What types of cybersecurity service providers are listed?

The directory includes 161 service providers across Managed Security Service Providers (MSSPs), Managed Detection and Response (MDR) firms, penetration testing companies, virtual CISO (vCISO) services, incident response teams, and compliance consultants covering SOC 2, ISO 27001, HIPAA, and PCI DSS.

What is the difference between an MSSP and an MDR provider?

An MSSP (Managed Security Service Provider) typically offers broad outsourced security operations including SIEM monitoring, firewall management, and compliance support. An MDR (Managed Detection and Response) provider specializes in 24/7 threat detection and active incident response, often with their own technology stack. MDR is more focused on detecting and stopping attacks; MSSPs offer wider but sometimes shallower coverage.

When should I hire a vCISO instead of a full-time CISO?

A virtual CISO (vCISO) is ideal for organizations that need senior security leadership but cannot justify a full-time hire. Common scenarios: companies under 500 employees, organizations preparing for SOC 2 or ISO 27001, businesses scaling rapidly, and teams needing board-level security reporting. A full-time CISO typically makes sense at 500+ employees or in highly regulated industries.

How much does a penetration test cost?

Penetration testing costs vary widely based on scope. Web application pen tests typically range from $5,000 to $25,000. Network pen tests range from $10,000 to $50,000+. Red team engagements can exceed $100,000. Pricing depends on attack surface size, depth (black box, gray box, white box), and reporting requirements. Always request scoped quotes from at least 3 providers.

How do I choose the right cybersecurity service provider?

Evaluate on five criteria: (1) Specialization match — MSSP, MDR, pentest, vCISO, IR, or compliance; (2) Certifications — SOC 2, ISO 27001, CREST, OSCP for individual testers; (3) Industry experience — healthcare, fintech, SaaS, government; (4) Geographic and language coverage; (5) Pricing model — retainer, project-based, or per-incident. Always check client references and request sample reports.

Which cybersecurity service providers are best for SaaS startups in 2026?

SaaS startups typically need a vCISO for strategic guidance, an MSSP or MDR for monitoring once they have meaningful customer data, and a penetration testing firm for annual compliance and customer assurance. Compliance consultants help with SOC 2 Type II, the most common framework for SaaS companies. Filter providers by service type to compare options.

Find Offensive Security Companies

Cybersecurity service providers are the firms you bring in when you need hands and expertise rather than another tool: managed detection and response, penetration testing, vCISO and advisory, incident response, and compliance work. For teams that cannot hire fast enough, the right partner is often the difference between a control on paper and one that actually runs. The hard part is matching scope, specialization, and trust.

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Quick Reference

What is the difference between MSSP, MDR, and vCISO?: MSSPs run broad security operations (SIEM, firewall, scanning). MDR providers specialize in 24/7 threat detection and active response on their own tech stack. A vCISO is fractional senior leadership for strategy, not operations.
How much does it cost to outsource cybersecurity?: MSSP retainers run $3,000 to $50,000+ per month. MDR is per-endpoint. vCISO retainers are $5,000 to $15,000 per month. Web app pen tests are $5,000 to $25,000. Red team engagements exceed $75,000.
When should I hire an incident response retainer?: Before you need it. Pre-paid retainers guarantee response-time SLAs and cap emergency rates. Engage a retainer once you handle regulated data, customer PII, or critical infrastructure.
How long does a penetration test take?: Web app pen tests typically take one to three weeks. External network tests two to four weeks. Red team engagements run four to twelve weeks. Reporting adds one to two weeks on top.

Acronym Glossary

MSSP: Managed Security Service Provider — outsourced security operations including SIEM monitoring, firewall management, and vulnerability scanning.
MDR: Managed Detection and Response — 24/7 threat hunting and active incident response on a provider-managed tech stack.
vCISO: Virtual or fractional Chief Information Security Officer — senior security leadership on a part-time retainer.
IR: Incident Response — specialists who lead containment, forensics, and recovery during a security breach.