empowering diverse professionals through career growth, innovation, and development in engineering, manufacturing, marketing, and supply chain roles worldwide |
60,000 | |||
| 2 |
Eli Lilly and Companylilly.com
A pharmaceutical company dedicated to discovering medicines, improving disease management, and giving back to communities through philanthropy and volunteerism |
56,750 | |||
| 3 |
Indiana Universityiu.edu
Public university system with nine campuses across Indiana, providing diverse educational opportunities and community engagement throughout the state. |
29,726 | |||
| 4 |
Purdue Universitypurdue.edu
Major research university offering top programs in science, engineering, pharmacy, business, and agriculture with diverse global student community. |
25,360 | |||
| 5 |
Corteva Agrisciencecorteva.com
An agricultural company specializing in innovative solutions, seed, crop protection, and digital products to enhance productivity for farmers and enrich lives throughout the food system |
23,468 | |||
| 6 |
Zimmer Biometzimmerbiomet.com
Global medical technology leader, maximizing mobility and improving health through innovative products, digital and robotic technologies, leveraging data, analytics, and AI. |
19,077 | |||
| 7 |
Indiana University Bloomingtonbloomington.iu.edu
Residential, research-intensive campus offering academic excellence, professional programs, global initiatives, and nationally ranked schools in various disciplines to students |
18,459 | |||
| 8 |
University of Notre Damend.edu
Provides undergraduate and graduate education with a strong Catholic mission, emphasizing research and academic excellence in the United States. |
13,079 | |||
| 9 |
Berry Global, Inc.berryglobal.com
A global packaging company offering innovative solutions for customers worldwide, with a focus on sustainability and the circular economy |
10,890 | |||
| 10 |
SMCsmcusa.com
A global leader in manufacturing pneumatic technology for industrial automation with a US subsidiary, offering career opportunities Join our team! |
9,685 | |||
| 11 |
Elancoelanco.com
A global animal health company providing innovative products and services for pets and farm animals, empowering customers to enhance animal well-being and advance society |
9,362 | |||
| 12 |
Cook Medicalcookmedical.com
A family-owned company since 1963, Cook Medical develops innovative medical devices, biologic materials, and cellular therapies to improve healthcare outcomes |
8,283 | |||
| 13 |
Indiana University School of Medicinemedicine.iu.edu
A top-ranked medical school offering high-quality education, access to leading research, and a vibrant campus life in multiple Indiana cities |
5,277 | |||
| 14 |
Hillenbrandhillenbrand.com
A global industrial company providing mission-critical processing equipment and solutions to customers in over 100 countries, focused on excellence, collaboration, and innovation |
5,178 | |||
| 15 |
Toyota Material Handling North America
Company sells, manufactures, and distributes forklifts across North America, supporting numerous associates, dealers, and solution centers with strong revenue. |
4,289 | |||
| 16 |
Samtec Incsamtec.com
A global connector company founded in 1976, prioritizing people, exceptional service, quality products, and innovative technologies for customers in 125+ countries |
3,459 | |||
| 17 |
Dow AgroSciencescorteva.com
Agricultural technology company formerly known as Dow AgroSciences, now part of Corteva Agriscience Visit Corteva's website for updates |
3,352 | |||
| 18 |
Allison Transmissionallisontransmission.com
A global leader in designing and manufacturing vehicle propulsion solutions for commercial and defense vehicles, as well as electrified propulsion systems worldwide |
3,022 | |||
| 19 |
Wabashonewabash.com
Leader in transportation solutions, manufacturing a wide range of trailers and truck bodies Also developing digital platforms for enhanced customer experience |
2,671 | |||
| 20 |
Kimball Electronicskimballelectronics.com
Contract manufacturing of durable electronics products with engineering, supply chain, design, testing, and regulatory support for multiple industries worldwide. |
2,593 | |||
| 21 |
Beckman Coulter Life Sciencesbeckman.com
Develop laboratory instruments and solutions enhancing workflow efficiency, reliability, and innovation in liquid handling, genomics, and particle analysis. |
2,331 | |||
| 22 |
Biometzimmerbiomet.com
A medical device company specializing in orthopedic solutions was acquired in 2015, leading to the establishment of Zimmer Biomet |
2,051 | |||
| 23 |
Delta Faucet Companydeltafaucetcompany.com
A leading manufacturer of residential and commercial faucets, focusing on innovation, collaboration, and employee development to create a positive culture |
1,961 | |||
| 24 |
Inotivinotiv.com
A scientific research company offering comprehensive services and products, with a focus on delivering high-quality data and insights for success |
1,888 | |||
| 25 |
Franklin Electricfranklin-electric.com
A global provider of water and fueling systems, specializing in clean water systems, water transfer, grey water systems, and fueling solutions Headquarters in Indiana |
1,857 | |||
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. | |||||
| 26 |
Allegion USus.allegion.com
Manufacture and supply of door security products and solutions for homes, businesses, schools, and various institutions worldwide. |
1,789 | |||
| 27 |
Gaylor Electric, Inc.gaylor.com
National electrical contractor specializing in high-quality project delivery, financial excellence, and fostering employee inspiration to build client trust and loyalty. |
1,645 | |||
| 28 | 1,428 | ||||
| 29 |
The Heritage Groupthgrp.com
A family-owned company with diverse businesses in construction, materials, environmental services, and chemicals, focusing on innovation, research, and sustainability |
1,422 | |||
| 30 |
Patrick Industries, Inc.patrickind.com
A leading component solutions provider for RV, Marine, Powersports, and Housing markets, empowering manufacturers and outdoor enthusiasts with quality products and innovation |
1,114 | |||
| 31 |
AM General LLCamgeneral.com
Specialized vehicle design, engineering, manufacturing, and support for commercial and military clients Also produces diesel engines and automatic transmissions Strong focus on workforce diversity and equal opportunity |
1,104 | |||
| 32 |
Jayco, Inc.jaycofamily.com
A family-owned company founded in 1968 that designs and manufactures recreational vehicles, prioritizing exemplary products and exceptional customer service |
1,076 | |||
| 33 |
IMMIimminet.com
A global leader in designing and manufacturing advanced safety systems for various sectors, dedicated to bringing safety innovations worldwide |
994 | |||
| 34 |
Riley Hospital for Childrenrileychildrenshospital.com
A hospital and healthcare company in Indianapolis, Indiana, dedicated to providing specialized care for children at Riley Hospital for Children |
974 | |||
| 35 |
Closure Systems International (CSI)csiclosures.com
Global leader designing and manufacturing innovative closures for consumer and industrial markets, providing high-quality closures, capping equipment, technical services, and sustainable solutions |
925 | |||
| 36 |
FLANDERSflandersinc.com
Provider of sustainable solutions for heavy industrial equipment, specializing in repairing, reusing, and recycling to enhance performance and extend equipment lifespan |
894 | |||
| 37 | 
Jhonson Control Inc
Global technology and industrial leader with 170,000 employees, offering energy and operational efficiency solutions for buildings, automotive batteries, and interior systems for automobiles |
884 | |||
| 38 |
AgReliant Genetics, LLCgdmseeds.com
A leading seed company based in Westfield, Indiana, offering unique genetics and high-performing hybrids through its brands AgriGold, LG Seeds, and PRIDE Seeds Committed to workforce health and community well-being |
869 | |||
| 39 |
Alverno Laboratoriesalvernolabs.com
Management of hospital laboratories, extensive patient service centers, advanced pathology testing, and ISO-certified central laboratory serving Midwest communities. |
846 | |||
| 40 |
Beck's Hybridsbeckshybrids.com
A leading family-owned seed company serving Midwest and Mid-South farmers, offering a wide range of quality seeds and dedicated service |
806 | |||
| 41 |
Linde Advanced Material Technologieslinde-amt.com
Provider of protective coatings that improve product life, reduce cost, enhance performance, and mitigate risks, offering industry knowledge, technical expertise, and global resources |
803 | |||
| 42 |
Naval Surface Warfare Center, Crane Divisionnavsea.navy.mil
NSWC Crane provides acquisition engineering, technical support, and product engineering for sensors, electronic warfare, and special warfare weapons to support the Warfighter globally |
783 | |||
| 43 |
Ryobi Die Casting, Inc.ryobidiecasting.com
Manufacturer of die casting components with facilities in USA, Japan, China, Northern Ireland, and Mexico Offering competitive wages, benefits, and career development opportunities |
779 | |||
| 44 |
Fort Wayne Metalsfwmetals.com
Precision wire manufacturer offering a wide range of materials and services for demanding applications worldwide, specializing in custom alloy development and mechanical assembly |
776 | |||
| 45 |
Bastian Solutionsbastiansolutions.com
Design and deliver distribution and production solutions with consulting, engineering, automation, robotics, software, and material handling equipment worldwide. |
765 | |||
| 46 |
Medtronic Diabetes
Medical devices company specializing in diabetes management, located in Indiana, US, committed to improving the lives of individuals with diabetes |
741 | |||
| 47 |
Haynes Internationalhaynesintl.com
Leading developer and manufacturer of high-performance alloys for high-temperature and corrosion applications in aerospace, chemical processing, and industrial gas turbine industries |
721 | |||
| 48 | 657 | ||||
| 49 |
Grote Industriesgrote.com
A leading manufacturer supplying lighting products and safety systems for heavy duty vehicles, industries, and military applications worldwide |
612 | |||
| 50 |
Primexprimexplastics.com
An international leader in extruded plastics, Primex offers custom sheet extrusion, colorants, compounds, additives, design, and fabrication services for various industries |
558 | |||
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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 11, 2026.
More company lists in Indiana
- The largest companies in Indiana 1,520
- Manufacturers in Indiana 242
- Multinational companies in Indiana 177
- Education providers in Indiana 143
- Critical infrastructure operators in Indiana 129
- Healthcare providers in Indiana 123
- Hospitals and Health Care companies in Indiana 118
- Hardware manufacturers in Indiana 116
- Retail chains in Indiana 106
- Financial services firms in Indiana 105
- Public sector organisations in Indiana 88
- Construction companies in Indiana 75
- Higher Education companies in Indiana 72
- Family-owned companies in Indiana 71
- Contract manufacturers in Indiana 70
- Professional services firms in Indiana 69
- Automotive manufacturers and suppliers in Indiana 62
- Non-profit Organizations companies in Indiana 58
- Motor Vehicle Manufacturing companies in Indiana 54
- Corporate groups and holding companies in Indiana 54
- Financial Services companies in Indiana 53
- IT services companies in Indiana 51
- IT Services and IT Consulting companies in Indiana 50
- Consulting firms in Indiana 48
The same list elsewhere in United States
- Companies with in-house R&D in the United States 6,796
- Companies with in-house R&D in California 1,276
- Companies with in-house R&D in Texas 442
- Companies with in-house R&D in New York State 419
- Companies with in-house R&D in Massachusetts 396
- Companies with in-house R&D in Illinois 322
- Companies with in-house R&D in Michigan 287
- Companies with in-house R&D in Ohio 277
- Companies with in-house R&D in Pennsylvania 255
- Companies with in-house R&D in New Jersey 224
- Companies with in-house R&D in Florida 221
- Companies with in-house R&D in Alabama 214
- Companies with in-house R&D in Georgia 173
- Companies with in-house R&D in Virginia 166
- Companies with in-house R&D in North Carolina 158
- Companies with in-house R&D in Wisconsin 154
- Companies with in-house R&D in Minnesota 146
- Companies with in-house R&D in Washington State 140
- Companies with in-house R&D in Colorado 113
- Companies with in-house R&D in Maryland 107
- Companies with in-house R&D in New York 223
- Companies with in-house R&D in San Francisco 147
- Companies with in-house R&D in Houston 129
- Companies with in-house R&D in San Jose 103