CISO Tribune

Vendor comparison · 2 companies

Millennium Corporation vs SonicWall

Millennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector. SonicWall is a unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network, endpoint, cloud, and threat response across hybrid environments. CISO Tribune files both under MDR and managed SOC. 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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  • Millennium Corporation
  • SonicWall
Millennium Corporation vs SonicWall: Products, Customers and Funding Compared
Millennium CorporationMillennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector.millgroupinc.comSonicWallSonicWall is a unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network, endpoint, cloud, and threat response across hybrid environments.sonicwall.com
What it sells
  • Zero Trust[7]Adversarial testing of networks to confirm they are Zero Trust.
  • Capture Client[3][12]Endpoint detection and response built on SentinelOne.
  • Cloud Secure Edge[1][3][7][13][15]SonicWall's Security Service Edge (SSE) platform.
  • SonicSentry MDR[3][7][11]Managed detection and response from SonicWall analysts.
  • SonicWall Unified Management[3]A single console for managing SonicWall products.
Categories
Headquarters
Arlington, VA, United States[1][4]Not stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesOwned by Francisco Partners and Elliott Management since 2016[2][3][5][6]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • May 12, 2026SonicWall announced availability of the Gen 8 NSv XS, a subscription-based virtual firewall for MSPs and MSSPs serving small and distributed environments.[18]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 4, 2026[5]
  • Gartner Peer Insights: listed, seen November 4, 2026[6]
Who it fits
Not written yetFrom its own pages, SonicWall sells mainly to SMBs, MSPs, and IT teams, and to MSSPs and distributed enterprises. Its pages name healthcare, education, local government, finance, manufacturing, and retail as the kinds of organizations it protects. TZ series firewalls are positioned for SMBs and branch locations.
Last verified
October 30, 2026September 27, 2026

Where they overlap

  • Millennium Corporation and SonicWall are both filed under MDR and managed SOC.

Where they differ, field by field

  • Millennium Corporation's primary category is Penetration testing and red team services; SonicWall's is Firewalls and NGFW.
  • Millennium Corporation is also filed under Security consulting and advisory. SonicWall is also filed under SASE and SSE and EDR and XDR.
  • Millennium Corporation lists Zero Trust. SonicWall lists Capture Client, Cloud Secure Edge, SonicSentry MDR and SonicWall Unified Management.
  • Millennium Corporation is headquartered in Arlington, VA, United States.
  • SonicWall is owned by Francisco Partners and Elliott Management, since 2016.

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.

What it sells: SonicWall

What Capture Client does[3][12]
Capture Client is built on SentinelOne. SonicWall describes it as delivering endpoint detection and response integrated with the SonicWall ecosystem.
What Cloud Secure Edge does[1][3][7][13][15]
Cloud Secure Edge delivers secure access to internal resources and safe connections to the internet for remote and hybrid workers. It covers ZTNA, SWG, CASB, and DNS Security from one platform.
What SonicSentry MDR does[3][7][11]
SonicSentry MDR combines SonicWall telemetry with expert analysts who hunt, triage, and contain threats around the clock. For endpoints, SonicWall describes 24/7 expert monitoring and response backed by proactive threat hunting.
What SonicWall Unified Management does[3]
SonicWall Unified Management gives IT teams and MSPs a single console to manage, monitor, and respond. It covers firewalls, switches, endpoints, and Cloud Secure Edge.

Questions about Millennium Corporation and SonicWall

What do Millennium Corporation and SonicWall sell?
Millennium Corporation sells Zero Trust. SonicWall sells Capture Client, Cloud Secure Edge, SonicSentry MDR and SonicWall Unified Management.
Are Millennium Corporation and SonicWall in the same category?
They share MDR and managed SOC. Millennium Corporation's primary category is Penetration testing and red team services and SonicWall's is Firewalls and NGFW.
Where are Millennium Corporation and SonicWall headquartered?
Millennium Corporation is headquartered in Arlington, VA, United States.
Who owns Millennium Corporation and SonicWall?
SonicWall is owned by Francisco Partners and Elliott Management, since 2016.
Who are Millennium Corporation and SonicWall sold to?
From its own pages, SonicWall sells mainly to SMBs, MSPs, and IT teams, and to MSSPs and distributed enterprises.
What have Millennium Corporation and SonicWall announced recently?
May 12, 2026: SonicWall announced availability of the Gen 8 NSv XS, a subscription-based virtual firewall for MSPs and MSSPs serving small and distributed environments.

About Millennium Corporation

Millennium Corporation provides red team operations and cyber training, with clients across the Department of Defense, federal civilian agencies, and the private sector. Millennium Corporation describes its philosophy as anchored around the concept of full-spectrum operations. Millennium Corporation describes itself as a founder-led company.[2][5]

Millennium Corporation works with the armed services to protect the devices, data, and networks they use. Millennium Corporation helps the Intelligence Community securely collect, analyze, and act on large quantities of data. In federal civilian agencies, Millennium Corporation helps protect highly sensitive and mission critical data. The software engineers of Millennium Corporation craft custom solutions to meet a client's specific needs.

Millennium Corporation analyzes a client's cyber footprint to identify vulnerabilities. Red team assessments from Millennium Corporation normally contain a physical security aspect. During an assessment, Millennium Corporation operators may attempt to physically infiltrate a server room in order to compromise the target organization's network. Millennium Corporation says it has seen through hundreds of assessments that physical security enables cybersecurity and vice versa. Millennium Corporation offers a debrief and report after an assessment has concluded, explaining how its operators infiltrated the client's facility and what the client could have done differently to stop them.[5]

Millennium Corporation provides red and blue team training, builds cyber ranges, and plays the bad guys as an Opposing Force. Millennium Corporation names k>fivefour as its partner for hands-on cyber operations training for cybersecurity professionals. Millennium Corporation determines how an adversary would most likely attack and then develops protection and training plans. Millennium Corporation sets up and conducts trainings. For in-house trainings, Millennium Corporation helps schedule and track which personnel have received them.[2][6]

Millennium Corporation uses an adversarial mindset to test networks and confirm that they are Zero Trust. When new systems are added, Millennium Corporation does upfront work to make certain they will integrate with existing systems. Millennium Corporation then tests the new systems to protect them from black hat actors. Millennium Corporation has experience in frameworks such as NIST CSF, RMF, and ISO 27001, and helps clients develop and maintain a GRC program. Millennium Corporation applies red and blue team capabilities and an adversarial approach to attack simulation to protect a client's most valuable assets. Millennium Corporation integrates commercial networking technologies into expeditionary solutions, including a hybrid fiber and wireless network that enables fixed and mobile connectivity.[7]

Millennium Corporation operates a secure 10,000 sq.ft. facility that includes training and the Cyber Threat Operations Center.[2][6][7]

Millennium Corporation on the record

Sources

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

SonicWall full record

  1. [1]sonicwall.comSonicWall · sonicwall.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Francisco partners and elliott management complete acquisition of dell software groupFrancisco Partners · franciscopartners.com · published November 1, 2016 · Tier A
  3. [3]Cybersecurity That Delivers Real Business Outcomes | SonicWallSonicWall · undated page, accessed October 28, 2026 · Tier A
  4. [4]Federal Government Cybersecurity | SonicWallSonicWall · undated page, accessed October 28, 2026 · Tier A
  5. [5]SonicWall Next Generation Firewall Reviews & Product Details - G2G2 · undated page, accessed October 28, 2026 · Tier C
  6. [6]SonicWall Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed October 28, 2026 · Tier C
  7. [7]Cybersecurity Solutions by Use Case | SonicWallSonicWall · undated page, accessed November 4, 2026 · Tier A
  8. [8]Cybersecurity for Cloud Virtual and Hybrid Networks | SonicWallSonicWall · undated page, accessed November 4, 2026 · Tier A
  9. [9]SonicWall TZ Series: Advanced Protection for SMBs | Entry Level Next Generation FirewallsSonicWall · undated page, accessed November 4, 2026 · Tier A
  10. [10]Firewall & Network Security Services | SonicwallSonicWall · undated page, accessed November 4, 2026 · Tier A
  11. [11]Endpoint Security & Managed EDR Solutions | SonicWallSonicWall · undated page, accessed November 4, 2026 · Tier A
  12. [12]Endpoint Security Solutions | EDR, NGAV & Ransomware Protection | SonicWallSonicWall · undated page, accessed November 4, 2026 · Tier A
  13. [13]Cloud Secure Edge (CSE): ZTNA Solution | SonicWallSonicWall · undated page, accessed November 4, 2026 · Tier A
  14. [14]SonicWall VPN Clients | NetExtender & Mobile ConnectSonicWall · undated page, accessed November 4, 2026 · Tier A
  15. [15]SonicWall Unified Management | Cybersecurity PlatformSonicWall · undated page, accessed November 4, 2026 · Tier A
  16. [16]SonicWall Capture Advanced Threat Protection (ATP)SonicWall · undated page, accessed November 4, 2026 · Tier A
  17. [17]On-Premise ATP | SonicWall Capture Security applianceSonicWall · undated page, accessed November 4, 2026 · Tier A
  18. [18]SonicWall Expands Gen 8 Platform to the Cloud with New NSv XS Virtual Firewall to Help MSPs and MSSPs Deliver Managed Security Wherever Workloads RunSonicWall · published May 12, 2026 · Tier A

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