# Professional services firms headquartered in Lazio

Tamtam tracks 58 professional services firms headquartered in Lazio. This list ranks the 50 largest by number of employees on LinkedIn, led by Almaviva Group, Translated and Italferr S.p.A.. Their median headcount is 356. Half of them were founded in 2000 or later. The most common headquarters are Rome (45) and Pomezia (2).

These professional services firms in Lazio are primarily large organizations, many with an international presence. The list includes companies such as Almaviva Group, offering digital innovation and ICT solutions globally, and Translated, a provider of human translation services. Also present are Italferr S.p.A., an engineering firm specializing in infrastructure projects, and MCS Management Consulting & Selection, which provides managerial and organizational consulting.

The data shows a strong concentration of headquarters in Rome, indicating the city's role as a hub for professional services in the region. The sector is diverse, ranging from IT services and consulting to civil engineering, human resources, and legal services.

🇮🇹 Lazio · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Almaviva Group](https://www.tamtam.ai/c/almaviva-group) (almavivagroup.com)<br>Provides digital innovation and ICT solutions globally, supporting business model transformation and competitiveness across public and private sectors. | IT Services and IT Consulting | 🇮🇹 Rome | 52,112 | 2005 |
| 2 | [Translated](https://www.tamtam.ai/c/translated) (translated.com)<br>A leading provider of human translation services in 150+ languages, combining human creativity and machine intelligence for speedy, high-quality translations | Translation and Localization | 🇮🇹 Rome | 2,070 | 1999 |
| 3 | [Italferr S.p.A.](https://www.tamtam.ai/c/italferr-s-p-a) (gruppofsengineering.it)<br>A leading Italian engineering firm with expertise in infrastructure projects for rail, road, and port, offering design, management, and consultancy services internationally | Civil Engineering | 🇮🇹 Rome | 1,896 |  |
| 4 | [MCS Management Consulting & Selection](https://www.tamtam.ai/c/mcs-management-consulting-and-selection) (mcs-selection.it)<br>A managerial and organizational consulting company offering customized projects in HR, talent development, and executive search services, with international partnerships | Business Consulting and Services | 🇮🇹 Rome | 1,803 | 1977 |
| 5 | [Psicologia](https://www.tamtam.ai/c/psicologia) (psicoappetecchi.com)<br>A psychology company based in Civitavecchia, specializing in cognitive-behavioral therapy, forensic psychology, emergency psychology, and volunteering in various organizations Offers counseling and training services | Individual and Family Services | 🇮🇹 Civitavecchia | 1,786 | 2000 |
| 6 | [Be \| Shaping the Future](https://www.tamtam.ai/c/be-shaping-the-future) (be-tse.it)<br>A leading consulting company offering business consulting, IT, and digital services to financial, insurance, and industrial clients across Europe | Business Consulting and Services | 🇮🇹 Milan | 1,150 | 2008 |
| 7 | [Orienta Agenzia per il Lavoro](https://www.tamtam.ai/c/orienta-agenzia-per-il-lavoro) (orienta.net)<br>A leading Italian HR management company offering administration services, staff leasing, recruitment, training, outsourcing, and Executive Search services with a European presence | Human Resources Services | 🇮🇹 Rome | 1,012 | 1999 |
| 8 | [Formez](https://www.tamtam.ai/c/formez) (formez.it)<br>The company supports public administrations in developing organizational innovation projects, improving service quality, and promoting international cooperation and communication | Government Administration | 🇮🇹 Rome | 909 | 1965 |
| 9 | [PROGER s.p.a.](https://www.tamtam.ai/c/proger-s-p-a) (proger.it)<br>An international company offering Italian engineering and management expertise in building, infrastructure, energy, oil & gas, sustainability, security with global presence | Design Services | 🇮🇹 Rome | 886 | 1951 |
| 10 | [Italconsult SpA](https://www.tamtam.ai/c/italconsult-spa) (italconsult.com)<br>Italian engineering consulting company specializing in transportation infrastructure, water, environment, energy, and civil structures, with a focus on social-economic development worldwide | Civil Engineering | 🇮🇹 Rome | 794 | 1957 |
| 11 | [Chiomenti](https://www.tamtam.ai/c/chiomenti) (chiomenti.net)<br>A leading Italian law firm with a global reach, offering specialized legal services to businesses and institutions across various sectors and geographical regions | Law Practice | 🇮🇹 Rome | 735 | 1948 |
| 12 | [POLYGON SPA](https://www.tamtam.ai/c/polygon-spa) (polygon.eu)<br>A European company specializing in medical device management, embracing change in the face of global health challenges to serve individuals, communities, and businesses | Hospitals and Health Care | 🇮🇹 Rome | 708 |  |
| 13 | [Gianni & Origoni](https://www.tamtam.ai/c/gianni-and-origoni) (gop.it)<br>A full-service business law firm with over 450 professionals providing global legal services to Italian and foreign clients across different sectors | Legal Services | 🇮🇹 Rome | 701 | 1988 |
| 14 | [SPERI](https://www.tamtam.ai/c/speri) (sperispa.com)<br>Providing architecture, engineering, planning, management, sustainability, and safety services for buildings, infrastructure, and property management projects. | Civil Engineering | 🇮🇹 Rome | 529 | 1973 |
| 15 | [Mediatica Digital SpA](https://www.tamtam.ai/c/mediatica-digital-spa) (mediaticadigital.it)<br>We are a leading company specializing in digital platform development and operations, serving a wide range of sectors with innovative solutions | IT Services and IT Consulting | 🇮🇹 Rome | 508 | 2000 |
| 16 | [Artelia Italia](https://www.tamtam.ai/c/artelia-italia) (it.arteliagroup.com)<br>A leading engineering company in Italy, specializing in building, industry, energy, transportation, and urban development projects with a focus on efficiency and sustainability | Civil Engineering | 🇮🇹 Rome | 438 | 2001 |
| 17 | [APS Evolution](https://www.tamtam.ai/c/aps-evolution) (groupmaire.com)<br>A global energy group specializing in the development and operation of industrial plants within the energy sector | Oil and Gas | 🇮🇹 Rome | 421 |  |
| 18 | [Intecs](https://www.tamtam.ai/c/intecs) (intecs.it)<br>International leader in design and development of applications, tools, software, hardware components and products for various critical markets including Aerospace, Defense, and Automotive. | Engineering Services | 🇮🇹 Rome | 413 | 1974 |
| 19 | [Studio Legale e Tributario](https://www.tamtam.ai/c/studio-legale-e-tributario) (sapglegal.com)<br>A professional law firm advising clients in manufacturing, commerce, and services on tax, company, administrative, and civil law matters | Law Practice | 🇮🇹 Rome | 403 | 2005 |
| 20 | [IRD Engineering](https://www.tamtam.ai/c/ird-engineering) (irdeng.com)<br>Leading independent Italian engineering consultancy providing comprehensive infrastructure solutions worldwide, certified to ISO standards and with a strong track record in international projects | Civil Engineering | 🇮🇹 Rome | 393 | 2000 |
| 21 | [Studio professionale di consulenza fiscale, legale e finanziaria](https://www.tamtam.ai/c/studio-professionale-di-consulenza-fiscale-legale-e-finanziaria) (tlfadvisory.it)<br>The company is a group of professionals providing business, financial, tax, and legal consulting services, with expertise in ordinary, extraordinary, and subsidized finance | Financial Services | 🇮🇹 Rome | 381 | 2005 |
| 22 | [Progetti Europa & Global S.p.A](https://www.tamtam.ai/c/progetti-europa-and-global-s-p-a) (pegitaly.it)<br>An Engineering and Contracting Company with 40 years of experience in the Oil & Gas industry, specializing in upstream process units, transportation facilities, and automation systems | Oil and Gas | 🇮🇹 Rome | 369 | 1998 |
| 23 | [SOGESID](https://www.tamtam.ai/c/sogesid) (sogesid.it)<br>An engineering and technical assistance company working with the Ministry of Ecological Transition to plan and implement environmental projects nationwide | Government Administration | 🇮🇹 Rome | 368 | 1994 |
| 24 | [Deep Blue](https://www.tamtam.ai/c/deep-blue) (dblue.it)<br>A research and consultancy firm specializing in human-centred design and validation in various industries, offering services in human factors, safety, and sustainability | Research Services | 🇮🇹 Rome | 360 | 2001 |
| 25 | [Adamis Business Innovation](https://www.tamtam.ai/c/adamis-business-innovation) (adamis.it)<br>Adamis Group Italia is an image company that offers personalized services with a focus on details, creativity, and dedication to provide emotional experiences for clients | Personal Care Product Manufacturing | 🇮🇹 Rome | 356 | 1999 |
| 26 | [CAF ACLI](https://www.tamtam.ai/c/caf-acli) (cafacli.it)<br>The company provides personalized tax and social benefits assistance through a nationwide network of 1,000 offices and 1,500 trained operators | Individual and Family Services | 🇮🇹 Rome | 333 | 1994 |
| 27 | [ITM](https://www.tamtam.ai/c/itm) (itmeurope.org)<br>The company provides interpreting, translation, and cultural mediation services in a wide range of languages including rare and sign language | Translation and Localization | 🇮🇹 Rome | 324 | 2005 |
| 28 | [Benigni & K](https://www.tamtam.ai/c/benigni-and-k) (benignibk.com)<br>Benigni&K is a professional studio specializing in various areas, focusing on growth through mergers and acquisitions to provide tailored services globally | Business Consulting and Services | 🇮🇹 Rome | 315 |  |
| 29 | [Softlab S.p.A.](https://www.tamtam.ai/c/softlab-s-p-a) (soft.it)<br>A publicly traded international company offering Business Advisory, ICT Consulting, and Digital Entertainment services through a network of professionals and innovative solutions | IT Services and IT Consulting | 🇮🇹 Rome | 310 |  |
| 30 | [Soft Strategy](https://www.tamtam.ai/c/soft-strategy) (softstrategy.it)<br>Italian group of companies specializing in professional services and ICT solutions for medium to large businesses, focusing on Digital Transformation & Innovation Serving various industries | Business Consulting and Services | 🇮🇹 Rome | 305 | 2006 |
| 31 | [IRBM](https://www.tamtam.ai/c/irbm) (irbm.com)<br>An innovative research organization with global pharma heritage, IRBM accelerates drug discovery programs from conception to clinic with expertise in small molecules, peptides, and antibodies | Biotechnology Research | 🇮🇹 Pomezia | 284 | 2009 |
| 32 | [TRACTEBEL ENGINEERING S.R.L](https://www.tamtam.ai/c/tractebel-engineering-s-r-l) (tractebel-engie.com)<br>A global engineering and consultancy firm with expertise in sustainable energy, offering innovative solutions for projects worldwide with a focus on quality and safety | Oil and Gas | 🇮🇹 Rome | 274 |  |
| 33 | [Key Partner](https://www.tamtam.ai/c/key-partner) (keypartner.com)<br>Consulting firm specializing in digital transformation, strategic planning, and cybersecurity, supporting companies with innovative technology and data-driven growth solutions. | Business Consulting and Services | 🇮🇹 Rome | 270 | 2010 |
| 34 | [Energent S.p.A.](https://www.tamtam.ai/c/energent-s-p-a) (energent.it)<br>A historic company with over 300 employees, offering IT services to both public and private sectors, focusing on infrastructure, application development, security, and ICT technologies | IT Services and IT Consulting | 🇮🇹 Rome | 254 | 2013 |
| 35 | [PTS](https://www.tamtam.ai/c/pts) (ptsclas.com)<br>Specializing in strategic and operational consultancy, innovation, finance, and communication across various sectors in both public and private settings | Business Consulting and Services | 🇮🇹 Rome | 250 | 1995 |
| 36 | [NexumStp S.p.a. Società Benefit](https://www.tamtam.ai/c/nexumstp-s-p-a-societa-benefit) (nexumstp.it)<br>Nexum is an alliance of professionals dedicated to supporting small and medium-sized businesses with innovation and expertise in various sectors | Business Consulting and Services | 🇮🇹 Rome | 245 | 2018 |
| 37 | [Intersistemi Italia S.P.A](https://www.tamtam.ai/c/intersistemi-italia-s-p-a) (intersistemi.it)<br>A group of companies specializing in ICT, project management, security, geomatics, healthcare, multimedia solutions, network infrastructure, market research, and renewable energy | IT Services and IT Consulting | 🇮🇹 Rome | 224 |  |
| 38 | [ISS INTERNATIONAL SpA](https://www.tamtam.ai/c/iss-international-spa) (iss-international.com)<br>A global company offering engineering services in the Energy sector, specializing in Project Management, Engineering, Training, and Digital Twin Platform development | Oil and Gas | 🇮🇹 Rome | 201 | 2004 |
| 39 | [Challenge Network](https://www.tamtam.ai/c/challenge-network) (challengenetwork.it)<br>A large network offering strategic and operational consulting services in corporate training, master programs, events, and communication, focusing on continuous improvement | Professional Training and Coaching | 🇮🇹 Rome | 190 | 2000 |
| 40 | [IGEAM](https://www.tamtam.ai/c/igeam) (igeam.it)<br>A company specializing in sustainable development consulting and engineering, providing integrated solutions in environment, health & safety for businesses and organizations | Business Consulting and Services | 🇮🇹 Rome | 186 | 1979 |
| 41 | [Direzione Lavoro S.p.A.](https://www.tamtam.ai/c/direzione-lavoro-s-p-a) (direzionelavoro.it)<br>An authorized employment agency providing temporary and permanent staffing services, recruitment, personnel search and selection, and professional relocation support | Staffing and Recruiting | 🇮🇹 Pomezia | 181 | 2016 |
| 42 | [Iniziativa](https://www.tamtam.ai/c/iniziativa) (iniziativa.cc)<br>Providing advisory services to businesses and public administrations for over thirty years to maximize development opportunities | Financial Services | 🇮🇹 Rome | 120 |  |
| 43 | [Major Bit Group](https://www.tamtam.ai/c/major-bit-group) (majorbit.com)<br>A company with 30 years of experience in ICT consulting and training, specializing in software development, business intelligence, AI, and operational procedures engineering | IT Services and IT Consulting | 🇮🇹 Rome | 114 | 1993 |
| 44 | [Progress Group srl](https://www.tamtam.ai/c/progress-group-srl) (progress.it)<br>Certified Zucchetti partner in central Italy specializing in software solutions for time and attendance management, HR, business software, and access control | IT Services and IT Consulting | 🇮🇹 Cassino | 110 | 1993 |
| 45 | [GMG group](https://www.tamtam.ai/c/gmg-group) (gmggroup.it)<br>GMG is a management consulting firm in Italy, specializing in organizational and strategic consulting, financial business, risk management, and professional training | Business Consulting and Services | 🇮🇹 Rome | 67 | 1996 |
| 46 | [PNO Innovation Italia](https://www.tamtam.ai/c/pno-innovation-italia) (pnoconsultants.com)<br>CiaoTech, part of the PNO Group, provides innovative solutions and funding support for companies and research centers across Europe | Financial Services | 🇮🇹 Rome | 66 | 1984 |
| 47 | [IdeaRE - Idea Real Estate S.p.A.](https://www.tamtam.ai/c/ideare-idea-real-estate-s-p-a) (idearespa.eu)<br>Specializing in real estate asset management, we offer consulting services and IT solutions for property, facility, energy management, and agency services | IT Services and IT Consulting | 🇮🇹 Rome | 45 | 2003 |
| 48 | [Hotels Doctors - Consulenza Alberghiera](https://www.tamtam.ai/c/hotels-doctors-consulenza-alberghiera) (hotelsdoctors.com)<br>An independent team of hotel consultants specializing in solving management issues, improving operations, sales, marketing, and revenue management for hotels | Hospitality | 🇮🇹 Rome | 45 | 2011 |
| 49 | [AXIS S.p.A.](https://www.tamtam.ai/c/axis-s-p-a) (axis-advisors.com)<br>Established in 2019, AXIS SpA is a distressed asset management platform specializing in credit anomalies, offering a range of services to financial intermediaries and private equity funds | Financial Services | 🇮🇹 Rome | 37 | 2019 |
| 50 | [INNOVA - Technology Transfer and Valorisation](https://www.tamtam.ai/c/innova-technology-transfer-and-valorisation) (innova-eu.net)<br>Facilitating technology transfer and innovation consulting, seed capital support, and research lab facilities to bridge the gap between research and industry | IT Services and IT Consulting | 🇮🇹 Rome | 37 | 1993 |

## 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 Lazio

- [The largest companies in Lazio](https://www.tamtam.ai/l/largest-companies-lazio) (1,243)
- [Multinational companies in Lazio](https://www.tamtam.ai/l/multinational-companies-lazio) (226)
- [Retail chains in Lazio](https://www.tamtam.ai/l/retail-chains-lazio) (128)
- [Companies with in-house R&D in Lazio](https://www.tamtam.ai/l/r-and-d-companies-lazio) (120)
- [Critical infrastructure operators in Lazio](https://www.tamtam.ai/l/critical-infrastructure-operators-lazio) (105)
- [Public sector organisations in Lazio](https://www.tamtam.ai/l/public-sector-organisations-lazio) (102)
- [Financial services firms in Lazio](https://www.tamtam.ai/l/financial-services-firms-lazio) (98)
- [IT services companies in Lazio](https://www.tamtam.ai/l/it-services-companies-lazio) (84)
- [IT Services and IT Consulting companies in Lazio](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-lazio) (78)
- [Manufacturers in Lazio](https://www.tamtam.ai/l/manufacturers-lazio) (77)
- [Companies with a mobile app in Lazio](https://www.tamtam.ai/l/companies-with-mobile-app-lazio) (75)
- [Financial Services companies in Lazio](https://www.tamtam.ai/l/financial-services-companies-lazio) (61)
- [Education providers in Lazio](https://www.tamtam.ai/l/education-companies-lazio) (60)
- [Consulting firms in Lazio](https://www.tamtam.ai/l/consulting-firms-lazio) (59)
- [Corporate groups and holding companies in Lazio](https://www.tamtam.ai/l/holding-companies-lazio) (51)
- [Software Development companies in Lazio](https://www.tamtam.ai/l/software-development-companies-lazio) (48)
- [Hospitality companies in Lazio](https://www.tamtam.ai/l/hospitality-companies-lazio) (46)
- [Family-owned companies in Lazio](https://www.tamtam.ai/l/family-owned-companies-lazio) (46)
- [Aerospace and defence companies in Lazio](https://www.tamtam.ai/l/aerospace-and-defense-companies-lazio) (45)
- [E-commerce companies in Lazio](https://www.tamtam.ai/l/ecommerce-companies-lazio) (45)
- [Hotel and hospitality groups in Lazio](https://www.tamtam.ai/l/hospitality-groups-lazio) (43)
- [Consumer goods companies in Lazio](https://www.tamtam.ai/l/consumer-goods-companies-lazio) (42)
- [Healthcare providers in Lazio](https://www.tamtam.ai/l/healthcare-providers-lazio) (42)
- [Luxury brands in Lazio](https://www.tamtam.ai/l/luxury-brands-lazio) (39)

## The same list elsewhere in Italy

- [Professional services firms in Italy](https://www.tamtam.ai/l/professional-services-firms-italy) (398)
- [Professional services firms in Lombardy](https://www.tamtam.ai/l/professional-services-firms-lombardy) (162)
- [Professional services firms in Emilia-Romagna](https://www.tamtam.ai/l/professional-services-firms-emilia-romagna) (32)
- [Professional services firms in Piedmont](https://www.tamtam.ai/l/professional-services-firms-piedmont) (31)
- [Professional services firms in Veneto](https://www.tamtam.ai/l/professional-services-firms-veneto) (30)
- [Professional services firms in Milan](https://www.tamtam.ai/l/professional-services-firms-milan) (134)
- [Professional services firms in Rome](https://www.tamtam.ai/l/professional-services-firms-rome) (52)

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Source: https://www.tamtam.ai/l/professional-services-firms-lazio