CISO Tribune

Vendor comparison · 2 companies

Assail vs Astra Security

Assail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach. Astra Security sells a platform that performs continuous offensive pentests across apps, APIs and cloud. CISO Tribune files both under API security. 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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  • Assail
  • Astra Security
Assail vs Astra Security: Products, Customers and Funding Compared
AssailAssail 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.comAstra SecurityAstra Security sells a platform that performs continuous offensive pentests across apps, APIs and cloud.getastra.com
What it sells
  • 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.
  • DAST Scanner[3][7]Dynamic vulnerability scanning with authenticated scans behind login screens.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pages2018[2]
Ownership and funding
Privately heldPrivately held[6][7]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • 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]
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
From 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.Not written yet
Last verified
October 21, 2026November 13, 2026

Where they overlap

  • Assail and Astra Security are both filed under API security.
  • Both are privately held.

Where they differ, field by field

  • Assail's primary category is Breach simulation and automated pen-testing; Astra Security's is Penetration testing and red team services.
  • Assail is also filed under Mobile security. Astra Security is also filed under Dynamic application security testing and Vulnerability management.
  • Assail lists Ares, Reaper and Assail Anywhere. Astra Security lists DAST Scanner.
  • Astra Security was founded in 2018.

What it sells: Assail

What Ares does[1][3][4][5][6][7][9][10][11][12]
Ares uses coordinated AI agents to discover weaknesses and validate what an attacker could actually reach. It tests authenticated applications through the existing identity provider and tracks changes across known and shadow APIs. Ares delivers the evidence behind each confirmed risk.
What Reaper does[3]
Assail describes Reaper as built for military, federal, and intelligence missions. Assail has expanded Reaper's sovereign deployment architecture to AWS GovCloud and Google Cloud Assured Workloads.

What it sells: Astra Security

What DAST Scanner does[3][7]
DAST Scanner is dynamic vulnerability scanning. Its scans cover CVEs and access control flaws. Authenticated scans run behind login screens. Integrations include CI/CD, Slack and Jira. Scan results and security posture can be shared with the Trust Center.

Questions about Assail and Astra Security

What do Assail and Astra Security sell?
Assail sells Ares, Reaper and Assail Anywhere. Astra Security sells DAST Scanner.
Are Assail and Astra Security in the same category?
They share API security. Assail's primary category is Breach simulation and automated pen-testing and Astra Security's is Penetration testing and red team services.
When were Assail and Astra Security founded?
Astra Security was founded in 2018.
Who owns Assail and Astra Security?
Assail is privately held. Astra Security is privately held.
Who are Assail and Astra Security sold to?
From its own pages, Assail sells mainly to security teams in manufacturing, financial services, federal and state government, automotive, retail, and defense.
What have Assail and Astra Security announced recently?
November 4, 2026: Assail, Inc. announced Cassandra, a proactive AI agent integrated into its Ares platform, along with expanded threat modeling capabilities tied to autonomous security testing.

About Assail

Assail sells Ares, an autonomous offensive security platform that tests applications, APIs, mobile apps and AI systems and shows what an attacker could actually reach.[1]

Assail says Ares continuously tests applications, APIs, mobile apps, and AI systems as they change. Ares follows attack paths, exploits weaknesses, and proves what an attacker could actually reach. Coordinated AI agents extend testing capacity, and Ares tests authenticated applications through the customer's existing identity provider. Ares also tracks changes across known and shadow APIs and delivers the evidence behind each confirmed risk.[3]

Assail describes Ares as combining autonomous red teaming, attack surface management, and Shadow AI discovery across web, API, mobile, and supported AI environments, with applicable MITRE ATLAS coverage. The Ares platform is powered by Assail's domain-adapted model for security reasoning and tool use.[3][7]

On deployment, Assail says Ares can run within the customer's own infrastructure, even in disconnected environments. With Assail Anywhere, the entire platform, including the AI model, deploys on-premises, inside isolated and air-gapped networks, in the customer's own cloud, or through Assail's SaaS. Assail has also announced that it expanded Reaper's sovereign deployment architecture to AWS GovCloud and Google Cloud Assured Workloads.[3]

Assail names Ares, Reaper, and Scorpion as the products taken to the fight. Reaper is described as autonomous offensive cyber operations built for military, federal, and intelligence missions.[3]

Assail publishes industry pages for manufacturing, financial services, federal and state government, automotive, retail, and defense. In manufacturing, Ares validates systems such as ERP, MES, PLM, supplier portals, industrial APIs, and connected products. In financial services, Ares validates APIs, payment rails, mobile banking apps, and open banking integrations. For retail, Ares validates e-commerce web apps, mobile shopping apps, loyalty APIs, and gift card platforms. In automotive it covers telematics APIs, OTA infrastructure, and mobile companion apps.[4][5][6][9][10]

Assail says its team brings 26 years of offensive security experience. Assail also publishes original research on attack techniques and the exploitation of AI and API surfaces. A customer, Branch, says Ares helps its security team increase penetration testing frequency and validate remediations faster.[1][2][3][4][5][6][8]

Assail on the record

Sources

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

Astra Security full record

  1. [1]getastra.comAstra Security · getastra.com · undated page, accessed November 13, 2026 · Tier A
  2. [2]Astra Security Raises Funding to Simplify Cybersecurity With AI Driven PentestingBusiness Wire · businesswire.com · published February 5, 2025 · Tier A
  3. [3]Astra Security - AI Powered Continuous Pentest PlatformAstra Security · undated page, accessed November 13, 2026 · Tier A
  4. [4]Top VAPT Companies in DelhiAstra Security · undated page, accessed November 13, 2026 · Tier A
  5. [5]The State of Cloud Security 2026 | Astra WebinarAstra Security · undated page, accessed November 13, 2026 · Tier A
  6. [6]Fintech Penetration Testing | Secure Your Financial Platform with AstraAstra Security · undated page, accessed November 13, 2026 · Tier A
  7. [7]InsuranceAstra Security · undated page, accessed November 13, 2026 · Tier A
  8. [8]Security research and credentials of Astra's world-class security engineers & pentesters.Astra Security · undated page, accessed November 13, 2026 · Tier A
  9. [9]SaaS Security Audit & Pentest Checklist | AstraAstra Security · undated page, accessed November 13, 2026 · Tier A
  10. [10]International SOS Secures 200+ Apps with AstraAstra Security · undated page, accessed November 13, 2026 · Tier A
  11. [11]SmartWinnr is Security Smart With Astra SecurityAstra Security · undated page, accessed November 13, 2026 · Tier A
  12. [12]ServerGuy Case Study | Astra PentestAstra Security · undated page, accessed November 13, 2026 · Tier A

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