Company lists · Data refreshed September 2026
Top 25 Professional service firms based in Italy
RevenueBase identified 1,188 professional service firms headquartered in Italy as of September 2026 and tracks 8,469 professional contacts across them, including 2,686 with verified work emails. Roma is the largest hub.
This list covers professional service firms headquartered in Italy, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest professional service firms based in Italy
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 406 contacts → | ||||
Strong evidence “Deloitte è tra le più grandi realtà nei servizi professionali alle imprese in Italia, dove è presente da circa 100 anni.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 300 contacts → | ||||
Indirect evidence “WST is a firm providing integrated consultancy in Legal, Tax, Risk, Compliance, ESG and Accounting areas of business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 268 contacts → | ||||
Indirect evidence “Società consulenza aziendale, revisione e organizzazione contabile associata al network internazionale Nexia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 122 contacts → | ||||
Indirect evidence “With employees in 146 countries, Baker Tilly provides a wide range of innovative and personalized consulting services in the areas of Audit & Advisory, Tax, Legal, and Consulting…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 115 contacts → | ||||
Indirect evidence “As attorneys, tax advisers, management and IT consultants and auditors, we are present with 110 own offices in around 50 countries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 81 contacts → | ||||
Strong evidence “EOS è una struttura professionale che mette a disposizione dei suoi clienti programmi di consulenza specialistica destinati agli imprenditori e management di aziende private e…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 59 contacts → | ||||
Indirect evidence “Lo Studio Berta, Nembrini, Colombini e Associati presta servizi ad aziende, società e lavoratori autonomi.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 56 contacts → | ||||
Strong evidence “TCA Triberti Colombo & Associati è uno studio professionale composto da avvocati, commercialisti e consulenti del lavoro.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 48 contacts → | ||||
Strong evidence “CDA Studio Legale Tributario si pone, sul mercato della consulenza, come struttura professionale in grado di proporre al mondo imprenditoriale e alla pubblica amministrazione…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 45 contacts → | ||||
Indirect evidence “ERGON Commercialisti e Revisori nasce quattordici anni fa con l’obiettivo di fornire un servizio di consulenza innovativo, personalizzato, specializzato, integrato e multi…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 44 contacts → | ||||
Indirect evidence “Baldi & Partners opera da oltre 50 anni nell'ambito della consulenza alle aziende.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 41 contacts → | ||||
Indirect evidence “BC & Studio di Consulenza Societaria Tributaria e Legale was founded in 1997 by its partners, Alberto Bestetti and Umberto Cattaneo, who – having successfully improved the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 40 contacts → | ||||
Strong evidence “Studi Professionali Integrati nasce nel dall’iniziale collaborazione di Dottori Commercialisti ed Avvocati e si sviluppa – secondo un'innovativa visione del servizio professionale…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 39 contacts → | ||||
Indirect evidence “CHI SIAMO Affianchiamo gli imprenditori delle PMI italiane nella gestione d’impresa, fornendo consulenza e soluzioni concrete nell’ambito fiscale, amministrativo, finanziario e…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 39 contacts → | ||||
Indirect evidence “Mpo è una società di consulenza costituita da Dottori Commercialisti, Revisori Legali e Avvocati, specializzata nella strutturazione e facilitazione di operazioni di aggregazione…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 38 contacts → | ||||
Strong evidence “Cortellazzo & Soatto was founded in Padua in 1967 as a professional association by Antonio Cortellazzo and Renzo Soatto.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 38 contacts → | ||||
Indirect evidence “WE ARE CHARTERED ACCOUNTANTS, LAWYERS AND MANAGEMENT CONSULTANTS.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 34 contacts → | ||||
Strong evidence “PPI & Partners Dottori Commercialisti è uno studio professionale indipendente specializzato in servizi di consulenza societaria, fiscale ed amministrativa.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 33 contacts → | ||||
Indirect evidence “Fondato nel 1974 dal Dr.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 33 contacts → | ||||
Indirect evidence “Guidato dai 3 partner, Edoardo Caravati, Piero Pagani, Filippo Caravati, lo Studio opera nel settore della consulenza Tributaria, Societaria, Aziendale e Contabile, con uffici in…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 32 contacts → | ||||
Strong evidence “FGM Management Consulting è una società di consulenza direzionale e gestionale, che dal 1996 opera in qualità di partner professionale di aziende private e pubbliche.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Strong evidence “GMG (Global Management Group S.r.l.) è una società di consulenza di direzione attiva in Italia dal 1996, con sede a Roma, costituita da professionisti con diverse esperienze…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 28 contacts → | ||||
Indirect evidence “CROSS HUB nasce con l’ambizioso obiettivo di affiancare le imprese, pubbliche e private, in tutti gli aspetti di natura strategica ed operativa attraverso la “mobilitazione” di…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 27 contacts → | ||||
Indirect evidence “Consilia Business Management è una società di consulenza attiva dal 2004 nell'offerta di servizi a società industriali e commerciali, banche, intermediari finanziari, enti e…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 26 contacts → | ||||
Indirect evidence “M&W Veronesi e Associati- commercialisti e consulenti per l’impresa- è una società di consulenza che fornisce alle imprese servizi fiscali e amministrativi, ordinari e…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: professional service firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names professional service firms.
- Partial evidence
- Its own public description names part of professional service firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional service firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,188 professional service firms based in Italy
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Professional service firms based in Italy at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Italy, so it is reported there. Company counts and contact totals on this page are exact for Italy, over 1,188 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among professional service firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Italy whose own description of what they do matches “professional service firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names professional service firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among professional service firms, and records with no verified work email. Companies headquartered outside Italy are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,686 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Professional service firms by metro
- Professional service firms in Roma84
- Professional service firms in Milano82
- Professional service firms in Milan33
- Professional service firms in Milano Mi25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names professional service firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many professional service firms are there based in Italy?
RevenueBase identified 1,188 professional service firms headquartered in Italy as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Deloitte Consulting, headquartered in Milan, tops this list with the largest team on record.
Which city has the most professional service firms?
Roma leads with 84 headquartered companies, followed by Milano (82) and Milan (33).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,686 verified decision-maker contacts tracked across these 1,188 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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