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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Almaviva Groupalmavivagroup.com
Provides digital innovation and ICT solutions globally, supporting business model transformation and competitiveness across public and private sectors. |
52,112 | |||
| 2 |
Translatedtranslated.com
A leading provider of human translation services in 150+ languages, combining human creativity and machine intelligence for speedy, high-quality translations |
2,070 | |||
| 3 |
Italferr S.p.A.gruppofsengineering.it
A leading Italian engineering firm with expertise in infrastructure projects for rail, road, and port, offering design, management, and consultancy services internationally |
1,896 | |||
| 4 |
MCS Management Consulting & Selectionmcs-selection.it
A managerial and organizational consulting company offering customized projects in HR, talent development, and executive search services, with international partnerships |
1,803 | |||
| 5 | 
Psicologiapsicoappetecchi.com
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 |
1,786 | |||
| 6 |
Be | Shaping the Futurebe-tse.it
A leading consulting company offering business consulting, IT, and digital services to financial, insurance, and industrial clients across Europe |
1,150 | |||
| 7 |
Orienta Agenzia per il Lavoroorienta.net
A leading Italian HR management company offering administration services, staff leasing, recruitment, training, outsourcing, and Executive Search services with a European presence |
1,012 | |||
| 8 | 909 | ||||
| 9 |
PROGER s.p.a.proger.it
An international company offering Italian engineering and management expertise in building, infrastructure, energy, oil & gas, sustainability, security with global presence |
886 | |||
| 10 |
Italconsult SpAitalconsult.com
Italian engineering consulting company specializing in transportation infrastructure, water, environment, energy, and civil structures, with a focus on social-economic development worldwide |
794 | |||
| 11 |
Chiomentichiomenti.net
A leading Italian law firm with a global reach, offering specialized legal services to businesses and institutions across various sectors and geographical regions |
735 | |||
| 12 |
POLYGON SPApolygon.eu
A European company specializing in medical device management, embracing change in the face of global health challenges to serve individuals, communities, and businesses |
708 | |||
| 13 |
Gianni & Origonigop.it
A full-service business law firm with over 450 professionals providing global legal services to Italian and foreign clients across different sectors |
701 | |||
| 14 |
SPERIsperispa.com
Providing architecture, engineering, planning, management, sustainability, and safety services for buildings, infrastructure, and property management projects. |
529 | |||
| 15 |
Mediatica Digital SpAmediaticadigital.it
We are a leading company specializing in digital platform development and operations, serving a wide range of sectors with innovative solutions |
508 | |||
| 16 |
Artelia Italiait.arteliagroup.com
A leading engineering company in Italy, specializing in building, industry, energy, transportation, and urban development projects with a focus on efficiency and sustainability |
438 | |||
| 17 |
APS Evolutiongroupmaire.com
A global energy group specializing in the development and operation of industrial plants within the energy sector |
421 | |||
| 18 | 413 | ||||
| 19 |
Studio Legale e Tributariosapglegal.com
A professional law firm advising clients in manufacturing, commerce, and services on tax, company, administrative, and civil law matters |
403 | |||
| 20 |
IRD Engineeringirdeng.com
Leading independent Italian engineering consultancy providing comprehensive infrastructure solutions worldwide, certified to ISO standards and with a strong track record in international projects |
393 | |||
| 21 |
Studio professionale di consulenza fiscale, legale e finanziariatlfadvisory.it
The company is a group of professionals providing business, financial, tax, and legal consulting services, with expertise in ordinary, extraordinary, and subsidized finance |
381 | |||
| 22 |
Progetti Europa & Global S.p.Apegitaly.it
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 |
369 | |||
| 23 |
SOGESIDsogesid.it
An engineering and technical assistance company working with the Ministry of Ecological Transition to plan and implement environmental projects nationwide |
368 | |||
| 24 | 360 | ||||
| 25 |
Adamis Business Innovationadamis.it
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 |
356 | |||
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. | |||||
| 26 |
CAF ACLIcafacli.it
The company provides personalized tax and social benefits assistance through a nationwide network of 1,000 offices and 1,500 trained operators |
333 | |||
| 27 |
ITMitmeurope.org
The company provides interpreting, translation, and cultural mediation services in a wide range of languages including rare and sign language |
324 | |||
| 28 |
Benigni & Kbenignibk.com
Benigni&K is a professional studio specializing in various areas, focusing on growth through mergers and acquisitions to provide tailored services globally |
315 | |||
| 29 |
Softlab S.p.A.soft.it
A publicly traded international company offering Business Advisory, ICT Consulting, and Digital Entertainment services through a network of professionals and innovative solutions |
310 | |||
| 30 |
Soft Strategysoftstrategy.it
Italian group of companies specializing in professional services and ICT solutions for medium to large businesses, focusing on Digital Transformation & Innovation Serving various industries |
305 | |||
| 31 | 284 | ||||
| 32 |
TRACTEBEL ENGINEERING S.R.Ltractebel-engie.com
A global engineering and consultancy firm with expertise in sustainable energy, offering innovative solutions for projects worldwide with a focus on quality and safety |
274 | |||
| 33 |
Key Partnerkeypartner.com
Consulting firm specializing in digital transformation, strategic planning, and cybersecurity, supporting companies with innovative technology and data-driven growth solutions. |
270 | |||
| 34 |
Energent S.p.A.energent.it
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 |
254 | |||
| 35 |
PTSptsclas.com
Specializing in strategic and operational consultancy, innovation, finance, and communication across various sectors in both public and private settings |
250 | |||
| 36 |
NexumStp S.p.a. Societ脿 Benefitnexumstp.it
Nexum is an alliance of professionals dedicated to supporting small and medium-sized businesses with innovation and expertise in various sectors |
245 | |||
| 37 |
Intersistemi Italia S.P.Aintersistemi.it
A group of companies specializing in ICT, project management, security, geomatics, healthcare, multimedia solutions, network infrastructure, market research, and renewable energy |
224 | |||
| 38 |
ISS INTERNATIONAL SpAiss-international.com
A global company offering engineering services in the Energy sector, specializing in Project Management, Engineering, Training, and Digital Twin Platform development |
201 | |||
| 39 |
Challenge Networkchallengenetwork.it
A large network offering strategic and operational consulting services in corporate training, master programs, events, and communication, focusing on continuous improvement |
190 | |||
| 40 | 186 | ||||
| 41 |
Direzione Lavoro S.p.A.direzionelavoro.it
An authorized employment agency providing temporary and permanent staffing services, recruitment, personnel search and selection, and professional relocation support |
181 | |||
| 42 |
Iniziativainiziativa.cc
Providing advisory services to businesses and public administrations for over thirty years to maximize development opportunities |
120 | |||
| 43 |
Major Bit Groupmajorbit.com
A company with 30 years of experience in ICT consulting and training, specializing in software development, business intelligence, AI, and operational procedures engineering |
114 | |||
| 44 |
Progress Group srlprogress.it
Certified Zucchetti partner in central Italy specializing in software solutions for time and attendance management, HR, business software, and access control |
110 | |||
| 45 |
GMG groupgmggroup.it
GMG is a management consulting firm in Italy, specializing in organizational and strategic consulting, financial business, risk management, and professional training |
67 | |||
| 46 |
PNO Innovation Italiapnoconsultants.com
CiaoTech, part of the PNO Group, provides innovative solutions and funding support for companies and research centers across Europe |
66 | |||
| 47 |
IdeaRE - Idea Real Estate S.p.A.idearespa.eu
Specializing in real estate asset management, we offer consulting services and IT solutions for property, facility, energy management, and agency services |
45 | |||
| 48 |
Hotels Doctors - Consulenza Alberghierahotelsdoctors.com
An independent team of hotel consultants specializing in solving management issues, improving operations, sales, marketing, and revenue management for hotels |
45 | |||
| 49 |
AXIS S.p.A.axis-advisors.com
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 |
37 | |||
| 50 |
INNOVA - Technology Transfer and Valorisationinnova-eu.net
Facilitating technology transfer and innovation consulting, seed capital support, and research lab facilities to bridge the gap between research and industry |
37 | |||
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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 Lazio
- The largest companies in Lazio 1,243
- Multinational companies in Lazio 226
- Retail chains in Lazio 128
- Companies with in-house R&D in Lazio 120
- Critical infrastructure operators in Lazio 105
- Public sector organisations in Lazio 102
- Financial services firms in Lazio 98
- IT services companies in Lazio 84
- IT Services and IT Consulting companies in Lazio 78
- Manufacturers in Lazio 77
- Companies with a mobile app in Lazio 75
- Financial Services companies in Lazio 61
- Education providers in Lazio 60
- Consulting firms in Lazio 59
- Corporate groups and holding companies in Lazio 51
- Software Development companies in Lazio 48
- Hospitality companies in Lazio 46
- Family-owned companies in Lazio 46
- Aerospace and defence companies in Lazio 45
- E-commerce companies in Lazio 45
- Hotel and hospitality groups in Lazio 43
- Consumer goods companies in Lazio 42
- Healthcare providers in Lazio 42
- Luxury brands in Lazio 39