Best Cybersecurity Companies in Illinois, United States
The 131 best Cybersecurity companies in Illinois, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Secret Network.
Our analysis of 71 Cybersecurity companies
$12.5b in tracked funding; 100% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Cybersecurity companies in Illinois
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Secret Network Provider of privacy-preserving smart contracts and confidential computing layer for Web3 and AI applications | $412M | 53 mo ago | Series C | — | Tor Bair Co-Founder | GitBookNode.jsReact+13 | — | — |
| 2 | Coro Cybersecurity Threat detection and prevention solution over wifi and cellular networks | $255M | 26 mo ago | Series D | 150 | Dror Liwer Co-Founder | WordPressApple iCloud MailMicrosoft 365+48 | — | — |
| 3 | Paratek Provider of IoT platform | $118M | 210 mo ago | Acquired | — | Ralph Pini President and CEO | — | 2 patents Antibiotic minocycline derivatives for biodefense applications | — |
| 4 | Fingerprint Provider of device intelligence platform identifying web visitors and mobile devices | $77M | 33 mo ago | Series C | 112 | Valentin V Co-Founder & CTO | ReadMeZendeskApple iCloud Mail+26 | — | — |
| 5 | Keeper Security Offers web-based password manager solutions | $60M | 37 mo ago | Series D | 331 | Craig Lurey CTO | Apple iCloud MailGoogle WorkspaceMaterial Design Lite+28 | — | 1 launch · 1 award |
| 6 | Trustwave Provider of cybersecurity suite solutions | $60M | 146 mo ago | Acquired | 1,254 | — | HubSpot CMS HubApple iCloud MailTailwind CSS+19 | 70 patents Automated cyber incident response, threat hunting, and network security analytics platforms | — |
| 7 | Credant Endpoint data protection solution | $46M | 207 mo ago | Acqui-Hired | 100 | Andrew Kahl SVP & Co-Founder | — | 17 patents Automated cybersecurity policy management and continuous credential synchronization for enterprise access control | — |
| 8 | SpiderOak Provider of zero-trust security solutions for data protection and access control | $35M | 37 mo ago | Series C | 29 29 → 22 (-24%) | Dave Pearah CEO | WordPressApple iCloud MailMicrosoft 365+37 | 56 patents Secure distributed communication protocols and blockchain-based access control for aerospace networks. | — |
| 9 | NowSecure Mobile application security solutions provider | $28M | 48 mo ago | Series B | 83 83 → 103 (+24%) | Andrew Hoog Founder/Board Member | WordPressApple iCloud MailGoogle Workspace+30 | — | 1 launch |
| 10 | Revenera Provider of software monetization, installation, and compliance solutions for businesses | $18M | 177 mo ago | Series B | 187 | — | DrupalSentryAtlassian Statuspage+30 | — | — |
| 11 | Network Perception Network access policy tool-based security analytics | $16M | 49 mo ago | Acquired | 60 | — | WebflowVimeoHubSpot+17 | — | — |
| 12 | Inxpo Enterprise video communication solution | $14M | 100 mo ago | Acquired | 115 | — | — | 5 patents Patents concentrated in computing, sensing & instrumentation | — |
| 13 | oak9 Provider of cloud and devops security solutions | $14M | 47 mo ago | Acqui-Hired | 50 | Aakash Shah CTO | — | — | — |
| 14 | Empirical Security Provider of AI model security solutions | $12M | 21 mo ago | Series B | — | Michael Roytman Co-Founder & CTO | SanityNode.jsReact+15 | — | 2 launchs |
| 15 | Sarvega Offering firewall security solution | $10M | 276 mo ago | Acqui-Hired | — | Chris Darby CEO | — | 2 patents XML streaming parsing and XSLT-based transformation engine technologies | — |
| 16 | Neurensic Regulatory compliance using Artificial Intelligence | $9M | 111 mo ago | Acqui-Hired | 186 | — | — | — | — |
| 17 | Compliance11 Compliance software for financial services | $7M | 182 mo ago | Public | 26 | Tad Mitchell Ex-President & CEO | — | — | — |
| 18 | Accertify Fraud prevention tools for businesses | $7M | 193 mo ago | Acquired | 310 | Mark Michelon CEO & President | WordPressSentryApple iCloud Mail+21 | 12 patents Secure communication pathways and device identification/categorization for network security. | 1 internship · 1 launch |
| 19 | Mask Network Provider of encrypted messaging applications | $5M | 62 mo ago | Series A | 66 | Suji Yan Founder & CEO | DiscourseRubyRuby on Rails+10 | — | — |
| 20 | Versafe Cloud-based anti-fraud & anti-phishing protection | $5M | 168 mo ago | Acqui-Hired | — | Eyal Gruner Co-Founder | — | — | — |
| 21 | Rippleshot Provider of AI-driven banking fraud analytics and detection platform solutions | $5M | 94 mo ago | Series A | 10 10 → 13 (+30%) | Yueyu Fu Co-Founder | Webflowcore-jsSwiper+16 | — | — |
| 22 | ThirdPartyTrust SaaS solution for security and vendor risk management | $5M | 77 mo ago | Acquired | 59 | — | — | — | — |
| 23 | Parlano Team collaboration and messaging platform | $4M | 260 mo ago | Acquired | 11 | — | — | 11 patents Real-time enterprise information flow and collaborative workflow management platforms | — |
| 24 | Haystax AI-based incident response and management platform | $4M | — | Acquired | 355 | — | — | — | — |
| 25 | Cog Systems Virtualization & system hardening based embeddable IoT security | $4M | 90 mo ago | Acquired | 18 | Laura McCann-Nerup Co-Founder | — | — | — |
| 26 | Identomat Provider of AI-powered identity verification and KYC/AML compliance platform | $3M | 17 mo ago | Seed | 32 | Zurab Kotaria Co-Founder & COO | Webflow EcommerceWebflowZoho+21 | — | — |
| 27 | Cohesive Networks Cloud networking and security products | $3M | 228 mo ago | Series A | 18 | Patrick Kerpan CEO | — | — | — |
| 28 | Winston Privacy Provider of VPN solutions for protection from spying and identity theft | $3M | 77 mo ago | Seed | 9 | — | — | 12 patents Network security and privacy enforcement through endpoint identification and rate‑limiting mechanisms | — |
| 29 | Promisec Agentless endpoint security solution for compliance, management, and threat detection | $2M | 242 mo ago | Series A | 31 | — | — | — | — |
| 30 | quicklaunchsso.com SSO application for one-click login to enterprise apps across multiple devices | $2M | 141 mo ago | Series A | — | Katie Winings Founder | JavaBootstrapApache Tomcat+8 | — | — |
| 31 | Ilantus SSO based IAM solutions for in-premise & cloud enterprise network | $2M | 237 mo ago | Seed | 35 35 → 55 (+57%) | — | WordPressMySQLPHP+29 | — | — |
| 32 | Moonshado Mobile Messaging Aggregator | $1M | 177 mo ago | Deadpooled | — | Patty Mayer Founder | — | — | — |
| 33 | MessageControl Email security and anti-spymail solution | $1M | — | Acquired | 16 | Paul Everton Founder | — | — | — |
| 34 | HACKERverse Provider of software tools for cybersecurity testing | $120K | 24 mo ago | Seed | — | Craig Ellrod Founder & CTO | — | — | — |
Top 12 Cybersecurity companies in Illinois
#1
Series D · Chicago, Illinois · founded 2014 · 150 employees$255Mraised▾
Threat detection and prevention solution over wifi and cellular networks. The platform offers software that detects, and analyzes in real time any threats or attacks that are present in the vicinity of the device, and prevent the device from connecting to the malicious cellular or Wifi Access points. Its offline learning machine uses the collected data from the devices, publicly available data, and data from the attack lab to construct the algorithms that the client software uses. The dashboard helps to define key field behaviors, roles and responses and to visualize the current threat levels, by geography, device, or role on a real time threat map.
- Mar 2024Series D$100M
- Apr 2023Series C$75M
- Jul 2022Series C—
- Apr 2022Series C$80M
#2
Seed · Champaign, Illinois · founded 2019 · 32 employees$3.2Mraised▾
Provider of AI-powered identity verification and KYC/AML compliance platform. The platform offers identity verification using government-issued identification, biometric data, and authoritative sources. It facilitates video-based verification, AML screening, business verification, and age verification. The platform includes modules for ID verification, liveness detection, face matching, and address verification, along with KYC/CDD questionnaires and NFC verification.
- Jan 2025Seed$1M
- Jan 2022Seed$3.2M
#3
Series B · Chicago, Illinois · founded 2024$11.9Mraised▾
Provider of AI model security solutions. It is a provider of cyber security solutions that utilize mathematical models to analyze and optimize security data, enabling organizations to proactively anticipate and prevent security threats.
- Aug 2024Series B$11.9M
#4
Series C · Chicago, Illinois · founded 2019 · 112 employees$77Mraised▾
Provider of device intelligence platform identifying web visitors and mobile devices. The platform helps determine user intentions, identify good and bad visitors, and stop fraud. It offers account takeover prevention, payment fraud reduction, and SMS fraud prevention. The platform also detects malicious bots and automation tools. It provides signals for VPN detection, IP geolocation, and browser bot detection.
- Sep 2023Series C$33M
- Nov 2021Series B$32M
- Feb 2021Series A$8M
- Oct 2020Series A$4M
#5
Series C · Northbrook, Illinois · founded 2007 · 29 employees$35Mraised▾
Provider of zero-trust security solutions for data protection and access control. It offers tools to embed access control, data protection, and secure messaging into systems. The company provides transport-agnostic, quantum-resilient data exchange with topic-level data segmentation. Fine-grained, identity-based access control is available for data, endpoints, and applications. Programmable policy management is adaptable to operational workflow. The architecture is designed for decentralized deployment from cloud to edge.
- May 2023Series C—
- Jan 2023Series C$16.4M
- Dec 2019Series B$7.1M
- Oct 2017Series B$1.5M
#6
Series C · Chicago, Illinois · founded 2020$411.5Mraised▾
Provider of privacy-preserving smart contracts and confidential computing layer for Web3 and AI applications. It provides first mainnet blockchain with end-to-end encrypted smart contracts, enabling decentralized apps with institutional-grade data privacy through Trusted Execution Environments (TEE). It serves as Web3's confidential computing hub, supporting private tokens, bridges for token privacy across chains, scalable DeCC infrastructure, and emerging Secret AI layer for secure GPU/LLM workloads—featuring Merkle proofs, threshold encryption, EVM interoperability, and Cosmos SDK upgrades for cross-chain privacy applications.
- Jan 2022Series C$400M
- May 2021Series B$11.5M
#7
Series D · Chicago, Illinois · founded 2009 · 331 employees$60Mraised▾
Offers web-based password manager solutions. It develops a mobile app that helps consumers to protect and manage their passwords and private information. The app uses military-grade advanced encryption standards, key storage, double-encrypted syncing, and two-factor authentication. It also features an admin console for managing keeper group users, devices, and permissions.
- May 2023Series D—
- Aug 2020Series C$60M
#8
Series B · Chicago, Illinois · founded 2009 · 83 employees$27.5Mraised▾
NowSecure is a mobile application security solutions provider. It provides BYOD security for the enterprise and provides risk ratings at the device and group levels, offers push notifications of new risks in real-time. It also provides analytic engines that are fully customizable and deployable on-prem or as a cloud model. It also provides an app testing suite for developers, and a mobile security app for consumers to keep their mobile device and data secure. The clients of the company include Uber, Robot, Humana, Rakuten, etc.
- Jun 2022Conventional Debt—
- Jun 2019Series B$15M
- Dec 2014Series A$12.5M
- Aug 2014Seed—
#9
Acquired · Champaign, Illinois · founded 2013 · 60 employees$15.7Mraised▾
Network access policy tool-based security analytics. It provides firewall audits by performing an automated and comprehensive network path analysis. It performs a network path analysis from firewall and router configurations to determine connectivity, and identify the deviation of implementation from security policies, standards, and best practices.
- May 2022Series A$13M
- Apr 2022Seed$18K
- Dec 2020Seed$2.7M
- Sep 2015Grant (prize money)$727.1K
#10
Acqui-Hired · Chicago, Illinois · founded 2019 · 50 employees$13.9Mraised▾
Provider of cloud and devops security solutions. The platform offers security solutions for developers and security engineers. Its features include application security design, threat modeling, infra-as-a-code security, security checks, automated security design management, security design enforcement management, change management, and more. It enables users to access the software via subscription-based pricing module.
- Jun 2022Series A$8M
- Jun 2021Seed$5.9M
#11
Acquired · Hoffman Estates, Illinois · founded 1998$118Mraised▾
BlackBerry provides an IoT platform for endpoint security. The company uses machine learning and predictive AI to adapt a security policy based on user location, device, and other factors. It provides AI-driven prevention for all endpoints.
- Dec 2008Series E$20M
- Nov 2007Series D$15M
- May 2005Series C$17.5M
- Jan 2004Series B$15M
#12
Seed · Chicago, Illinois · founded 2021$120Kraised▾
Provider of software tools for cybersecurity testing. It is an AI-powered platform that enables software vendors to create proof of concepts for cybersecurity solutions, by the evaluation of tools and comparison. The platform uses artificial intelligence to automate the POC process, making it a resource for cybersecurity professionals.
- 2024Seed$120K
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
How research on Cybersecurity in Illinois is moving
A read on the academic research around Cybersecurity in Illinois — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 81 papers.
University of Illinois Urbana-Champaign and Illinois Institute of Technology lead Illinois cybersecurity research, focusing dominantly on network security and malware detection, with an optimistic breakthrough-heavy tone.
- University of Illinois Urbana-Champaign38
- Illinois Institute of Technology13
- Southern Illinois University Carbondale13
- Western Illinois University5
- University of Illinois Chicago4
- Network security14
- Intrusion detection system13
- Computer security10
- Scalability5
- Task (project management)3
- Intrusion detection system1→4
- Computer security13
- Network security6
- Malware3
- Data sharing3
- Information sharing3
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.