CISO Tribune

Vendor comparison · 2 companies

Fleuret AI vs Red Sentry

Fleuret AI sells pentesting that combines artificial intelligence and offensive expertise. Red Sentry sells offensive security services, from one-off penetration tests to ongoing PTaaS (Penetration Testing as a Service) partnerships. CISO Tribune files both under Breach simulation and automated pen-testing and Penetration testing and red team services. 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.

Change the companies

Up to four companies side by side.

  • Fleuret AI
  • Red Sentry
Fleuret AI vs Red Sentry: Products, Customers and Funding Compared
Fleuret AIFleuret AI sells pentesting that combines artificial intelligence and offensive expertise.fleuret.aiRed SentryRed Sentry sells offensive security services, from one-off penetration tests to ongoing PTaaS (Penetration Testing as a Service) partnerships.redsentry.com
What it sells
  • 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.
  • PTaaS[1][3][5]A platform that gives teams a central place to track findings, remediation, retesting, communication, and report delivery.
  • Source Code Review[7]Tool-assisted static analysis paired with manual security review and validation.
  • Red Teaming[4]A simulated full-scale attack that tests an organization's people, processes, and technology.
  • Physical Security Assessment[9]Tests whether physical controls, people, and processes prevent unauthorized access to agreed locations and objectives.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Privately heldNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • 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]
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
Who it fits
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.From its own pages, Red Sentry sells its testing services to organizations of all sizes. For mature security teams, Red Sentry offers advanced Red Teaming and adversary simulation. Red Sentry addresses buyers whose auditors require more than a scan. Red Sentry reviews both traditionally developed and AI-assisted codebases.
Last verified
October 21, 2026November 13, 2026

Where they overlap

  • Fleuret AI and Red Sentry are both filed under Breach simulation and automated pen-testing and Penetration testing and red team services.

Where they differ, field by field

  • Fleuret AI's primary category is Breach simulation and automated pen-testing; Red Sentry's is Penetration testing and red team services.
  • Fleuret AI is also filed under Static application security testing and Dynamic application security testing. Red Sentry is also filed under Vulnerability management.
  • Fleuret AI lists Émile and Hortense. Red Sentry lists PTaaS, Source Code Review, Red Teaming and Physical Security Assessment.
  • Fleuret AI is privately held.

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.

What it sells: Red Sentry

What PTaaS does[1][3][5]
PTaaS means penetration testing as a service. Every Red Sentry engagement includes full access to the PTaaS platform at no extra cost. The platform offers Jira integration for pushing remediation tickets to engineering teams. Portal access lets teams track project status, access reports and evidence, and manage remediation.
What Source Code Review does[7]
Source code review is a standalone Red Sentry service. Red Sentry reviews traditionally developed and AI-assisted codebases using the same human-led security review process. One round of remediation testing is included when requested within 90 days of report delivery, unless otherwise scoped.
What Red Teaming does[4]
Red Sentry follows the MITRE ATT&CK framework to simulate the entire lifecycle of a breach. Red team work includes testing endpoint protection (EDR/AV) by attempting to execute custom malware or tools. Red Sentry collaborates with the Blue Team to explain how controls were bypassed.
What Physical Security Assessment does[9]
Physical security assessment is a standalone Red Sentry service. Red Sentry agrees written authorization and rules of engagement before testing starts. Findings are documented with photographic evidence, steps to recreate them, severity, and remediation guidance.

Questions about Fleuret AI and Red Sentry

What do Fleuret AI and Red Sentry sell?
Fleuret AI sells Émile and Hortense. Red Sentry sells PTaaS, Source Code Review, Red Teaming and Physical Security Assessment.
Are Fleuret AI and Red Sentry in the same category?
They share Breach simulation and automated pen-testing and Penetration testing and red team services. Fleuret AI's primary category is Breach simulation and automated pen-testing and Red Sentry's is Penetration testing and red team services.
Who owns Fleuret AI and Red Sentry?
Fleuret AI is privately held.
Who are Fleuret AI and Red Sentry sold to?
Its published guides address CISOs at credit institutions and at SaaS companies. From its own pages, Red Sentry sells its testing services to organizations of all sizes.
What have Fleuret AI and Red Sentry announced recently?
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 Fleuret AI

Fleuret AI sells pentesting that combines artificial intelligence and offensive expertise. Fleuret uses agentic AI to simulate real attacks on its customers' systems. Émile runs pentests on customer applications, APIs and infrastructure and ships a replayable exploit with every finding. Hortense tells customers what to test next, and when. Fleuret states that its service is built and hosted in Europe.[1][3][4]

A separate validator confirms every finding with a non-destructive exploit. Several agents test the surface at once and reproduce every finding before it is reported. Every finding ships with a working, replayable exploit, and a finding that cannot be reproduced is left out of the report. Fleuret states that proofs of concept are read-only and non-destructive. Fleuret states that its orchestration is deterministic code, not a free-running model, and that it ends in a signed report.[4][5]

Each finding becomes a ticket with its exploit, an owner and a remediation, pushed to Jira, Linear or Slack. Customers can launch a full pentest the day an application changes and can re-test a fix whenever they want. Fleuret reports contain a replayable exploit for every finding, logged re-tests, the coverage of what was tested and held, and a signed report mapped to DORA, NIS2 and ISO 27001.[4]

Hortense maps a customer's estate from domain to database and crosses what changed in the code with what is exposed on the internet and what past pentests found. Hortense connects what a customer already has into a view of risk: what to test, what to fix first, what can wait, and why. For each application, Hortense weighs the last pentest, what changed since, and how close it sits to a crown jewel. Hortense then recommends a pentest with its reasons and prepares it, and the customer approves it. Hortense prepares the scope, and a person with launch rights starts the pentest, which Émile runs. Hortense comes with every yearly plan.[1][4][6]

Fleuret sells pentests from 4,000 euros per test. Each extra credit costs €4,000, whatever the plan. Credits are valid for the subscription year and do not carry over to the next one. A first pentest is credited in full against a yearly plan taken within 60 days.[5][7]

Hosting and inference run on Scaleway in Paris, which Fleuret describes as a European provider. Fleuret runs open-weight models (gpt-oss, Kimi K2.5) on H100 GPUs at Scaleway in Paris. Engagement data does not leave that environment to reach a third-party model API. Engagement data, namely vulnerabilities, exploitation evidence and reports, is retained for 18 months in a per-client segmented European environment, then deleted. Fleuret AI states that stored data is encrypted with AES-256 and that communications use TLS 1.2 or higher. Fleuret AI states that its production data is hosted in data centers within the European Union. Fleuret AI states that it is compliant with the General Data Protection Regulation. Fleuret AI gives its address as 60 Rue François 1er, 75008 Paris, France.[4][8]

Fleuret AI publishes practical guides for CISOs scoping penetration testing under DORA, NIS2, ISO 27001, SOC 2 and PCI DSS. One guide covers how SaaS CISOs decide scope and evidence pentest against Article 21(2)(e) and 21(2)(f).[1][4][5][9]

Fleuret AI on the record

Sources

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

Red Sentry full record

  1. [1]redsentry.comRed Sentry · redsentry.com · undated page, accessed November 13, 2026 · Tier A
  2. [2]DetailsRed Sentry · app.redsentry.com · undated page, accessed November 13, 2026 · Tier A
  3. [3]Red Sentry | Human-Led Penetration Testing & PTaaSRed Sentry · undated page, accessed November 13, 2026 · Tier A
  4. [4]Penetration Testing & Offensive Security Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  5. [5]Web Application Penetration Testing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  6. [6]API Penetration Testing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  7. [7]Secure Code Review Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  8. [8]Cloud Penetration Testing (AWS, Azure, GCP) | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  9. [9]Physical Security Pentesting | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  10. [10]Red Teaming Services: Objective-Based Attack Sims | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  11. [11]Social Engineering & Phishing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  12. [12]SOC 2 Penetration Testing Support | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  13. [13]Network Pen Testing (Internal & External) | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  14. [14]Pen Testing Services for Modern Organizations | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A

Spot a factual error? Request a correction.