Company lists · Data refreshed August 2026
Top 25 Constitutional law firms based in Italy
RevenueBase identified 456 constitutional law firms headquartered in Italy as of August 2026 and tracks 1,705 professional contacts across them, including 335 with verified work emails and 81 with mobile numbers. Roma is the largest hub.
This list covers constitutional law 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 August 31, 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 constitutional law firms based in Italy
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 40 contacts → | ||||
Indirect evidence “Weigmann Studio Legale has been established in January 2019 as a result of the merger and integration of two Turin’s historical professional associations: Studio Tosetto, Weigmann…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 2 | 29 contacts → | ||||
Partial evidence “Polis Avvocati originated from the idea of creating a multidisciplinary legal firm, aimed at offering a wider assistance and specialist expertise in various law sectors as well as…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 3 | 19 contacts → | ||||
Indirect evidence “Lo Studio Legale BDL è una struttura di circa 20 avvocati con sede in Roma e Milano, che fornisce consulenza ed assistenza legale nelle materie del diritto civile, commerciale…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 4 | 19 contacts → | ||||
Indirect evidence “Lo studio legale Focus offre una ampia gamma di servizi legali nell’ambito del diritto civile, grazie alle competenze dei suoi soci e collaboratori, che spaziano dalla consulenza…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 5 | 16 contacts → | ||||
Indirect evidence “Costituito nell’anno dagli Avvocati Francesco Ferroni e Dario Franceschini, lo Studio Legale Effeffe & Partners è un’associazione professionale che opera su tutto il territorio…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 6 | 15 contacts → | ||||
Indirect evidence “Studio Legale Lombardo è uno studio legale specializzato nella difesa dei lavoratori ad alto profilo.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 7 | 15 contacts → | ||||
Indirect evidence “Lo Studio viene fondato (in forma non ancora associata) nel dicembre del 1996 a Milano dall’avvocato Maurizio Zoppolato e da subito si occupa in via pressoché esclusiva di diritto…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 contacts → | ||||
Partial evidence “Campa Avvocati is a law firm that offers professionalism to support clients in the challenges and opportunities of our time.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 contacts → | ||||
Indirect evidence “Lo Studio ha sede a Roma ed offre assistenza legale giudiziale e stragiudiziale su tutto il territorio nazionale, anche grazie ad un sistema di relazioni consolidate con altri…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 10 | 12 contacts → | ||||
Indirect evidence “Lo Studio Legale De Nova, fondato da Giorgio De Nova, emerito di Diritto Civile presso l’Università degli Studi di Milano, è studio legale di eccellenza e punto di riferimento per…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 contacts → | ||||
Indirect evidence “Lo Studio legale associato Fenoglio Callegari è stato fondato nel 1998 dall’Avv.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Indirect evidence “Lo Studio nasce a Milano nel 1961; attualmente è una associazione professionale tra gli avvocati Andrea Natale, Marco Pola, Mauro Mercadante e Laura Natale.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Indirect evidence “Dal 1983 lo Studio Antichi rappresenta un sicuro punto di riferimento per chiunque voglia far valere le proprie ragioni avanti ai Giudici, nelle relazioni civili e negli affari…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Indirect evidence “Lo studio è stato fondato nel 1977 dall’avv.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 contacts → | ||||
Indirect evidence “Conte & Giacomini Avvocati nasce nel 1992 dalla fusione degli studi dell’Avv.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 16 | 8 contacts → | ||||
Indirect evidence “Lo Studio Legale Callipari opera sull'intero territorio nazionale avvalendosi della collaborazione di numerosi professionisti interni ed esterni, così da poter affrontare…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence “Lo Studio Legale Ciaglia e Associati, sito nel Palazzo degli Ambasciatori, al quartiere Coppedè, vanta una pluriennale e specialistica esperienza di diritto amministrativo e…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Indirect evidence “Studio Plura offre consulenza e assistenza legale completa ad aziende e persone in tutti i settori del diritto, grazie ai numerosi professionisti e alle specializzazioni maturate…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Indirect evidence “Lo studio, fondato a Padova nel 1982 dall’avv.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Indirect evidence “Lo Studio Legale Malinconico & Gentile è strutturato al fine di fornire un’assistenza tailor made seguendo il Cliente con competenza e tempestività nelle seguenti aree: diritto…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “Lo studio Bissi Giacometti Avvocati Associati nasce nel 2013 dal comune intento dei due soci fondatori, gli avvocati Aldo Bissi e Monica Giacometti, di dare nuova forma e nuovo…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Indirect evidence “Lo Studio Legale si occupa di diritto civile, delle assicurazioni, penale e amministrativo, con particolare riferimento all’ambito della responsabilità medico sanitaria, al…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Studio Legale specializzato nella consulenza globale alle Imprese” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Lo studio legale Russi, fondato dall’avvocato Francesco Paolo Russi negli anni ‘50, è caratterizzato da una impostazione multidisciplinare nelle varie materie del diritto.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Lo Studio Legale Gorio Minervini nasce nel 2001 come associazione fra professionisti, fondata dall’Avv.” Source: RevenueBase Database · checked Aug 31, 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: constitutional law 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 constitutional law firms.
- Partial evidence
- Its own public description names part of constitutional law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name constitutional law 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 456 constitutional law firms based in Italy
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Constitutional law firms based in Italy at a glance
As of Aug 31, 2026Companies by employee count
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 constitutional law 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 “constitutional law 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 constitutional law 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 constitutional law 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, 335 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 August 31, 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.
Constitutional law firms by metro
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 constitutional law 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 constitutional law firms are there based in Italy?
RevenueBase identified 456 constitutional law firms headquartered in Italy as of August 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?
Weigmann Studio Legale, headquartered in Torino, tops this list with the largest team on record.
Which city has the most constitutional law firms?
Roma leads with 57 headquartered companies, followed by Milano (44) and Torino (19).
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 335 verified decision-maker contacts tracked across these 456 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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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