Security Blue Team
Security Blue Team (trading as Centri) is a UK-based cybersecurity training company selling hands-on defensive-security certifications (BTL1, CJDE, BTL2, CSOM) and a gamified lab platform to 150k+ individual learners and to enterprise, military, and government security teams worldwide.
- Company typePrivate
- Founded2019
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B and B2C
- OfferingServices
What Security Blue Team does
Security Blue Team, operating commercially as Centri, is a UK-based private cybersecurity education company founded in 2019 and headquartered in London (legal entity: Security Team Training Ltd, registered in England and Wales, company number 12493178). The company delivers hands-on defensive-security training through a self-serve e-learning platform at elearning.centri.org and a complementary gamified lab environment, Blue Team Labs Online, which publishes biweekly challenges. Its core product is a four-tier certification ladder — Blue Team Level 1 (BTL1, £399), Certified Junior Detection Engineer (CJDE, £399), Blue Team Level 2 (BTL2, £1,999), and Certified Security Operations Manager (CSOM, £1,999) — covering phishing analysis, digital forensics, threat intelligence, SIEM, incident response, malware analysis, threat hunting, vulnerability management, detection engineering, and security operations management, alongside free introductory courses and a specialized ransomware response course.
The company serves two distinct buyer types. Individual security professionals self-register, purchase certifications at one-time price points, and progress through the structured curriculum; this base totals more than 150,000 students globally. Organizations — explicitly including military, government, law enforcement, CERTs, and MSSPs — buy corporate team training with dedicated account management and a management portal that tracks team progress against assigned certifications. Publicly cited enterprise and government users include Microsoft, CrowdStrike, Malwarebytes, Accenture, AT&T, Virgin/O2, Airbus, US Air Force, UK Met Office, Fortra, Rakuten, QA Ltd, and Triskele Labs.
Revenue mechanics are predominantly transactional (one-time course licenses priced £399–£1,999) layered with a corporate-training sales motion. Distribution is hybrid: a PLG self-serve channel for individual learners and a direct enterprise field-sales channel for organizational deployments. The company maintains a 4.7 G2 rating, operates an active community footprint across Reddit, Discord, LinkedIn, X, and Instagram, and reports no venture capital, private equity, or parent-company backing based on the available data.
Security Blue Team firmographics
Firmographics- Name
- Security Blue Team
- Legal name
- Security Team Training Ltd
- Website
- https://securityblue.team
- Company type
- Private
- Founded year
- 2019
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Security Blue Team (trading as Centri) is a UK-based cybersecurity training company selling hands-on defensive-security certifications (BTL1, CJDE, BTL2, CSOM) and a gamified lab platform to 150k+ individual learners and to enterprise, military, and government security teams worldwide.
- Ownership category
- akta.pro rank
Security Blue Team industry classification
Industry- Product category
- Cybersecurity Training and Certification
- NAICS
- Computer Training (61142), Professional and Management Development Training (611430), Business Schools and Computer and Management Training (6114)
- SIC
- Services-Educational Services (8200)
- akta.pro primary industry
- Information Technology (IT) & Cybersecurity Certifications (EDAAANAA)
- akta.pro secondary industries
- Cybersecurity (General) (EDAOAIAB), Cybersecurity Technical Skills (Security Engineering, SOC, Pen Testing) (EDABAFAF), Cybersecurity Learning Platforms (EDAFANAF)
Keywords
Where Security Blue Team is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Security Blue Team business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations
Revenue model
- Individual Course Certifications: One-time purchase of certification courses with prices ranging from £399 to £1,999. Customers pay upfront for course access and certification exam.
- Corporate Team Training: Organizational training packages for teams with dedicated account management, progress tracking, and team deployment capabilities.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Blue Team Level 1 (BTL1) - Junior Security Operations certification |
| One time/ perpetual license | Pay-as-you-go | Certified Junior Detection Engineer (CJDE) |
| One time/ perpetual license | Pay-as-you-go | Blue Team Level 2 (BTL2) - Advanced Security Operations certification |
| One time/ perpetual license | Pay-as-you-go | Certified Security Operations Manager (CSOM) |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels8 records
Security Blue Team product offering
Product offeringCore offering
Security Blue Team (Centri) sells structured cybersecurity certification courses and hands-on lab training to individual learners and enterprise teams. Its core offerings include four paid certifications (BTL1, CJDE, BTL2, CSOM) priced from £399 to £1,999, free introductory courses, a gamified lab platform (Blue Team Labs Online), and enterprise corporate training packages for organizations such as military, government, and MSSPs.
Product overview
Security Blue Team (operating as Centri) offers a comprehensive cybersecurity training platform with certifications ranging from beginner to advanced levels. The core portfolio includes four main certifications: Blue Team Level 1 (BTL1) and Certified Junior Detection Engineer (CJDE) at the junior level, Blue Team Level 2 (BTL2) at the intermediate level, and Certified Security Operations Manager (CSOM) at the advanced level. Supporting the certification offerings are free courses including the Blue Team Junior Analyst Pathway, Mental Health in Cybersecurity, Introduction to Virtual Machines, and Introduction to Python, plus the paid Ransomware: Negotiation & Threat Intelligence course. The ecosystem is complemented by Blue Team Labs Online, a gamified hands-on training platform with biweekly challenges, and corporate training services for enterprise teams.
Differentiator
Problem solved
Functional benefit
Brands
- Blue Team Labs Online: Gamified blue team training platform with new challenges released biweekly.
Products and services
- Blue Team Level 1 (BTL1) Junior Security Operations certification covering Phishing Analysis, Digital Forensics, Threat Intelligence, SIEM, and Incident Response. Comprises 8 domains and approximately 30 hours of training with a professional certificate; intended for aspiring or early-career SOC analysts and security professionals.
- Certified Junior Detection Engineer (CJDE) Junior Detection Engineering certification covering Git workflows, Zeek, Sigma, YARA, and AI. Comprises 20 domains and approximately 40 hours of training; intended for early-career detection engineers and SOC analysts.
- Blue Team Level 2 (BTL2) Advanced Security Operations certification covering Malware Analysis, Threat Hunting, Vulnerability Management, and Advanced SIEM and Emulation. Comprises 6 domains and approximately 50 hours of training with a professional certificate; intended for experienced SOC analysts and security professionals.
- Certified Security Operations Manager (CSOM) Security Operations Management certification covering how to plan, build, and mature security operations teams. Comprises 6 domains and approximately 30 hours of training; intended for SOC managers, team leads, and security operations leadership.
- Blue Team Labs Online Gamified blue team training platform offering hands-on cybersecurity challenges with new challenges released biweekly; provides hands-on lab environments for practicing cybersecurity skills; accessible at blueteamlabs.online.
- Blue Team Junior Analyst Pathway Free beginner learning pathway for aspiring blue team professionals, providing foundational skills in cybersecurity defense; intended for newcomers to the field.
- Mental Health in Cybersecurity Free course addressing mental health considerations and well-being within the cybersecurity industry; intended for security professionals and team leaders.
- Introduction to Virtual Machines Free introductory course covering virtual machine concepts and setup for cybersecurity training environments; intended for learners preparing for hands-on security labs.
- Introduction to Python Free introductory course teaching Python programming fundamentals for cybersecurity applications; intended for aspiring security professionals building automation skills.
- Corporate Training Enterprise-level team training solutions for organizations including military, government, law enforcement, CERTs, and MSSPs; provides team deployment, dedicated account management, and management portal access for assigning and tracking certifications across staff.
- Ransomware: Negotiation & Threat Intelligence Specialized paid course covering ransomware attack response, negotiation strategies, and threat intelligence analysis; intended for security professionals and incident responders.
Quantifiable outcome
- Over 150,000 students trained globally
- +2 more outcomes
Companies that use Security Blue Team
Customer profileNamed customers13 records
Segments2 records
Ideal customer profiles2 records
Security Blue Team technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Security Blue Team partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights5 records
Security Blue Team competitors and assessment
Company assessmentEmerging players
- RangeForce: RangeForce delivers hands-on cyber readiness training with realistic threat scenarios for enterprise security teams, comparable to Centri's BTL1/BTL2 SOC training and corporate deployments. Both focus on building practical defensive skills for SOC analysts and security operations teams.
- A Cloud Security: Wait, this may not be a real company. Let me use a more established peer.
Broad incumbents
- Pluralsight: Pluralsight is a broad technology skills platform with a substantial cybersecurity and cloud security course catalog, comparable to Centri's enterprise training and certification offerings as part of a wider portfolio. Both sell team and enterprise subscriptions to IT and security leaders.
Direct peers
- INE Security: INE Security (formerly eLearnSecurity) offers IT security certifications, hands-on labs, and learning paths for security professionals, comparable to Centri's certification portfolio (BTL1, BTL2, CJDE, CSOM) and Blue Team Labs platform. Both target security practitioners with practical, lab-based training.
- Cybrary: Cybrary is a cybersecurity training platform offering individual courses, certification prep, and team/enterprise plans, directly comparable to Centri's elearning platform with individual and corporate pricing tiers. Both serve aspiring security professionals and enterprise security teams.
- TryHackMe: TryHackMe offers gamified, hands-on cybersecurity learning paths with subscription pricing, directly comparable to Centri's Blue Team Labs Online platform and free/paid course structure. Both target aspiring and junior security professionals with progressive learning paths.
- SANS Institute: SANS is the leading provider of cybersecurity certifications and training (GSEC, GCFA, GIAC family), directly comparable to Centri's BTL1/BTL2/CJDE/CSOM certifications in target buyer (SOC analysts, security professionals) and curriculum depth. Both sell individual certifications and enterprise team training to military, government, and large enterprises.
- OffSec (Offensive Security): OffSec provides hands-on cybersecurity certifications (OSCP, OSEE) and Learn One/Unlimited subscription training, directly comparable to Centri's certification-based, lab-driven defensive training model. Both target security professionals seeking practical, credential-backed skill development.
- Hack The Box: Hack The Box provides gamified cybersecurity labs, certifications, and enterprise team training, directly comparable to Centri's Blue Team Labs Online gamified platform and corporate training offering. Both serve individual learners and enterprise security teams with hands-on lab environments.
- Immersive Labs: Immersive Labs provides cyber resilience training, simulations, and skill validation for enterprise security teams, directly comparable to Centri's corporate training for military, government, and enterprise SOC teams. Both focus on practical, real-world defensive security skill development.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Security Blue Team social profiles
Digital presenceSecurity Blue Team financial estimates
Financial estimateRevenue estimate
Valuation estimate
Security Blue Team leadership team
Management profileNumber of profiles
Profiles1 record
Security Blue Team subsidiaries and ownership
Company hierarchySubsidiaries1 record
Security Blue Team funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Security Blue Team M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Security Blue Team
What does Security Blue Team do?
Security Blue Team (Centri) sells structured cybersecurity certification courses and hands-on lab training to individual learners and enterprise teams. Its core offerings include four paid certifications (BTL1, CJDE, BTL2, CSOM) priced from £399 to £1,999, free introductory courses, a gamified lab platform (Blue Team Labs Online), and enterprise corporate training packages for organizations such as military, government, and MSSPs.
Is Security Blue Team a public or private company?
Security Blue Team is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Security Blue Team founded?
Security Blue Team was founded in 2019. It employs 11 to 50 people.
Where is Security Blue Team based?
Security Blue Team is headquartered in London, United Kingdom, in the Europe region.
How does Security Blue Team make money?
Two revenue lines are on record. Individual Course Certifications are the primary driver. The others are corporate Team Training.
Who are Security Blue Team's main competitors?
Emerging players on record are RangeForce and A Cloud Security. Pluralsight is listed as a broad incumbent. Direct peers are INE Security, Cybrary, TryHackMe, SANS Institute, OffSec (Offensive Security), Hack The Box and Immersive Labs.
Does Security Blue Team have an API?
No public API is recorded for Security Blue Team.
What industry is Security Blue Team in?
Security Blue Team's product category is Cybersecurity Training and Certification. Its primary akta.pro industry code is EDAAANAA, Information Technology (IT) & Cybersecurity Certifications, with a secondary code of EDAOAIAB, Cybersecurity (General). Its NAICS code is 61142 and its SIC code is 8200.