# The 50 largest corporate groups and holding companies in Lombardy

Tamtam tracks 224 corporate groups and holding companies headquartered in Lombardy. This list ranks the 50 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 1988 or later. The most common headquarters are Milan (29) and Monza (2).

This selection of large corporate groups and holding companies in Lombardy includes prominent names in infrastructure, manufacturing, and utilities. Saipem specializes in engineering and construction for energy projects, while Prysmian is a global leader in high-tech cables. TIM provides telecommunications services, and Gruppo San Donato operates a large European healthcare network. Webuild focuses on complex construction projects, and Brembo is known for automotive brake technology. A significant number of these large companies are headquartered in Milan, including Saipem, Prysmian, TIM, Gruppo San Donato, A2A, Edison, Lutech, Randstad Italia, Italgas, and Il Sole 24 Ore. This concentration of headquarters in the regional capital indicates Milan's role as a key business hub for major corporations in Lombardy across diverse sectors.

🇮🇹 Lombardy · 50 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 | [Webuild](https://www.tamtam.ai/c/webuild) (webuildgroup.com)<br>A global leader in designing and constructing large, complex projects in sustainable mobility, hydropower, water infrastructure, and green buildings worldwide | Construction | 🇮🇹 Rozzano (MI) | 7,514 |  |
| 6 | [Brembo](https://www.tamtam.ai/c/brembo) (brembo.com)<br>Global leader in brake technology for automotive vehicles, supplying high performance systems to manufacturers worldwide, with expertise in racing components and over 500 championships won | Motor Vehicle Manufacturing | 🇮🇹 | 7,408 |  |
| 7 | [Mediaset](https://www.tamtam.ai/c/mediaset) (lavoraconnoi.mediaset.it)<br>The company offers free advertising-supported TV, pay TV, entertainment, fiction & cinema, news, web, and other related activities to viewers | Broadcast Media Production and Distribution | 🇮🇹 Cologno Monzese | 5,680 |  |
| 8 | [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 |
| 9 | [MFE - MediaForEurope](https://www.tamtam.ai/c/mfe-mediaforeurope) (mfemediaforeurope.com)<br>An international holding company focused on aggregating top European commercial broadcasters to strengthen the competitive position of European free-to-air television globally | Broadcast Media Production and Distribution | 🇮🇹 Cologno Monzese | 4,577 |  |
| 10 | [Zucchetti](https://www.tamtam.ai/c/zucchetti) (zucchetti.it)<br>Leading European software publisher offering POS, ERP, and HR solutions with a billion euro turnover, 8,000 employees, and 2,000 partners worldwide | IT Services and IT Consulting | 🇮🇹 Lodi | 4,184 |  |
| 11 | [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 |
| 12 | [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 |
| 13 | [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 |
| 14 | [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 |  |
| 15 | [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 |  |
| 16 | [TESYA Group](https://www.tamtam.ai/c/tesya-group) (tesya.com)<br>The TESYA Group offers cutting-edge integrated solutions through collaboration between top brands, providing advanced customized solutions in various industries internationally | Machinery Manufacturing | 🇮🇹 Vimodrone | 3,402 |  |
| 17 | [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 |
| 18 | [Gruppo Tempocasa](https://www.tamtam.ai/c/gruppo-tempocasa) (tempocasa.it)<br>A leading real estate franchise in Italy and Europe, focusing on professionalism, expertise, and continuous improvement, with over 600 agencies nationwide | Real Estate | 🇮🇹 Bresso | 2,950 | 1988 |
| 19 | [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 |  |
| 20 | [Artsana Group](https://www.tamtam.ai/c/artsana-group) (artsana.com)<br>A global leader in the parenting space, offering a wide range of brands focused on family, society, and the environment through innovative solutions and products | Manufacturing | 🇮🇹 Grandate | 2,332 | 1946 |
| 21 | [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 |
| 22 | [SOL Group](https://www.tamtam.ai/c/sol-group) (solgroup.com)<br>Italian multinational company specializing in production, research, and sale of gases, home care services, biotech products, and renewable energy, listed on Milan Stock Exchange | Chemical Manufacturing | 🇮🇹 Monza | 2,188 | 1927 |
| 23 | [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 |
| 24 | [Cisalfa Group](https://www.tamtam.ai/c/cisalfa-group) (cisalfagroup.com)<br>Leading Italian group specializing in sports-fashion and leisure apparel, footwear, and equipment, with a global presence encompassing over 210 stores and 4,000 employees | Retail | 🇮🇹 Curno | 2,147 |  |
| 25 | [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 |
| 26 | [Bticino](https://www.tamtam.ai/c/bticino) (bticino.it)<br>Manufacturer of low-voltage electrical equipment for residential, commercial and industrial sectors, including energy distribution, communication, lighting, sound, climate control and safety systems. | Appliances, Electrical, and Electronics Manufacturing | 🇮🇹 Varese | 2,047 | 1948 |
| 27 | [Cerved](https://www.tamtam.ai/c/cerved) (cerved.com)<br>This company specializes in providing data-driven solutions, including credit risk analysis, marketing services, NPL management, and credit rating agency services across Italy | Information Services | 🇮🇹 San Donato Milanese | 2,023 |  |
| 28 | [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 |
| 29 | [Polynt Group](https://www.tamtam.ai/c/polynt-group) (polynt.com)<br>A global chemical company specializing in the production, sales, and development of organic anhydrides, composites, coating resins, and other specialty chemicals | Chemical Manufacturing | 🇮🇹 Scanzorosciate | 1,693 | 1955 |
| 30 | [Esprinet Italia](https://www.tamtam.ai/c/esprinet-italia) (esprinet.com)<br>A European tech company specializing in advisory, cybersecurity, and tech products, fostering social and environmental sustainability through digitalization and tech democracy | IT Services and IT Consulting | 🇮🇹 Vimercate | 1,689 | 1999 |
| 31 | [The SIAD Group](https://www.tamtam.ai/c/the-siad-group) (thesiadgroup.com)<br>A leading Italian chemical group offering industrial gases, engineering services, healthcare facilities, LPG and natural gas distribution, environmental management, and energy solutions | Chemical Manufacturing | 🇮🇹 Bergamo | 1,559 | 1927 |
| 32 | [FONTANA GRUPPO](https://www.tamtam.ai/c/fontana-gruppo) (gruppofontana.it)<br>A global leader in the fasteners sector, offering high-quality standard and specialized products to key international industries worldwide | Motor Vehicle Manufacturing | 🇮🇹 Veduggio con Colzano | 1,551 |  |
| 33 | [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 |  |
| 34 | [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 |  |
| 35 | [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 |  |
| 36 | [Marcegaglia](https://www.tamtam.ai/c/marcegaglia) (marcegaglia.com)<br>A leading Italian industrial group with activities across the entire steel value chain, spanning production, processing, and international operations | Mining | 🇮🇹 Gazoldo degli Ippoliti | 1,490 | 1959 |
| 37 | [Technoprobe](https://www.tamtam.ai/c/technoprobe) (technoprobe.com)<br>A global leader in semiconductor testing, specializing in design, development, and manufacture of probe cards for chip functionality testing | Semiconductor Manufacturing | 🇮🇹 Cernusco Lombardone | 1,412 | 1996 |
| 38 | [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 |  |
| 39 | [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 |
| 40 | [Sapio Group](https://www.tamtam.ai/c/sapio-group) (grupposapio.it)<br>Industrial and medical gases, high-tech systems for cutting, welding, refrigerating gases, and pipeline design, plus hospital and home health services. | Chemical Manufacturing | 🇮🇹 Monza | 1,349 | 1922 |
| 41 | [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 |
| 42 | [Sodalis Group](https://www.tamtam.ai/c/sodalis-group) (sodalisgroup.com)<br>Development and distribution of health, beauty, personal and home care products through multiple brands, research labs, and international channels. | Personal Care Product Manufacturing | 🇮🇹 Lodi Vecchio | 1,245 | 1990 |
| 43 | [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 |
| 44 | [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 |
| 45 | [Gruppo AB - Energy Sustainability](https://www.tamtam.ai/c/gruppo-ab-energy-sustainability) (gruppoab.com)<br>AB specializes in energy sustainability solutions, offering innovative technologies and processes to help customers save energy, reduce emissions, and improve competitiveness globally | Oil and Gas | 🇮🇹 Orzinuovi | 1,154 | 1981 |
| 46 | [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 |  |
| 47 | [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 |
| 48 | [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 |  |
| 49 | [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 |  |
| 50 | [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 |

## 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 Lombardy

- [The largest companies in Lombardy](https://www.tamtam.ai/l/largest-companies-lombardy) (3,376)
- [Multinational companies in Lombardy](https://www.tamtam.ai/l/multinational-companies-lombardy) (889)
- [Manufacturers in Lombardy](https://www.tamtam.ai/l/manufacturers-lombardy) (512)
- [Companies with in-house R&D in Lombardy](https://www.tamtam.ai/l/r-and-d-companies-lombardy) (432)
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- [Financial services firms in Lombardy](https://www.tamtam.ai/l/financial-services-firms-lombardy) (262)
- [Hardware manufacturers in Lombardy](https://www.tamtam.ai/l/hardware-companies-lombardy) (216)
- [Critical infrastructure operators in Lombardy](https://www.tamtam.ai/l/critical-infrastructure-operators-lombardy) (205)
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- [Professional services firms in Lombardy](https://www.tamtam.ai/l/professional-services-firms-lombardy) (162)
- [Luxury brands in Lombardy](https://www.tamtam.ai/l/luxury-brands-lombardy) (158)
- [IT Services and IT Consulting companies in Lombardy](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-lombardy) (155)
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- [Companies with a mobile app in Lombardy](https://www.tamtam.ai/l/companies-with-mobile-app-lombardy) (137)
- [Personal Care Product Manufacturing companies in Lombardy](https://www.tamtam.ai/l/personal-care-product-manufacturing-companies-lombardy) (137)
- [Transportation, Logistics, Supply Chain and Storage companies in Lombardy](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-lombardy) (135)
- [Consulting firms in Lombardy](https://www.tamtam.ai/l/consulting-firms-lombardy) (134)
- [SaaS companies in Lombardy](https://www.tamtam.ai/l/saas-companies-lombardy) (125)
- [Food and Beverage Manufacturing companies in Lombardy](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-lombardy) (124)

## 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 Emilia-Romagna](https://www.tamtam.ai/l/holding-companies-emilia-romagna) (76)
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- [Corporate groups and holding companies in Milan](https://www.tamtam.ai/l/holding-companies-milan) (98)
- [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-lombardy