# List of corporate groups and holding companies in Milan

Tamtam tracks 98 corporate groups and holding companies headquartered in Milan. This list ranks the 30 largest by number of employees on LinkedIn, led by Saipem, Prysmian and TIM. Their median headcount is 2,073. Half of them were founded in 2001 or later.

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.

🇮🇹 Milan · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Saipem](https://www.tamtam.ai/c/saipem) (saipem.com)<br>Global leader in engineering and construction for energy and infrastructure projects worldwide, offering offshore and onshore services with a focus on sustainability and innovation | Engineering Services | 🇮🇹 Milan | 32,000 | 1957 |
| 2 | [Prysmian](https://www.tamtam.ai/c/prysmian) (prysmian.com)<br>A global leader in high-tech cables & systems for energy and telecom, driving the energy transition and digitalization worldwide | Manufacturing | 🇮🇹 Milan | 28,000 | 1872 |
| 3 | [TIM](https://www.tamtam.ai/c/tim) (gruppotim.it)<br>Provides fixed, mobile, and digital services including Cloud, IoT, and Cybersecurity, building and sharing network infrastructure in Italy and Brazil. | Telecommunications | 🇮🇹 Milan | 22,417 |  |
| 4 | [Gruppo San Donato](https://www.tamtam.ai/c/gruppo-san-donato) (grupposandonato.it)<br>Large European healthcare group integrating hospitals, research, universities, clinics, focusing on human-centered care and international expansion. | Hospitals and Health Care | 🇮🇹 Milan | 9,474 | 1957 |
| 5 | [A2A](https://www.tamtam.ai/c/a2a) (gruppoa2a.it)<br>A company in Italy focused on environment, water, and energy, promoting circular economy and sustainable development goals through various services and operations | Utilities | 🇮🇹 Milan | 5,026 | 2008 |
| 6 | [Edison](https://www.tamtam.ai/c/edison-milano) (edison.it)<br>Leading energy company with 140 years history, operating in renewable production, gas supply, sustainable mobility, and energy services across Europe. | Utilities | 🇮🇹 Milan | 4,174 | 1884 |
| 7 | [Lutech](https://www.tamtam.ai/c/lutech) (lutech.group)<br>A leading innovation company in Italy, Lutech Group offers end-to-end solutions for digital transformation, encompassing consulting, solutions, cybersecurity, services, and cloud technologies | IT Services and IT Consulting | 🇮🇹 Milan | 4,024 | 2001 |
| 8 | [Randstad Italia](https://www.tamtam.ai/c/randstad-italia) (randstad.it)<br>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 | Human Resources Services | 🇮🇹 Milan | 3,808 | 1999 |
| 9 | [Italgas](https://www.tamtam.ai/c/italgas) (italgas.it)<br>A leading Network Tech Company in gas, water, energy efficiency, and IT sectors, providing services to millions of customers in Italy and Greece | Utilities | 🇮🇹 Milan | 3,661 |  |
| 10 | [Il Sole 24 Ore](https://www.tamtam.ai/c/il-sole-24-ore) (ilsole24ore.com)<br>The leading multimedia editorial group in Italy for economic, financial, professional, and cultural information, with a strong market position in services and events | Book and Periodical Publishing | 🇮🇹 Milan | 3,407 |  |
| 11 | [Snam S.p.A.](https://www.tamtam.ai/c/snam-s-p-a) (snam.it)<br>Leading European company specializing in natural gas transport, storage, and regasification services across multiple infrastructures and markets. | Utilities | 🇮🇹 Milan | 3,337 | 1941 |
| 12 | [Azimut Italia](https://www.tamtam.ai/c/azimut-italia) (azimut.it)<br>Azimut is an independent Italian financial company focused on managed savings, offering a wide range of financial solutions and supporting businesses | Financial Services | 🇮🇹 Milan | 2,343 |  |
| 13 | [Salini Impregilo](https://www.tamtam.ai/c/salini-impregilo) (webuildgroup.com)<br>A global industrial Group specializing in sustainable infrastructure projects such as mobility, clean energy, water management, and green buildings worldwide | Construction | 🇮🇹 Milan | 2,279 | 2014 |
| 14 | [DentalPro](https://www.tamtam.ai/c/dentalpro) (dentalpro.it)<br>The largest Italian dental group with over 260 centers, 2000 employees, and 1200 dental professionals providing personalized care in modern, welcoming facilities | Hospitals and Health Care | 🇮🇹 Milan | 2,163 | 2010 |
| 15 | [Fedrigoni Group](https://www.tamtam.ai/c/fedrigoni-group) (fedrigoni.com)<br>Specializing in premium specialty papers for packaging, labels, printing, and more, with a focus on innovation, sustainability, and creativity worldwide | Paper and Forest Product Manufacturing | 🇮🇹 Milan | 2,073 | 1888 |
| 16 | [Gi Group Holding](https://www.tamtam.ai/c/gi-group-holding) (gigroupholding.com)<br>A global HR services company focused on creating value in the labor market through staffing, professional recruitment, search & selection, and outsourcing solutions | Human Resources Services | 🇮🇹 Milan | 1,883 | 1998 |
| 17 | [Haworth Lifestyle](https://www.tamtam.ai/c/haworth-lifestyle) (haworthlifestyle.com)<br>This company is a federation of brands focused on high-end furniture, emphasizing tradition, uniqueness, quality, and passion in a global market | Design Services | 🇮🇹 Milan | 1,523 |  |
| 18 | [Siram Veolia](https://www.tamtam.ai/c/siram-veolia) (veolia.it)<br>Provides integrated energy efficiency, water cycle management, and special waste services for public and private sectors to reduce emissions and resource waste. | Environmental Services | 🇮🇹 Milan | 1,497 |  |
| 19 | [Mavriq](https://www.tamtam.ai/c/mavriq) (mavriq.com)<br>A global leader in price comparison connecting customers to providers, saving money with over 800 employees and 18 brands worldwide Partnered with Moltiply Group | Technology, Information and Internet | 🇮🇹 Milan | 1,494 |  |
| 20 | [Class Editori](https://www.tamtam.ai/c/class-editori) (classeditori.it)<br>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 | Newspaper Publishing | 🇮🇹 Milan | 1,396 |  |
| 21 | [Alkemy Group](https://www.tamtam.ai/c/alkemy-group) (alkemy.com)<br>Support digital transformation for businesses through consulting, data, AI, marketing, creativity, and technology from strategy to implementation. | Business Consulting and Services | 🇮🇹 Milan | 1,390 | 2012 |
| 22 | [Uniting](https://www.tamtam.ai/c/uniting) (uniting.it)<br>An collaborative ecosystem of 5 specialized units in marketing and communication, working together to create immersive brand experiences with a strong commitment to sustainability | Advertising Services | 🇮🇹 Milan | 1,285 | 2019 |
| 23 | [KOS GROUP](https://www.tamtam.ai/c/kos-group) (kosgroup.com)<br>A leading company in Italy's healthcare sector, specializing in nursing homes, rehabilitation, and diagnostic centers | Hospitals and Health Care | 🇮🇹 Milan | 1,207 | 2002 |
| 24 | [Pardgroup](https://www.tamtam.ai/c/pardgroup) (pardgroup.com)<br>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 | Advertising Services | 🇮🇹 Milan | 1,161 | 2014 |
| 25 | [Riva Group](https://www.tamtam.ai/c/riva-group) (rivagroup.com)<br>A leading group specializing in manufacturing long steel products using electric arc steelworks, focusing on sustainability, innovation, and quality | Primary Metal Manufacturing | 🇮🇹 Milan | 1,137 |  |
| 26 | [IMQ S.p.A.](https://www.tamtam.ai/c/imq-s-p-a) (imq.it)<br>Conformity assessment company providing certification services, testing, inspections, and audits to ensure safety, quality, and performance in various industries | International Trade and Development | 🇮🇹 Milan | 1,075 | 1951 |
| 27 | [Gruppo Orsero](https://www.tamtam.ai/c/gruppo-orsero) (orserogroup.it)<br>A leading distributor in Mediterranean Europe, sourcing and marketing over 800,000 tons of fresh produce annually with a sales revenue of 12 billion € | Food and Beverage Manufacturing | 🇮🇹 Milan | 1,036 |  |
| 28 | [Saras](https://www.tamtam.ai/c/saras) (saras.it)<br>A leading independent energy operator in Europe, specializing in oil refining, electricity production, renewable energy, and innovative projects for carbon reduction and sustainability | Oil and Gas | 🇮🇹 Milan | 1,020 |  |
| 29 | [BV TECH](https://www.tamtam.ai/c/bv-tech) (bvtech.com)<br>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 | IT Services and IT Consulting | 🇮🇹 Milan | 1,017 | 2005 |
| 30 | [RGI Group](https://www.tamtam.ai/c/rgi-group) (rgigroup.com)<br>A leading European software vendor specializing in digital transformation for insurers, offering solutions to enhance operational efficiency, embrace digital innovation, and meet regulatory standards | Software Development | 🇮🇹 Milan | 1,009 |  |

## 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](https://www.tamtam.ai/l/largest-companies-milan) (1,800)
- [Multinational companies in Milan](https://www.tamtam.ai/l/multinational-companies-milan) (471)
- [Retail chains in Milan](https://www.tamtam.ai/l/retail-chains-milan) (240)
- [Financial services firms in Milan](https://www.tamtam.ai/l/financial-services-firms-milan) (216)
- [Financial Services companies in Milan](https://www.tamtam.ai/l/financial-services-companies-milan) (140)
- [Professional services firms in Milan](https://www.tamtam.ai/l/professional-services-firms-milan) (134)
- [Critical infrastructure operators in Milan](https://www.tamtam.ai/l/critical-infrastructure-operators-milan) (133)
- [IT services companies in Milan](https://www.tamtam.ai/l/it-services-companies-milan) (126)
- [Companies with in-house R&D in Milan](https://www.tamtam.ai/l/r-and-d-companies-milan) (124)
- [Software Development companies in Milan](https://www.tamtam.ai/l/software-development-companies-milan) (119)
- [Luxury brands in Milan](https://www.tamtam.ai/l/luxury-brands-milan) (111)
- [Retail Apparel and Fashion companies in Milan](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-milan) (109)
- [Consulting firms in Milan](https://www.tamtam.ai/l/consulting-firms-milan) (104)
- [IT Services and IT Consulting companies in Milan](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-milan) (104)
- [Manufacturers in Milan](https://www.tamtam.ai/l/manufacturers-milan) (103)
- [SaaS companies in Milan](https://www.tamtam.ai/l/saas-companies-milan) (103)
- [Companies with a mobile app in Milan](https://www.tamtam.ai/l/companies-with-mobile-app-milan) (98)
- [E-commerce companies in Milan](https://www.tamtam.ai/l/ecommerce-companies-milan) (90)
- [Hotel and hospitality groups in Milan](https://www.tamtam.ai/l/hospitality-groups-milan) (81)
- [Insurance companies in Milan](https://www.tamtam.ai/l/insurance-companies-milan) (72)
- [Subscription businesses in Milan](https://www.tamtam.ai/l/subscription-businesses-milan) (68)
- [Education providers in Milan](https://www.tamtam.ai/l/education-companies-milan) (63)
- [Retail Luxury Goods and Jewelry companies in Milan](https://www.tamtam.ai/l/retail-luxury-goods-and-jewelry-companies-milan) (63)
- [Consumer goods companies in Milan](https://www.tamtam.ai/l/consumer-goods-companies-milan) (56)

## The same list elsewhere in Italy

- [Corporate groups and holding companies in Italy](https://www.tamtam.ai/l/holding-companies-italy) (560)
- [Corporate groups and holding companies in Lombardy](https://www.tamtam.ai/l/holding-companies-lombardy) (224)
- [Corporate groups and holding companies in Emilia-Romagna](https://www.tamtam.ai/l/holding-companies-emilia-romagna) (76)
- [Corporate groups and holding companies in Veneto](https://www.tamtam.ai/l/holding-companies-veneto) (60)
- [Corporate groups and holding companies in Lazio](https://www.tamtam.ai/l/holding-companies-lazio) (51)
- [Corporate groups and holding companies in Piedmont](https://www.tamtam.ai/l/holding-companies-piedmont) (32)
- [Corporate groups and holding companies in Rome](https://www.tamtam.ai/l/holding-companies-rome) (46)

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Source: https://www.tamtam.ai/l/holding-companies-milan