Rain Capital
Venture capitalBellevue Β· Pre-SeedβSeries A Β· 8 people tracked
Investment thesis
Rain Capital invests at the pre-seed, seed, and Series A stages, backing companies through their earliest critical growth phases. The firm focuses on three converging and compounding domains: AI, cybersecurity, and healthtech. It views AI as an accelerant of innovation, cybersecurity as the layer protecting intelligent systems, and healthtech as the application of both to improve human outcomes. Sourcing is expert-led and community-assisted, leveraging relationships with exceptional founders and leading academic institutions to identify opportunities early.
Source: firm website, verified Aug 3, 2026.
Team Β· 8 people
from the firm's websiteFounder and General Partner of Rain Capital, a noted cybersecurity investor, Fortune 500 board member, and former Carnegie Mellon professor.
CISO at Atlassian and former CISO of Oracle Cloud; an angel investor and U.S. Navy veteran.
Carnegie Mellon professor, Chief AI Officer at Bugcrowd, and founder of Mayhem.
An experienced multi-stage investor with eight exits totaling $2B in value; previously invested with Munich Re and EDB Singapore.
Handles fund operations and GP support, and manages ecosystem and portfolio platform activities.
Legal partner serving cyber firms with expertise in data privacy and risk.
An experienced finance leader focused on startup strategy and operations.
What they invest in
from 17 of 60 portfolio companiesCybersecurity Γ15AI & Machine Learning Γ12Enterprise Software Γ10Developer Tools Γ6Cloud Computing Γ5SaaS Γ4Data & Infrastructure Γ2Deep Tech Γ1
HQs:United StatesΓ3IsraelΓ1
Investments Β· 60 tracked
founders shown can be your intro pathCloud email and data security platform protecting sensitive enterprise data.
Astrix provides security solutions for AI agents and non-human identities (NHIs) in enterprise cloud environments, helping organizations discover, secure, and govern API keys, OAuth tokens, and service accounts across their infrastructure.
AI & Machine LearningCybersecurityEnterprise Software
Alon Jackson(CEO & co-founder)in
AI agent security platform securing non-human identities across the enterprise.
Modern authentication and identity infrastructure for developers and AI-native products.
Better Auth is an open-source authentication framework for TypeScript applications that provides composable, plugin-based authentication with support for multiple methods including credential auth, social sign-on, passkeys, and enterprise features.
CybersecurityDeveloper ToolsEnterprise SoftwareSaaSSan Francisco, US
Bereket Engida(Founder)in
Brand protection and phishing prevention platform using AI to detect and takedown fraud.
Real-time Linux server security and threat detection platform.
Sophos provides cloud security software for multi-cloud environments, protecting workloads, identities, networks, and applications through extended detection and response (XDR), managed detection and response (MDR), and identity threat detection and response (ITDR) across AWS, Azure, GCP, and OCI platforms.
Cloud ComputingCybersecurityEnterprise Software
AI-native data governance platform for managing enterprise unstructured data.
Industrial & cyber-physical systems (ICS/OT) security platform protecting critical infrastructure.
Product security platform embedding security directly into the software development lifecycle.
Autonomous security operations platform for vulnerability detection and remediation.
AI security platform protecting LLM applications from prompt injection, leakage, and misuse.
JupiterOne provides security asset management and visualization software that helps organizations map and monitor their digital infrastructure and security posture in a unified platform.
Cloud ComputingCybersecurityEnterprise SoftwareSaaS
Erkang Zheng(Chief Innovation Officer & Chairman of the Board)inPaul Forte(Chief Executive Officer)in
Cyber asset management platform for visibility across cloud and SaaS environments.
AI security company focused on protecting LLMs from prompt injection and data leakage.
Continuous, AI-native third-party risk management platform.
Runtime security platform providing visibility and control for enterprise AI agents.
Secure container and software supply chain platform delivering minimal hardened images.
Cloud and SaaS threat detection platform focused on identity and data breaches.
Oasis Labs develops privacy-preserving data analytics and AI tools using differential privacy, homomorphic encryption, and zero-knowledge proofs for organizations that need to analyze sensitive data while protecting individual privacy.
AI & Machine LearningCybersecurityData & InfrastructurePalo Alto, US
Dawn Song(Founder & CEO)Robert Gilchrist Jaros(Executive Officer)Xiaodong Song(Executive Officer, Director)
Privacy-first cloud computing platform using secure enclaves and confidential computing.
Application security platform prioritizing risks across the software development lifecycle.
OX Security provides application security solutions that help organizations identify and prioritize exploitable, reachable, and impactful risks across the software development lifecycle.
AI & Machine LearningCybersecurityDeveloper Tools
Security research platform identifying emerging vulnerabilities and threats.
ProjectDiscovery offers Neo, an autonomous AI-powered security testing platform that continuously scans web applications, APIs, and cloud infrastructure to identify and verify vulnerabilities with high accuracy and minimal false positives.
AI & Machine LearningCybersecurityDeveloper Tools
Business simulation platform helping teams test strategic decisions instantly.
Exposure management platform for IT, OT, IoT, cloud, and mobile environments.
Data security platform enabling policy-based access control and governance for cloud data.
Exposure management platform for prioritizing and remediating security findings.
Autonomous security operations platform for modern security teams.
Threat detection and security analytics platform for SOC teams and SIEM environments.
SOC Prime provides AI-powered cybersecurity detection and orchestration tools for security operations teams, enabling threat detection across multiple security infrastructure components including SIEMs, EDR, and data lakes.
AI & Machine LearningCybersecurityEnterprise Software
AI red teaming and security platform for AI applications across the full lifecycle.
AI application security platform protecting LLMs from misuse, abuse, and data leakage.
Securing AI agents; raised a $64M Series A
Service mesh and zero-trust networking platform for cloud-native environments.
Privacy and security infrastructure enabling secure data sharing and AI model usage.
Tinfoil develops secure hardware and systems, with expertise in privacy and security protocols.
AI & Machine LearningCloud ComputingCybersecurityDeep TechDeveloper ToolsEnterprise SoftwareHardwareSan Francisco, US
Tanya Verma(Founder)inJules Drean(Founder)inSacha Servan-Schreiber(Founder)inDanielle Chun(Head of Operations)in
AI-driven attack surface management and security posture optimization for enterprises.
Tuskira offers FedSOC, a federated detection platform that generates security detections across distributed telemetry and correlates signals across 150+ security tools without centralizing logs.
AI & Machine LearningCybersecurityEnterprise Software
Piyush Sharma(Co-founder, CEO)Vipul Parmar(Co-founder, CTO)Om Moolchandani(Co-founder, CPO)
AI-powered security and observability for modern, agentic systems.
Frequently asked questions
- What stage does Rain Capital invest at?
- Rain Capital invests at the Pre-Seed, Seed, Series A stages.
- What sectors does Rain Capital focus on?
- Rain Capital focuses on AI & Machine Learning, Cybersecurity, Healthtech.
- Where is Rain Capital located?
- Rain Capital is headquartered in Bellevue, US.
- Does Rain Capital lead rounds?
- Rain Capital typically participates in rounds rather than leading them.
Media Β· Podcasts & interviews
featuring the teamDr. Chenxi Wang \\ Founder and General Partner of Rain Capital - YouTube
CybHER Β· Dr. Chenxi Wang
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