The companies with in-house R&D in Wilmington include large established firms and several younger companies. Key sectors are chemical manufacturing, biotechnology, and software. DuPont creates essential innovations, Solenis provides sustainable solutions for water-intensive industries, and Charles River Laboratories focuses on therapeutics and animal care. In the software sector, Sovos offers IT solutions for global compliance regulations, while nCino provides an agentic platform for financial institutions.
A notable pattern is the strong presence of chemical manufacturing, with companies like Ashland, The Chemours Company, and Solenis all headquartered in Wilmington. This indicates a specialized cluster within the local economy. Additionally, there is a significant representation of companies in healthcare and life sciences, including medical technology and pharmaceutical manufacturing.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Analog Devicesanalog.com
Global semiconductor company combining analog, digital, and software technologies to advance digitized factories, mobility, healthcare, and climate solutions. |
27,234 | |||
| 2 |
DuPontdupont.com
A global company focused on creating essential innovations, uncovering insights, and inventing a better now for a brighter future |
22,104 | |||
| 3 |
Charles River Laboratoriescriver.com
Guided by strong purpose, creating healthier lives, focusing on therapeutics for patients, animal care, planet well-being, and its passionate, skilled people. |
22,000 | |||
| 4 |
Solenissolenis.com
A global specialty chemicals producer offering sustainable solutions for water-intensive industries with a wide range of products and technologies for improving operational efficiency and environmental impact |
21,407 | |||
| 5 |
Ashlandashland.com
This company provides additives and specialty ingredients to various consumer and industrial markets globally, focusing on innovative solutions for complex customer problems. |
5,843 | |||
| 6 |
University of North Carolina Wilmingtonuncw.edu
A coastal university emphasizing teaching, research, and service, offering a range of baccalaureate, master's, and doctoral programs with a focus on student engagement and diversity |
5,547 | |||
| 7 |
The Chemours Companychemours.com
A company driven by chemistry, providing sustainable solutions for various industries like automotive, electronics, energy, and construction through Courageous Chemistry™ |
4,528 | |||
| 8 |
Enovisenovis.com
A medical technology company creating innovative solutions for better patient outcomes, improved workflows, and active lifestyles through collaboration with healthcare professionals |
3,892 | |||
| 9 |
Incyteincyte.com
Global biopharmaceutical company focused on discovering, developing, and commercializing innovative medicines for patients with unmet medical needs in Oncology and Inflammation & Autoimmunity. |
3,425 | |||
| 10 |
Symboticsymbotic.com
This company develops innovative robotics and software for advanced automation solutions in the supply chain industry to increase efficiency and profitability |
2,074 | |||
| 11 | 1,861 | ||||
| 12 | 1,833 | ||||
| 13 |
EDBenterprisedb.com
A global provider of enterprise-class software and services for harnessing the power of Postgres, offering high availability, reliability, security, and 24x7 support |
1,534 | |||
| 14 |
Phreesiaphreesia.com
Innovative technology empowering healthcare organizations to understand and engage patients for better care experiences and efficiency in managing visits |
1,497 | |||
| 15 |
Tecomet, Inctecomet.com
Precision manufacturing solutions for medical device, aerospace, and defense industries, ensuring exceptional quality and engineering expertise to bring innovative products to market |
1,492 | |||
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 |
GE Vernova Hitachi Nuclear Energygevernova.com
A global leader in providing advanced nuclear reactors, fuel, and services through a strategic alliance between two prominent companies |
1,479 | |||
| 17 |
Onto Innovationontoinnovation.com
Provides process control, metrology, and inspection solutions for semiconductor manufacturing, addressing yield, performance, quality, and reliability challenges with global support. |
1,388 | |||
| 18 |
Alcami Corporationalcami.com
Provides integrated lab services, drug product manufacturing, cGMP pharma storage, and support services including environmental monitoring, calibration, and validation for pharmaceuticals and biologics. |
1,242 | |||
| 19 |
Chem-Aqua, Inc.chemaqua.com
A leading provider of custom water treatment solutions for boiler, cooling, and process water systems, focusing on energy efficiency and cost savings |
950 | |||
| 20 |
Atlantic Packagingatlanticpkg.com
Privately held company specializing in end-of-line packaging systems, sustainable packaging options, high performance materials, warehousing, and distribution in North and Central America |
776 | |||
| 21 |
Lake Region Medicalinteger.net
Leading medical device manufacturer providing innovative technologies in cardiac, neuromodulation, orthopedics, vascular, surgical markets, as well as batteries for niche energy applications |
776 | |||
| 22 |
Airborne Maintenance and Engineering Servicesairbornemx.com
A leading MRO service provider offering maintenance services to cargo and passenger airlines with multiple locations and extensive capabilities |
760 | |||
| 23 |
DuPont™ Spectrum™spectrumplastics.com
Leading partner in developing and manufacturing critical polymer-based components and finished devices for medical and demanding applications. |
704 | |||
| 24 |
The LYCRA Companylycra.com
Innovates and produces fiber and technology solutions for global apparel and hygiene industries, focusing on comfort and lasting performance benefits for clothing across many categories. |
611 | |||
| 25 |
InterDigital, Inc.interdigital.com
This company develops mobile and video technologies for devices, networks, and services globally, focusing on efficient broadband networks and advanced multimedia experiences |
600 | |||
| 26 |
DuPont Water Solutionsdupont.com
The company provides solutions for a sustainable energy and water future globally, assisting businesses in making real progress in every industry |
558 | |||
| 27 |
Locus Roboticslocusrobotics.com
Provides flexible warehouse automation solutions using robotics, orchestration, and AI, optimizing fulfillment workflows for various industries without fixed infrastructure. |
486 | |||
| 28 |
Chemtexchemtexus.com
Global engineering and technology company specializing in value-added project solutions for clients in various industries through process engineering and technology transfer services |
448 | |||
| 29 |
Kovalus Separation Solutionskovalus.com
Innovative separation solutions utilizing various technologies to recover high-value products, reduce waste, increase productivity, and lower costs across multiple industries |
411 | |||
| 30 | 353 | ||||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 12, 2026.
More company lists in Wilmington
- The largest companies in Wilmington 312
- Multinational companies in Wilmington 66
- SaaS companies in Wilmington 48
- IT Services and IT Consulting companies in Wilmington 40
- Software Development companies in Wilmington 40
- Manufacturers in Wilmington 33
- IT services companies in Wilmington 27
- AI companies in Wilmington 25
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 1,275
- 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 215
- 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 Indiana 104
- 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