How many investments has Runtime Ventures made?

Runtime Ventures has 25 tracked investments, 2 of which have exited, including 5 dated in the last 24 months.

What stage does Runtime Ventures invest at?

Runtime Ventures invests at the Pre-Seed, Seed stages.

What is Runtime Ventures's typical check size?

Runtime Ventures typically writes checks of $250K – $2M.

What sectors does Runtime Ventures focus on?

Runtime Ventures focuses on AI & Machine Learning, Cybersecurity, Enterprise Software.

Where is Runtime Ventures located?

Runtime Ventures is headquartered in Arlington, US.

Does Runtime Ventures lead rounds?

Yes, Runtime Ventures leads investment rounds.

Who does Runtime Ventures co-invest with?

Runtime Ventures most often shares deals with Modern Technical, Blumberg Capital, Inner Loop Capital, among 19 tracked co-investors.

Runtime Ventures

Venture capital

Arlington · Pre-Seed–Seed · 5 people tracked

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Investment thesis

Runtime Ventures is a security-focused venture fund that backs cybersecurity founders at the earliest stages. It positions itself as a hands-on strategic partner rather than a passive investor, supporting companies from seed funding through key milestones such as recruiting critical hires. The firm emphasizes deep domain expertise in the security space and works closely with both first-time and seasoned entrepreneurs during the early-stage building process.

Invests inAI & Machine Learning Cybersecurity Enterprise Software Arlington Israel United States

Source: firm website, verified Sep 27, 2026.

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Stage

Pre-Seed–Seed

Check

$250K – $2M

Arlington, Virginia, US

Leads rounds

Leads

Instruments

Equity

Founded

2023

Last 12 months

1 investment

Tracked investments

Acquisitions

Team · 5 people

from the firm's website & public directories

David Endler· General Partner & Co-Founder· Austin, Texas, United Statesin

David Endler is a General Partner and Co-Founder of Runtime Ventures, following a 25-year career in cybersecurity in which he founded two companies. He co-founded SpyCloud in 2016 (account takeover and anti-ransomware) and earlier started Jumpshot, an anti-malware firm acquired by Avast in 2013, and led security teams at TippingPoint, iDEFENSE, MIT, Deloitte, and the NSA. He holds BS and MS degrees in Computer Science from Tulane University and has authored multiple patents and books.

dave@runtime.vc

Michael Sutton· General Partner & Co-Founder· Washington, DC metro areain 𝕏

Michael Sutton is an angel investor focused on early-stage cyber security companies, primarily at the seed stage. He was a member of the founding team at Zscaler, where he served as CISO and spent about a decade building the company's research team and shaping its security model. Earlier in his career, he helped build SPI Dynamics (acquired by HP) and iDEFENSE (acquired by VeriSign). After Zscaler's March 2018 IPO, he launched StoneMill Ventures to invest full time, concentrating on the Washington, DC metro area while remaining open to global opportunities.

michael@runtime.vc

Elisa Yan· Analyst· Greater Sacramentoin

Elisa Yan is an Analyst at Runtime Ventures, where she analyzes cybersecurity deal flow, builds investor communications, and supports portfolio engagement. Before Runtime, she gained venture and finance experience at firms including Growth Factory Ventures and Silver Lead Partners, working on deal sourcing, market research, and investment committee preparation. She is pursuing a BS in Finance and International Business at Georgetown University's McDonough School of Business, where she is a private equity analyst with Georgetown Student Capital Partners and a Global Business Fellow.

Ruoting Sun· Operating Partner· San Francisco Bay Areain

Ruoting Sun is a cybersecurity executive, investor, and advisor with experience across product and go-to-market roles. He is currently Chief Marketing Officer at GreyNoise, previously led Product at Secureframe, and held a leadership role at Duo Security, where he worked on an early Zero Trust offering and partnerships ahead of its acquisition by Cisco. He mentors early-stage startups on product-market fit and growth, holds a degree in Quantitative Finance, and previously worked as a quant trader.

Raed Malhas· Executive Officer

What they invest in

from 16 of 25 portfolio companies

Cybersecurity ×10SaaS ×8AI & Machine Learning ×7Enterprise Software ×6Data & Infrastructure ×3Developer Tools ×2Digital Health ×2Healthtech ×2

HQs:United States×11Israel×1

Who they back

founder profiles across 8 portfolio companies

63%

solo founders

5 of 8 mapped founding teams

Founding team size:solo founder×53 founders×24+ founders×1

Where their founders studiedfrom 10 founders with education data

Tel Aviv University ×2University of Southern California ×2

What their founders studiedfrom 11 founders with field-of-study data

Computer Science ×5Engineering ×5

Investments · 25 tracked

founders shown can be your intro path

By year:2026 · 1 2025 · 2 2024 · 2 2023 · 49 dated

Aistrikeaistrike.com in 𝕏

AiStrike builds an AI-native security operations platform that uses agentic AI to help organizations reduce alert noise, accelerate threat response, and modernize security operations.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaSDublin, US

Nitin Agale(Founder & CEO)in Kayzad Vanskuiwalla(Co-Founder, CPO)inHarsh Patwardhan(Co-Founder & Chief Technology Officer)inNishtha Agale(Executive Officer)

Board Pramod Gosavi(Director)in

Co-investorsBlumberg Capital Dreamit Ventures Oregon Venture Fund

Awareawarelabs.xyz in 𝕏Jun 2023 · $2.4Macquired by Mimecast

AI-powered security platform for enterprise collaboration tools that monitors communications and identifies compliance risks

Data & InfrastructureTel Aviv, IL

Jeff Schumann(Founder & CEO)

Co-investorsCherry Ventures Draper Triangle JobsOhio Ventures Jumpstart Ventures Ohio Innovation Fund Techstars +6 more

Bloomusebloom.com in

Bloom is a coaching platform that delivers personalized, short-form advice drawn from experienced business leaders, available on demand without scheduled meetings or video calls.

EdTechFuture of WorkHR TechSaaS

Co-investorsInnovation Global Capital MMC Ventures Octopus Ventures Glilot Capital Partners Okta Ventures

Bloombloomthrives.com in

Bloom is a customer engagement company that helps private Medicare and other government-related insurance plans, along with their agents and brokers, guide older adults through shopping for, enrolling in, and activating health coverage.

Digital HealthEnterprise SoftwareHealthtechInsurTechSaaSBloomington, US

Sherman Rogers(Founder)in

Co-investorsOak HC/FT Ten Eleven Glilot Capital Partners Okta Ventures

Dodgeballdodgeballhq.comacquired by Spreedly

Spreedly operates an open payments platform that lets merchants orchestrate their payment stack, securely vault customer payment methods, manage fraud and authentication, and accept payments initiated by AI agents across multiple processors.

AI & Machine LearningFintechSaaSSan Francisco, US

Adam Hiatt(Executive Officer, Director)in

Co-investorsPoint72 Ventures Essence Venture Capital

Enveedoenveedo.comNov 2023 · $3.1M

Enveedo offers a cybersecurity strategy execution platform for planning, building, and running a cybersecurity program, aimed at helping organizations manage ongoing cyber threats and build cyber resiliency.

CybersecurityEnterprise SoftwareSaaSMiami, US

Daniel Monetto(Executive Officer)Mateo Ward(Director, Promoter)Luciano Salata(Executive Officer, Director, Promoter)

Board Kip McClanahan(Director)in

Co-investorsService Provider Capital Silverton Partners

Keep Awarekeepaware.com inJun 2023 · $2.4M

Keep Aware provides agentless browser security deployed as a lightweight extension to existing browsers (Chrome, Edge, Firefox, Safari, and other Chromium-based browsers) for enterprise IT security teams.

CybersecurityEnterprise SoftwareSaaSAustin, US

Ryan Boerner(Founder)in

Co-investorsLiveOak Venture Partners LiveOak Ventures

Miggomiggo.io in 𝕏

Miggo provides a runtime application security platform that maps how first- and third-party applications connect, validates which vulnerabilities are actually exploitable at runtime, and deploys vulnerability-specific WAF rules to mitigate exploitable risk without patching.

AI & Machine LearningCybersecuritySaaS

Daniel Shechter(Co-Founder & CEO)in Itai Goldman‏(Founder)in

Co-investorsSyn Ventures Seed Management Llc YL Ventures

Preemptivepreemptive.health inJan 2026 · $7M

Preemptive builds a continuous, clinician-guided health monitoring layer positioned beneath primary care, using sensing and AI to detect early physiological changes before symptoms appear.

AI & Machine LearningDigital HealthHealthtech

Jamien McCullum(Founder / CEO)in Matt Whitehill(Founder / Chief Technology Officer)inJorge Sanchez(Medical Director)

Co-investorsAllen Institute for AI (AI2) Incubator Evolution VC Partners Blumberg Capital Hike Ventures Oregon Venture Fund

Prequelprequel.com

Heavy Lifting LLC is a private investment company that acquires, develops, and holds digital assets such as premium domain registrations and intellectual property.

Crypto & Web3Media & Entertainment

Co-investorsScript Capital Operator Partners Work-Bench

Prequelprequel.dev in 𝕏Dec 2024 · $3.3M

Prequel provides distributed detection software for finding and fixing reliability and security risks across application stacks.

CybersecurityData & InfrastructureDeveloper ToolsNew York City, US

Tony Meehan(Co-Founder & CTO)inConor McCarter(Founder)in Timur Khabirov(Founder)in

Co-investorsWork-Bench NextView Ventures Operator Partners Script Capital Stage 2 Capital Y Combinator

RunRevealrunreveal.com in 𝕏Apr 2025 · $7M

RunReveal is a security operations platform that ingests, normalizes, enriches, and analyzes security logs, with AI-powered detection and response built in via native AI chat and a Model Context Protocol server.

AI & Machine LearningCybersecurityData & InfrastructureAustin, US

Alan Braithwaite(CTO & Co-Founder)inEvan J Johnson(Founder)in

Board John Cowgill(Director)in

Co-investorsModern Technical Costanoa Ventures Okta Ventures

Solidcoresolidcore.ai

SolidCore captures and stores prompts, responses, configuration data, and metadata from generative AI interactions at the API layer, creating an immutable system of record for enterprises.

AI & Machine LearningCybersecurityEnterprise SoftwareMenlo Park, US

Hemma Prafullchandra(Founder)

Co-investorsEPIC VENTURES

SplxAIsplx.ai in 𝕏Mar 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(Executive Officer, Director)in Ante Gojsalic(Executive Officer, Director)in

Board Stanislav Sirakov(Director)in

Co-investorsDNV Ventures Inovo VC LauncHub Ventures LAUNCHub Ventures Rain Capital South Central Ventures

Step Securitystepsecurity.io in 𝕏May 2023

StepSecurity provides a platform to prevent, detect, and respond to software supply chain attacks across developer machines, code repositories, and CI/CD pipelines.

CybersecurityDeveloper ToolsSammamish, US

Varun Sharma(Executive Officer, Director)in

Co-investorsInner Loop Capital

Systemtwosecuritysystemtwosecurity.com inDec 2024

System Two Security builds an AI-agent platform for detection engineering, operating the detections.ai community and enterprise product.

Co-investorsThe Hive Costanoa Ventures Webb Investment Network

ThreatMatethreatmate.com in

ThreatMate is a risk validation platform for managed service providers (MSPs) that combines attack surface discovery, vulnerability scanning, automated penetration testing, and configuration audits to prove which security exposures are actually exploitable.

CybersecuritySaaSDover, US

Anup Ghosh(Executive Officer)inStanimir Ivanov(Executive Officer)Mike Phelan(Executive Officer)in

BoardFrancesca Lancer(Chairman of the Advisory Board)

Co-investorsTop Down Ventures

Other

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

Application Observability For Cloud DevelopersBloom SecurityDetectionsFluxSPLXStealth Agentic AiStealth Ai PentestStealth Ai Pentesting Platform

Exits · 2

2 acquisitions

Awareacq. by MimecastDodgeballacq. by Spreedly

Portfolio news

latest coverage across their companies

AiStrike raises $7m for AI-native cyber defence

Aistrike · fintech.global · Jan 26, 2026

From Getting Rickrolled by Canaries to AI-Native Security

RunReveal · blog.runreveal.com · Sep 12, 2025

Miggo Raises $17M in Series A Funding

Miggo · finsmes.com · Apr 23, 2025

Frequently asked questions

How many investments has Runtime Ventures made?: Runtime Ventures has 25 tracked investments, 2 of which have exited, including 5 dated in the last 24 months.
What stage does Runtime Ventures invest at?: Runtime Ventures invests at the Pre-Seed, Seed stages.
What is Runtime Ventures's typical check size?: Runtime Ventures typically writes checks of $250K – $2M.
What sectors does Runtime Ventures focus on?: Runtime Ventures focuses on AI & Machine Learning, Cybersecurity, Enterprise Software.
Where is Runtime Ventures located?: Runtime Ventures is headquartered in Arlington, US.
Does Runtime Ventures lead rounds?: Yes, Runtime Ventures leads investment rounds.
Who does Runtime Ventures co-invest with?: Runtime Ventures most often shares deals with Modern Technical, Blumberg Capital, Inner Loop Capital, among 19 tracked co-investors.

Media · Podcasts & interviews

featuring the team

EP3 Keep Austin Secure: Inside the Mind of a Cyber Pioneer: David Endler from Runtime Ventures

Hubscale · David Endler

Images

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