Company lists · Data refreshed September 2026

Top 10 Cybersecurity companies based in Lithuania

Our directory lists 28 cybersecurity companies based in Lithuania, with 271 professional contacts and 115 email addresses. The list was last updated in September 2026, and Vilnius is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of September 14, 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 14, 2026 86% judged on-target in blind review
28Companies
271Contacts tracked
115Verified emails
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The 10 largest cybersecurity companies based in Lithuania

Ranked by team size
Top 10 of 28 cybersecurity companies based in Lithuania, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity companies: 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
1Indirect evidenceVilnius, LithuaniaHQ checked Sep 14, 202651-200130 contacts →

Indirect evidence

“We glimpse into the deep, not just trends.”

Source: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceVilnius, LithuaniaHQ checked Sep 14, 202651-20063 contacts →

Strong evidence

“NRD Cyber Security offers cybersecurity solutions, consulting, and other services.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceAvižieniai, LithuaniaHQ checked Sep 14, 202611-5012 contacts →

Indirect evidence

“ALTAS IT stands at the forefront of critical infrastructure protection solutions, delivering cutting-edge security technology and services to businesses across the Baltics.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceVilnius, LithuaniaHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

“UAB „AVEDUS“ - sėkmingai nuo 2006 metų veikianti kibernetinio saugumo bendrovė.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceŽirmūnai, LithuaniaHQ checked Sep 14, 20261-108 contacts →

Indirect evidence

“We are an IT systems integrator with impeccable credentials.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceKaunas, LithuaniaHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

“DevSlate Group - Synchronized requirements DevSlate Group is a group of companies created to boost the innovation and development of products and solutions, fostering their export…”

Source: RevenueBase Database · checked Sep 14, 2026
7Strong evidenceKaunas, LithuaniaHQ checked Sep 14, 20261-102 contacts →

Strong evidence

“Full-Scale Managed Security Service Provider (MSSP) – Enterprise-Grade Cybersecurity & Compliance at Small Business Prices | Free NIS2 & ISO 27001 Audit”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceKaunas, LithuaniaHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Our company specializes in providing comprehensive cyber security and DAST (Dynamic Application Security Testing) solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceVilnius, LithuaniaHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Blanbu is a trusted partner for businesses looking to safeguard their critical assets and data against cyber threats.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceVilnius, LithuaniaHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Entryscope specializes in Threat Exposure Management.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 10 of 28 cybersecurity companies based in Lithuania

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Cybersecurity companies based in Lithuania at a glance

As of Sep 14, 2026
42.4%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
64.3%Largest-city concentration · Vilnius
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
6
51-200
2

Email recency for this list is measured worldwide rather than for Lithuania, so it is reported there. Company counts and contact totals on this page are exact for Lithuania, over 28 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 cybersecurity companies, 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 Lithuania whose own description of what they do matches “cybersecurity companies”. 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 cybersecurity companies), 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 cybersecurity companies, and records with no verified work email. Companies headquartered outside Lithuania 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, 115 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 14, 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

How many cybersecurity companies are in the directory?

The directory lists 28 cybersecurity companies based in Lithuania.

Which city has the most cybersecurity companies?

Vilnius is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 271 professional contacts and 115 email addresses for the listed cybersecurity companies.

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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.