What Kfivefour does

Kfivefour (also stylized as k>fivefour or kfivefour) is a private U.S. cybersecurity training company headquartered in Huntsville, Alabama, with a regional office in Arlington, Virginia, that delivers hands-on Red Team training and certification courses primarily to military, federal civilian, and commercial cybersecurity teams. The company was founded in 2016 and operates as a subsidiary affiliated with the federal services firm Millennium, sharing technical leadership between the two entities. Kfivefour's core curriculum comprises instructor-led courses taught by active and former Red Team operators, led by the six-day Red Team Apprentice Course ($6,495) and the ten-day Red Team Journeyman Course ($10,995), supported by specialized offerings in web application exploitation, offensive forensics and threat hunting, network reverse engineering and malware analysis, network exploitation, and foundations of cyber operations.

The company's platform is anchored by Battlegrounds, a custom-built online training environment providing realistic virtual scenarios with 37 labs and more than 40 virtual machines for the Journeyman course, accessible both in-person at the purpose-built Cyber Operations Training Center in Huntsville and virtually. Students complete rigorous, proctored certification exams (a 9-hour exam for Apprentice, a two-day exam for Journeyman) audited for proper Red Team tradecraft, yielding unique operator numbers. Kfivefour also offers professional services for commercial and government clients, including Red Team assessments and offensive-infused penetration testing with a four-step reconnaissance-through-impact methodology.

Commercially, Kfivefour monetizes through one-time course fees, recurring Battlegrounds subscriptions (including Tier 2 Professional and Advanced tiers), add-on certificate retake vouchers, and professional services engagements. Pricing is published (Apprentice at $6,495 and Journeyman at $10,995) and courses are sold direct via the company's website storefront and via enterprise sales motion. The customer base is anchored by Department of Defense clients, with the company claiming to have trained over half of all DoD certified Red Teams, and includes Army Cyber Protection, Army Engineers, Army National Guard, DOTE, Naval Air Command, NAVSEA, NAVWAR, IOCF, and FBI, alongside commercial buyers Dell and Intel. Marketing relies on organic social channels (LinkedIn, X/Twitter), website content, and customer testimonials, with sales-led direct outreach for enterprise and assessment engagements and a community-led motion built around the credibility of its operator-instructors.

Name

Kfivefour

Legal name

k>fivefour

Website

https://kfivefour.com

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

Kfivefour is a U.S. cybersecurity training company that delivers hands-on Red Team certification courses and a custom Battlegrounds virtual lab environment to U.S. Department of Defense, federal civilian, and commercial cyber teams, taught by active and former operators.

Ownership category

akta.pro rank

Product category

Cybersecurity Training

NAICS

Computer Training (61142), Business Schools and Computer and Management Training (6114), Professional and Management Development Training (611430)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Penetration Testing, Red Team & Ethical Hacking (EDAOAIAH)

akta.pro secondary industries

General Cybersecurity Awareness (All Employees) (EDABAGAA), Cybersecurity Technical Skills (Security Engineering, SOC, Pen Testing) (EDABAFAF), Cybersecurity (EDAAAPAC)

Keywords

• Red Team training
• Cybersecurity education
• Penetration testing services
• Offensive security courses
• Cyber operations certification

Headquarters

HQ city

Huntsville

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Red Team Training Courses: Instructor-led training courses with live, hands-on instruction offered both in-person and virtually. Courses include Red Team Apprentice (6 days, $6,495) and Red Team Journeyman (10 days, $10,995). Course completion leads to certification with unique operator numbers.
2. Battlegrounds Subscriptions: Online training environment subscription providing ongoing access to virtual scenarios for continuous skill development. Currently undergoing rebuild with new server room and refreshed infrastructure.
3. Red Team Assessments: Controlled cyber attack assessments for organizations wanting to test their security teams' abilities. Challenges internal security teams across all aspects of organizational cybersecurity.
4. Penetration Testing Services: Offensive-infused four-step process including target reconnaissance, vulnerability enumeration, exploitation, and mission impact assessment.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels4 records

Core offering

Kfivefour provides hands-on, instructor-led Red Team cybersecurity training through multi-tiered live courses (Apprentice, Journeyman, and specialized programs) delivered both in person at its Cyber Operations Training Center in Huntsville, AL and virtually. The training is supported by Battlegrounds, a custom-built online lab environment with realistic virtual scenarios, and culminates in rigorously audited certification exams. The company also offers Red Team Assessments and Penetration Testing professional services to validate organizational cybersecurity defenses.

Product overview

Kfivefour is a hands-on cyber operations training company offering a multi-tiered Red Team training curriculum. The core portfolio includes three progressive courses: the beginner Red Team Apprentice Course, the intermediate Red Team Journeyman Course, and specialized courses (Foundations of Cyber Operations, Web Application Exploitation, Offensive Forensics/Hunt, Network Reverse Engineering/Malware Analysis, and Network Exploitation). Supporting the training are certificate retake vouchers, the Battlegrounds custom-built virtual training environment, and professional cybersecurity assessment services (Red Team Assessments and Penetration Testing). The progression moves from foundational skills through intermediate tradecraft to specialized deep-dives, all culminating in rigorous hands-on certification exams.

Differentiator

Problem solved

Functional benefit

Products and services

• Red Team Apprentice Course A six-day beginner-friendly Red Team training course covering fundamental security topics and Red Team operations. Students learn nation-state level cyber threat emulation through hands-on, lab-driven network attack scenarios in the Battleground training environment. Course fee is $6,495 and includes a rigorously audited certification exam.
• Red Team Journeyman Course An intermediate-level 10-day Red Team training course that mimics nation-state hacker capabilities. Features 37 labs and over 40 virtual machines. Students learn covert infrastructure building, web shell deployment, advanced persistence, and domain pivoting. Course fee is $10,995 and requires Red Team Apprentice certification as a prerequisite.
• Foundations of Cyber Operations Course An introductory course covering offensive and defensive cyber operations fundamentals, providing foundational skills for cybersecurity professionals.
• Web Application Exploitation A specialized deep-dive course covering web application security testing and exploitation techniques.
• Offensive Forensics/Hunt A specialized course focusing on offensive forensics and threat hunting methodologies.
• Network Reverse Engineering/Malware Analysis A specialized course covering reverse engineering of network protocols and malware analysis techniques.
• Network Exploitation A specialized course focusing on network-based exploitation techniques.
• Battlegrounds A custom-built online training environment providing access to highly realistic virtual scenarios where students can train, augment, and perfect their cybersecurity skills at their own pace. Available via subscription with multiple tiers including 'Professional' and 'Advanced' access.
• Red Team Assessments A professional service that challenges an organization's internal security teams by conducting a controlled cyber attack to examine all aspects of organizational cybersecurity, emulating real-world adversary tactics.
• Penetration Testing An offensive-infused four-step penetration testing service covering target reconnaissance, vulnerability enumeration, exploitation, and mission impact assessment for commercial enterprises.

Quantifiable outcome

• Students can conduct simulated cyber operations assessments upon successful course completion
• +1 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• SANS Institute: SANS is the dominant provider of hands-on cybersecurity training and certifications globally, including extensive Red Team, penetration testing, and cyber operations content. Like Kfivefour, SANS sells premium instructor-led courses and certifications to DoD, federal, and commercial buyers.
• Offensive Security: Offensive Security (creators of OSCP, OSEP, OSED) sells hands-on offensive security training and a lab environment (PEN-200, PEN-300) closely paralleling Kfivefour's Apprentice/Journeyman progression. It is a direct competitor in the premium Red Team / penetration testing certification market.
• Zero Point Security: Zero Point Security specializes in Red Team operations training, including the widely recognized CRTO certification. It competes head-to-head with Kfivefour's Red Team Apprentice and Journeyman tracks in the operator-led offensive training niche.
• Bishop Fox: Bishop Fox is an offensive security firm combining adversary simulation, Red Team assessments, and training services for large enterprises and federal clients. Its Red Team assessment practice directly overlaps Kfivefour's professional services offering.
• INE Security: INE (formerly eLearnSecurity / iNE) offers structured cybersecurity training paths, labs, and certifications including penetration testing tracks. It is comparable to Kfivefour in targeting career-oriented offensive security learners through both self-paced and instructor-led formats.
• RangeForce: RangeForce provides a cloud-based, hands-on cyber skills training platform used by enterprises and government agencies for team readiness assessments. Its subscription model and enterprise/government focus align closely with Kfivefour's Battlegrounds and federal training approach.
• Antisyphon Training: Antisyphon Training delivers affordable, practitioner-led cybersecurity courses across offensive and defensive topics with a strong emphasis on community-driven instruction. It competes with Kfivefour for the same Red Team and cyber operations learners, particularly in the mid-market segment.
• Hack The Box: Hack The Box provides a large always-on cybersecurity training platform with labs, academy courses, and certifications across offensive and defensive skills. It competes directly with Kfivefour's Battlegrounds subscription and course catalog, especially among individual and commercial buyers.
• Pentester Academy: Pentester Academy offers hands-on cybersecurity and Red Team training courses with lab environments, comparable in scope to Kfivefour's Apprentice/Journeyman and specialized courses. It is a long-standing direct competitor in the technical cybersecurity training category.

Broad incumbents

• Mandiant (Google Cloud): Mandiant, now part of Google Cloud, delivers broad cyber consulting, Red Team assessments, and incident response, including training-adjacent services. It is a larger incumbent with overlapping professional services rather than a direct training-platform peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks3 records

Key highlights6 records

Customer concentration

• Xx.com/kfivefour
• LinkedInlinkedin.com/company/kfivefour

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Kfivefour