Funded Cybersecurity startups in the US
Every company below filed a Form D with the SEC. Amounts are as reported on the filing, not estimates.
Updated Sep 29, 2026
- Companies
- 69
- Total raised
- $1.22B
- Filings
- 90
- Median round
- $2.6M
- States
- 21
CompanyStateCityLast filingLatest round
DefendifyAll-in-one cybersecurity tools for businesses
Maine
Portland
Sep 29, 2026
$6.5M
ProSentraContinuous cybersecurity program assessment for CISOs
Delaware
Wilmington
Jul 21, 2026
$50K
Kiken TechnoloigiesData loss prevention that tracks files after they leave
Indiana
Merrillville
Jul 17, 2026
$131K
GorillaOpsOne-click deployment of compliant cloud infrastructure
Delaware
Claymont
Jul 14, 2026
$160K
Cranium AISecurity and governance for enterprise AI systems
New Jersey
Short Hills
Jul 8, 2026
$20.0M
Secure IndustriesSecurity extension that locks down any standard browser
New York
New York
Jul 7, 2026
$12.7M
DataBahnPipeline that filters and routes security log data
Texas
Dallas
Jul 1, 2026
$35.0M
Refraction PointEndpoint detection, logs and automation for security teams
California
Covina
Jun 29, 2026
$2.1M
Proof of ActPre-launch Brooklyn, New York security company founded by…
New York
Brooklyn
Jun 27, 2026
$150K
WitFooSecurity event correlation and compliance reporting
Georgia
Dunwoody
Jun 26, 2026
N/A
Edera, Inc. / DEHypervisor isolation for Kubernetes containers
Washington
Seattle
Jun 25, 2026
$6.4M
WrynxOpen-weight AI models hardened against prompt injection
Delaware
Wilmington
Jun 17, 2026
$10K
AsignioPasswordless login by drawn signature and face check
Washington
Sedro Woolley
Jun 3, 2026
N/A
Trinsic TechnologiesOne API for accepting digital IDs and mobile licenses
Utah
West Jordan
Jun 2, 2026
$3.0M
IncalmoAI agents that red-team networks without an operator
California
Menlo Park
May 22, 2026
$8.7M
ThreatLockerApplication allowlisting and endpoint security
Florida
Orlando
May 20, 2026
$189.2M
LiongardAsset discovery and monitoring for managed IT providers
Texas
Houston
May 15, 2026
$3.5M
Hedy CyberStealth networking that hides traffic from detection
Ohio
Cincinnati
May 1, 2026
$850K
Autonomous CyberAI that runs cyber operations from plain-English commands
California
Sacramento
Apr 10, 2026
$2.5M
Ciphero AI TechnologiesSecurity monitoring and audit trails for enterprise AI use
New York
New York
Apr 9, 2026
$3.3M
Protocol 9Stealth-mode startup founded in 2025 in the San Francisco Bay…
California
Saratoga
Mar 31, 2026
$8.8M
Cloud Storage SecurityMalware scanning and data security for cloud storage
Utah
Sandy
Mar 30, 2026
$850K
Phin SecurityPhishing simulation and training for managed IT providers
Delaware
Wilmington
Mar 26, 2026
$6.0M
SocketMalware detection for open source dependencies
Delaware
Wilmington
Mar 19, 2026
$59.4M
XBowAI agents that run autonomous penetration tests
Washington
Seattle
Mar 16, 2026
$120.9M
Enclave AIAI agents that find and fix code and cloud vulnerabilities
Delaware
Dover
Mar 13, 2026
$5.9M
MetaCTFCapture-the-flag cybersecurity training for security teams
Virginia
Charlottesville
Mar 6, 2026
$1.0M
VsftVoice authentication and deepfake audio detection
Connecticut
Hartford
Mar 3, 2026
$449K
Solitude LabsZero-trust gateway for EV chargers, solar and batteries
Florida
West Palm Beach
Mar 2, 2026
$100K
KanukiVerified permission boundaries for AI agents
Delaware
Wilmington, New Castle County
Mar 1, 2026
$35K
APX SecurityAI pentesting agents that prove each exploit
Washington
Sammamish
Feb 20, 2026
$375K
Caspia TechnologiesSecurity linter for system-on-chip hardware designs
Florida
Gainseville
Feb 11, 2026
$5.0M
CloakedEmail and phone aliases that keep your real details private
New York
New York
Feb 9, 2026
$116.7M
RunsybilAI agent that runs continuous penetration tests
California
San Francisco
Jan 30, 2026
$30.0M
MyotaRansomware-resilient cyberstorage for business data
Pennsylvania
Blue Bell
Jan 13, 2026
$3.0M
AerobloxBlockchain asset registry for creators and businesses
Arizona
Sedona
Dec 30, 2025
$200K
QuantumSafe Data SystemsOne-time pad encryption for private enterprise networks
Massachusetts
Norwell
Dec 24, 2025
$263K
UncommonXNetwork asset discovery and cyber risk scoring
Illinois
Chicago
Dec 10, 2025
$1.5M
RIIG TechnologyRisk intelligence and cybersecurity company built around…
Virginia
Afton
Dec 8, 2025
$6.6M
Rilian TechnologiesU.S.-based, venture-backed cybersecurity and defense…
Virginia
McLean
Nov 25, 2025
$10.0M
7AIAI agents that investigate security alerts
Massachusetts
Boston
Nov 19, 2025
$130.6M
Forescout ParentAgentless discovery and security for networked devices
California
San Jose
Oct 13, 2025
$444K
Black Ark LabsAI-built cyber ranges from plain-language descriptions
Texas
San Antonio
Sep 29, 2025
$80K
Cognitive Network SolutionsEnterprise data backup and recovery
New Jersey
Ridgefield Park
Sep 19, 2025
N/A
Tennex NetworksWhile no information was found for a company named 'Tennex…
Washington
Woodinville, Washington, Unite
Aug 13, 2025
$70
CornamiComputing architecture for real-time encrypted data
Texas
Dallas
Jul 24, 2025
$1.4M
Command ZeroAutonomous cyber investigation for security teams
Texas
Austin
Jun 17, 2025
$5.0M
Atbash LabsTechnology company founded in 2022, located in Berkeley…
California
Berkeley
Apr 18, 2025
$4.0M
Crytica SecurityRapid malware detection across servers and devices
Nevada
Reno
Apr 10, 2025
$3.5M
Sentry SecureAccess control, alarms and video surveillance installation
Pennsylvania
West Chester
Apr 10, 2025
$4.0M
KeyStrikeRemote access security that verifies the local workstation
Delaware
Dover
Apr 9, 2025
$5.4M
CrunchAtlasCutting-edge cybersecurity firm that leverages artificial…
New Hampshire
Manchester
Apr 3, 2025
$50K
AuthmindIdentity threat detection across cloud and on-prem systems
Maryland
Bethesda
Mar 25, 2025
$1.7M
CorshaIdentity and access control for APIs and machines
Virginia
Vienna
Mar 7, 2025
$8.0M
Jo SolutionsCybersecurity and IT consulting for business and government
Texas
Pflugerville
Mar 5, 2025
$5.3M
VulnCheckReal-time exploit and vulnerability intelligence
Massachusetts
Lexington
Mar 5, 2025
$12.0M
CybrbaseCybersecurity assessment for small businesses
Virginia
Vienna
Mar 3, 2025
$300K
Integrity Partners CyberDedicated cybersecurity firm focused on delivering advanced…
Virginia
Reston
Mar 3, 2025
$8.4M
SafeIdentityDigital identity accreditation for healthcare
California
Fremont
Feb 24, 2025
$17.7M
UnikenMulti-factor authentication for fraud prevention
New Jersey
Chatham Township
Feb 4, 2025
$15.1M
BlockIDPasswordless authentication for enterprises
Florida
Miami
Jan 15, 2025
$11.0M
Veeam SoftwareBackup and recovery software for business data
Washington
Kirkland
Jan 14, 2025
$10.0M
IdentomatRemote ID verification with liveness checks
Illinois
Champaign
Jan 11, 2025
$1.0M
Sgnl.aiAccess control and authorization for enterprise systems
California
Palo Alto
Jan 10, 2025
$30.0M
Small StepAutomated certificate management for devices and services
California
Menlo Park
Nov 5, 2024
$295K
SymmatricsEncryption built on single-use symmetric keys
Virginia
Vienna
Oct 3, 2024
$11.7M
DryRun SecurityContext-aware security review of source code
Texas
Austin
Sep 30, 2024
$6.2M
ZeroPathAI code scanning that finds and patches vulnerabilities
California
San Francisco
Jun 17, 2024
$7.0M
RimstormTechnology-driven company specializing in providing tailored…
Virginia
Herndon
Dec 20, 2021
$315K
All 69 companies · most recent filing first
Most recent filings
69All 69 companies · most recent filing first