Company lists · Data refreshed September 2026

Top 14 Data breach response consultants based in Romania

RevenueBase identified 37 data breach response consultants headquartered in Romania as of September 2026 and tracks 200 professional contacts across them, including 86 with verified work emails. Bucharest is the largest hub.

This list covers data breach response consultants headquartered in Romania, 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 19, 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 19, 2026 86% judged on-target in blind review
37Companies
200Contacts tracked
86Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 14 largest data breach response consultants based in Romania

Ranked by team size
Top 14 of 37 data breach response consultants based in Romania, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to data breach response consultants: 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 evidenceSector 1, RomaniaHQ checked Sep 19, 202611-5045 contacts →

Partial evidence

Data Core Systems is a cybersecurity provider helping organizations tackle one of the biggest challenges of the digital environment.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceBucharest, RomaniaHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“FORT is the cybersecurity defender you can trust to show up when you need it most.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceSector 2, RomaniaHQ checked Sep 19, 202611-5023 contacts →

Indirect evidence

“BIT SENTINEL is an information security company.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceBucharest, RomaniaHQ checked Sep 19, 20261-1013 contacts →

Partial evidence

“A successful cyber security approach has multiple layers of protection spread across the computers, networks, applications, or data that one intends to keep safe.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceBucharest, RomaniaHQ checked Sep 19, 202611-5011 contacts →

Indirect evidence

“Welcome to Cyber Smart Defence!”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceCluj-napoca, RomaniaHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“We’re more than just cybersecurity professionals – we’re your defense against cyber threats.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceBucharest, RomaniaHQ checked Sep 19, 202611-508 contacts →

Indirect evidence

“Enterprise cybersecurity services: NIS2 & ISO 27001 compliance, penetration testing, red teaming, phishing simulations, attack surface management, MDR, vulnerability assessments…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSectorul 1, RomaniaHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Consulting Services and Training: Cyber-Security, Protection of Classified Information, Business Counterintelligence”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceCraiova, RomaniaHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“With a steadfast commitment to safeguarding your digital world, we're here to provide top-notch solutions, industry insights, and expert guidance.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceBucharest, RomaniaHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“We are on a mission to transform the way organizations reach and maintain digital operational resilience.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceBucharest, RomaniaHQ checked Sep 19, 202611-504 contacts →

Indirect evidence

“Founded in 2001 in Bucharest, Romania, Best Internet Security | BISS is a Cyber Security dedicated company, focused on providing towards Romanian organizations of all types and…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceBucuresti, RomaniaHQ checked Sep 19, 202611-501 contacts →

Indirect evidence

“Sectio Aurea is an advanced cybersecurity consulting company established in 2018, specializing in security audits, strategic cybersecurity advisory, outsourced security services…”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceBraşov, RomaniaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceConstanţa, RomaniaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“ITSales partners with businesses to make them secure, compliant, and audit-ready.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 14 of 37 data breach response consultants based in Romania

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 86 reachable decision-makers.

Free signup · no credit card

View the full list →

Data breach response consultants based in Romania at a glance

As of Sep 19, 2026
43.0%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
45.9%Largest-city concentration · Bucharest
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
13
51-200
2

Email recency for this list is measured worldwide rather than for Romania, so it is reported there. Company counts and contact totals on this page are exact for Romania, over 37 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 data breach response consultants, 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 Romania whose own description of what they do matches “data breach response consultants”. 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 data breach response consultants), 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 data breach response consultants, and records with no verified work email. Companies headquartered outside Romania 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, 86 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 19, 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 data breach response consultants, 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 data breach response consultants are there based in Romania?

RevenueBase identified 37 data breach response consultants headquartered in Romania 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?

Data Core Systems, Romania, headquartered in Romania, tops this list with the largest team on record.

Which city has the most data breach response consultants?

Bucharest leads with 17 headquartered companies, followed by Bucuresti (4) and Cluj-Napoca (2).

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 86 verified decision-maker contacts tracked across these 37 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 37 data breach response consultants based in Romania. Start with a free account, no credit card.

Download this list →

Related lists

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.