Best Cybersecurity Companies in Tennessee, United States
The 31 best Cybersecurity companies in Tennessee, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: otto.
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 Tennessee
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | otto Third party JavaScript security solutions for websites | $280M | 111 mo ago | Series D | Josh Summitt Cissp Ceh Gpen Grem Co-Founder and CTO | 2017 | — | 14 patents Residential smart door lock assemblies and access control hardware | — |
| 2 | Digital Reasoning AI-based consumer behavior analysis for banks and financial institutions | $128M | 81 mo ago | Acqui-Hired | — | 2000 | — | 57 patents Patents concentrated in computing, sensing & instrumentation | — |
| 3 | Snowflake Technologies Identity verification solution provider using vein pattern recognition (VPR). | $8M | 244 mo ago | Deadpooled | Jim Phillips Founder & Chairman | 2005 | — | 2,411 patents Secure, scalable cloud data warehousing with advanced query sharing and virtualization | — |
| 4 | Sertainty Data security solution | $3M | 129 mo ago | Series A | Greg Taylor CEO | 2012 | — | 17 patents Secure data encryption, policy enforcement, and media codec/container technologies | — |
| 5 | Ncontracts Provider of integrated software for governance, risk, and compliance management | $250K | 138 mo ago | Acquired | Michael Berman Founder & CEO | 2009 | HubSpot CMS HubSentryApple iCloud Mail+35 | — | — |
| 6 | Clearwater Provider of cyber security services for health care industry | — | 13 mo ago | Seed | Steve Cagle CEO | 2009 | WordPressApple iCloud MailMicrosoft 365+17 | 129 patents Modular electromagnetic flux machines and advanced energy storage systems. | — |
| 7 | Cloud Range Cybersecurity training and simulation platform | — | 31 mo ago | Seed | Debbie Gordon Founder & CEO | 2018 | Cart FunctionalitySquarespace CommerceSquarespace+26 | — | — |
| 8 | CyberMaxx Offering cyber security suite solutions | — | 62 mo ago | Late Stage | Thomas Lewis Co-Founder | 2009 | WordPressMySQLPHP+31 | — | — |
Top 8 Cybersecurity companies in Tennessee
#1
Acqui-Hired · Franklin, Tennessee · founded 2000 · 97 employees$128.2Mraised▾
AI-based consumer behavior analysis for banks and financial institutions. Its offering includes voice surveillance, employee communication analytics, healthcare automation for cancer detection, trading insight, and more.
- Jan 2020Series D$20M
- Sep 2019Series D—
- Feb 2019Series D$30M
- Mar 2018Series D$30M
#2
Series D · Memphis, Tennessee · founded 2017 · 9 employees$280.3Mraised▾
Third party JavaScript security solutions for websites. It provides a platform that controls code, manages, monitors, and protects third party code applications. The features of the software include live in browser testing, multiple browser compatibility, integration with technology stacks, and real time protection for advertisements, iFrames, and tags.
- Aug 2017Series D$280.2M
- May 2017Seed$68.8K
#3
Deadpooled · Memphis, Tennessee · founded 2005$8Mraised▾
Snowflake Technologies, a subsidiary of Luminetx Corporation, leverages its parent company’s vein-imaging expertise to offer a fast, user-friendly, low- maintenance, hygienic, and virtually fraud-proof method for verifying identity. It has developed a device to verify an individual's identity by reading vein patterns in the palms of people’s hands. Luminetx was acquired by Christie Digital Systems USA on January 7, 2010.
- Jul 2006Series A$6M
- Seed$2M
#4
Series A · Nashville, Tennessee · founded 2012 · 20 employees$3Mraised▾
Sertainity provides data security solution. The solution offered by the company provides protection to the unstructured data. It allows the user to govern and control access to the data.
- Jan 2016Series A$3M
#5
Acquired · Brentwood, Tennessee · founded 2009 · 300 employees$250Kraised▾
Provider of integrated software for governance, risk, and compliance management. The software offers tools for enterprise risk, vendor, and compliance management. It also includes features for business continuity, internal audit, and cybersecurity assessment. The platform provides solutions for banks, credit unions, mortgage lenders, and fintech companies.
- May 2015Series A—
- Apr 2010Seed$250K
#6
Seed · Nashville, Tennessee · founded 2009 · 216 employees—raised▾
Provider of cyber security services for health care industry
- Oct 2025Seed—
- Jan 2018Seed—
#7
Seed · Tennessee · founded 2018 · 23 employees—raised▾
CloudRange provides cybersecurity training and simulation platform. It can be used for training IT and cybersecurity professionals, assessing incident response processes, and testing new technologies. It also includes SOC, SIEMs, firewalls, intrusion detection system, endpoint security systems, and analysis tools. The company also provides service for cyber awareness training, red team/blue team exercise, SOC analyst candidate assessment, and SOC team/individual training.
- Mar 2024Seed—
#8
Late Stage · Nashville, Tennessee · founded 2009 · 55 employees—raised▾
Offering cyber security suite solutions
- Aug 2021PE—
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
What Tennessee researches in cybersecurity
- Tennessee Technological University10
- University of Tennessee at Chattanooga5
- East Tennessee State University4
- University of Tennessee at Knoxville3
- Tennessee State University3
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.