CISO Tribune

Vendor comparison · 2 companies

Hadrian vs Kai

Hadrian is an agentic AI offensive security platform that continuously discovers an organization's external attack surface and tests it for exploitable exposures. Kai is an AI company that sells the Kai Autonomous Defense Platform, an agentic AI platform for cyber asset management, application security, infrastructure vulnerability management, and detection engineering. CISO Tribune files both under External attack surface management. 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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  • Hadrian
  • Kai
Hadrian vs Kai: Products, Customers and Funding Compared
HadrianHadrian is an agentic AI offensive security platform that continuously discovers an organization's external attack surface and tests it for exploitable exposures.hadrian.ioKaiKai is an AI company that sells the Kai Autonomous Defense Platform, an agentic AI platform for cyber asset management, application security, infrastructure vulnerability management, and detection engineering.kai.security
What it sells
  • Atlas[1][4][5][6][7]Atlas continuously maps a company's external attack surface and validates exposures. Atlas discovers every domain, DNS record, IP, certificate, cloud service and app a company exposes.
  • Nova[1][4][5][9]Nova is an agentic penetration test powered by AI. Once pointed at an application, Nova's AI hacker agents work through it step by step until they can show real impact.
  • Kai Autonomous Defense Platform[4][13]An agentic AI platform that executes the exposure lifecycle end to end without human handoffs.
  • Continuous Threat Exposure Management (CTEM)[7]Runs all five CTEM phases and adds auto-remediation and detection as phases six and seven.
  • Kai Watch[7]Monitors telemetry to identify active exploitation while fixes are in progress.
  • AI-native SAST[15]A SAST capability in preview for select customers.
Categories
Headquarters
Not stated on its pagesSan Jose, United States
Founded
2021[2]Not stated on its pages
Ownership and funding
Privately held[5][6][11][16]Privately held[5]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • May 20, 2026Hadrian released OpenHack, a tool for AI-powered source code review.[14]
  • April 2, 2026Hadrian announced that its MCP server is live.[15]
  • July 29, 2026Kai announced findings from its 2026 State of Autonomous Defense Report and made its Auto Remediation capability available.[16]
  • March 10, 2026Kai emerged from stealth with $125 million in funding, led by Evolution Equity Partners with participation from N47 and strategic investors.[11]
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[16]
  • 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, Hadrian sells an agentic AI offensive security platform to modern security teams. Hadrian describes mapping the external attack surface of every company in a group, including new acquisitions and legacy infrastructure. Hadrian states that role-based access lets each subsidiary or business unit see and act on its own assets while the group security team keeps the full view. Hadrian says many customers use the platform as their continuous baseline and bring in manual testers for targeted deep dives. Hadrian is delivered from the cloud.From its own pages, the company sells mainly to enterprises. A blog post on its site says it has delivered autonomous security work for enterprises across multiple verticals. Its detection phase names SIEM, EDR, and XDR as the places where it deploys rules. It also says humans control the boundary between autonomous action and human review.
Last verified
October 30, 2026September 27, 2026

Where they overlap

  • Hadrian and Kai are both filed under External attack surface management.
  • Both are privately held.

Where they differ, field by field

  • Hadrian's primary category is External attack surface management; Kai's is AI SOC analysts.
  • Hadrian is also filed under Breach simulation and automated pen-testing and Exposure prioritisation and CTEM. Kai is also filed under Threat intelligence.
  • Hadrian lists Atlas and Nova. Kai lists Kai Autonomous Defense Platform, Continuous Threat Exposure Management (CTEM), Kai Watch and AI-native SAST.
  • Kai is headquartered in San Jose, United States.
  • Hadrian was founded in 2021.

What it sells: Hadrian

What Atlas does[1][4][5][6][7]
Atlas discovers assets, technologies and service points, then uses agentic AI to confirm which exposures are actually exploitable. Atlas runs passive scans every hour, and event-driven testing starts automatically when a new asset or change is detected. Atlas pricing is based on the total asset count. Atlas offers two add-ons at additional cost: mergers and acquisitions assessment and infostealers credential leak detection.

What it sells: Kai

What Kai Autonomous Defense Platform does[4][13]
The Kai Autonomous Defense Platform executes the exposure lifecycle end to end without human handoffs. Kai aggregates findings from existing security and IT systems, determines reachability and exploitability, discards what cannot be exploited, attaches evidence to what survives, and then remediates. Kai agents interrogate CMDB, endpoint, cloud, identity, scanning, and code systems, then rebuild each asset record from the evidence they find.
What Continuous Threat Exposure Management (CTEM) does[7]
Kai runs all five phases, then adds two more: it executes the assigned fix immediately, and it watches exposed assets with targeted detection rules until remediated. Auto-remediation sits at phase six, where Kai takes immediate action once a fix is assigned.
What Kai Watch does[7]
Kai Watch continuously monitors telemetry to identify active exploitation. Kai Watch deploys validated detection rules to contain risk across the environment while fixes are in progress. Kai Watch is part of the detection phase, which Kai places at phase seven once remediation is underway.
What AI-native SAST does[15]
Kai is releasing an AI-native SAST capability in preview for select customers. Kai applies AI-native reachability analysis from the start, combining static analysis with runtime behavior to determine whether a finding is actually exploitable before it reaches a human. Kai validated each finding by automatically generating exploits and running them in an out-of-band non-production environment.

Questions about Hadrian and Kai

What do Hadrian and Kai sell?
Hadrian sells Atlas and Nova. Kai sells Kai Autonomous Defense Platform, Continuous Threat Exposure Management (CTEM), Kai Watch and AI-native SAST.
Are Hadrian and Kai in the same category?
They share External attack surface management. Hadrian's primary category is External attack surface management and Kai's is AI SOC analysts.
Where are Hadrian and Kai headquartered?
Kai is headquartered in San Jose, United States.
When were Hadrian and Kai founded?
Hadrian was founded in 2021.
Who owns Hadrian and Kai?
Hadrian is privately held. Kai is privately held.
Who are Hadrian and Kai sold to?
From its own pages, Hadrian sells an agentic AI offensive security platform to modern security teams. From its own pages, the company sells mainly to enterprises.
What have Hadrian and Kai announced recently?
May 20, 2026: Hadrian released OpenHack, a tool for AI-powered source code review. July 29, 2026: Kai announced findings from its 2026 State of Autonomous Defense Report and made its Auto Remediation capability available.

About Hadrian

Hadrian is an agentic AI offensive security platform that continuously discovers an organization's external attack surface and tests it for exploitable exposures. Hadrian's Atlas and Nova products run on one platform, so exposures, pentests and evidence sit in one place. Atlas gives breadth across everything a company exposes, and Nova gives depth in the application that matters. Hadrian runs from the cloud and is ready in minutes.[1][3][4][7]

Atlas continuously maps a company's external attack surface and validates exposures. Atlas discovers assets, technologies and service points, then uses agentic AI to confirm which exposures are actually exploitable. Atlas discovers every domain, DNS record, IP, certificate, cloud service and app a company exposes, then tests all of it the way an attacker would. Atlas maps outward from the organization: subsidiaries and acquisitions, the domains each one registered, then every subdomain, IP, certificate and cloud host under them. Atlas starts from a few apex domains, maps how everything connects, flags what changed and proves which exposures are real. Atlas runs passive scans every hour, and event-driven testing starts automatically when a new asset or change is detected. Atlas matches a new CVE to the assets running the affected version, tests every one of them, and tells the customer which are really exposed.[7]

Hadrian's Orchestrator AI uses machine learning and pattern recognition to scan the internet for exposed assets tied to an organization, including Shadow IT. Hadrian continuously scans the internet to find forgotten subdomains, cloud instances and legacy servers that belong to an organization but are not in its official inventory. Hadrian's platform safely simulates real-world attack techniques to validate if a vulnerability is actually exploitable in the customer's specific environment. Hadrian only flags verified risks that have a confirmed path to compromise. Hadrian's agents safely test what they find and only raise what holds up, with the request, the response and the fix, and they check the fix when a risk is closed.[7][8]

Nova is an agentic penetration test powered by AI that performs the same techniques a skilled human pentester would, including reconnaissance, exploitation and lateral movement. Nova's agents sign in as every role, learn how an app's business logic works and chain small steps into real impact. Nova's testing stays within the scope the customer sets, at the pace the customer chooses, without changing a single record. Nova customers receive access to the Hadrian platform to see results and get a compliance-ready pdf report. Atlas's asset discovery and exposure mapping feeds directly into Nova, so penetration tests are automatically scoped against the real attack surface.[4][9]

Hadrian's hacker agents test the external attack surface continuously, chain what they find into attack paths, and report only the paths they can prove. Hadrian does not replace a scoped red team exercise, and internal networks, social engineering and physical access stay with the customer's human red team.[10]

Hadrian maps the external attack surface of every company in a group, including new acquisitions and legacy infrastructure, and starts testing it as soon as the deal closes. Hadrian uses ownership signals from DNS, certificates and registration records, and a customer's team can confirm or correct attribution in the platform. Role-based access lets each subsidiary or business unit see and act on its own assets, while the group security team keeps the full view. Hadrian connects to multiple cloud environments with a few clicks, providing a centralized view of exposed assets. Hadrian identifies exposed cloud assets and misconfigurations that could enable lateral movement and privilege escalation. Hadrian's ML algorithms prioritize risks based on business relevance, asset attractiveness, discoverability, impact and exploitation ease.[12]

Hadrian allows teams to assign leads, share risk details with third parties, track remediation progress and collaborate in a shared space. Hadrian's risk details include severity, impact, proof of concept and remediation steps.[1][3][9][13]

Hadrian on the record

Sources

Hadrian full record

  1. [1]hadrian.ioHadrian · hadrian.io · undated page, accessed October 30, 2026 · Tier A
  2. [2]CompanyHadrian · hadrian.io · undated page, accessed October 30, 2026 · Tier A
  3. [3]Agentic Penetration Testing | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  4. [4]Offensive Security Platform: Atlas + Nova | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  5. [5]Know your attack surface, pentest it continuously | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  6. [6]Atlas: Continuous Attack Surface Management | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  7. [7]Continuous Attack Surface Management | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  8. [8]Adversarial Exposure Validation (AEV) | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  9. [9]Nova: On-Demand Agentic Pentesting | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  10. [10]Automated Red Teaming for Your Attack Surface | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  11. [11]Acquisition and Subsidiary Attack Surface | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  12. [12]Cloud Exposure Visibility & Control | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  13. [13]Threat Exposure Management (CTEM) | HadrianHadrian · undated page, accessed November 10, 2026 · Tier A
  14. [14]Hadrian releases OpenHack for AI vulnerability discoveryHadrian · published May 20, 2026 · Tier A
  15. [15]Hadrian's MCP server is liveHadrian · published April 2, 2026 · Tier A
  16. [16]Hadrian Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

Kai full record

  1. [1]kai.securityKai · kai.security · undated page, accessed September 27, 2026 · Tier A
  2. [2]Kai emerges from stealth with 125m powering machine speed defense to outpace ai enabled adversaries 302708978Kai via PR Newswire · prnewswire.co.uk · published March 10, 2026 · Tier A
  3. [3]kai.securityKai Cyber Inc. · kai.security · undated page, accessed September 27, 2026 · Tier A
  4. [4]Kai Autonomous Defense Platform | End-to-End Agentic Risk ReductionKai · undated page, accessed October 26, 2026 · Tier A
  5. [5]PlatformKai · undated page, accessed October 26, 2026 · Tier A
  6. [6]We Aren’t Building a Better Tool. We’re Rebuilding Security. | Kai AI-Native Autonomous Defense PlatformKai · published March 10, 2026 · Tier A
  7. [7]Continuous Threat Exposure Management | Solutions at KaiKai · undated page, accessed October 26, 2026 · Tier A
  8. [8]Our Story & Manifesto | Kai Agentic AI PlatformKai · undated page, accessed October 26, 2026 · Tier A
  9. [9]Cyber Asset Attack Surface ManagementKai · undated page, accessed October 26, 2026 · Tier A
  10. [10]Mythos | Solutions at KaiKai · undated page, accessed October 26, 2026 · Tier A
  11. [11]Kai Emerges from Stealth with $125M, Powering Machine-Speed Defense to Outpace AI-Enabled AdversariesKai · published March 10, 2026 · Tier A
  12. [12]Kai Appoints Alfredo Hickman as CISO to Usher in the Future of AI-Driven Security | Kai Autonomous Defense PlatformKai · undated page, accessed November 10, 2026 · Tier A
  13. [13]New Research from Kai: UK CISOs Face a Widening AI Security Gap as Attackers Gain the Advantage | Kai Autonomous Defense PlatformKai · published September 21, 2026 · Tier A
  14. [14]Joining Kai as CISO: Rebuilding Security for the AI Era | Kai Autonomous Defense PlatformKai · undated page, accessed November 10, 2026 · Tier A
  15. [15]Kai product update: AI-native SAST and deeper vulnerability validation through membership in Anthropic's Cyber Verification Program | Kai Autonomous Defense PlatformKai · undated page, accessed November 10, 2026 · Tier A
  16. [16]New Research from Kai: CISOs Say AI Is Accelerating Cyber Threats, Driving the Shift to Machine-Led SecurityPR Newswire · published July 29, 2026 · Tier A

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