These Italian companies specialize in cybersecurity, with a strong presence in IT services, telecommunications, and defense. The list includes large established groups such as Leonardo, a multinational in aerospace, cybersecurity, and military systems, and TIM, which provides fixed, mobile, and digital services. Mid-sized firms like Reply deliver consulting and digital services using AI and big data, while Engineering Group focuses on digital transformation and proprietary solutions.
A notable pattern is the concentration of headquarters in major cities. Rome hosts several key players, including Engineering Group and DGS, which offers security and digital transformation services. Milan is another significant hub, with companies like Lutech, an innovation company providing end-to-end digital transformation solutions, and BV TECH, specializing in technology, security, and innovation.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Leonardoleonardo.com
Defense and security multinational company specializing in aerospace, cybersecurity, military systems, and advanced technology solutions |
38,521 | |||
| 2 |
TIMgruppotim.it
Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil. |
22,417 | |||
| 3 | 17,188 | ||||
| 4 |
Engineering Groupeng.it
Leading digital transformation company with global presence, specializing in innovation, proprietary solutions, R&D, and diverse market expertise. |
11,815 | |||
| 5 |
Lutechlutech.group
A leading innovation company in Italy, Lutech Group offers end-to-end solutions for digital transformation, encompassing consulting, solutions, cybersecurity, services, and cloud technologies |
4,024 | |||
| 6 |
DGSdgsspa.com
Specialized group offering security and digital transformation services, with a focus on excellence, innovation, and partnership within the ICT sector in Italy |
3,068 | |||
| 7 |
TINEXTA S.P.A.tinexta.com
An industrial group providing innovative solutions for digital transformation and growth worldwide, specializing in Digital Trust, Cyber Security, and Business Innovation sectors |
2,219 | |||
| 8 |
ELT Groupeltgroup.net
A global leader in electronic defense systems, specializing in managing the electromagnetic spectrum and offering technology solutions for defense, cyber, space, and biodefense |
1,728 | |||
| 9 |
Italtelitaltel.com
The company provides communication technology solutions, integrates traditional and new technologies, offers managed services, and focuses on sustainability and inclusivity |
1,398 | |||
| 10 |
MTmilanoteleport.com
Specializing in alternative telecommunication solutions, including VSAT, 4G/5G, NOC services, cybersecurity, and IoT integration, with on-site and remote support available 24/7 |
1,384 | |||
| 11 |
TIM Enterprisetimenterprise.it
TIM BUSINESS offers integrated, modular, and flexible telecommunications solutions for professionals, businesses, and enterprises in Italy, with quality service and customized options |
1,359 | |||
| 12 |
CSI-Piemontecsipiemonte.it
An Italian IT company specializing in creating digital services for public administration, supporting the country's digital transformation with certified data center, cloud, and connectivity services |
1,267 | |||
| 13 |
IMQ S.p.A.imq.it
Conformity assessment company providing certification services, testing, inspections, and audits to ensure safety, quality, and performance in various industries |
1,075 | |||
| 14 |
BV TECHbvtech.com
A leading Group with expertise in technology, security, and innovation Offering advanced platforms, knowledge, and services in cyber, mobility, health, networks, and communication Operating in Italy, USA, and UK |
1,017 | |||
| 15 |
Var Groupvargroup.com
Provides innovative ICT solutions and services to enhance competitiveness across various Italian industries through specialized business units. |
1,014 | |||
| 16 |
Elmec Informaticaelmec.com
Italian ICT company providing digitalization services for businesses, with expertise in cloud automation, cybersecurity, IoT, and more Focus on quality, transparency, and community impact |
981 | |||
| 17 |
Namirialnamirial.com
Provides digital transaction management services including e-signature, trust services, authentication, electronic seals, archiving, and invoicing solutions. |
942 | |||
| 18 |
Kireykireygroup.com
Kirey Group designs and provides tailored high-quality technological solutions to help businesses evolve into agile and secure organizations, embracing change positively |
842 | |||
| 19 |
Retelitretelit.it
Italian leader in digital transformation projects, offering integrated ICT telco and digitalization services with comprehensive fiber-optic network and nationwide Data Centers |
837 | |||
| 20 |
Project Informaticaweareproject.it
A leading Italian ICT system integrator providing top-notch services and solutions, partnering with companies to support IT projects from simple to complex |
728 | |||
| 21 |
AXITEA SPAaxitea.com
Italian company specializing in developing personalized security solutions for businesses, commercial activities, institutions, private residences, and territories, focusing on customer relationships |
707 | |||
| 22 |
aizoOn Technology Consultingaizoongroup.com
A global technology consulting company focused on innovation, sustainability, and digital transformation through a scientific and quantitative approach |
702 | |||
| 23 |
Relatechrelatech.com
A digital enabler company offering cutting-edge digital transformation services, cloud-based platforms, and expertise in technologies like AI, Blockchain, and cybersecurity |
699 | |||
| 24 |
Innovawayinnovaway.it
This company provides multilingual IT service management and develops ICT solutions, aiming to enhance global competitiveness through collaboration and innovation in digital transformation processes |
613 | |||
| 25 |
S3K S.p.A. | Security of the Third Millenniums3k.it
The company specializes in transforming digital environments to be easily accessible, secure, and sustainable, guiding clients through change processes with various competencies |
508 | |||
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 |
TXT E-TECHtxtgroup.com
The company offers software solutions, products, and services to industries facing global competition, focusing on performance, quality, efficiency, and compliance |
504 | |||
| 27 |
Spike Replyreply.com
A specialized company in security and personal-data protection, offering comprehensive risk management solutions through vendor-independent security services and partnerships |
498 | |||
| 28 |
NETGROUPnetgroup.it
An international group specializing in digital transformation for over 30 years, with expertise in Big Data, Cloud, SAP, IoT, Mobile, and cybersecurity Emphasizes human-centric digital solutions |
484 | |||
| 29 |
IRIDEOS S.p.A.retelit.it
The company supports digital transformation through fiber optics, cloud, data centers, IT services, and security solutions, forming Italy's largest B2B ICT player |
480 | |||
| 30 |
Protiviti Italiaprotiviti.com
A multinational consulting group specializing in Risk Management, Organization, Compliance, and Control strategies for businesses, with a strong international presence |
461 | |||
| 31 | 433 | ||||
| 32 |
Tinexta Cybertinextacyber.com
A dynamic group specializing in cybersecurity, system integration, and digital transformation services for large enterprises, financial institutions, and public sector, ensuring compliance and business continuity |
413 | |||
| 33 |
NSR datasecuritynsr.it
An Italian Computer Engineering company specializing in ICT projects, information security, and data protection services for various industries |
394 | |||
| 34 |
NEVERHACK Italyneverhack.com
A multinational company specializing in providing innovative ICT solutions across various industries, focusing on expansion through partnerships, M&A, and global development |
382 | |||
| 35 |
Gruppo Euris Spaeuris.it
Providing IT services and solutions including consulting, cybersecurity, AI, ERP, and digital transformation to optimize business processes across Europe. |
378 | |||
| 36 |
SIPAL S.p.A.sipal.it
A leading engineering company providing flexible, rapid, and competitive solutions to both civilian and military markets with over 40 years of experience |
371 | |||
| 37 |
UNGUESSunguess.io
AppQuality creates effective digital solutions by harnessing the power of a community of professional testers, end-users, and UX Researchers |
366 | |||
| 38 |
Axians Italiaaxians.it
Provides consulting, design, integration, maintenance, and management of convergent ICT infrastructures to help businesses achieve digital transformation, business continuity, and security. |
337 | |||
| 39 | 333 | ||||
| 40 |
CYBEROOcyberoo.com
European company specialized in cybersecurity, monitoring data security 24/7 to protect, guarantee, create, and manage every facet of your business. |
331 | |||
| 41 |
T-Defencetinextadefence.it
Defence Tech specializes in cyber security, electronics, and communication & control systems to create safer digital infrastructures for national defense and private sectors |
330 | |||
| 42 |
WIIT - The Premium Cloudwiit.cloud
A leading European player in Cloud Computing, offering Hosted Private and Hybrid Cloud services, Cyber Security, Disaster Recovery, and Business Continuity solutions |
327 | |||
| 43 | 324 | ||||
| 44 |
VEM Sistemivem.com
This company offers hardware, software, and services to create intelligent solutions for sharing information and content anywhere They specialize in networking technologies and cloud computing |
322 | |||
| 45 |
Corvallis - ora Tinexta Cybertinextacyber.com
Corvallis is an Italian IT services company offering value-added solutions to banking, insurance, industry, public sector clients through consultancy, integration, products, and outsourcing |
311 | |||
| 46 |
Softlab S.p.A.soft.it
A publicly traded international company offering Business Advisory, ICT Consulting, and Digital Entertainment services through a network of professionals and innovative solutions |
310 | |||
| 47 |
Lantech Longwavelantechlongwave.it
A leading European software house in the Zucchetti Group, providing innovative and secure technology solutions in areas such as Security, Networking, Datacenter & Cloud, and Software Development |
310 | |||
| 48 | 294 | ||||
| 49 |
A Company Srla-company.it
Knowledge-based company in Italy specializing in Business Continuity Management, Information Security, and Software & Services, offering innovative solutions, consulting, and training services |
293 | |||
| 50 |
Key Partnerkeypartner.com
Consulting firm specializing in digital transformation, strategic planning, and cybersecurity, supporting companies with innovative technology and data-driven growth solutions. |
270 | |||
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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 12, 2026.
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