Company lists · Data refreshed September 2026

Top 24 Cybersecurity firms based in Taiwan

RevenueBase identified 55 cybersecurity firms headquartered in Taiwan as of September 2026 and tracks 888 professional contacts across them, including 180 with verified work emails. Taipei is the largest hub.

This list covers cybersecurity firms headquartered in Taiwan, 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 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
55Companies
888Contacts tracked
180Verified emails
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The 24 largest cybersecurity firms based in Taiwan

Ranked by team size
Top 24 of 55 cybersecurity firms based in Taiwan, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity 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
1Indirect evidenceTaipei Taipei, TaiwanHQ checked Sep 14, 2026201-500135 contacts →

Indirect evidence

“Founded in 2017, CHT Security (TWSE: 7765) is a subsidiary company of Chunghwa Telecom, the largest ISP in Taiwan.”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidence台北市, TaiwanHQ checked Sep 14, 202651-200122 contacts →

Indirect evidence

“Acer Cyber Security Inc.(ACSI) is founded in We provide professional digital information management services for businesses.”

Source: RevenueBase Database · checked Sep 14, 2026
3Strong evidenceNew Taipei City, TaiwanHQ checked Sep 14, 202651-200107 contacts →

Strong evidence

“Vision: Our vision is to transform cybersecurity into the most fulfilling job in the world and see every cyber defender fulfill their full potential.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidence台北, TaiwanHQ checked Sep 14, 202651-20061 contacts →

Indirect evidence

“GAIA // 7/24 /-2025/ Google Cloud MSSP -2024/ Google Cloud Security Specialization -2023/ Elite Distributor -2022/-2021/ Crowdstrike MSSP -2021/ Kubernetes CNCF KCSP -2020/…”

Source: RevenueBase Database · checked Sep 14, 2026
5Strong evidenceNew Taipei City, TaiwanHQ checked Sep 14, 202651-20056 contacts →

Strong evidence

“Onward Security, a DEKRA company, provides IoT cybersecurity compliance solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
6Strong evidence台北市, TaiwanHQ checked Sep 14, 202611-5032 contacts →

Strong evidence

“DEVCORE is the first cybersecurity company to launch "Red Team Assessment" in Taiwan, composed of world-class white hat hackers and experts with hacking skills and hacker mindset.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceTaipei, TaiwanHQ checked Sep 14, 202651-20015 contacts →

Indirect evidence

“2004 UGuard®G-Expert®”

Source: RevenueBase Database · checked Sep 14, 2026
8Strong evidence台北市, TaiwanHQ checked Sep 14, 202611-5015 contacts →

Strong evidence

“Leukocyte-Lab We don't just build BAS (Breach and Attack Simulation); we create AI-driven Validation-as-a-Service (AI-VaaS)-making cybersecurity validation faster, smarter, and…”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidence臺北市, TaiwanHQ checked Sep 14, 202651-20014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidence台北市, TaiwanHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidence台北市, TaiwanHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceCity, TaiwanHQ checked Sep 14, 202611-5013 contacts →

Indirect evidence

“iSecurity was established in early 2004, the founders were the senior staff of the financial business group of the Institute for Information Industry iSecurity provides the most…”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceTaiwanHQ checked Sep 14, 2026n/a12 contacts →

Strong evidence

“Trend Micro, a global leader in cybersecurity, helps make the world safe for exchanging digital information.”

Source: RevenueBase Database · checked Sep 14, 2026
14Strong evidenceCity, TaiwanHQ checked Sep 14, 202611-509 contacts →

Strong evidence

“CTOne, a global cybersecurity leader in communication technology/ a subsidiary of Trend Micro, with over 30 years of experience in information technology (IT) security inherited…”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidence台中, TaiwanHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidenceTaichung City, TaiwanHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

“We are a team of hotshot hackers coming into existence from the center of Taiwan for information security and endeavor to envision the world.”

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidence台北市, TaiwanHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

“Omni Intelligent Services was established in 2014, We act as a leading global provider for cloud-based security products.”

Source: RevenueBase Database · checked Sep 14, 2026
18Strong evidenceTaipei, TaiwanHQ checked Sep 14, 20261-108 contacts →

Strong evidence

“REEKON is a cybersecurity company that provides training, consulting, testing, and certification services to help clients with their cybersecurity needs.”

Source: RevenueBase Database · checked Sep 14, 2026
19Strong evidenceZhongshan District, TaiwanHQ checked Sep 14, 202611-508 contacts →

Strong evidence

“Deeply Rooted in World-Class Cybersecurity Solutions - Dedicated to Designing the Most Suitable Security Architecture and Systems for Our Clients - Experts in Email and Cloud…”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceTaipei City, TaiwanHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“iForensics Digital specializes in digital forensics investigation.”

Source: RevenueBase Database · checked Sep 14, 2026
21Strong evidenceTaipei, TaiwanHQ checked Sep 14, 20261-106 contacts →

Strong evidence

“We are nextJen Technologies, and we have been devoted in developing high-quality cybersecurity and managed IT solution to helps businesses improve their performance more…”

Source: RevenueBase Database · checked Sep 14, 2026
22Strong evidenceZhong Zheng Qu, TaiwanHQ checked Sep 14, 20261-105 contacts →

Strong evidence

“CyberSecThreat, headquartered in Taiwan, is a Cybersecurity solutions provider that offers cutting-edge Cybersecurity solutions including Cyber Threat Intelligence (CTI), Security…”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceNew Taipei City, TaiwanHQ checked Sep 14, 202611-502 contacts →

Indirect evidence

“ArcRan is a company focused in IoT, V2X, and 5G security.”

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceTaiwanHQ checked Sep 14, 202611-502 contacts →

Indirect evidence

“Infoarchi is a company that provides information security products and consulting services, located at 9F-1, No.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 24 of 55 cybersecurity firms based in Taiwan

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Cybersecurity firms based in Taiwan at a glance

As of Sep 14, 2026
20.3%Verified-email coverage
16.1Average contacts per company
11-50Median size (employees)
14.5%Largest-city concentration · Taipei
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
26
51-200
12
201-500
2
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Taiwan, so it is reported there. Company counts and contact totals on this page are exact for Taiwan, over 55 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 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 Taiwan whose own description of what they do matches “cybersecurity 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 cybersecurity 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 cybersecurity firms, and records with no verified work email. Companies headquartered outside Taiwan 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, 180 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

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 cybersecurity 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 cybersecurity firms are there based in Taiwan?

RevenueBase identified 55 cybersecurity firms headquartered in Taiwan 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?

CHT Security 中華資安國際, headquartered in Taipei Taipei, tops this list with the largest team on record.

Which city has the most cybersecurity firms?

Taipei leads with 8 headquartered companies, followed by Taipei City (8) and New Taipei City (5).

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 180 verified decision-maker contacts tracked across these 55 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 14, 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.