NEWCaplight raises a $16M Series A, led by BlackRock and Fin Capital →
Skip to main content
Caplight Logo









Arms Cyber

Arms Cyber

Private
Fulton, MarylandCybersecurityhttps://www.armscyber.com/

Last Round

Seed

Feb 1, 2025

Total Funding Raised

$4.12M

Company Overview

Arms Cyber is a cybersecurity company that provides a stealth-driven preemptive security platform designed to protect against ransomware, AI-driven attacks, and data threats.

Sector

Cybersecurity

Verticals

Endpoint Security, Data Protection, Cloud Security, Threat Intelligence, Vulnerability Management

Business Model

B2B

Customer Profile

Subscription SaaS, Services & Consulting, Government Contracts

AI Layer

Application

Keywords

ransomware protectionendpoint securitypreemptive securitydeception technologyautomated moving target defenseAMTDstealth technologyimmutable backupsrapid recoveryhypervisor securityAI policy enforcementAI guardrailsAI agent securitycyber deceptionthreat detectionMSSP tools

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

Arms Cyber Comparables

Compare Arms Cyber with similar companies based on industry and business-model similarity.

Arms Cyber comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Halcyon
87%
Morphisec
76%
Microsoft
69%

Arms Cyber Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
SeedFeb 1, 2025
GrantDec 15, 2021
GrantOct 13, 2021
GrantAug 27, 2020

Key People

Founding team and executive leadership

Josh McCarthy

Chief Product Officer

Executive Team

Arms Cyber Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jan 21, 2026

    Monthly visitors grew 107% MoM, reaching 3.1K.

  • Dec 23, 2025

    Grew 17% QoQ, from 36 to 42 employees.

Arms Cyber Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation
Sign Up to view
Mock Valuation

Arms Cyber Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Arms Cyber's valuation, stock price, and market status.

Firmographic Details

HeadquartersFulton, Maryland
Employee Range43
Year Founded2020
Last FundingFeb 1, 2025

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.