Company lists · Data refreshed September 2026

Top 14 Legal investigation firms based in Italy

RevenueBase identified 152 legal investigation firms headquartered in Italy as of September 2026 and tracks 610 professional contacts across them, including 42 with verified work emails. Roma is the largest hub.

This list covers legal investigation 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
152Companies
610Contacts tracked
42Verified emails
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The 14 largest legal investigation firms based in Italy

Ranked by team size
Top 14 of 152 legal investigation firms based in Italy, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legal investigation firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceRoma, ItalyHQ checked Sep 20, 2026201-50057 contacts →

Partial evidence

“Global Investigation Service operates on the whole national territory in accordance with the Law 134 T.U.L.P.S.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceColnago, ItalyHQ checked Sep 20, 202651-20019 contacts →

Indirect evidence

“La tua tranquillità: il nostro mestiere!”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidencePinerolo, ItalyHQ checked Sep 20, 20261-1013 contacts →

Partial evidence

“Computer Forensics and Digital Investigations firm, Di.Fo.B.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceBologna, ItalyHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“SEA Investigazioni è una realtà specializzata nel settore dell’antifrode assicurativa e nella ricostruzione dei sinistri.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceCarpi, ItalyHQ checked Sep 20, 202611-509 contacts →

Partial evidence

“Carpinvest Group, with over 30 years of experience in the field, is undoubtedly the Investigation Firm with the largest know-how in Italy.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceFerrara, ItalyHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“La bilancia è la giustizia: un ponte, un percorso, un mezzo di comunicazione tra diversità che si ritrovano nel diritto.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceRavenna, ItalyHQ checked Sep 20, 20261-107 contacts →

Indirect evidence

“La DIAG INVESTIGAZIONI esegue indagini e investigazioni private, bonifiche ambientali e telefoniche da microspie, infedeltà coniugali, accertamenti pre e post matrimoniali…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceMilan, ItalyHQ checked Sep 20, 20261-106 contacts →

Indirect evidence

“Giorgio®, founded in 2007 by Alberto Giorgio®, has become the Italian reference point for Forensic Engineering.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceFerrara, ItalyHQ checked Sep 20, 20261-105 contacts →

Partial evidence

“Aenigma Studio Tecnico Investigativo svolge attività investigative a supporto di imprese, professionisti e privati, fornendo informazioni, elementi di analisi e strumenti utili…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceMilano, ItalyHQ checked Sep 20, 20261-104 contacts →

Indirect evidence

“La nostra missione Porsi al servizio di leader, manager, professionisti e privati affiancandoli nella gestione di problematiche complesse, mediante strategie di intelligence…”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceSan Giovanni In Persiceto, ItalyHQ checked Sep 20, 202611-503 contacts →

Partial evidence

“AB Investigazioni srl è un’agenzia investigativa della provincia di Bologna, nata nel 2012 con il preciso intento di contrastare qualsiasi fenomeno illecito e fraudolento…”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceVerona, ItalyHQ checked Sep 20, 202611-502 contacts →

Partial evidence

“TOP SECRET INVESTIGATIONS & SECURITY è stata fondata da Stefano Lucchese nel 1998, la società si occupa a livello internazionale di indagini private, indagini aziendali, indagini…”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceMilano, ItalyHQ checked Sep 20, 20261-102 contacts →

Partial evidence

“KEY INVESTIGATION & INTELLIGENCE è una boutique investigativa e digitale che assiste i propri Clienti in tutte le forme di litigations giuslavoristiche, precontrattuali, civili e…”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceMilan, ItalyHQ checked Sep 20, 20261-102 contacts →

Indirect evidence

“Studio legale penale, avvocato Giuseppe M.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 14 of 152 legal investigation firms based in Italy

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Legal investigation firms based in Italy at a glance

As of Sep 20, 2026
6.9%Verified-email coverage
4.0Average contacts per company
1-10Median size (employees)
9.9%Largest-city concentration · Roma
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
93
11-50
46
51-200
9
201-500
4

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 152 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 legal investigation 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 “legal investigation 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 legal investigation 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 legal investigation 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, 42 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.

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 legal investigation 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 legal investigation firms are there based in Italy?

RevenueBase identified 152 legal investigation 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?

Global Investigation Service, headquartered in Roma, tops this list with the largest team on record.

Which city has the most legal investigation firms?

Roma leads with 15 headquartered companies, followed by Milano (9) and Napoli (7).

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 42 verified decision-maker contacts tracked across these 152 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.