Managed Service Providers increasingly compete on security depth, not just uptime. Offering penetration testing and vulnerability assessment services lets you become a trusted advisor for clients facing real breach risk. Here's how to build this into your MSP model profitably.
Why Penetration Testing Fits the MSP Model
MSPs already own client relationships and understand their infrastructure. Pivoting into offensive security testing is a natural extension—your clients already trust you with their systems. Unlike one-off consulting work, recurring vulnerability assessments create predictable revenue and deepen customer stickiness.
The regulatory landscape accelerates demand. Clients subject to PCI-DSS, HIPAA, SOC 2, or NIST frameworks must demonstrate testing. They'll pay for services that check the compliance box and reduce actual risk.
Setting Up Your Service Offering
Start by defining scope tiers. Most MSPs offer three levels:
- Internal network assessment ($3,000–$8,000). Test workstations, servers, and internal apps. Includes limited social engineering.
- External perimeter test ($5,000–$12,000). Focus on public-facing assets, email, VPNs, cloud configs.
- Full-scope engagement ($10,000–$25,000+). Combines network, web app, cloud, and physical security elements. Four to six week timeline.
Pricing depends on your geography, certifications, and client complexity. MSPs in major metros (NYC, SF, Austin) charge 20–30% premium. Certified staff (OSCP, CEH, GWAPT) justify higher rates.
Building Capability Without Hiring Pentesters
Not every MSP needs full-time offensive security staff immediately. Consider these options:
Partner with a specialized firm early. White-label an external pentester for six months while you learn the workflow. You'll handle scoping, scheduling, and reporting; the partner runs the test. Margin is tighter (40–50% vs. 70%+), but you build knowledge without R&D risk.
Hire one certified tester once you have 3–4 recurring clients. Look for someone with OSCP or CEH who's worked in an MSP. They'll understand your clients' environments and can mentor junior staff.
Train existing staff progressively. Pick your strongest sysadmin and invest in GPEN or eJPT certification ($1,200–$2,500 course + exam). They transition into your security team over 12 months.
Staffing and Certification Timelines
A junior pentester (CEH or GPEN) contributes limited tests alone; pair them with a senior tester on scopes. Build 2–3 months lead time into your first engagements while your team gains case experience. By year two, you'll run 1–2 independent scopes monthly per certified tester.
Factor in ongoing training (annual conference, tool licenses, labs): ~$5,000 per tester annually. Tools like Burp Suite Pro ($400/year), Metasploit Pro ($8,000/year), and Nessus Manager ($5,000/year) add up, but are non-negotiable for credibility.
Pricing and Profit Margins
Internal tests typically run 40–80 labor hours (one tester, three weeks). At $150/hour blended rate, a $6,000 engagement yields $12,000 gross revenue and ~60% margin after tools and overhead.
External and full-scope work demands more expertise. A $15,000 full-scope can burn 120 labor hours if you're thorough (two testers, varying intensity). That's still 50% margin if your blended rate is $100/hour and tooling is shared.
Key insight: Your first five engagements will be slower. Budget 20% more hours. By engagement ten, you'll forecast time accurately.
Packaging and Upsell Opportunities
Offer tiered remediation follow-ups:
- Remediation recommendations (included in main report)
- Re-test after fixes ($2,000–$4,000)
- Quarterly vulnerability scanning ($500–$1,500/month)
Clients who've failed a test are most likely to buy your quarterly scans. Position them as proof that fixes worked—and early detection of drift.
Listing your penetration testing and vulnerability assessment services on Mercoly makes it easier for prospects to find you, compare capabilities, and request quotes directly.
Frequently Asked Questions
Q: How long does a typical penetration test take to deliver results? A: External scopes take 2–3 weeks; full-scope engagements take 4–6 weeks. Report turnaround is 5–10 business days post-testing.
Q: Do I need insurance for penetration testing? A: Yes. Professional liability and E&O insurance that covers security testing costs $1,500–$3,500 annually and is mandatory for client contracts.
Q: What's the minimum team size to offer this service? A: One OSCP or GPEN-certified person plus a mentor (internal or external). Start with external partnerships, then hire internally as demand grows.
Start with one or two pilot engagements this quarter—list your service offerings, build case studies, and expand your security team iteratively.