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Vendor comparison · 4 companies

Armadin, Assail, Cymulate and Reflex Security

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Armadin, Assail, Cymulate and Reflex Security Compared
ArmadinArmadin, Inc is a cybersecurity company that provides an agentic AI, continuous offensive security platform.armadin.comAssailAssail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach.assailai.comCymulateCymulate sells the Cymulate Platform, which turns validation into a continuous, adaptive process of agentic cyber defense engineering.cymulate.comReflex SecurityReflex Security sells an AI-powered incident-response simulation platform that builds adaptive crisis exercises from an organization's real environment.reflexsecurity.io
What it sells
  • The Ultimate Attacker[1][5]Armadin says it built the Ultimate Attacker to expose hidden risk before it becomes an adversarial opportunity. Its tagline is Know all paths in, all the time.
  • Hyperattack[1][5]A banner on Armadin's pages says it safely executes the largest recorded autonomous AI attack.
  • Ares[1][3][4][5][6][7][9][10][11][12]Continuous autonomous red teaming across web applications, APIs, and mobile apps.
  • Reaper[3]Autonomous offensive cyber operations built for military, federal, and intelligence missions.
  • Assail Anywhere[3]Deployment option for the entire platform, including the AI model.
  • Cymulate Platform[3][6]Turns validation into a continuous process of agentic cyber defense engineering.
  • Cymulate Detection Studio[3][7]Automates SIEM rule validation and detection tuning.
  • Reflex[1][2]A platform that builds adaptive incident-response simulations from an organization's real environment and adjusts the scenario to each decision a team makes.
  • Victoria (AI Facilitator)An AI facilitator that joins video calls during exercises, asks role-specific questions, challenges participant decisions and manages a cast of AI agents playing attackers and stakeholders.
  • After-Action Report[2]An automatically generated report produced after each exercise that documents the minute-by-minute simulation, maps findings to MITRE ATT&CK and NIST CSF, and lists action items.
Categories
Headquarters
Not stated on its pagesNot stated on its pagesNot stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages2016[2][9]Not stated on its pages
Ownership and funding
Not stated on its pagesPrivately heldNot stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pagesNot stated on its pagesNot stated on its pages
Recent news
  • October 1, 2026Armadin raised an additional $255.5 million in Series B funding, bringing its total funding to $445 million.[7]
  • March 10, 2026Armadin announced that it raised $189.9 million in Seed and Series A funding.[6]
  • November 4, 2026Assail, Inc. announced Cassandra, a proactive AI agent integrated into its Ares platform, along with expanded threat modeling capabilities tied to autonomous security testing.[11]
  • July 7, 2026Assail Inc. launched Sidewinder, a rebuilt second-generation version of its Ares offensive security platform running on a new 31 billion-parameter model.[12]
  • August 4, 2026Cymulate announced the introduction of Cymulate Cowork, the Cymulate Claude Plugin and the Cymulate MCP Server.[12]
  • August 4, 2026Cymulate announced plans for a new integration with Bitsight to connect threat intelligence with continuous exposure validation.[11]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 3, 2026[4]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, Assail sells mainly to security teams in manufacturing, financial services, federal and state government, automotive, retail, and defense. Its industry pages address manufacturers, banks and fintech firms, government agencies, vehicle makers, retailers, and defense programs. Assail also says it supports on-premises, air-gapped, own-cloud, and SaaS deployment for organizations that need to keep data under their control.From its own pages, Cymulate sells mainly to security teams that need continuous validation, including security operations, detection engineering, red teams and exposure management teams. Cymulate says it supports organizations of all sizes, from mid-market to enterprise, especially those with complex or evolving security stacks. Cymulate also says it serves executives, security operations and the whole security program. For detection work, Cymulate says its Detection Engineering offering is aimed at SOC and Detection Engineering teams.Not written yet
Last verified
October 7, 2026October 21, 2026November 2, 2026November 5, 2026

About Armadin

Armadin, Inc is a cybersecurity company that provides an agentic AI, continuous offensive security platform. The platform identifies and proves exploitable risk across the entire attack surface. It combines red team expertise with autonomous AI-driven attacker swarms to uncover real paths to compromise and to prioritize remediation.

Armadin's platform page sets out three phases for how it identifies actual paths to compromise: Reconnaissance, Adaptive Scouting and Precision Strike. The same page says findings are validated, contextualized and tied to real kill chains.[4]

The company page says Armadin's team includes red teamers, AI builders and cybersecurity pioneers. Armadin says its red team hackers and AI system builders have designed solutions in 95% of Fortune 100 environments. A banner on its pages states that Armadin safely executes the largest recorded autonomous AI attack.[5]

Its listed controls include data transmission encrypted and customer data deleted upon leaving.[1][4][5]

Armadin on the record

Sources

Armadin full record

  1. [1]armadin.comArmadin · armadin.com · undated page, accessed October 7, 2026 · Tier A
  2. [2]Expert AI Cybersecurity & Cyber Defense Company | ArmadinArmadin · undated page, accessed October 7, 2026 · Tier A
  3. [3]Trust Center - ArmadinArmadin · undated page, accessed October 31, 2026 · Tier A
  4. [4]AI Cybersecurity Platform | Armadin Enterprise Grade TechnologyArmadin · undated page, accessed October 31, 2026 · Tier A
  5. [5]Armadin: AI-native cybersecurity platformArmadin · undated page, accessed October 31, 2026 · Tier A
  6. [6]Armadin Secures Record-Breaking $189.9M in Seed and Series A Funding to Combat the Era of AI-Driven HyperattacksArmadin · published March 10, 2026 · Tier A
  7. [7]Investors Back Armadin Platform Strategy with New Round of FundingArmadin · published October 1, 2026 · Tier A

Assail full record

  1. [1]assailai.comAssail · assailai.com · undated page, accessed October 21, 2026 · Tier A
  2. [2]Press releasesAssail · assailai.com · undated page, accessed October 21, 2026 · Tier A
  3. [3]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  4. [4]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  5. [5]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  6. [6]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  7. [7]Automotive | AssailAssail · undated page, accessed November 4, 2026 · Tier A
  8. [8]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  9. [9]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  10. [10]Assail | Autonomous Offensive AI for the modern application stackAssail · undated page, accessed November 4, 2026 · Tier A
  11. [11]Assail Introduces Cassandra, a Proactive AI Agent Connecting Threat Modeling with Autonomous Security TestingPR Newswire · published November 4, 2026 · Tier A
  12. [12]Assail launches Sidewinder, an offensive security AI that fixes its own mistakesSiliconANGLE · published July 7, 2026 · Tier B

Cymulate full record

  1. [1]cymulate.comCymulate · cymulate.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]About usCymulate · cymulate.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Cymulate | AI-Powered Exposure ValidationCymulate · undated page, accessed October 24, 2026 · Tier A
  4. [4]Cymulate Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 24, 2026 · Tier C
  5. [5]Cymulate Platform: Real-Time Automated Security ValidationCymulate · undated page, accessed November 3, 2026 · Tier A
  6. [6]Cymulate + Bitsight | Threat Intelligence Meets Exposure ValidationCymulate · undated page, accessed November 3, 2026 · Tier A
  7. [7]Cymulate's SIEM detection and analysisCymulate · undated page, accessed November 3, 2026 · Tier A
  8. [8]Detection Engineering - CymulateCymulate · undated page, accessed November 3, 2026 · Tier A
  9. [9]About us - Learn about CymulateCymulate · undated page, accessed November 3, 2026 · Tier A
  10. [10]Security at Cymulate - CymulateCymulate · undated page, accessed November 3, 2026 · Tier A
  11. [11]Cymulate and Bitsight Integrate Threat Intelligence & ValidationCymulate · published August 4, 2026 · Tier A
  12. [12]Cymulate Debuts Cowork, Claude Plugin and MCPCymulate · published August 4, 2026 · Tier A

Reflex Security full record

  1. [1]reflexsecurity.ioReflex Security · reflexsecurity.io · undated page, accessed November 5, 2026 · Tier A
  2. [2]How ai powered tabletop exercises improve incident response readinessReflex Security · reflexsecurity.io · undated page, accessed November 5, 2026 · Tier A

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