Find Security Operations 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.
Arete Advisors
Cyber incident response firm specializing in ransomware recovery and risk management.
Argon Cyber Security
Canadian pen testing firm offering app, infrastructure, and cloud security assessments.
ArkSentry
PTaaS provider offering manual penetration testing for web, API, cloud & networks.
Armantec Systems
IT services firm offering enterprise app development and cyber threat hunting
Armor Defense
Managed detection, response, and cloud security services for global enterprises.
Artifact Security
Independent cybersecurity testing, evaluation, and certification firm based in the UK.
Artifice Security
Veteran-owned Denver firm providing manual penetration testing for enterprise clients.
Ascent InfoSec
MSSP offering 24x7 SOC, managed security, and consulting for mid-to-large enterprises.
Asgard Cyber Security
Boutique cybersecurity firm offering pen testing, consulting, and ransomware tools.
Assuria
UK-based cybersecurity firm offering SOC services and a SOC Partner Programme.
Asymmetric Security
AI-native DFIR company automating digital forensics and incident response
Attack Research
Boutique security firm specializing in penetration testing and consulting
Avertium
Managed security services provider offering XDR and SIEM solutions
Axelia Cybersecurity
Cybersecurity services provider for startups and SMEs
Axon Technologies
MSSP based in Dubai offering end-to-end cybersecurity services across EMEA.
BI.ZONE
Russian digital risk management firm offering cybersecurity services, products, and CERT.
BRAHM Security
CREST-certified penetration testing and security assessment services firm.
Ballpoint
Paris-based firm offering pentesting, red team, and deceptive security services.
Barricade IT Security
NY-based cybersecurity services firm offering pentesting, compliance, and IAM.
Be Innova
Italian MSSP offering SOC, NOC, incident response, and pen testing services.
Bevel Security
Managed SOC provider offering SIEM, EDR, red/blue team ops, and GRC services.
Binary Defense
Managed security services provider with 24/7 SOC and threat hunting
Bishop Fox
Offensive security firm providing penetration testing and red team services
Bit Sentinel
Romanian cybersecurity firm offering pentesting, managed security, and incident response.
