CISO Tribune

Vendor comparison · 2 companies

Pentera vs Promptfoo

Pentera sells a platform that combines AI-powered adversarial testing, risk-based prioritization, and automated remediation into one workflow. Promptfoo builds open-source tools for secure, reliable AI applications. 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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  • Pentera
  • Promptfoo
Pentera vs Promptfoo: Products, Customers and Funding Compared
PenteraPentera sells a platform that combines AI-powered adversarial testing, risk-based prioritization, and automated remediation into one workflow.pentera.ioPromptfooPromptfoo builds open-source tools for secure, reliable AI applications.promptfoo.dev
What it sells
  • Pentera Platform[4][8]A platform that combines AI-powered adversarial testing, risk-based prioritization, and automated remediation.
  • Pentera Resolve[4][10]Remediation workflows for validated findings.
  • Automated Pentesting[4][10]Automated pentests that teams launch whenever their environment changes.
  • Automated Red Teaming[4][11]Software-driven adversary emulation on demand.
  • Security Validation Advisory (SVA)[6]Practitioners who guide and refine a customer's exposure validation strategy.
  • Red Teaming[2][4][5]Simulates real users to uncover application-specific vulnerabilities.
  • Evaluations[2][5]LLM evaluation of prompts and models that can run inside CI workflows.
Categories
Headquarters
Boston, United StatesSan Francisco, United States[1][3]
Founded
2015[1][9]2024[1][12]
Ownership and funding
Privately held[2][4][5][6][7]Owned by OpenAI[12]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • March 9, 2026OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.[13]
  • March 9, 2026OpenAI announced it has acquired Promptfoo, an AI security startup founded in 2024 to protect LLMs from adversarial attacks.[12]
G2 and Gartner Peer Insights
  • G2: listed, seen November 3, 2026[7]
  • 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, Pentera sells mainly to security teams that want to test their defenses against real attacks, whether or not they have a red team. Pentera says organizations without dedicated red team resources and existing red teams can both use its automated red teaming. Pentera says SecVal gives the CISO fresh data on the true impact of threats on the business. Its advisory service draws on experience across financial services, healthcare, manufacturing and critical infrastructure. Pentera says its platform supports every phase of CTEM, so programs built around that approach are a stated focus.Not written yet
Last verified
November 2, 2026November 4, 2026

Where they overlap

  • Pentera and Promptfoo are both filed under Breach simulation and automated pen-testing.
  • Both are headquartered in the United States.

Where they differ, field by field

  • Pentera's primary category is Breach simulation and automated pen-testing; Promptfoo's is AI model and agent security.
  • Promptfoo is also filed under AI firewalls and guardrails and Static application security testing.
  • Pentera lists Pentera Platform, Pentera Resolve, Automated Pentesting, Automated Red Teaming and Security Validation Advisory (SVA). Promptfoo lists Red Teaming and Evaluations.
  • Pentera is headquartered in Boston, United States. Promptfoo is headquartered in San Francisco, United States.
  • Pentera was founded in 2015. Promptfoo was founded in 2024.
  • Pentera is privately held. Promptfoo is owned by OpenAI.

What it sells: Pentera

What Pentera Platform does[4][8]
The Pentera Platform automates exposure management from find to fix. Proven security risks found during adversarial testing move directly into Pentera's automated remediation. Findings from Pentera Core, Cloud and Surface are aggregated into a single, unified view.
What Pentera Resolve does[4][10]
Pentera Resolve mobilizes remediation through automated workflows. Teams consolidate findings, assign ownership, route tickets, track SLAs, and automatically retest fixes.
What Automated Pentesting does[4][10]
Automated pentesting helps teams test continuously, validate real exploitable exposure, and measure risk reduction over time. Teams can launch pentests without waiting for consultants, scheduling engagements, or adding headcount. Tests can start with a few clicks, a scheduled scenario, or a natural-language prompt through an LLM via Pentera's MCP server.
What Automated Red Teaming does[4][11]
Pentera's automated red teaming replicates real-world attacker behavior on demand and at enterprise scale. Pentera says it is designed to expand access to adversarial testing, not replace it.
What Security Validation Advisory (SVA) does[6]
Security Validation Advisory (SVA) draws on insights from thousands of enterprise customers and decades of hands-on experience in penetration testing, red teaming, and offensive security consulting. Customers work directly with offensive security practitioners who guide and refine their exposure validation strategy.

What it sells: Promptfoo

What Red Teaming does[2][4][5]
Promptfoo creates thousands of context-aware attacks tailored to the customer's application. The open-source Community version includes up to 10k probes per month at no charge.
What Evaluations does[2][5]
Promptfoo's LLM evaluation can be integrated into a CircleCI pipeline. Promptfoo can be integrated with test frameworks like Jest and Vitest to evaluate prompts as part of existing testing and CI workflows. Promptfoo provides real-time alerts and automated evaluations to show LLM security status across all projects.

Questions about Pentera and Promptfoo

What do Pentera and Promptfoo sell?
Pentera sells Pentera Platform, Pentera Resolve, Automated Pentesting, Automated Red Teaming and Security Validation Advisory (SVA). Promptfoo sells Red Teaming and Evaluations.
Are Pentera and Promptfoo in the same category?
They share Breach simulation and automated pen-testing. Pentera's primary category is Breach simulation and automated pen-testing and Promptfoo's is AI model and agent security.
Where are Pentera and Promptfoo headquartered?
Pentera is headquartered in Boston, United States. Promptfoo is headquartered in San Francisco, United States.
When were Pentera and Promptfoo founded?
Pentera was founded in 2015. Promptfoo was founded in 2024.
Who owns Pentera and Promptfoo?
Pentera is privately held. Promptfoo is owned by OpenAI.
Who are Pentera and Promptfoo sold to?
From its own pages, Pentera sells mainly to security teams that want to test their defenses against real attacks, whether or not they have a red team.
What have Pentera and Promptfoo announced recently?
March 9, 2026: OpenAI agreed to buy Promptfoo, a startup helping businesses find and fix security issues in AI models during development.

About Pentera

Pentera sells a platform that combines AI-powered adversarial testing, risk-based prioritization, and automated remediation into one workflow. Pentera says the platform tests across internal networks, external assets, cloud, web applications, APIs and hybrid environments. Pentera says it has been defining the exposure validation market since 2015.[3][8]

The Pentera Platform automates exposure management from find to fix. Proven security risks found during adversarial testing move directly into Pentera's automated remediation. Pentera Core, Cloud and Surface findings are aggregated, along with alerts from the wider cyber stack, into a single, unified view. Pentera Resolve mobilizes remediation through automated workflows, and teams use it to consolidate findings, assign ownership, route tickets, track SLAs, and retest fixes. Pentera applies an AI governance framework aligned with ISO/IEC 42001. Pentera says data is never used for model training and that Pentera does not retain any data.[8][10]

Automated pentesting helps teams test continuously, validate real exploitable exposure, and measure risk reduction over time. Teams can launch automated pentests whenever their environment changes, without waiting for consultants, scheduling engagements, or adding headcount. Pentera says a test can be started with a few clicks, a scheduled scenario, or a natural-language prompt through an LLM via Pentera's MCP server.[10]

Pentera describes its automated red teaming as software-driven adversary emulation that replicates real-world attacker behavior on demand and at enterprise scale. Pentera says organizations without dedicated red team resources can gain access to offensive security capabilities, while existing red teams can automate repeatable exercises. Automated red teaming can safely emulate the tactics and behaviors of ransomware groups including LockBit, Cl0p, BlackCat (ALPHV), Conti, REvil, Maze, Play, and Qilin. Pentera says it is built to safely emulate attacker behavior in production environments with controlled testing, approval workflows, audit logging, and automated cleanup.[11]

Pentera puts web applications and APIs to the test against its autonomous AI attacker. Pentera says its autonomous web app testing harnesses AI through customer-defined boundaries. Pentera tests applications behind SSO, MFA, and OAuth for weaknesses in session handling, token validation, account boundaries, and privilege transitions. Pentera takes a signal from a supported threat intelligence source and translates it into a targeted test. Pentera safely executes a focused adversarial test mapped to MITRE ATT&CK and provides evidence of any exploitable exposure or attack paths.[12][13]

Security Validation Advisory (SVA) draws on insights from thousands of enterprise customers and decades of hands-on experience in penetration testing, red teaming, and offensive security consulting. Pentera says customers work directly with seasoned offensive security practitioners who guide and refine their exposure validation strategy. SECTOR11 red teamers complement Pentera's platform by executing complex testing across applications, cloud, AI, and edge-case scenarios. Each SECTOR11 engagement delivers audit-ready attestation aligned with frameworks such as ISO 27001, SOC 2, PCI DSS, HIPAA, GDPR, and NIS2. Deliverables from a SECTOR11 engagement include a signed report with validated attack execution and confirmed access obtained. SECTOR11 uses outputs from Pentera's Exposure Management Platform as context, and engagement findings feed back into the platform to support revalidation.

Pentera maps validated findings to controls and records runs, revalidation results, and control responses. Pentera's advisors bring cross-industry intelligence from financial services and healthcare to manufacturing and critical infrastructure. Pentera says its growth and global expansion are supported by investors including Evolution Equity Partners, Insight Partners, K1 Investment Management, AWZ Ventures, Blackstone, and Farallon Capital Management. Pentera says it has teams across North America, Europe, Asia-Pacific, and beyond.[8][10][12][14]

Pentera on the record

Sources

Pentera full record

  1. [1]About usPentera · pentera.io · undated page, accessed September 27, 2026 · Tier A
  2. [2]Pentera secures 60m to lead security validation market consolidation and drive next phase of growth 302399599Pentera via PR Newswire · prnewswire.com · published March 12, 2025 · Tier A
  3. [3]Pentera nabs 60m at a 1b valuation to build simulated network attacks to train security teamsTechCrunch · techcrunch.com · published March 12, 2025 · Tier B
  4. [4]Pentera | Exposure Validation Platform | AI-Driven TestingPentera · undated page, accessed October 27, 2026 · Tier A
  5. [5]Red Team & Offensive Security Services | PenteraPentera · undated page, accessed October 27, 2026 · Tier A
  6. [6]Security Validation Advisory & Cyber Risk Consulting | PenteraPentera · undated page, accessed October 27, 2026 · Tier A
  7. [7]Pentera Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 27, 2026 · Tier C
  8. [8]Pentera | Security Validation Platform for Exposure ReductionPentera · undated page, accessed November 3, 2026 · Tier A
  9. [9]About Pentera | Proactive Security ValidationPentera · undated page, accessed November 3, 2026 · Tier A
  10. [10]Automated Pentesting - PenteraPentera · undated page, accessed November 3, 2026 · Tier A
  11. [11]Red Teaming - PenteraPentera · undated page, accessed November 3, 2026 · Tier A
  12. [12]AI-Native Web Application Testing - PenteraPentera · undated page, accessed November 3, 2026 · Tier A
  13. [13]Automated Threat-Led Penetration Testing (TLPT) - PenteraPentera · undated page, accessed November 3, 2026 · Tier A
  14. [14]What Is Automated Security Validation (ASV)?Pentera · undated page, accessed November 3, 2026 · Tier A

Promptfoo full record

  1. [1]PressPromptfoo · promptfoo.dev · undated page, accessed November 4, 2026 · Tier A
  2. [2]promptfoo.devPromptfoo · promptfoo.dev · undated page, accessed November 4, 2026 · Tier A
  3. [3]About Promptfoo | AI Security Experts | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  4. [4]Build Secure AI Applications | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  5. [5]Pricing | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  6. [6]Setting up Promptfoo with CircleCI | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  7. [7]Testing prompts with Jest and Vitest | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  8. [8]Finding LLM Jailbreaks with Burp Suite | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  9. [9]SharePoint Integration | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  10. [10]Langfuse integration | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  11. [11]AI Security for Real Estate | PromptfooPromptfoo · undated page, accessed November 10, 2026 · Tier A
  12. [12]OpenAI acquires Promptfoo to secure its AI agents | TechCrunchTechCrunch · published March 9, 2026 · Tier B
  13. [13]OpenAI Buying AI Security Startup Promptfoo to Safeguard AI Agents - BloombergBloomberg · published March 9, 2026 · Tier B

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