CISO Tribune

Vendor comparison · 2 companies

Astra Security vs Millennium Corporation

Astra Security sells a platform that performs continuous offensive pentests across apps, APIs and cloud. Millennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector. CISO Tribune files both under 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.

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  • Astra Security
  • Millennium Corporation
Astra Security vs Millennium Corporation: Products, Customers and Funding Compared
Astra SecurityAstra Security sells a platform that performs continuous offensive pentests across apps, APIs and cloud.getastra.comMillennium CorporationMillennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector.millgroupinc.com
What it sells
  • DAST Scanner[3][7]Dynamic vulnerability scanning with authenticated scans behind login screens.
  • Zero Trust[7]Adversarial testing of networks to confirm they are Zero Trust.
Categories
Headquarters
Not stated on its pagesArlington, VA, United States[1][4]
Founded
2018[2]Not stated on its pages
Ownership and funding
Privately held[6][7]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot 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
Not written yetNot written yet
Last verified
November 13, 2026October 30, 2026

Where they overlap

  • Penetration testing and red team services is the primary category of both Astra Security and Millennium Corporation.

Where they differ, field by field

  • Astra Security is also filed under Dynamic application security testing, API security and Vulnerability management. Millennium Corporation is also filed under MDR and managed SOC and Security consulting and advisory.
  • Astra Security lists DAST Scanner. Millennium Corporation lists Zero Trust.
  • Millennium Corporation is headquartered in Arlington, VA, United States.
  • Astra Security was founded in 2018.
  • Astra Security is privately held.

How they differ

CISO Tribune files both Astra Security and Millennium Corporation under penetration testing and red team services as the primary category. Astra Security sells a PTaaS (Penetration Testing as a Service) platform that combines automated scanning with expert manual assessments. Its offerings also include a DAST scanner and an API security platform, plus cloud scanning across AWS, Azure and GCP. Millennium Corporation sells red team operations and cyber training, and its Zero Trust offering tests networks adversarially to confirm they are Zero Trust. Its red team assessments normally contain a physical security aspect, and operators may attempt to physically infiltrate a server room.

Astra Security is based in Delhi and is privately held. Millennium Corporation is headquartered in Arlington, VA, United States, and describes itself as a founder-led company. CISO Tribune also files Millennium Corporation under MDR and managed SOC and security consulting and advisory. Millennium Corporation operates a secure 10,000 sq.ft. facility that includes training and the Cyber Threat Operations Center.

Astra Security names International SOS, which selected it for a platform-driven approach to penetration testing, and SmartWinnr, whose web, iOS and Android applications and AWS infrastructure it scanned. Astra Security also sells penetration testing security to insurance providers. Millennium Corporation names clients across the Department of Defense, federal civilian agencies, and the private sector. It also names k>fivefour as its partner for hands-on cyber operations training for cybersecurity professionals.

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.

What it sells: Millennium Corporation

What Zero Trust does[7]
Millennium Corporation uses an adversarial mindset to test networks and confirm that they are Zero Trust. The testing checks that users can only access authorized files, that an unauthorized user cannot grant themselves additional permissions, and that the network is constantly validating every user at every interaction.

Questions about Astra Security and Millennium Corporation

What do Astra Security and Millennium Corporation sell?
Astra Security sells DAST Scanner. Millennium Corporation sells Zero Trust.
Are Astra Security and Millennium Corporation in the same category?
Yes. Penetration testing and red team services is the primary category of both on CISO Tribune.
Where are Astra Security and Millennium Corporation headquartered?
Millennium Corporation is headquartered in Arlington, VA, United States.
When were Astra Security and Millennium Corporation founded?
Astra Security was founded in 2018.
Who owns Astra Security and Millennium Corporation?
Astra Security is privately held.

About Astra Security

Astra Security sells a platform that performs continuous offensive pentests across apps, APIs and cloud. Astra Security is a penetration testing company in Delhi that specializes in protecting websites and businesses online. Astra Security's VAPT services cover websites, web apps, mobile apps, cloud infrastructure, network devices and emerging technologies like blockchain. Astra Security finds vulnerabilities and verifies the fixes that the customer's team implements.[1][3][4][5]

Astra Security offers a PTaaS (Penetration Testing as a Service) platform. Astra Security's continuous pentesting combines automated scanning with expert manual assessments. Astra Security's continuous pentesting covers every new feature a customer builds. Astra Security runs manual pentests in 8-15 business days. Astra Security provides two re-scans to validate fixes and a publicly verifiable certificate once a customer passes the pentest. Astra Security's pentest reports include video PoCs and detailed steps to fix a vulnerability. Astra Security issues publicly verifiable certifications with shareable links.[1][3]

Astra Security offers a DAST scanner and an API security platform. Astra Security's vulnerability scanning covers CVEs and access control flaws. Astra Security's authenticated scans scan behind login screens. Astra Security's scanning offers CI/CD, Slack and Jira integrations. Astra Security lets customers share continuous scan results and security posture with the Trust Center. Astra Security's API scanning looks for shadow APIs, zombie APIs and broken access control.[1][3]

Astra Security's cloud scanning is continuous, agentless and multi-cloud. Astra Security's cloud scanning detects 400+ misconfigurations and risks across AWS, Azure and GCP. Astra Security's cloud scanning integrates into CI/CD for checks before and after every deployment. Astra Security provides shareable cloud security evidence through the Astra Trust Center.[3]

Astra Security examines every AI-driven component in a customer's app. Astra Security's AI testing covers prompt-based attacks such as jailbreaks, indirect and context injection, and context poisoning. Astra Security's AI testing includes CVE reproduction testing, such as Redis bugs, SSRF and exposed configs. Astra Security's team has discovered and responsibly disclosed 50+ CVEs. Astra Security's pentesters hold OSCP, CEH, eJPT, eWPTXv2 and CCSP (AWS) credentials. Astra Security is a CREST-approved member, CERT-In empanelled, a PCI ASV-approved scanning vendor and ISO 27001-certified.[8]

Astra Security sells penetration testing security to insurance providers. International SOS is a global health and security services organization. International SOS selected Astra Security for a platform-driven approach to penetration testing that blends automation with manual expertise. SmartWinnr is a mobile-first sales productivity platform for remote sales teams. Astra Security scanned SmartWinnr's web, iOS and Android applications and AWS infrastructure. Astra Security's team conducted 1 security audit for ZenoCloud.[9][10][11][12]

Astra Security on the record

Sources

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

Millennium Corporation full record

  1. [1]Millennium corporation expands cyber portfolio by acquiring maxisiq business divisionMillennium Corporation · millgroupinc.com · published May 3, 2023 · Tier A
  2. [2]millgroupinc.comMillennium Corporation · millgroupinc.com · undated page, accessed October 30, 2026 · Tier A
  3. [3]Why Millennium - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
  4. [4]Home - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
  5. [5]Your Guide to Red Team Physical Security Assessments - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
  6. [6]Cybersecurity Training - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A
  7. [7]Enterprise Services - Millennium CorporationMillennium Corporation · undated page, accessed November 10, 2026 · Tier A

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