Best Cybersecurity Companies in Japan
The 105 best Cybersecurity companies in Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Eaglys.
Japan's cybersecurity sector is smaller than the headlines suggest, and this directory ranks the best cybersecurity companies operating in Japan by disclosed equity funding and recent momentum. We're tracking 105 companies here, with a combined disclosed total of $271M. Eaglys leads the pack at $57M raised, Micoworks follows at $29M, and TRUSTDOCK has pulled in $23M. No unicorns yet. But the global market these companies are competing inside is serious: researchers forecast the cybersecurity market growing at a 10.99% CAGR, driven by tightening government regulations and the sheer depth of internet dependency across enterprise. Japan's regulatory environment is tightening in step with that global pressure, which is pushing corporate buyers to move faster than they'd like.
So what's actually hot right now? The sector themes that are pulling attention and capital this quarter lean hard into AI-era threat surfaces. OpenAI's new cybersecurity action plan signals that the biggest players are treating intelligence-layer security as a distinct category, not a feature. For you as an investor or operator scanning this directory, the relevant read is that Japan's funded cohort is still early-stage and fragmented, with most companies well below $30M raised. Backers like Coral Capital, SBI Investment, and Mitsubishi UFJ Capital are the names showing up most consistently. The gap between Japan's local funding scale and the global market opportunity is the story this quarter.
Our analysis of 174 Cybersecurity companies
$16.2b in tracked funding; 96% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Cybersecurity companies in Japan
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Eaglys Offering encryption data solutions | $57M | 55 mo ago | — | Yusuke Maruyama Co-Founder | — | — | 41 patents Secure data production, sharing, and conversion platforms enabling privacy-preserving machine learning. | — |
| 2 | ABEJA Provider of digital platforms, AI solutions, and DX support services | $46M | 90 mo ago | 81 | Yousuke Okada Founder & CEO | Apple iCloud MailGoogle WorkspaceNode.js+28 | Top 5M | 9 patents Patents concentrated in computing, sensing & instrumentation | — |
| 3 | Micoworks Provider of enterprise communication management solution | $29M | 29 mo ago | — | Daiju Matsumoto Founder | WordPressApple iCloud MailGoogle Workspace+24 | Top 5M | — | — |
| 4 | TRUSTDOCK API-based platform offering KYC and identity management solutions for banks and financial institutions | $23M | 37 mo ago | 50 | — | — | — | — | — |
| 5 | Blue Planet-works Provider of isolation technology based endpoint security solution | $22M | 81 mo ago | 15 | — | SalesforceNginxAmazon Web Services+23 | Top 5M | — | — |
| 6 | QUADRAC Payment security and authentication solutions | $16M | 71 mo ago | — | Masayuki Takada CEO | WordPressMySQLPHP+12 | Top 10M | 50 patents Contactless public‑transport ticketing, fare settlement, and digital signature processing systems. | — |
| 7 | Arithmer Provider of AI-based chatbot development solutions | $14M | 71 mo ago | 30 | Ryuichi Inui Managing Director | Cart FunctionalityWix eCommerceWix+17 | Top 10M | 27 patents AI-driven monitoring, data analytics, and automated picking for manufacturing and logistics | — |
| 8 | Authlete Provider of APIs for OAuth 2.0 and OpenID Connect servers | $8M | 38 mo ago | 22 | — | HugoWistiaBootstrap+20 | Top 5M | — | 2 launchs |
| 9 | SpiderAF Provider of platform protecting marketing from fraud and security risks | $8M | 56 mo ago | 46 | Satoko Ohtsuki Founder & CEO | WebflowAmazon Web ServicesGoogle Ads+30 | Top 5M | — | — |
| 10 | aironworks AironWorks develops a cybersecurity training platform for countering social engineering and targeted attacks. | $6M | 21 mo ago | 11 | — | WordPressMySQLPHP+32 | Top 50M | — | — |
| 11 | Cacco Remittance fraud detection, settlement consulting and statistical analysis | $5M | 120 mo ago | 49 | Hiroyuki Iwai Founder & CEO | WordPressMySQLPHP+24 | Top 500k | — | — |
| 12 | ZenmuTech Obfuscation, fragmentation, and encryption-based data security | $5M | 91 mo ago | — | Taguchi Yoshikazu CEO & President | WordPressMySQLPHP+21 | Top 5M | 26 patents Network access control and log management for telecom and data processing devices | — |
| 13 | Nextremer Provider of AI development services | $5M | 106 mo ago | 14 | Hisahiro Mukai CEO | HubSpot CMS HubApple iCloud MailGoogle Workspace+12 | Top 10M | — | — |
| 14 | Yesod Platform offering federated identity management solutions | $4M | 30 mo ago | 6 | Hideyuki Takeuchi CEO | STUDIOSentryApple iCloud Mail+23 | Top 10M | — | — |
| 15 | NodeX Communication platform for companies | $4M | 15 mo ago | 6 | Masayoshi Mitsui Founder & CEO | — | — | — | 1 job opening |
| 16 | OneBe Provider of managed security services | $4M | 175 mo ago | 8 | — | NginxCloudflareTwitter Ads+11 | Top 5M | — | — |
| 17 | Talknote Intra organisation collaboration service | $3M | 152 mo ago | 10 | Haruo Koike Owner & CEO | WordPressMySQLPHP+28 | Top 5M | — | — |
| 18 | Ai Security Lab Cloud based vulnerability assessment solutions | $3M | 52 mo ago | 23 | Ayumu Aoki CEO | — | — | — | 2 launchs |
| 19 | NORMEE Provider of mobile-based biometric authentication solutions | $3M | 72 mo ago | — | Eisabu Iwata CEO | — | — | 11 patents Secure biometric personal authentication devices and methods for identity verification. | — |
| 20 | KEKKAI Web3 security plugin that detects danger by analyzing transaction simulation | $2M | 28 mo ago | 3 | Duma Danny Founder & CEO | Node.jsFirebaseEmotion+10 | Top 50M | — | — |
| 21 | atena Provider of a virtual postal mailbox | $2M | 69 mo ago | — | Kitagata Yuki Co-Founder | — | — | — | — |
| 22 | Capy Javascript & python based freestyle puzzle captcha for authentication | $2M | 105 mo ago | 15 | Mitsuo Okada Co-Founder and CEO | RubyGoogle MapsUbuntu+18 | Top 10M | 4 patents CAPTCHA generation/verification and related information-processing security methods | — |
| 23 | Meety Online interviewing platform provider | $2M | 51 mo ago | 10 | — | — | — | — | — |
| 24 | Unveillance Cloud-based data leak intelligence platform for incident response | $632K | 133 mo ago | 11 | Karim Hijazi ex-CEO | — | — | — | — |
| 25 | Sweep Cloud-based invoice management software | $617K | 68 mo ago | 33 | — | — | — | — | — |
| 26 | Gamba Employee communication and reporting tool | $600K | 143 mo ago | — | Masahiro Morita CEO & President | WordPressMySQLPHP+32 | Top 5M | — | — |
| 27 | Vidbase Online platform offering video content management solutions | $546K | 44 mo ago | — | Kento Yoshida CEO | — | — | — | — |
Top 12 Cybersecurity companies in Japan
#1
Seed · Minato City, Tokyo · founded 2019 · 6 employees$4Mraised▾
Communication platform for companies. It is an open-source toolkit that enables secure messaging between devices, including IoT, microservices, and on-premise servers. It optimizes throughput in web applications through its event-driven architecture.
- Mar 2025Seed$4M
#2
Series A · Tokyo, Tokyo · founded 2021 · 11 employees$5.7Mraised▾
Developer of a phishing prevention platform designed to protect people and teams with AI. The company's platform offers ultra-practical cyber security training that uses technology researched and developed in Israel to improve the essential security level, enabling businesses to protect against cyber threats and phishing.
#3
Series B · Osaka, Osaka · founded 2017$28.7Mraised▾
Provider of enterprise communication management solution
#4
Series A · Tokyo, Tokyo · founded 2017 · 50 employees$22.7Mraised▾
API-based platform offering KYC and identity management solutions for banks and financial institutions. It offers multiple solutions including eKYC, call tracker, identity confirmation API service, personal number acquisition APIs, AML checks, and mailing APIs. It features AML and PEPs risk confirmation, account information confirmation, fraud prevention, and more.
- May 2023Series A$11M
- Jun 2021Series A$11.7M
- May 2019Seed—
#5
Series B · Shibuya, Tokyo · founded 2016$56.6Mraised▾
Offering encryption data solutions. Securing data through the application of advanced encryption technologies, so users can access vast quantities of data while ensuring total confidentiality and compliance with privacy regulations. They convert users existing databases to an always encrypted format, provide AI models that operate over always-encrypted data, and offer Data Scientists controlled and secure access to critical information.
- Nov 2021Series B$40M
- May 2020Series A$12M
- Jan 2019Seed$4.7M
#6
Series A · Chiyoda City, Tokyo · founded 2018 · 6 employees$4.1Mraised▾
Platform offering federated identity management solution. Users account information is automatically acquired from their SaaS. Centrally manage accounts and strengthen by SaaS control. By centralizing information, they reduce coordination mistakes and rework between personnel.
- Dec 2023Series A$4.1M
#7
Series A · Chiyoda City, Tokyo · founded 2015 · 22 employees$8.3Mraised▾
Provider of APIs for OAuth 2.0 and OpenID Connect servers. The APIs facilitate integration of core functions with user authentication, management services, and API gateways. The company's architecture supports integration with various programming languages. It offers solutions for open banking, payments, media, SaaS, healthcare, and e-commerce.
- Apr 2023Series A$4M
- Feb 2018Seed$3M
- May 2017Seed$1.3M
#8
Seed · Tokyo, Tokyo · founded 2022 · 3 employees$1.9Mraised▾
Web3 security plugin that detects danger by analyzing transaction simulation. It enables transaction analysis, danger detection, and scam site detection functions to isolate dangers and protect users' safety from multiple angles.
- Jan 2024Seed$1.5M
- Feb 2023Seed$371.2K
#9
Public · Minato City, Tokyo · founded 2012 · 81 employees$45.5Mraised▾
Provider of digital platforms, AI solutions, and DX support services. The company delivers digital platforms that transform core business processes for sustained revenue growth. It offers software for continuous and stable operation of DX processes. The business also provides retail analytics services based on customer behavior data. Additionally, it supports business implementation of large language models and AI ethics consultation.
- Dec 2018Series C—
- Jun 2018Series C$38.5M
- Jul 2016Series B$7M
- Dec 2014Series A—
#10
Series C · Minato City, Tokyo · founded 2009$15.8Mraised▾
QUADRAC provides payment security solutions for businesses. It offers payment authentication hardware for transaction monitoring. It offers a Q-CORE server for cloud-based digital payments, traffic payments, and authentication.
- Jul 2020Series C$11.2M
- Oct 2018Series B$8.9M
- Jul 2014Series A$6.9M
#11
Series B · Minato City, Tokyo · founded 2011 · 46 employees$7.9Mraised▾
Provider of platform protecting marketing from fraud and security risks. It offers solutions for ad fraud protection, fake lead protection, affiliate fraud protection, and website security. The platform detects fraudulent clicks, identifies risky scripts, prevents fake leads, and safeguards affiliate campaigns. It provides tools for digital marketers and website managers to improve performance and maintain control.
- Oct 2021Series B$5M
- Nov 2019Series A$2.9M
#12
Series A · Shibuya, Tokyo · founded 2017 · 15 employees$21.7Mraised▾
Blue Planet-works provides an Isolation technology-based endpoint security solution. The products offered by the company are AppGuard, AppGuard Server, and Trustica. AppGuard leverages application whitelisting, threat isolation and secure OS to provides security to endpoints. AppGuard server provides security to servers from SQL injection attacks and worm attacks.
- Sep 2019Series A$21.7M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Cybersecurity coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.