The companies listed here are large, established firms with significant employee numbers, predominantly headquartered in Milano. They represent a mix of industries, including manufacturing, luxury goods, engineering, and healthcare. Many of these companies have a global presence and a long history.
Notable examples include Saipem, a global leader in engineering and construction for energy and infrastructure projects, and Prysmian, specializing in high-tech cables and systems. Luxottica designs and distributes fashion eyewear globally, while Pirelli is a leading tyre producer. Mapei manufactures chemical products for the building industry, and Gruppo San Donato is a large European healthcare group. The data shows a strong presence of companies founded in the late 19th and early 20th centuries, indicating a long-standing industrial tradition in Milano.
| # | 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 |
Luxotticaessilorluxottica.com
Luxottica designs, manufactures, and distributes fashion eyewear globally, with a focus on sustainability, universal beauty, and well-being |
18,182 | |||
| 4 |
Pirellipirelli.com
A global leader in tyre production with a strong focus on technological innovation, high-end quality, and Italian heritage, catering to consumer markets worldwide |
15,159 | |||
| 5 |
Prada Grouppradagroup.com
A luxury fashion group with diverse brands focusing on creative independence, sustainability, and global distribution of ready-to-wear, leather goods, and footwear |
12,267 | |||
| 6 |
Politecnico di Milanopolimi.it
A scientific-technological university focusing on high-quality teaching, research, and collaboration with businesses worldwide to drive innovation and internationalization |
10,413 | |||
| 7 |
Gruppo San Donatogrupposandonato.it
Large European healthcare group integrating hospitals, research, universities, clinics, focusing on human-centered care and international expansion. |
9,474 | |||
| 8 | 7,645 | ||||
| 9 |
Accenture Italiaaccenture.com
Global professional services firm specializing in digital, cloud, security, strategy, consulting, technology, and operations across multiple industries worldwide. |
7,209 | |||
| 10 |
DOLCE&GABBANAdolcegabbana.com
Luxury fashion brand specializing in clothing, accessories, jewelry, and watches inspired by Italian art, tradition, and craftsmanship. |
6,846 | |||
| 11 |
Dedalusdedalus.com
This company is a leading healthcare and diagnostic software provider in Europe, facilitating digital transformation for healthcare systems worldwide |
6,177 | |||
| 12 |
Ospedale San Raffaelehsr.it
A high-specialization center within Gruppo San Donato focusing on medical, scientific research, and university education to deliver excellence in healthcare |
4,965 | |||
| 13 |
Recordatirecordati.com
Global pharmaceutical company developing and commercializing medicines for common and rare diseases, dedicated to improving health and unlocking the full potential of life |
4,331 | |||
| 14 | 4,174 | ||||
| 15 |
MAIREgroupmaire.com
A technology and engineering group focused on enabling the Energy Transition, offering Sustainable Technology and E&C Solutions in various sectors worldwide |
3,897 | |||
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 |
Valentinovalentino.com
A luxury fashion house founded in 1960, known for Haute Couture and ready-to-wear lines for women and men, as well as accessories and fragrances |
3,864 | |||
| 17 |
Monclermonclergroup.com
A fashion brand founded in France in 1952, now based in Italy, known for combining style with mountain-inspired technology in outdoor and urban wear collections |
3,838 | |||
| 18 |
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 | |||
| 19 |
PROMETEON TYRE GROUPprometeon.com
A tire manufacturer with a focus on industry, transport, AGRO, and OTR applications, offering innovative solutions and embracing diversity |
3,236 | |||
| 20 |
Boltonbolton.com
A family-owned multinational producing and distributing over 60 quality brands, committed to making everyday life more enjoyable, beautiful, and delicious, while driving positive change |
2,786 | |||
| 21 |
Sogefi Groupsogefigroup.com
A global leader in engine filtration and vehicle suspension components, committed to innovation, research, quality, and environmental sustainability |
2,734 | |||
| 22 |
EPTA GROUPeptarefrigeration.com
Specializes in commercial refrigeration systems and turnkey projects for retail, Ho.Re.Ca, and food sectors with global presence. |
1,943 | |||
| 23 |
Braccobracco.com
A leader in healthcare and diagnostic imaging, specializing in contrast agents, medical devices, and innovative solutions across international markets |
1,899 | |||
| 24 |
Olonolonspa.com
Global leader in developing and producing active pharmaceutical ingredients for CDMO and generics, offering chemical synthesis and biological processing services with extensive expertise and reliability |
1,709 | |||
| 25 |
Impresoft Groupimpresoftgroup.com
A group of innovative and leading companies in various industries, offering tailored digital solutions for businesses through agile and scalable approaches |
1,588 | |||
| 26 |
Acciaierie d'Italia S.p.A. in A.S.acciaierieditalia.com
An Italian steel company producing sustainable, high-quality steel for various industries in the domestic market and worldwide export |
1,506 | |||
| 27 |
Libera Universit脿 Vita-Salute San Raffaeleunisr.it
The company is a university focusing on teaching, research, and clinical activities, with a mission centered on understanding and training professionals in human biology, psychology, and spirituality |
1,485 | |||
| 28 | 1,423 | ||||
| 29 |
TAStasgroup.eu
Specializing in digital payments, cards, and financial markets, TAS provides secure software solutions worldwide, simplifying business processes and revolutionizing commercial transactions |
1,277 | |||
| 30 |
De Noradenora.com
A multinational company specializing in electrochemistry and sustainable technologies, leading in industrial green hydrogen production, water treatment, and energy efficiency optimization |
1,267 | |||
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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
- 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
- Corporate groups and holding companies 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
- Companies with in-house R&D in Italy 1,418
- Companies with in-house R&D in Lombardy 432
- Companies with in-house R&D in Emilia-Romagna 195
- Companies with in-house R&D in Veneto 182
- Companies with in-house R&D in Lazio 120
- Companies with in-house R&D in Piedmont 102
- Companies with in-house R&D in Tuscany 80
- Companies with in-house R&D in Campania 44
- Companies with in-house R&D in Friuli-Venezia Giulia 43
- Companies with in-house R&D in the Marche 34
- Companies with in-house R&D in Apulia 26
- Companies with in-house R&D in Trentino-South Tyrol 25
- Companies with in-house R&D in Rome 82
- Companies with in-house R&D in Turin 31