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Reach Security

San Francisco, US · Founded 2021 · 94 employees on LinkedIn · 10 known investors

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Reach provides a platform for organizations to identify and remediate hidden security risks, exposures, and misconfigurations across their existing security tools. The company serves enterprise organizations seeking to reduce security risk and improve their overall security posture through guided, automated remediation.

AI & Machine LearningCybersecurityEnterprise Software

Founders & leadership

Reach Security was founded in 2021 by Garrett Hamilton and Colt Blackmore.

GHGarrett Hamilton
Garrett HamiltonFounderGarrett Hamilton is CEO and co-founder of Reach Security, which helps organizations identify and remediate hidden risks and misconfigurations across their existing security tools. He previously spent six years leading SaaS product management and go-to-market teams at Palo Alto Networks, and earlier worked on threat analysis, memory forensics training for federal agencies, and consulting at HBGary at an earlier security startup.
CBColt Blackmore
Colt BlackmoreFounderCo-founder and CTO of Reach Security, which offers a platform for identifying and remediating hidden security risks, exposures, and misconfigurations across an organization's existing security tools. He works on security software, including ML-powered threat and intelligence systems for boards and executives, and previously pursued a humanities Ph.D.

Board

GEGregory Eaton
Gregory EatonFounder & Managing DirectorFounder - Managing Director at Cheyenne Ventures

Investors · 10

Ballistic Ventureslisted by Ballistic VenturesSan Francisco · $1M – $5M

How we know: Ballistic Ventures's portfolio page · prnewswire.com · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us

Cheyenne Ventureslisted by Cheyenne VenturesWoodside

How we know: Cheyenne Ventures's portfolio page · Not right? Tell us

In-Q-Tellisted by In-Q-TelTysons · $100K – $2.5M

How we know: In-Q-Tel's portfolio page · Not right? Tell us

M12 (Microsoft's Venture Fund)listed by M12 (Microsoft's Venture Fund)Seattle · $100K – $10M

How we know: M12 (Microsoft's Venture Fund)'s portfolio page · a partner's Signal profile · open dataset · 5k.vc investor directory · Not right? Tell us

Ridge Ventureslisted by Ridge VenturesSan Francisco · $2M – $7M

How we know: Ridge Ventures's portfolio page · prnewswire.com · the VCSheet dataset · Not right? Tell us

TechOperators Venture Capitallisted by TechOperators Venture CapitalAtlanta · $1M

How we know: prnewswire.com · the VCSheet dataset · Not right? Tell us

Webb Investment Networklisted by Webb Investment NetworkSan Francisco · $500K – $750K

How we know: prnewswire.com · Not right? Tell us

Costanoa VenturesreportedSan Francisco · $500K – $8M

How we know: open dataset · 5k.vc investor directory · Not right? Tell us

Also in the syndicate · 1

M12

Funding

SEC filings, press & company announcements

$30M disclosed across 2 rounds · 2024–2025

Source: company announcements and press reports — follow each round's link for the claim.

Related companies · 10

Palo Alto NetworksPalo Alto Networks provides cybersecurity platforms and services to protect organizations' digital infrastructure across cloud, network, and security operations. The company serves enterprise organizations, governments, financial institutions, utilities, and healthcare providers globally.
Sentinel OneSentinelOne provides an AI-powered cybersecurity platform for enterprises that integrates endpoint protection, threat detection, and incident response capabilities. The company serves large enterprises, including many Fortune 500 organizations, to protect against cyber threats at scale.
CymulateCymulate provides a cybersecurity platform for security validation and exposure management, helping companies assess and strengthen their security posture. Founded in 2016, it serves over 1,000 customers across 50 countries.
CrowdStrikeCrowdStrike provides an AI-native cybersecurity platform that unifies endpoint, identity, cloud, SaaS, and AI protection to detect and stop breaches for enterprise organizations. It combines automated response with human-led security operations including managed detection and response, threat hunting, and security services.
Check Point SoftwareCheck Point Software Technologies is a cybersecurity company providing security products and solutions. This page is its investor relations section, containing annual reports, SEC filings, financial results, and corporate governance information.
Safe SecuritySAFE Security provides a cyber risk management platform tailored to retailers, offering continuous visibility into cyber and third-party risk across e-commerce, physical stores, cloud environments, and vendors. Its offering for retail includes autonomous third-party risk management to help protect revenue, customer data, and brand reputation.
SprintoSprinto is a compliance and governance, risk, and compliance (GRC) platform that automates security compliance across 200+ frameworks such as SOC 2, ISO 27001, HIPAA, GDPR, and PCI DSS. It serves companies from Series A to enterprise, covering compliance, vendor risk, AI governance, and audit preparation through integrations with cloud, identity, HR, and SaaS systems.
Picus SecurityPicus Security develops security validation technology, including Breach and Attack Simulation and automated penetration testing, to help organizations identify and prioritize cyber exposures and apply mitigations. It serves enterprise security teams in the Adversarial Exposure Validation and cyber resilience category.
UpguardUpGuard provides a platform for managing cybersecurity risk, including third-party vendor and supply chain risk assessment. It is aimed at organizations seeking to evaluate and monitor the security posture of their vendors.
CiscoCisco Systems designs and sells networking hardware, software, and services—including routers, switches, and cloud-based applications—to enterprise, service provider, and consumer markets globally.

Companies working in the same space as Reach Security.

In the news

Reach Security Raises $10 Million for Exposure Management Solution - SecurityWeeksecurityweek.com · Jul 2025Cybersecurity AI firm Reach Security raises $10m from M12fintech.global · Jul 2025Reach Security Receives $10M in Fundingfinsmes.com · Jul 2025Reach Security Raises $20M in Fundingfinsmes.com · Mar 2024Reach Security Raises $20M for AI That Transforms How Companies Use Their Cybersecurity Productsprnewswire.com · Mar 2024

Frequently asked questions

What does Reach Security do?
Reach provides a platform for organizations to identify and remediate hidden security risks, exposures, and misconfigurations across their existing security tools. The company serves enterprise organizations seeking to reduce security risk and improve their overall security posture through guided, automated remediation.
Who founded Reach Security?
Reach Security was founded by Garrett Hamilton, Colt Blackmore in 2021.
Who are Reach Security's investors?
Reach Security's investors include Artisanal Ventures, Ballistic Ventures, Cheyenne Ventures, In-Q-Tel, M12 (Microsoft's Venture Fund), Ridge Ventures, TechOperators Venture Capital, Webb Investment Network and 1 more.
How much funding has Reach Security raised?
Reach Security has disclosed $30M raised across 2 rounds.
Where is Reach Security headquartered?
Reach Security is headquartered in San Francisco, US.