This selection of Lithuanian companies with in-house R&D includes a mix of large established institutions and mid-sized firms. Higher education and healthcare are prominent, with entities like Kaunas University of Technology, a technological university, and VUL Santaros klinikos, one of Lithuania's largest hospitals. The telecommunications sector is also well-represented by companies such as Teltonika, which designs and manufactures IoT devices, and Teltonika Telematics, specializing in vehicle telematics solutions. Other notable companies include Light Conversion, a manufacturer of femtosecond lasers, and Kongsberg NanoAvionics, a small satellite bus manufacturer.
A clear pattern in this data is the concentration of R&D activities in Lithuania's two largest cities. Many of these companies are headquartered in Vilnius, including FL Technics, a global provider of aircraft maintenance, and VILNIUS TECH, an innovative university. Kaunas also features significantly, hosting the Lithuanian University of Health Sciences and Teltonika Networks, which produces network connectivity equipment.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Kaunas University of Technologyktu.edu
Innovation-focused technological university in Lithuania offering interdisciplinary study programs, research collaborations with industry, and a strong international presence |
1,864 | |||
| 2 |
FL Technicsfltechnics.com
Global provider of tailored aircraft maintenance, repair, and overhaul services with extensive network and certifications across multiple continents. |
1,307 | |||
| 3 |
Lithuanian University of Health Scienceslsmu.lt
Leading university in Lithuania specializing in health, life, agriculture, and veterinary sciences Training specialists and conducting significant scientific research internationally |
1,189 | |||
| 4 |
VILNIUS TECH - Vilnius Gediminas Technical Universityvilniustech.lt
Innovative university educating highly qualified specialists, leading in technological sciences, offering modern, labor market-oriented studies and extensive research facilities. |
1,136 | |||
| 5 |
VUL Santaros klinikossanta.lt
VUL Santaros klinikos is one of the largest hospitals in Lithuania, providing high-quality specialized healthcare services and conducting ongoing educational and scientific research |
1,097 | |||
| 6 |
The Hospital of Lithuanian University of Health Sciences Kauno klinikoskaunoklinikos.lt
The Hospital of Lithuanian University of Health Sciences Kauno klinikos is a leading healthcare institution providing high-quality medical services in Lithuania |
902 | |||
| 7 |
Teltonikateltonika-iot-group.com
A rapidly growing company specializing in designing, manufacturing, and selling high-quality IoT devices, dedicated to providing innovative solutions for clients and supporting employee growth |
860 | |||
| 8 |
Teltonika Telematicsteltonika-gps.com
Specializing in telematics solutions for vehicles of all sizes, we provide innovative ways to monitor and optimize resources, reduce costs, and enhance safety for various industries |
765 | |||
| 9 |
Mykolas Romeris Universitymruni.eu
A university focused on social studies offering international joint study programs, double or triple diplomas, and promoting social innovations and research |
749 | |||
| 10 |
Teltonika Networksteltonika-networks.com
Manufactures professional network connectivity equipment for international markets, specializing in IoT, M2M communication, Industry 40, Smart City, and Green Energy solutions |
744 | |||
| 11 |
Light Conversionlightcon.com
Specializing in femtosecond lasers and optical systems, the company designs and manufactures products for industrial, scientific, and medical applications worldwide, emphasizing research and development |
464 | |||
| 12 |
Kauno Kolegijakaunokolegija.lt
A state-owned institution in Lithuania offering higher education in technologies, social sciences, biomedicine, humanities, and arts with over 40 study programs |
381 | |||
| 13 |
Nandonandobio.com
Biotechnology company specializing in microbiological products and chemical additives for agriculture and industry, utilizing innovation and collaboration for product development |
328 | |||
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. | |||||
| 14 |
CyberCarecybercare.cc
Innovative customer success company redefining tech support with human touch and innovative solutions globally, powered by Tesonet |
307 | |||
| 15 |
Kongsberg NanoAvionicsnanoavionics.com
Manufacturer of high-performance small satellite buses providing mission integration, launch brokerage, and logistics services for affordable space-based applications and satellite service markets. |
229 | |||
| 16 |
MANTINGAmantinga.lt
Production and export of diverse frozen bakery and convenience foods using advanced technologies, certified hygiene, and wide product assortment. |
187 | |||
| 17 |
BetGamesbetgames.tv
A global provider of live dealer betting products focused on entertainment, safety, and low-risk betting, serving clients worldwide with licensed games |
173 | |||
| 18 |
RSI Europersieu.com
Develops and manufactures innovative remotely controlled systems including initiation equipment and FPV drones for combat engineers and explosives experts in active zones. |
96 | |||
| 19 |
Brolis Semiconductorsbrolis-defence.com
High-tech company specializing in developing and manufacturing semiconductor optoelectronic devices and electro-optical systems for defense and security applications Headquarters in Vilnius, Lithuania |
70 | |||
| 20 | 60 | ||||
| 21 |
Astrolightastrolightspace.com
A company developing secure telecommunication systems for aerospace, defense, and governmental applications using expertise in radio, photonics, and satellite technology |
46 | |||
| 22 |
Grainmoregrainmore.lt
Specializing in grain processing and probiotic manufacturing, our company uses advanced technology to offer natural, safe, and premium quality products to customers |
35 | |||
| 23 |
DIONE ICE CREAMdioneicecream.com
A renowned ice cream producer since 1950, known for creating unique flavors with finest natural ingredients, focused on taste and quality |
32 | |||
| 24 |
Integrated Opticsintegratedoptics.com
Manufacturer of ultra compact lasers and integrated optical devices, specializing in high-quality, self-contained laser sources with superior size/power ratio and affordability |
30 | |||
| 25 |
Blackswan Spaceblackswanspace.com
Building advanced software products for time-critical solutions in in-space infrastructure for complex missions |
18 | |||
| 26 |
THERMOWAVEthermowave.com
An innovative outdoor performance apparel company with 90 years of experience, focused on supporting modern outdoor enthusiasts with high-quality, EU-made clothing |
14 | |||
| 27 |
Cellular Expertcellular-expert.com
Specializing in telecom software development using ArcGIS, providing services in network planning, optimization, propagation calculations, and consultancy for various industries globally |
13 | |||
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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.
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