| # | Company | Employees |
|---|---|---|
| 1 |
FCA Fiat Chrysler Automobilesstellantis.com
A leading automaker and mobility provider now known as Stellantis, dedicated to creating innovative transportation solutions for the future |
47,673 |
| 2 | 46,311 | |
| 3 |
Rolls-Roycerolls-royce.com
Engineering excellence driving critical technologies for air, sea, and land, powering, protecting, and connecting people worldwide. |
31,649 |
| 4 |
Babcock International Groupbabcockinternational.com
An international defence company providing product and service solutions to enhance customers' capabilities and assets, offering opportunities for professionals to grow |
16,474 |
| 5 |
Hitachi Railhitachirail.com
Hitachi Rail provides innovative technology solutions for rail transportation, focusing on sustainability, digital transformation, and reducing carbon emissions globally |
15,527 |
| 6 |
GKN Automotivegknautomotive.com
Development and supply of advanced driveline systems and electric drive technologies powering millions of electrified vehicles worldwide. |
8,992 |
| 7 |
Pentairpentair.com
This company provides sustainable water solutions for residential, business, and industrial use globally, focusing on improving lives and the environment |
7,711 |
| 8 |
Convatecconvatecgroup.com
Delivering pioneering and trusted medical solutions focused on improving the lives of patients and healthcare providers worldwide. |
6,954 |
| 9 |
SumUpsumup.co.uk
A global financial technology company supporting over 4 million small merchants in 36 markets, committed to environmental and social causes |
4,186 |
| 10 |
LivaNovalivanova.com
Global medical technology company with advanced technologies and breakthrough treatments focused on improving patient lives worldwide in cardiopulmonary and neuromodulation |
3,545 |
| 11 |
Invensys - Acquired by Schneider Electricse.com
Designing and supplying advanced technologies that optimize operational performance and profitability for industrial and commercial customers, including software, systems, and controls. |
3,544 |
| 12 |
Ultra Electronics Groupcobhamultra.com
Global defense and security company providing mission-critical solutions in C2ISR, underwater warfare, and intelligent sensors for government and military needs. |
2,532 |
| 13 |
Dojodojo.careers
A scaling fintech company empowering businesses and diners with fast funding, payments, smart integrations, virtual queues, and restaurant bookings through innovative technology |
1,841 |
| 14 |
ghdghdhair.com
A stylish and innovative company known for its acclaimed range of hair stylers, focused on growth, innovation, and global expansion |
1,772 |
| 15 |
Huntinghuntingplc.com
Global energy services provider to top oil and gas companies, specializing in manufacturing and distributing products for extraction Headquartered in the UK |
1,713 |
| 16 |
Ocean Infinityoceaninfinity.com
Innovative company using robotic technology for marine operations, data collection, and maritime solutions with a focus on sustainability and innovation |
1,591 |
| 17 | 1,227 | |
| 18 | 1,140 | |
| 19 |
Smiths Interconnectsmithsinterconnect.com
Design and manufacture of high-reliability electronic components, microwave, optical, and RF products for aerospace, defense, medical, semiconductor, and industrial markets. |
1,090 |
| 20 | 877 | |
| 21 |
InPost UKinpost.co.uk
Europe's top APM service provider revolutionizing last mile e-commerce with automated parcel machines for convenient, sustainable, and efficient deliveries |
659 |
| 22 | 581 | |
| 23 |
Barclaycard Paymentsbarclaycard.co.uk
Leading global payment experts, providing payment processing and solutions for businesses to thrive, grow, and integrate seamless payments across various ecosystems. |
469 |
| 24 |
Podpodenergy.com
Leading provider of electric vehicle charging solutions for homes, public spaces, and workplaces, making clean energy easy, affordable, and accessible. |
453 |
| 25 |
DAIdematic.com
Global software development group within Dematic, designing and supporting intelligent automated solutions for manufacturing, warehousing, and distribution worldwide Part of KION Group |
311 |
| 26 |
Ohmeohme-ev.com
An end-to-end electric charging solutions provider for homes, businesses, and on-the-go, supporting the global transition to renewables |
310 |
| 27 |
Disguisedisguise.one
Global technology company providing software, hardware, and services for live events, virtual production, immersive experiences, and broadcast industries. |
309 |
| 28 |
Winnowwinnowsolutions.com
Develops technology to help organizations cut food waste, providing data for kitchen production process improvements, saving money, and reducing environmental impact. |
178 |
| 29 |
Connected Kerbconnectedkerb.com
An electric vehicle charging company dedicated to making charging inclusive, convenient, and reliable, while supporting sustainable mobility and future technologies #ConnectedForGood |
120 |
| 30 |
CP Electronicslegrand.co.uk
Specializing in energy-saving controls for lighting, heating, and ventilation, the company offers innovative solutions to effectively manage lighting and reduce energy costs |
116 |
| 31 |
Dronamicsdronamics.com
Revolutionary fixed-wing cargo UAV enables affordable, long-distance transport, opening new trade routes and revolutionizing air cargo industry |
112 |
| 32 |
Cummins Europecummins.com
Design, manufacture, and service advanced powertrain technologies including diesel, electric, hydrogen, and components for diverse industries across Europe. |
90 |
| 33 |
CARNOTcarnotengines.com
We develop highly efficient, zero emission powertrains for long-haul transport and off-grid power, aiming to reduce global CO2 emissions and accelerate the transition to net zero |
84 |
| 34 | 82 | |
| 35 |
Osprey Charging Networkospreycharging.co.uk
Funds, installs, and manages a UK-wide rapid electric vehicle charging network, powered by 100% renewable electricity, accepting various payment methods. |
68 |
| 36 |
SatVusatellitevu.com
Innovative space tech company using high-resolution thermal imaging to promote energy efficiency, reduce carbon footprint, and drive sustainability worldwide |
43 |
| 37 |
SGW Globalsgwglobal.com
A global company specializing in designing, manufacturing, and distributing consumer electronic products and services with a focus on innovation and quality |
34 |
| 38 | 13 | |
| 39 |
GiveVisiongivevision.net
GiveVision enhances accessibility at live events for individuals with impaired vision, making the experience more inclusive and enjoyable |
12 |
| 40 |
Vochlea Musicvochlea.com
Innovative team improving music creation workflow with Voice-to-MIDI technology and AI Audio Engine, creating cutting-edge products for live music interaction |
7 |
| 41 |
Owl + Larkowllark.com
This company focuses on optimizing health by aligning with circadian rhythms, offering products like mattresses, eye masks, and weighted blankets for better sleep |
6 |
| 42 |
SNATCHEDsnatchedofficial.com
A high-end brand that designs stylish and environmentally conscious fitness equipment with a strong emphasis on quality |
6 |
| 43 |
Drinkfingerdrinkfinger.com
The company creates innovative consumer products in the beverage and sporting industries, designed for functionality, engagement, and advertising opportunities to enhance brand exposure |
5 |
| 44 |
LABOTEST LTDlabotest.co.uk
Specializing in home-use light-based skin treatment products, LaboTest offers IPL hair removal, skin rejuvenation, and acne clearance devices with cutting-edge technology in Europe |
3 |
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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 Oct 24, 2026.
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