This selection of large corporate groups and holding companies in Milano includes major players in various sectors. Saipem is a global leader in engineering and construction for energy and infrastructure, while Prysmian specializes in high-tech cables and systems. TIM provides fixed, mobile, and digital telecommunication services, and Gruppo San Donato is a large European healthcare group. Companies like A2A, Edison, Italgas, and Snam S.p.A. represent the utilities sector.
The data shows a strong presence of companies involved in infrastructure and essential services. The list includes several firms with a long history, such as Prysmian (founded 1872) and Edison (founded 1884), alongside companies founded more recently like A2A (2008) and Salini Impregilo (2014). This indicates a mix of established corporations and newer entities contributing to Milano's corporate landscape.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Saipemsaipem.com
Global leader in engineering and construction for energy and infrastructure projects worldwide, offering offshore and onshore services with a focus on sustainability and innovation |
32,000 | |||
| 2 |
Prysmianprysmian.com
A global leader in high-tech cables & systems for energy and telecom, driving the energy transition and digitalization worldwide |
28,000 | |||
| 3 |
TIMgruppotim.it
Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil. |
22,417 | |||
| 4 |
Gruppo San Donatogrupposandonato.it
Large European healthcare group integrating hospitals, research, universities, clinics, focusing on human-centered care and international expansion. |
9,474 | |||
| 5 |
A2Agruppoa2a.it
A company in Italy focused on environment, water, and energy, promoting circular economy and sustainable development goals through various services and operations |
5,026 | |||
| 6 | 4,174 | ||||
| 7 |
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 | |||
| 8 |
Randstad Italiarandstad.it
Specializing in HR services since 1960, this global company prioritizes real connections over data, combining technology with human empathy to help individuals reach their full potential |
3,808 | |||
| 9 |
Italgasitalgas.it
A leading Network Tech Company in gas, water, energy efficiency, and IT sectors, providing services to millions of customers in Italy and Greece |
3,661 | |||
| 10 |
Il Sole 24 Oreilsole24ore.com
The leading multimedia editorial group in Italy for economic, financial, professional, and cultural information, with a strong market position in services and events |
3,407 | |||
| 11 |
Snam S.p.A.snam.it
Leading European company specializing in natural gas transport, storage, and regasification services across multiple infrastructures and markets. |
3,337 | |||
| 12 |
Azimut Italiaazimut.it
Azimut is an independent Italian financial company focused on managed savings, offering a wide range of financial solutions and supporting businesses |
2,343 | |||
| 13 |
Salini Impregilowebuildgroup.com
A global industrial Group specializing in sustainable infrastructure projects such as mobility, clean energy, water management, and green buildings worldwide |
2,279 | |||
| 14 |
DentalProdentalpro.it
The largest Italian dental group with over 260 centers, 2000 employees, and 1200 dental professionals providing personalized care in modern, welcoming facilities |
2,163 | |||
| 15 |
Fedrigoni Groupfedrigoni.com
Specializing in premium specialty papers for packaging, labels, printing, and more, with a focus on innovation, sustainability, and creativity worldwide |
2,073 | |||
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 |
Gi Group Holdinggigroupholding.com
A global HR services company focused on creating value in the labor market through staffing, professional recruitment, search & selection, and outsourcing solutions |
1,883 | |||
| 17 |
Haworth Lifestylehaworthlifestyle.com
This company is a federation of brands focused on high-end furniture, emphasizing tradition, uniqueness, quality, and passion in a global market |
1,523 | |||
| 18 |
Siram Veoliaveolia.it
Provides integrated energy efficiency, water cycle management, and special waste services for public and private sectors to reduce emissions and resource waste. |
1,497 | |||
| 19 |
Mavriqmavriq.com
A global leader in price comparison connecting customers to providers, saving money with over 800 employees and 18 brands worldwide Partnered with Moltiply Group |
1,494 | |||
| 20 |
Class Editoriclasseditori.it
The company is a leading Italian editorial group specializing in financial, food, lifestyle, fashion & luxury information for a professional B2B audience They cover various multimedia editorial activities |
1,396 | |||
| 21 |
Alkemy Groupalkemy.com
Support digital transformation for businesses through consulting, data, AI, marketing, creativity, and technology from strategy to implementation. |
1,390 | |||
| 22 |
Unitinguniting.it
An collaborative ecosystem of 5 specialized units in marketing and communication, working together to create immersive brand experiences with a strong commitment to sustainability |
1,285 | |||
| 23 |
KOS GROUPkosgroup.com
A leading company in Italy's healthcare sector, specializing in nursing homes, rehabilitation, and diagnostic centers |
1,207 | |||
| 24 |
Pardgrouppardgroup.com
A multinational field marketing and retail services agency specializing in high-end projects for premium and luxury brands worldwide Services include design, production, and installation |
1,161 | |||
| 25 |
Riva Grouprivagroup.com
A leading group specializing in manufacturing long steel products using electric arc steelworks, focusing on sustainability, innovation, and quality |
1,137 | |||
| 26 |
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 | |||
| 27 |
Gruppo Orseroorserogroup.it
A leading distributor in Mediterranean Europe, sourcing and marketing over 800,000 tons of fresh produce annually with a sales revenue of 12 billion € |
1,036 | |||
| 28 | 1,020 | ||||
| 29 |
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 | |||
| 30 |
RGI Grouprgigroup.com
A leading European software vendor specializing in digital transformation for insurers, offering solutions to enhance operational efficiency, embrace digital innovation, and meet regulatory standards |
1,009 | |||
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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 Milan
- The largest companies in Milan 1,800
- Multinational companies in Milan 471
- Retail chains in Milan 240
- Financial services firms in Milan 216
- Financial Services companies in Milan 140
- Professional services firms in Milan 134
- Critical infrastructure operators in Milan 133
- IT services companies in Milan 126
- Companies with in-house R&D in Milan 124
- Software Development companies in Milan 119
- Luxury brands in Milan 111
- Retail Apparel and Fashion companies in Milan 109
- Consulting firms in Milan 104
- IT Services and IT Consulting companies in Milan 104
- Manufacturers in Milan 103
- SaaS companies in Milan 103
- Companies with a mobile app in Milan 98
- E-commerce companies in Milan 90
- Hotel and hospitality groups in Milan 81
- Insurance companies in Milan 72
- Subscription businesses in Milan 68
- Education providers in Milan 63
- Retail Luxury Goods and Jewelry companies in Milan 63
- Consumer goods companies in Milan 56
The same list elsewhere in Italy
- Corporate groups and holding companies in Italy 560
- Corporate groups and holding companies in Lombardy 224
- Corporate groups and holding companies in Emilia-Romagna 76
- Corporate groups and holding companies in Veneto 60
- Corporate groups and holding companies in Lazio 51
- Corporate groups and holding companies in Piedmont 32
- Corporate groups and holding companies in Rome 46