/Investor DB

Rain Capital — Full Portfolio

38 tracked investments · listed companies and verified rows first

Manifold Securitymanifold.securityinMar 2026✓ verified

Manifold builds AI Detection and Response security for enterprises deploying autonomous AI agents, monitoring agent behavior at runtime across source code, pipelines, and production systems.

AI & Machine LearningCybersecurityEnterprise Software

Co-investorsCherry VenturesModern TechnicalCostanoa Ventures

Altitude Networksaltitudenetworks.com

Cloud email and data security platform protecting sensitive enterprise data.

Amir Kavousian(Founder)in

Co-investorsFelicis VenturesAccompliceSalesforce VenturesSlack Fund

Astrix Securityastrix.securityin𝕏

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(Founder)inAlon Jackson Idan Gour(Founder)Idan Gour(Founder)

Co-investorsAlphaDriveBessemer Venture PartnersCRV (Charles River Ventures)F2 Venture CapitalMenlo VenturesVenrock+1 more

Better Authbetter-auth.comin𝕏acquired by Vercel

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)inRavindra MistriinKinfeMichael Tariku(Founder)

Co-investorsChapter OneLobster CapitalP1 VenturesPeak XV PartnersPioneerSeaplane Ventures+9 more

Bolsterbolster.ai

Bolster is a marketplace and search platform matching startups with full-time, fractional, interim and board-level executives.

Santa Clara, US

Abhishek Dubey(Founder)in

Co-investorsCervinCheyenne VenturesCrosslink CapitalCyber Mentor FundM12 (Microsoft's Venture Fund)CERVIN VENTURES+3 more

Capsule8capsule8.comAug 2019 · $6.5Macquired by Sophos

Capsule8 developed runtime security and attack detection software for Linux production environments, protecting cloud workloads, containers, and servers.

Cloud ComputingCybersecurityEnterprise Software

John Viega(Founder)in

Co-investorsBessemer Venture PartnersClearSkyIntel CapitalSyn Ventures Seed Management LlcAramco VenturesIndex Ventures

CFO.airunway.comin𝕏

Runway helps founders understand financial data and spreadsheets.

AI & Machine LearningEnterprise SoftwareFintechSaaS

Anastasis Germanidis(Founder)inCristóbal Valenzuela(Founder)inSiqi Chenin

BoardDylan FieldHenry Ward

Co-investors500 GlobalAndreessen HorowitzChamaeleonCrosscourt VenturesDreamers VCInitialized Capital+9 more

Clariogetclario.aiin𝕏Jun 2026 · $6M

Clario identifies and removes redundant, obsolete, and trivial unstructured data across enterprise content systems so organizations reduce storage, lower risk, and create cleaner data foundations for AI.

AI & Machine LearningData & InfrastructureEnterprise Software

Co-investorsGolden Sparrow Ventures, LlcMoment Ventures, LlcAV8 VenturesFoster VenturesPage One VenturesPreface Ventures+2 more

Clarotyclaroty.comin𝕏

Team82 is a cybersecurity vulnerability and threat research team that identifies software and firmware vulnerabilities in cyber-physical systems.

AI & Machine LearningCybersecurityIoT

Galina Antova(Founder)inYaniv VardiinAmir Zilberstein(Founder)Benny Porat(Founder)

BoardDavid Millstone(co-CEO of Standard Industries and co-CIO of Standard Investments)

Co-investorsArcher Capital GroupArcher Venture CapitalAster CapitalB CapitalBessemer Venture PartnersBMW i Ventures+18 more

Clover Securityclover.securityin𝕏

Clover Security provides context-aware AI agents for product security that detect risks, run automated security reviews, generate threat models from codebases, and enforce security policies within engineering workflows.

AI & Machine LearningCybersecurityDeveloper Tools

Alon Kollmann 🍀(Founder)inOr Chen(Founder)inAlon Kollmann(Founder)

Co-investorsNotable CapitalTeam8Team8 Capital

Costanoa Venturescostanoa.vcinMar 2026

Costanoa is a venture capital firm that backs early-stage founders solving large, difficult problems, providing long-term partnership and operational support.

Greg Sands(Founder)inAmy Cheethamin

Co-investorsCostanoa VenturesFoundryUnion Grove Venture PartnersCherry VenturesModern Technical

Costanoa Venturescostanoavc.com

Costanoa is a venture capital firm that invests in early-stage founders solving large, technically hard problems, with a focus on enterprise software companies.

Enterprise Software

Co-investorsBCIFoundryACME CapitalACTivate CapitalArcTern VenturesCherry Ventures+5 more

Elisityelisity.comin𝕏Mar 2024

Elisity provides an identity-based microsegmentation platform that turns existing network infrastructure (Cisco, Arista, Aruba, Juniper switches and Palo Alto firewalls) into policy enforcement points to discover devices and enforce least-privilege access without agents, new hardware, or re-IPing.

CybersecurityEnterprise SoftwareIoTSaaSSan Jose, US

Brian Thompson(Executive Officer)inJames Winebrenner(Executive Officer, Director)inBurjiz Pithawala(Founder)Srinivas Sardar(Founder)Sundher Narayan(Founder)

BoardBrian Long(Director)in

Co-investorsAllegisCyber CapitalAtlantic Bridge VenturesInsight PartnersTwo Bear CapitalALLEGIS CAPITALTCV

Fleak AIfleak.ai

Fleak builds a data normalization and quality platform that automatically structures fragmented data inputs for use in AI systems and analytics pipelines.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise Software

Bo LeiYichen Jin

Co-investorsCisco InvestmentsHivemind Capital PartnersOakseed VenturesSAV (Scale Asia Ventures)SmartGateVC

Jupiter One enterprise-saasjupiterone.comin

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(Founder)inPaul Forte(Chief Executive Officer)in

Co-investors11.2 Capital515 VenturesBain Capital VenturesCisco InvestmentsIntel CapitalSapphire Ventures+2 more

Lakeralakera.aiinAcquired

Check Point Software Technologies is a cybersecurity company that provides threat prevention solutions for enterprises, governments, service providers, small and medium businesses, and consumers.

AI & Machine LearningCloud ComputingCybersecurityDeveloper ToolsEnterprise SoftwareSaaSTel Aviv, IL

David Haber(Founder)inMateo Rojas-Carulla(Founder)Matthias Kraft(Founder)

Co-investorsAtomicoBrightmindExpedite VenturesFly VenturesCiti VenturesDropbox Ventures+2 more

Lema AIlema.aiin

Lema provides an AI-powered risk engineering platform that investigates vendor security posture and third-party risk through technical verification rather than standard compliance questionnaires.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaS

Co-investorsF2 Venture CapitalTeam8Team8 Capital

Manifoldmanifold.incin𝕏Mar 2026 · $8M

Manifold operates a frontier AI lab providing GPU compute infrastructure with hardware-backed data protection and confidential computing capabilities.

AI & Machine LearningCloud ComputingData & InfrastructureAustin, US

Co-investorsDigital Currency GroupCherry VenturesCostanoa VenturesModern Technical

Minimusminimus.ioin𝕏

Minimus develops security solutions for cloud-native applications, founded by the team behind Twistlock.

Cloud ComputingCybersecurityDeveloper ToolsNew York City, US

Ben Bernstein(CEO & Co-Founder)inDima Stopel(VP R&D & Co-Founder)inJohn Morello(CTO & Co-Founder)in

Co-investorsMayfield FundOregon Venture FundYL Ventures

Mitigamitiga.ioin

Mitiga provides cloud incident response and breach prevention software using AI-driven detection and forensic analysis for enterprises.

AI & Machine LearningCloud ComputingCybersecurity

Ariel Parnes(Founder)inCharlie Thomasin

Co-investorsAtlantic Bridge VenturesCisco InvestmentsClearSkyDnx VenturesGlilot Capital PartnersSyn Ventures Seed Management Llc

Oasis Labsoasislabs.com𝕏

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 & InfrastructureDeveloper ToolsPalo Alto, US

Dawn Song(Founder)inBobby Jaros(Executive Officer)Noah JohnsonRaymond Cheng

Co-investors1k(x)1kx500 GlobalAmino CapitalAndreessen HorowitzAngelONE Capital+25 more

Orumorumhq.comin𝕏Nov 2022

Orum offers an AI-powered dialing and coaching platform that helps sales development teams run cold calling as a system, maximizing live conversations by detecting who answered first, optimizing connect rates, and providing coaching insights.

AI & Machine LearningSaaSSales TechSan Francisco, US

Karthik Viswanathan(Executive Officer, Director)inJason Dorfman(Executive Officer, Director)in

BoardAyush Sood(Director)

Co-investorsCanapi VenturesCraft VenturesHomebrewInspired CapitalUnusual VenturesAbstract Ventures+20 more

OX Securityox.securityin𝕏

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 ToolsNew York City, US

Neatsun Ziv(Founder)inLior Arzi(Founder)in

Co-investorsEvolution Equity PartnersM12 (Microsoft's Venture Fund)Swisscom VenturesDTCPTeam8

Project Discoveryprojectdiscovery.ioin𝕏Aug 2023 · $25M

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

Rishiraj Sharma(Founder)inSandeep Singh(Founder)inMarco Rivoli(Founder)Nizamul Rana(Founder)

Co-investorsAccelAngel Collective Opportunity FundCRV (Charles River Ventures)Lightspeed India PartnersLightspeed Venture PartnersMango Capital+5 more

runZerorunzero.comin𝕏Acquired

runZero provides an exposure management platform that discovers and fingerprints IT, OT, IoT, cloud, mobile, and remote assets without agents or credentials, giving security teams visibility into their attack surface.

AI & Machine LearningCybersecurityIoTSaaS

HD Moore(Founder; Chief Research Officer of Dragos)in

BoardRobert M. Lee(Chairman and CEO of Dragos)in

Co-investorsDecibel PartnersStoneMill Ventures

Satorisatoricyber.comin𝕏

Satori provides a data security platform that enables self-service access to data across analytics and production environments while applying dynamic masking and access control policies.

CybersecurityData & InfrastructureEnterprise Software

Co-investorsB Capital GroupB4 CapitalEvolution Equity PartnersYL Ventures

Seemplicityseemplicity.aiin𝕏May 2022 · $32M

Seemplicity provides an AI-driven platform that automates exposure management and remediation for security teams, turning vulnerability findings into prioritized, actionable tasks delivered through existing tools.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaS

Yoran Sirkis(CEO and Co-Founder)inRavid Circus(Chief Product Officer and Co-Founder)inRotem Cohen Gadol(Chief Technology Officer and Co-Founder)in

Co-investorsAtlantic Bridge VenturesGlilot Capital PartnersNTT Venture CapitalSienna Venture CapitalS Capital

Simbiansimbian.aiin𝕏Apr 2024 · $10M

Simbian builds an AI-driven security operations (SecOps) platform that uses autonomous AI agents to investigate alerts, run threat hunts, conduct penetration tests, and manage network and firewall operations for enterprise and MSSP security teams.

AI & Machine LearningCybersecurityEnterprise Software

Ambuj Kumar(CEO & Co-Founder)inAlankrit Chona(CTO & Co-Founder)inSumedh Barde(Chief Product Officer)in

Co-investorsCota CapitalIcon VenturesWipro Ventures

SOC Primesocprime.comin𝕏

SOC Prime offers an AI-driven platform for detecting cyber attacks, using detection intelligence to let security teams orchestrate detections across data pipelines, AIDR, EDR, data lakes, and SIEM.

AI & Machine LearningCybersecurityData & Infrastructure

Alex Bredikhin(Founder)in

Co-investorsAngel OneAtlantic Bridge VenturesDigital Future Investments LtdDnx VenturesJ-VenturesRembrandt Venture Partners+3 more

SplxAIsplx.aiin𝕏Feb 2025 · $7M

SPLX offers a security platform for enterprise AI systems, covering automated red teaming, runtime protection against prompt injections and data leakage, governance and compliance mapping, and remediation.

AI & Machine LearningCybersecurityEnterprise SoftwareDover, US

Kristian Kamber(Founder)inAnte Gojsalic(Founder)in

BoardStanislav Sirakov(Director)in

Co-investorsDNV VenturesInovo VCLauncHub VenturesLAUNCHub VenturesSouth Central VenturesRuntime Ventures

Straikerstraiker.aiin𝕏Jul 2026 · $64M

Straiker builds security software for enterprise AI agents, offering agent discovery, autonomous red teaming for attack paths, and runtime protection across tools, data, MCP servers, and workflows.

AI & Machine LearningCybersecurityEnterprise SoftwareMountain View, US

Ankur Shah(Founder)inSreenath Kurupati(Founder)in

Co-investorsBain Capital VenturesGTM CapitalLightspeed Venture PartnersNeva Sgr.Citi VenturesIlluminate Financial+2 more

Tetratetetrate.ioin𝕏

Tetrate builds AI governance and routing infrastructure for enterprises, including a service that routes queries to models based on cost, performance, and policy, and a director product for centralized governance and visibility across teams and providers.

AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise SoftwareMilpitas, US

Hongtao Gao(Founder)inVarun Talwar(Founder)inJeyappragash Jeyakeerthi(Founder)

Co-investorsFalconX VenturesHumans Of The InternetNTT Venture Capital8VCDell Technologies CapitalSapphire Ventures

Tinfoiltinfoil.shin𝕏

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

Co-investorsPioneerY CombinatorFelicis VenturesFounder CapitalKima VenturesLiquid Ventures+5 more

Tuskiratuskira.aiin

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 SoftwareDanville, US

Piyush Sharma(Co-founder, CEO)Vipul Parmar(Co-founder, CTO)inPiyush Sharrma(Founder)inOm Moolchandani(Founder)in

Co-investorsIntel CapitalSyn Ventures Seed Management LlcWipro Ventures

Ventriloventrilo.aiinApr 2023

Ventrilo is an AI assistant platform that provides support for writing, research, and productivity tasks while prioritizing user control and creative enhancement over automation.

AI & Machine LearningDeveloper ToolsSaaSSan Francisco, US

Andy Chou(Executive Officer, Director)in

Co-investorsAndreessen HorowitzInception Studio Capital

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

CloverSPLX

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.