# The 100 largest companies with in-house R&D in Lombardy

Tamtam tracks 432 companies with in-house R&D headquartered in Lombardy. This list ranks the 100 largest by number of employees on LinkedIn, led by Saipem, Prysmian and Luxottica. Their median headcount is 1,400. Half of them were founded in 1962 or later. The most common headquarters are Milan (40), Bergamo (3) and Brescia (2).

These Lombardy companies with in-house R&D are primarily large, established firms. They span diverse sectors, including manufacturing, luxury goods, and IT services. Companies like Pirelli, founded in 1872, specialize in high-tech cables and systems, while Luxottica focuses on eyewear. Saipem is a global leader in engineering for energy projects, and Dedalus provides healthcare and diagnostic software.

The data shows a strong concentration of headquarters in Milano, indicating a central hub for these large corporations. Many of these companies, such as Prysmian and Pirelli, were founded in the late 19th or early 20th century, suggesting a long history of industrial development in the region.

🇮🇹 Lombardy · 100 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 | [Luxottica](https://www.tamtam.ai/c/luxottica) (essilorluxottica.com)<br>Luxottica designs, manufactures, and distributes fashion eyewear globally, with a focus on sustainability, universal beauty, and well-being | Retail Luxury Goods and Jewelry | 🇮🇹 Milan | 18,182 |  |
| 4 | [Pirelli](https://www.tamtam.ai/c/pirelli) (pirelli.com)<br>A global leader in tyre production with a strong focus on technological innovation, high-end quality, and Italian heritage, catering to consumer markets worldwide | Motor Vehicle Manufacturing | 🇮🇹 Milan | 15,159 | 1872 |
| 5 | [Prada Group](https://www.tamtam.ai/c/prada-group) (pradagroup.com)<br>A luxury fashion group with diverse brands focusing on creative independence, sustainability, and global distribution of ready-to-wear, leather goods, and footwear | Retail Luxury Goods and Jewelry | 🇮🇹 Milan | 12,267 |  |
| 6 | [Politecnico di Milano](https://www.tamtam.ai/c/politecnico-di-milano) (polimi.it)<br>A scientific-technological university focusing on high-quality teaching, research, and collaboration with businesses worldwide to drive innovation and internationalization | Research Services | 🇮🇹 Milan | 10,413 |  |
| 7 | [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 |
| 8 | [Mapei](https://www.tamtam.ai/c/mapei) (mapei.com)<br>A leading manufacturer of chemical products for the building industry, contributing to global architectural and infrastructural projects with a focus on specialization, internationalization, R&D, and sustainability | Chemical Manufacturing | 🇮🇹 Milan | 7,645 | 1937 |
| 9 | [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 |  |
| 10 | [Accenture Italia](https://www.tamtam.ai/c/accenture-italia) (accenture.com)<br>Global professional services firm specializing in digital, cloud, security, strategy, consulting, technology, and operations across multiple industries worldwide. | IT Services and IT Consulting | 🇮🇹 Milan | 7,209 |  |
| 11 | [DOLCE&GABBANA](https://www.tamtam.ai/c/dolce-and-gabbana) (dolcegabbana.com)<br>Luxury fashion brand specializing in clothing, accessories, jewelry, and watches inspired by Italian art, tradition, and craftsmanship. | Retail Luxury Goods and Jewelry | 🇮🇹 Milan | 6,846 | 1985 |
| 12 | [Dedalus](https://www.tamtam.ai/c/dedalus) (dedalus.com)<br>This company is a leading healthcare and diagnostic software provider in Europe, facilitating digital transformation for healthcare systems worldwide | IT Services and IT Consulting | 🇮🇹 Milan | 6,177 | 1982 |
| 13 | [Ospedale San Raffaele](https://www.tamtam.ai/c/ospedale-san-raffaele) (hsr.it)<br>A high-specialization center within Gruppo San Donato focusing on medical, scientific research, and university education to deliver excellence in healthcare | Hospitals and Health Care | 🇮🇹 Milan | 4,965 | 1971 |
| 14 | [Recordati](https://www.tamtam.ai/c/recordati) (recordati.com)<br>Global pharmaceutical company developing and commercializing medicines for common and rare diseases, dedicated to improving health and unlocking the full potential of life | Pharmaceutical Manufacturing | 🇮🇹 Milan | 4,331 | 1926 |
| 15 | [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 |  |
| 16 | [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 |
| 17 | [MEI](https://www.tamtam.ai/c/mei) (meisystem.com)<br>Leading global manufacturer specializing in Italian-made dry cut lens edging machines for optical shops and industrial labs with comprehensive technical support services. | Machinery Manufacturing | 🇮🇹 Ponte San Pietro | 3,902 | 1985 |
| 18 | [MAIRE](https://www.tamtam.ai/c/maire) (groupmaire.com)<br>A technology and engineering group focused on enabling the Energy Transition, offering Sustainable Technology and E&C Solutions in various sectors worldwide | Engineering Services | 🇮🇹 Milan | 3,897 | 2005 |
| 19 | [Valentino](https://www.tamtam.ai/c/valentino) (valentino.com)<br>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 | Retail Luxury Goods and Jewelry | 🇮🇹 Milan | 3,864 |  |
| 20 | [Moncler](https://www.tamtam.ai/c/moncler) (monclergroup.com)<br>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 | Retail Luxury Goods and Jewelry | 🇮🇹 Milan | 3,838 | 1952 |
| 21 | [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 |  |
| 22 | [Humanitas Research Hospital](https://www.tamtam.ai/c/humanitas-research-hospital) (humanitas.it)<br>Highly specialized hospital with pathology-specific centers, advanced emergency care, innovative outpatient services, and internationally recognized research in immune-related diseases. | Hospitals and Health Care | 🇮🇹 Rozzano | 3,329 | 1996 |
| 23 | [PROMETEON TYRE GROUP](https://www.tamtam.ai/c/prometeon-tyre-group) (prometeon.com)<br>A tire manufacturer with a focus on industry, transport, AGRO, and OTR applications, offering innovative solutions and embracing diversity | Motor Vehicle Manufacturing | 🇮🇹 Milan | 3,236 | 2017 |
| 24 | [Bolton](https://www.tamtam.ai/c/bolton) (bolton.com)<br>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 | Manufacturing | 🇮🇹 Milan | 2,786 | 1949 |
| 25 | [Sogefi Group](https://www.tamtam.ai/c/sogefi-group) (sogefigroup.com)<br>A global leader in engine filtration and vehicle suspension components, committed to innovation, research, quality, and environmental sustainability | Motor Vehicle Parts Manufacturing | 🇮🇹 Milan | 2,734 | 1980 |
| 26 | [TXT GROUP](https://www.tamtam.ai/c/txt-group) (txtgroup.com)<br>An international engineering software solutions provider supporting high-tech markets throughout product life-cycles, with over 1000 skilled team members worldwide | IT Services and IT Consulting | 🇮🇹 Cologno Monzese | 2,625 |  |
| 27 | [Haier Europe](https://www.tamtam.ai/c/haier-europe) (corporate.haier-europe.com)<br>Global leader in home appliances, part of a Fortune Global 500 company, focusing on IoT for smart home solutions with successful brands worldwide | Manufacturing | 🇮🇹 Vimercate | 2,603 |  |
| 28 | [Zambon](https://www.tamtam.ai/c/zambon) (zambon.com)<br>Develops innovative pharmaceutical and healthcare solutions, including treatments for respiratory, urological, and serious diseases like Parkinson's, and offers patient support programs. | Pharmaceutical Manufacturing | 🇮🇹 Bresso | 2,595 | 1906 |
| 29 | [SDF](https://www.tamtam.ai/c/sdf) (sdfgroup.com)<br>A leading manufacturer of tractors, agricultural machines, and diesel engines, focused on satisfying customer needs through advanced technology and global expansion | Machinery Manufacturing | 🇮🇹 Treviglio | 2,574 | 1927 |
| 30 | [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 |
| 31 | [Tenova](https://www.tamtam.ai/c/tenova) (tenova.com)<br>A sustainable, innovative, and reliable partner in metals and mining industries, designing technologies to reduce costs, save energy, and improve working conditions | Industrial Machinery Manufacturing | 🇮🇹 Castellanza | 2,258 | 2007 |
| 32 | [Università degli Studi eCampus](https://www.tamtam.ai/c/universita-degli-studi-ecampus) (uniecampus.it)<br>A telematic university established in 2006 offering a campus with various facilities for students, professors, and guests for exams and extracurricular activities | Higher Education | 🇮🇹 Novedrate | 2,191 | 2006 |
| 33 | [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 |
| 34 | [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 |
| 35 | [Fondazione I.R.C.C.S. Policlinico San Matteo Pavia](https://www.tamtam.ai/c/fondazione-i-r-c-c-s-policlinico-san-matteo-pavia) (sanmatteo.org)<br>The Foundation is a leading scientific research and medical care institute in Europe, conducting clinical trials and providing healthcare services since 1400 | Hospitals and Health Care | 🇮🇹 Pavia | 1,982 |  |
| 36 | [EPTA GROUP](https://www.tamtam.ai/c/epta-group) (eptarefrigeration.com)<br>Specializes in commercial refrigeration systems and turnkey projects for retail, Ho.Re.Ca, and food sectors with global presence. | Machinery Manufacturing | 🇮🇹 Milan | 1,943 |  |
| 37 | [Bracco](https://www.tamtam.ai/c/bracco) (bracco.com)<br>A leader in healthcare and diagnostic imaging, specializing in contrast agents, medical devices, and innovative solutions across international markets | Pharmaceutical Manufacturing | 🇮🇹 Milan | 1,899 | 1927 |
| 38 | [Olon](https://www.tamtam.ai/c/olon) (olonspa.com)<br>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 | Chemical Manufacturing | 🇮🇹 Milan | 1,709 | 2003 |
| 39 | [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 |
| 40 | [Nidec Conversion](https://www.tamtam.ai/c/nidec-conversion) (nidec-conversion.com)<br>A company specializing in power control and system solutions, offering tailored electric drive systems for various industries worldwide Headquarters in Milan, Italy | Electrical Equipment Manufacturing | 🇮🇹 Cinisello Balsamo | 1,606 | 1899 |
| 41 | [Impresoft Group](https://www.tamtam.ai/c/impresoft-group) (impresoftgroup.com)<br>A group of innovative and leading companies in various industries, offering tailored digital solutions for businesses through agile and scalable approaches | Software Development | 🇮🇹 Milan | 1,588 |  |
| 42 | [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 |
| 43 | [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 |  |
| 44 | [Eldor Corporation](https://www.tamtam.ai/c/eldor-corporation) (eldorgroup.com)<br>Designs and produces ignition systems, electronic control units, and components for hybrid, electric vehicles, and urban e-mobility solutions worldwide. | Motor Vehicle Manufacturing | 🇮🇹 Orsenigo | 1,530 | 1972 |
| 45 | [Acciaierie d'Italia S.p.A. in A.S.](https://www.tamtam.ai/c/acciaierie-d-italia-s-p-a-in-a-s) (acciaierieditalia.com)<br>An Italian steel company producing sustainable, high-quality steel for various industries in the domestic market and worldwide export | Mining | 🇮🇹 Milan | 1,506 | 2018 |
| 46 | [Libera Università Vita-Salute San Raffaele](https://www.tamtam.ai/c/libera-universita-vita-salute-san-raffaele) (unisr.it)<br>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 | Higher Education | 🇮🇹 Milan | 1,485 | 1996 |
| 47 | [ASST Papa Giovanni XXIII](https://www.tamtam.ai/c/asst-papa-giovanni-xxiii) (asst-pg23.it)<br>The healthcare organization provides specialized care, multidisciplinary teams, and a range of services to support patients and families throughout diagnosis, treatment, and recovery | Hospitals and Health Care | 🇮🇹 Bergamo | 1,474 | 1930 |
| 48 | [CESI SpA](https://www.tamtam.ai/c/cesi-spa) (cesi.it)<br>A global technical consulting company specializing in energy sectors such as transmission, renewables, testing, and environmental impact assessments for various clients worldwide | Engineering Services | 🇮🇹 Milan | 1,423 | 1956 |
| 49 | [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 |
| 50 | [Hilti Italia](https://www.tamtam.ai/c/hilti-italia) (hilti.it)<br>Global leader in providing technology-leading products, systems, and services to the construction industry worldwide, with a focus on innovation, customer excellence, and employee development | Construction | 🇮🇹 Sesto San Giovanni | 1,400 | 1952 |
| 51 | [Gewiss](https://www.tamtam.ai/c/gewiss) (gewiss.com)<br>Manufacturer of home & building automation solutions, energy distribution systems, smart lighting, and e-mobility products Recently acquired a leading lighting company Operating globally | Appliances, Electrical, and Electronics Manufacturing | 🇮🇹 Cenate Sotto | 1,324 | 1970 |
| 52 | [Maugeri](https://www.tamtam.ai/c/maugeri) (icsmaugeri.it)<br>A network of 18 hospitals across six regions in Italy, including 9 research hospitals, providing medical services and research | Hospitals and Health Care | 🇮🇹 Pavia | 1,298 | 1965 |
| 53 | [TAS](https://www.tamtam.ai/c/tas) (tasgroup.eu)<br>Specializing in digital payments, cards, and financial markets, TAS provides secure software solutions worldwide, simplifying business processes and revolutionizing commercial transactions | IT Services and IT Consulting | 🇮🇹 Milan | 1,277 |  |
| 54 | [De Nora](https://www.tamtam.ai/c/de-nora) (denora.com)<br>A multinational company specializing in electrochemistry and sustainable technologies, leading in industrial green hydrogen production, water treatment, and energy efficiency optimization | Industrial Machinery Manufacturing | 🇮🇹 Milan | 1,267 | 1923 |
| 55 | [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 |
| 56 | [FIMER](https://www.tamtam.ai/c/fimer-s-p-a) (fimer.com)<br>Manufacturer of solar inverters, providing renewable energy solutions for diverse applications, with production sites in Italy and India and local training centers. | Machinery Manufacturing | 🇮🇹 Vimercate | 1,270 | 1942 |
| 57 | [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 |
| 58 | [MTA S.p.A.](https://www.tamtam.ai/c/mta-s-p-a) (mta.it)<br>A global leader in manufacturing electrical and electronic components for vehicles, including control units, human machine interface systems, and power electronics | Appliances, Electrical, and Electronics Manufacturing | 🇮🇹 Codogno | 1,154 | 1954 |
| 59 | [Spindox](https://www.tamtam.ai/c/spindox) (spindox.it)<br>ICT company offering consultancy, system integration, software development, interaction design, and network engineering services to global clients across various industries | IT Services and IT Consulting | 🇮🇹 Milan | 1,147 | 2007 |
| 60 | [Dompé](https://www.tamtam.ai/c/dompe) (dompe.com)<br>An international biopharmaceutical company specializing in research, development, production, and marketing of treatments for rare diseases and primary care needs | Pharmaceutical Manufacturing | 🇮🇹 Milan | 1,146 |  |
| 61 | [Lamberti](https://www.tamtam.ai/c/lamberti) (lamberti.com)<br>Specialty chemicals B2B company developing and industrializing chemicals for various industries, with a focus on research and innovation in multiple geographical areas | Chemical Manufacturing | 🇮🇹 Gallarate | 1,119 | 1911 |
| 62 | [ASSOCIAZIONE LA NOSTRA FAMIGLIA](https://www.tamtam.ai/c/associazione-la-nostra-famiglia) (lanostrafamiglia.it)<br>A non-profit organization providing care and rehabilitation for people with disabilities, focusing on children, young adults, scientific research, training, and social inclusion | Hospitals and Health Care | 🇮🇹 Ponte Lambro | 1,109 | 1946 |
| 63 | [Gruppo MultiMedica](https://www.tamtam.ai/c/gruppo-multimedica) (multimedica.it)<br>A leading healthcare provider in Italy, offering specialized treatments, research, and university training to enhance patient care and well-being | Hospitals and Health Care | 🇮🇹 Sesto San Giovanni | 1,106 | 1986 |
| 64 | [ACS DOBFAR](https://www.tamtam.ai/c/acs-dobfar) (acsdobfar.it)<br>A leading Italian manufacturer of APIs and Finished Dosage Formulations, exporting products to over 100 countries with a focus on quality, innovation, and sustainability | Pharmaceutical Manufacturing | 🇮🇹 Tribiano (MI) | 1,055 | 1973 |
| 65 | [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 |
| 66 | [Italcementi](https://www.tamtam.ai/c/italcementi) (heidelbergmaterials.it)<br>Production of cement and concrete products with a focus on sustainability, innovation, and extensive industrial infrastructure in Italy. | Wholesale Building Materials | 🇮🇹 Bergamo | 1,015 | 1864 |
| 67 | [Fondazione Poliambulanza Istituto Ospedaliero Multispecialistico](https://www.tamtam.ai/c/fondazione-poliambulanza-istituto-ospedaliero-multispecialistico) (poliambulanza.it)<br>A non-profit private hospital in Lombardia region with over 600 beds, 2000 employees, and top-quality medical services, including emergency care, oncology, cardiology, and orthopedics | Hospitals and Health Care | 🇮🇹 Brescia | 983 |  |
| 68 | [STMicroelectronics Italia](https://www.tamtam.ai/c/stmicroelectronics-italia) (st.com)<br>A leading semiconductor company in Italy, part of a global group, focusing on innovative technologies for automotive and IoT applications worldwide | Appliances, Electrical, and Electronics Manufacturing | 🇮🇹 Agrate Brianza | 978 | 1987 |
| 69 | [EGLA - EuroGroup Laminations](https://www.tamtam.ai/c/egla-eurogroup-laminations) (eglagroup.com)<br>A global leader in producing stators and rotors for various industries, providing efficient and sustainable solutions for the energy transition | Industrial Machinery Manufacturing | 🇮🇹 Baranzate | 959 |  |
| 70 | [Venchi](https://www.tamtam.ai/c/venchi) (eu.venchi.com)<br>A company with a 140-year history of crafting delicious, healthy chocolates and gelato, now with 120 shops worldwide and international recognition | Food and Beverage Manufacturing | 🇮🇹 Milan | 948 | 1878 |
| 71 | [Agrati Group](https://www.tamtam.ai/c/agrati-group) (agrati.com)<br>Global leader in fasteners manufacturing, engineering, and innovation, supplying automotive industry with billions of parts annually worldwide. | Motor Vehicle Parts Manufacturing | 🇮🇹 Veduggio con Colzano | 928 | 1939 |
| 72 | [BLM GROUP](https://www.tamtam.ai/c/blm-group) (blmgroup.com)<br>A global leader in tube processing technology, offering laser cutting, bending, end-forming, and measurement solutions with worldwide presence and over 60 years of experience | Machinery Manufacturing | 🇮🇹 Cantù | 884 | 1960 |
| 73 | [Chromavis Fareva](https://www.tamtam.ai/c/chromavis-fareva) (chromavis.com)<br>Innovative beauty company redefining the industry with sustainable and unique makeup and nailcare solutions, merging art, technology, and environmental responsibility | Personal Care Product Manufacturing | 🇮🇹 Offanengo | 874 | 2008 |
| 74 | [LUVE](https://www.tamtam.ai/c/luve) (luvegroup.com)<br>A global leader in air heat exchangers manufacturing with operations in refrigeration, process cooling, air conditioning, glass doors, IoT mirrors, and software development | Industrial Machinery Manufacturing | 🇮🇹 Uboldo | 869 | 1985 |
| 75 | [Candy Hoover Group](https://www.tamtam.ai/c/candy-hoover-group) (candy-group.com)<br>A leading European company in domestic appliances, producing washing machines, refrigerators, vacuum cleaners, and more under international and national brands | Manufacturing | 🇮🇹 Brugherio | 849 | 1945 |
| 76 | [Ospedale Galeazzi - Sant'Ambrogio](https://www.tamtam.ai/c/ospedale-galeazzi-sant-ambrogio) (grupposandonato.it)<br>The company brings together leading institutions in orthopedics, cardiovascular care, neurosurgery, and obesity surgery to provide comprehensive healthcare services | Hospitals and Health Care | 🇮🇹 Milan | 845 | 1963 |
| 77 | [Serioplast](https://www.tamtam.ai/c/serioplast) (serioplast.com)<br>Global producer of rigid plastic packaging for FMCG industry in various markets, designing machines, molds, recycling waste, and offering contract manufacturing services with sustainable solutions | Plastics Manufacturing | 🇮🇹 Seriate | 831 | 1974 |
| 78 | [LEGAMI](https://www.tamtam.ai/c/legami) (legami.com)<br>Designs and distributes lifestyle products including stationery, diaries, beauty, and tech accessories, with a global presence through various sales channels. | Manufacturing | 🇮🇹 Azzano San Paolo (BG) | 804 | 2003 |
| 79 | [FOMAS Group](https://www.tamtam.ai/c/fomas-group) (fomasgroup.com)<br>Manufactures forgings, seamless rolled rings, and metal powders for power generation, oil & gas, mobility, construction equipment, and general industry sectors. | Industrial Machinery Manufacturing | 🇮🇹 Osnago | 802 | 1956 |
| 80 | [RadiciGroup](https://www.tamtam.ai/c/radicigroup) (radicigroup.com)<br>A global leader in chemical intermediates, polymers, plastics, fibers, and nonwovens with a strong focus on innovation, quality, and sustainability | Manufacturing | 🇮🇹 Gandino | 797 |  |
| 81 | [Carlo Gavazzi Automation](https://www.tamtam.ai/c/carlo-gavazzi-automation) (gavazziautomation.com)<br>Designing, manufacturing, and marketing electronic control components for global building and industrial automation, including sensors, relays, timers, and energy management systems. | Appliances, Electrical, and Electronics Manufacturing | 🇮🇹 Lainate | 784 |  |
| 82 | [OMR Automotive](https://www.tamtam.ai/c/omr-automotive) (omrautomotive.com)<br>Global supplier and manufacturer of automotive components for various vehicles, serving leading manufacturers worldwide, including being Ferrari's Technical Partner | Motor Vehicle Manufacturing | 🇮🇹 Rezzato | 781 | 1919 |
| 83 | [Humanitas University](https://www.tamtam.ai/c/humanitas-university) (hunimed.eu)<br>An international medical school in Milan offering undergraduate and postgraduate programs in medicine, nursing, physiotherapy, and life sciences | Education Administration Programs | 🇮🇹 Pieve Emanuele | 760 | 2014 |
| 84 | [SIAE MICROELETTRONICA](https://www.tamtam.ai/c/siae-microelettronica) (siaemic.com)<br>Provides wireless transmission equipment including microwave and millimeter wave radios, cell site gateways, and network management systems globally. | Telecommunications | 🇮🇹 Cologno Monzese | 766 | 1952 |
| 85 | [IBSA Italy](https://www.tamtam.ai/c/ibsa-italy) (ibsaitaly.it)<br>A leading Italian pharmaceutical company with a focus on research, development, and manufacturing of a diverse portfolio of healthcare products worldwide | Pharmaceutical Manufacturing | 🇮🇹 Lodi | 748 | 1992 |
| 86 | [Centro Cardiologico Monzino](https://www.tamtam.ai/c/centro-cardiologico-monzino) (cardiologicomonzino.it)<br>The Cardiologico Monzino Center is a leading cardiologic research and treatment institute in Europe, offering specialized care and educational opportunities in Milan | Hospitals and Health Care | 🇮🇹 Milan | 729 | 1981 |
| 87 | [Flos](https://www.tamtam.ai/c/flos) (flos.com)<br>A leading manufacturer of innovative lighting solutions in residential and architectural sectors, known for high quality products designed by legendary designers | Design Services | 🇮🇹 Bovezzo | 11 | 1962 |
| 88 | [Stone Island](https://www.tamtam.ai/c/stone-island) (stoneisland.com)<br>Innovative sportswear brand focused on research, experimentation, and pushing boundaries in fibres, textiles, and garment design Established in 1982 | Retail Apparel and Fashion | 🇮🇹 Milan | 709 | 1982 |
| 89 | [Relatech](https://www.tamtam.ai/c/relatech) (relatech.com)<br>A digital enabler company offering cutting-edge digital transformation services, cloud-based platforms, and expertise in technologies like AI, Blockchain, and cybersecurity | IT Services and IT Consulting | 🇮🇹 Sesto San Giovanni | 699 | 2001 |
| 90 | [Bosch Italia](https://www.tamtam.ai/c/bosch-italia) (bosch.it)<br>A foundation-owned group dedicated to improving lives with technology in automotive, industrial, consumer goods, energy, and construction sectors since 1886 | Software Development | 🇮🇹 Milan | 688 | 1886 |
| 91 | [Sina](https://www.tamtam.ai/c/sina) (sina.it)<br>Industry leader in engineering and infrastructure projects for mobility, telecommunications, highways, railways, ports, and logistics platforms, focused on sustainability and efficient life cycle management | Facilities Services | 🇮🇹 Milan | 683 | 1962 |
| 92 | [Gruppo Lactalis Italia](https://www.tamtam.ai/c/gruppo-lactalis-italia) (lactalisvaloreitalia.it)<br>A leading Italian dairy company, part of the French Lactalis Group, producing a wide range of cheeses and cold cuts, with a strong focus on quality and tradition | Food and Beverage Manufacturing | 🇮🇹 Milan | 683 | 2007 |
| 93 | [Policlinico San Donato](https://www.tamtam.ai/c/policlinico-san-donato) (grupposandonato.it)<br>A leading research hospital in Italy providing top-quality healthcare, specializing in cardiovascular diseases, research, and medical education for over 50 years | Hospitals and Health Care | 🇮🇹 San Donato Milanese | 673 | 1969 |
| 94 | [ITALFARMACO S.P.A.](https://www.tamtam.ai/c/italfarmaco-s-p-a) (italfarmaco.com)<br>Private multinational pharmaceutical group producing and selling ethical medicines, focusing on cardiovascular, immunological, and oncological research and manufacturing. | Pharmaceutical Manufacturing | 🇮🇹 Cinisello Balsamo | 659 | 1938 |
| 95 | [Elemaster Group Electronic Technologies](https://www.tamtam.ai/c/elemaster-group-electronic-technologies) (elemaster.com)<br>A mechatronics service provider specializing in high-tech electronic equipment design, manufacturing, PCB, cable production, electronic manufacturing services, mechatronics solutions, logistics, and after-sales support | Appliances, Electrical, and Electronics Manufacturing | 🇮🇹 Lomagna | 650 | 1978 |
| 96 | [Tecniplast](https://www.tamtam.ai/c/tecniplast) (tecniplast.it)<br>Designs, manufactures, and distributes a complete range of vivarium equipment for lab animals, including IVCs, aquatic systems, washers, and digital ventilated cages. | Biotechnology Research | 🇮🇹 Varese | 657 | 1949 |
| 97 | [Evoca Group](https://www.tamtam.ai/c/evoca-group) (linktr.ee)<br>Producer of professional coffee and vending machines serving hotels, restaurants, offices, and public spaces with quality products. | Machinery Manufacturing | 🇮🇹 Valbrembo | 644 |  |
| 98 | [Copan Group](https://www.tamtam.ai/c/copan-group) (copangroup.com)<br>This company specializes in developing high-quality sample collection products and automated workflow solutions for various fields, focusing on innovation and improving patient health | Medical Equipment Manufacturing | 🇮🇹 Brescia | 627 | 1979 |
| 99 | [Schindler Italia](https://www.tamtam.ai/c/schindler-italia) (schindler.it)<br>A multinational company specializing in designing, installing, maintaining, and modernizing elevators, escalators, and moving walks worldwide to promote sustainable urban development | Industrial Machinery Manufacturing | 🇮🇹 Concorezzo | 623 | 1874 |
| 100 | [Eni Rewind](https://www.tamtam.ai/c/eni-rewind) (eni.com)<br>Eni Rewind utilizes Circular Economy principles to remediate and recover industrial land, water, and waste, creating value for local communities worldwide | Environmental Services | 🇮🇹 San Donato Milanese | 623 |  |

## 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)
- [Retail chains in Lombardy](https://www.tamtam.ai/l/retail-chains-lombardy) (429)
- [Financial services firms in Lombardy](https://www.tamtam.ai/l/financial-services-firms-lombardy) (262)
- [Corporate groups and holding companies in Lombardy](https://www.tamtam.ai/l/holding-companies-lombardy) (224)
- [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)
- [IT services companies in Lombardy](https://www.tamtam.ai/l/it-services-companies-lombardy) (180)
- [Family-owned companies in Lombardy](https://www.tamtam.ai/l/family-owned-companies-lombardy) (171)
- [Consumer goods companies in Lombardy](https://www.tamtam.ai/l/consumer-goods-companies-lombardy) (168)
- [Retail Apparel and Fashion companies in Lombardy](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-lombardy) (167)
- [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)
- [Software Development companies in Lombardy](https://www.tamtam.ai/l/software-development-companies-lombardy) (155)
- [Financial Services companies in Lombardy](https://www.tamtam.ai/l/financial-services-companies-lombardy) (154)
- [E-commerce companies in Lombardy](https://www.tamtam.ai/l/ecommerce-companies-lombardy) (150)
- [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

- [Companies with in-house R&D in Italy](https://www.tamtam.ai/l/r-and-d-companies-italy) (1,418)
- [Companies with in-house R&D in Emilia-Romagna](https://www.tamtam.ai/l/r-and-d-companies-emilia-romagna) (195)
- [Companies with in-house R&D in Veneto](https://www.tamtam.ai/l/r-and-d-companies-veneto) (182)
- [Companies with in-house R&D in Lazio](https://www.tamtam.ai/l/r-and-d-companies-lazio) (120)
- [Companies with in-house R&D in Piedmont](https://www.tamtam.ai/l/r-and-d-companies-piedmont) (102)
- [Companies with in-house R&D in Tuscany](https://www.tamtam.ai/l/r-and-d-companies-tuscany) (80)
- [Companies with in-house R&D in Campania](https://www.tamtam.ai/l/r-and-d-companies-campania) (44)
- [Companies with in-house R&D in Friuli-Venezia Giulia](https://www.tamtam.ai/l/r-and-d-companies-friuli-venezia-giulia) (43)
- [Companies with in-house R&D in the Marche](https://www.tamtam.ai/l/r-and-d-companies-marche) (34)
- [Companies with in-house R&D in Apulia](https://www.tamtam.ai/l/r-and-d-companies-apulia) (26)
- [Companies with in-house R&D in Trentino-South Tyrol](https://www.tamtam.ai/l/r-and-d-companies-trentino-south-tyrol) (25)
- [Companies with in-house R&D in Milan](https://www.tamtam.ai/l/r-and-d-companies-milan) (124)
- [Companies with in-house R&D in Rome](https://www.tamtam.ai/l/r-and-d-companies-rome) (82)
- [Companies with in-house R&D in Turin](https://www.tamtam.ai/l/r-and-d-companies-turin) (31)

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Source: https://www.tamtam.ai/l/r-and-d-companies-lombardy