CISO Tribune

Vendor comparison · 2 companies

Cymulate vs Fleuret AI

Cymulate sells the Cymulate Platform, which turns validation into a continuous, adaptive process of agentic cyber defense engineering. Fleuret AI sells pentesting that combines artificial intelligence and offensive expertise. CISO Tribune files both under Breach simulation and automated pen-testing. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Up to four companies side by side.

  • Cymulate
  • Fleuret AI
Cymulate vs Fleuret AI: Products, Customers and Funding Compared
CymulateCymulate sells the Cymulate Platform, which turns validation into a continuous, adaptive process of agentic cyber defense engineering.cymulate.comFleuret AIFleuret AI sells pentesting that combines artificial intelligence and offensive expertise.fleuret.ai
What it sells
  • 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.
  • Émile[4][6]Runs pentests on applications, APIs and infrastructure and ships a replayable exploit with every finding.
  • Hortense[4][5][6]Tells customers what to test next, and when.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
2016[2][9]Not stated on its pages
Ownership and funding
Not stated on its pagesPrivately held
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • 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]
  • October 5, 2026Fleuret AI closed a €4M pre-seed round led by RAISE Ventures, with participation from Auriga Cyber Ventures, Wind Capital and Better Angle.[2]
G2 and Gartner Peer Insights
  • 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
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.Its published guides address CISOs at credit institutions and at SaaS companies. Fleuret describes its service as adding to the people already in place, such as a customer's team, MSSP or PASSI-certified firm. Its reports are signed and mapped to DORA, NIS2 and ISO 27001. Hosting and inference run on Scaleway in Paris.
Last verified
November 2, 2026October 21, 2026

Where they overlap

  • Breach simulation and automated pen-testing is the primary category of both Cymulate and Fleuret AI.

Where they differ, field by field

  • Fleuret AI is also filed under Penetration testing and red team services, Static application security testing and Dynamic application security testing.
  • Cymulate lists Cymulate Platform and Cymulate Detection Studio. Fleuret AI lists Émile and Hortense.
  • Cymulate was founded in 2016.
  • Fleuret AI is privately held.

How they differ

CISO Tribune files both Cymulate and Fleuret AI under Breach simulation and automated pen-testing as the primary category, and files Fleuret AI under three more: Penetration testing and red team services, Static application security testing, and Dynamic application security testing. Cymulate sells the Cymulate Platform, which combines breach and attack simulation, exposure validation and remediation guidance, and Cymulate Detection Studio, which automates SIEM rule validation and detection tuning. Fleuret AI sells Émile, which runs pentests on applications, APIs and infrastructure and ships a replayable exploit with every finding, and Hortense, which tells customers what to test next, and when.

Cymulate says its simulations reproduce real attack techniques without executing actual malicious payloads. Fleuret AI says its proofs of concept are read-only and non-destructive, and that its reports are signed and mapped to DORA, NIS2 and ISO 27001. Fleuret AI sells pentests from 4,000 euros per test, and Hortense comes with every yearly plan.

Cymulate says it sells mainly to security operations, detection engineering, red teams and exposure management teams, from mid-market to enterprise. Fleuret AI publishes guides addressed to CISOs at credit institutions and at SaaS companies. On August 4, 2026, Cymulate announced Cymulate Cowork, the Cymulate Claude Plugin and the Cymulate MCP Server, plus plans for an integration with Bitsight.

What it sells: Cymulate

What Cymulate Platform does[3][6]
Cymulate turns validation into a continuous, adaptive process of agentic cyber defense engineering. The platform includes a daily feed of the latest threats with a 24-hour SLA for updated attack simulations for new US Cert threat advisories. Testing results create scorecards and benchmarks for security controls, MITRE ATT&CK coverage and specific threats.

What it sells: Fleuret AI

What Émile does[4][6]
A separate validator confirms every finding with a non-destructive exploit. Every finding ships with a working, replayable exploit. Each finding lands as a ticket with its exploit, an owner and a remediation, pushed to Jira, Linear or Slack.
What Hortense does[4][5][6]
Hortense maps a customer's estate from domain to database. Hortense crosses what changed in the code with what is exposed on the internet and what past pentests found. Hortense prepares the scope, and a person with launch rights starts the pentest, which Émile runs. Hortense comes with every yearly plan.

Questions about Cymulate and Fleuret AI

What do Cymulate and Fleuret AI sell?
Cymulate sells Cymulate Platform and Cymulate Detection Studio. Fleuret AI sells Émile and Hortense.
Are Cymulate and Fleuret AI in the same category?
Yes. Breach simulation and automated pen-testing is the primary category of both on CISO Tribune.
When were Cymulate and Fleuret AI founded?
Cymulate was founded in 2016.
Who owns Cymulate and Fleuret AI?
Fleuret AI is privately held.
Who are Cymulate and Fleuret AI sold to?
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. Its published guides address CISOs at credit institutions and at SaaS companies.
What have Cymulate and Fleuret AI announced recently?
August 4, 2026: Cymulate announced the introduction of Cymulate Cowork, the Cymulate Claude Plugin and the Cymulate MCP Server. October 5, 2026: Fleuret AI closed a €4M pre-seed round led by RAISE Ventures, with participation from Auriga Cyber Ventures, Wind Capital and Better Angle.

About Cymulate

Cymulate sells the Cymulate Platform, which turns validation into a continuous, adaptive process of agentic cyber defense engineering. Cymulate says manual testing and control updates can take days to adapt to new threats. With Vero AI, Cymulate says it understands new threats, tailors validation to the customer's environment and turns findings into prioritized actions and automated security control updates.[1][3][5][7]

Cymulate says its threat library has full MITRE ATT&CK coverage. The platform includes a daily feed of the latest threats with a 24-hour SLA for updated attack simulations for new US Cert threat advisories. Cymulate safely simulates real-world attack techniques across endpoints, networks, email, web gateways and cloud environments, with integrations to the controls and SIEM to prove both prevention and detection. Testing results create scorecards and benchmarks for security controls, MITRE ATT&CK coverage and specific threats. Cymulate combines breach and attack simulation, exposure validation and actionable remediation guidance in a single platform.[1][3][5][8]

For exposure management, Cymulate says customers can automate validation as part of a continuous threat exposure management program. Cymulate lets customers push vendor-specific threat mitigation and behavior rules for immediate prevention or detection. Cymulate Auto Mitigate deploys relevant IoCs to security controls after teams follow remediation guidance for validated gaps. The Cymulate + Bitsight integration creates a closed loop between adversary intelligence and continuous exposure validation. In the Cymulate Platform, Bitsight provides relevant adversaries, campaigns, ransomware groups, APTs, TTPs, IoCs and targeting trends that are then used to focus testing and validation workflows.[3][5][6][7]

On detection, Cymulate Detection Studio automates SIEM rule validation and detection tuning against real-world attacks. Cymulate says it transforms detection engineering from a manual, resource-intensive process into a continuous, automated lifecycle. Vero AI maps rules to attack scenarios, tests detection performance, identifies gaps and recommends or generates new rules. Cymulate generates Sigma rules and vendor-specific detection rules from validated gaps and provides guided tuning for the rules customers already have. Once deployed, rules are retested against the original attack scenario to confirm they improved detection. Cymulate simulations are production-safe: they reproduce the techniques and behavior of real attacks without executing actual malicious payloads or causing damage to systems or data.[3][7][8]

Cymulate says it is built for security teams that need continuous validation across their environment, 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 says it empowers executives, security operations and the whole security program to continuously prove, prioritize and adapt security for specific threats and exposures.[3][5][8]

Cymulate was founded by former IDF intelligence officers and cyber researchers. Cymulate says its platform runs on a private AWS tenant engineered for isolation, high availability, and redundancy across multiple regions. Cymulate does not collect or store sensitive Personal Identifying Information or PCI-DSS cardholder data. Cymulate states that data stored in databases and AWS is encrypted with AES-256. Cymulate has independent external auditor attestation across the Security, Availability, Confidentiality and Privacy Trust Services Criteria, and a public SOC 3 report.[3][8]

Cymulate on the record

Sources

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

Fleuret AI full record

  1. [1]fleuret.aiFleuret AI · fleuret.ai · undated page, accessed October 21, 2026 · Tier A
  2. [2]Fleuret raises €4M pre-seed for agentic pentestingFleuret AI · published October 5, 2026 · Tier A
  3. [3]About Fleuret | Agentic AI pentestingFleuret AI · undated page, accessed November 10, 2026 · Tier A
  4. [4]Fleuret | AI-powered automated pentestingFleuret AI · undated page, accessed November 10, 2026 · Tier A
  5. [5]Pricing | Pentest credits, platform included | FleuretFleuret AI · undated page, accessed November 10, 2026 · Tier A
  6. [6]Hortense, your offsec brain | Know what to test next, and when | FleuretFleuret AI · undated page, accessed November 10, 2026 · Tier A
  7. [7]SOC 2 and ISO 27001 cost calculator | FleuretFleuret AI · undated page, accessed November 10, 2026 · Tier A
  8. [8]Security Policy | FleuretFleuret AI · published March 11, 2026 · Tier A
  9. [9]Compliance Pentest Guides | DORA, NIS2, ISO 27001 | FleuretFleuret AI · undated page, accessed November 10, 2026 · Tier A

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