Managed security services vs. in-house SOC refers to the decision between outsourcing your security operations to a third-party provider (an MSSP) or building and staffing a dedicated internal team. For most mid-market organizations with 200 to 2,000 employees, a managed security services provider delivers equivalent or better coverage at 25 to 40 percent of the cost of a fully staffed in-house SOC. The right answer depends on your budget, your compliance requirements, and how much operational risk you are willing to carry internally.
You have identified a security gap. Now someone in leadership wants to know whether you fix it by hiring or by outsourcing, and they want a number by Friday.
Both options come with salespeople attached. The MSSP will show you a slide about the cybersecurity talent shortage and walk you through a cost comparison that conveniently favors outsourcing. The internal security advocate will talk about control, visibility, and institutional knowledge, and underestimate what it actually takes to sustain a 24/7 security operation by about 40 to 60 percent.
Here are the numbers and the framework to make the call yourself.
What Does It Actually Cost to Build an In-House SOC?
The most common mistake organizations make when evaluating an in-house security operations center is treating it as a technology purchase. It is a people program. People are the most expensive and least predictable line item, and most internal business cases get this wrong before the spreadsheet is half finished.
For a mid-market organization (200 to 2,000 employees), a fully functional in-house SOC with genuine 24/7 coverage costs between $1.8 million and $3.5 million annually, plus $200,000 to $500,000 in first-year setup costs. That figure covers staffing across three shifts, a full technology stack including SIEM, EDR/XDR, SOAR, threat intelligence feeds, and vulnerability management, plus ongoing training and the recruitment costs that come with 20-plus percent annual analyst turnover.
When we work with mid-market organizations that have attempted to build their own security operations, the pattern is consistent. The initial build focuses on tooling: a SIEM gets purchased, an EDR gets deployed, a couple of analysts get hired. Twelve months later, the SIEM is generating thousands of alerts per day, the analysts are spending 80 to 90 percent of their time on Tier 1 triage rather than investigation, and detection rules have not been tuned since deployment. The coverage that looked real on paper has gaps every night, every weekend, and every time an analyst gives two weeks notice. The build cost was real. The protection was partial.
Headcount: What 24/7 Coverage Actually Requires
True around-the-clock monitoring does not run on three analysts and a SIEM. To maintain genuine 24/7/365 coverage with enough depth to investigate alerts rather than acknowledge them, a functional mid-market SOC needs eight to twelve analysts across rotating shifts, accounting for weekends, holidays, PTO, and turnover.
Tier 1 analysts in the US earn between $75,000 and $95,000 annually. Tier 2 analysts run $100,000 to $130,000. Add a SOC manager at $140,000 to $175,000, a security engineer or two, and a threat intelligence analyst, and your fully loaded annual personnel cost lands between $1.5 million and $2.15 million before you have bought a single tool.
Fully loaded means salary plus benefits (typically 30 to 35 percent of base), payroll taxes, training, certifications, and recruitment. According to ISC2’s 2023 Cybersecurity Workforce Study, cybersecurity roles take an average of six or more months to fill. Turnover in security operations routinely exceeds 20 percent annually. Recruiter fees and direct hiring costs alone run $15,000 to $25,000 per hire, and you will be filling these roles repeatedly.
Technology: The SIEM Is the Most-Cited Cost but Not the Largest One
Every SOC comparison mentions SIEM costs. Organizations routinely find the SIEM represents less than half their total security stack spend once EDR, SOAR, threat intelligence, and vulnerability management licensing are accounted for.
A functional mid-market security stack requires an EDR or XDR platform such as CrowdStrike Falcon, Microsoft Defender for Endpoint, or SentinelOne; a SOAR platform for automated playbook execution such as Splunk SOAR or Palo Alto XSOAR; threat intelligence feeds such as Recorded Future or MISP for open-source intelligence; a vulnerability scanner such as Tenable Nessus or Qualys; and a case management system. Licensing for that full stack runs $135,000 to $560,000 annually, based on published vendor pricing across SIEM, EDR, SOAR, and threat intelligence platforms. The SIEM is where costs get unpredictable. Microsoft Sentinel prices at approximately $2.46 per GB ingested, which puts a mid-market environment pushing 100 to 500 GB of daily logs at $90,000 to $450,000 in SIEM spend before the rest of the stack is accounted for. First-year infrastructure costs for monitoring hardware, secure workstations, and redundant connectivity add another six-figure one-time investment on top of that.
Here is what that actually adds up to.
| Line Item | Detail | In-House Annual Cost | Managed Services Cost |
|---|---|---|---|
| Tier 1 Analysts (x6) | $75K to $95K each | $600K to $760K | N/A |
| Tier 2 Analysts (x3) | $100K to $130K each | $400K to $520K | N/A |
| SOC Manager (x1) | $140K to $175K | $185K to $230K | N/A |
| Security Engineer (x1-2) | $130K to $170K each | $170K to $450K | N/A |
| Full tech stack | SIEM, EDR/XDR, SOAR, TI feeds, vuln scanner (SIEM cost scales with log ingestion volume) | $135K to $750K | Included in service fee |
| First-year setup | Infrastructure, workstations, connectivity | Six-figure one-time investment | None |
| TOTAL ANNUAL | $1.8M to $3.5M | $100K to $800K |
The Line Item Most Business Cases Leave Out
Detection engineering is the work of writing, testing, and continuously tuning correlation rules and detection logic in SIEM platforms like Microsoft Sentinel or Splunk, determining which events become alerts and which get suppressed. Default out-of-the-box rules produce noise. Noise produces alert fatigue. According to ISACA’s State of Cybersecurity 2024, 71 percent of security professionals report high stress levels tied directly to alert volume and understaffing. Alert fatigue is how analysts miss the incident that matters. This work requires dedicated skilled time, and most mid-market SOC plans do not budget for it.
Add training at $5,000 to $10,000 per analyst annually, including SANS GIAC certifications that run $7,000 to $9,000 per exam, ongoing vendor certifications, and the management overhead absorbed by your IT leadership. In our experience working with mid-market organizations, internal SOC business cases typically underestimate true annual cost by 40 to 60 percent. The total comes out to between $1.8 million and $3.2 million per year.
What Does a Managed Security Services Provider Actually Deliver?
Before you can compare cost, you need to know what you are actually buying, because the range of service quality across providers is wide enough to make two providers calling themselves MSSPs effectively incomparable.
A managed security services provider delivers continuous 24/7 monitoring, threat detection, alert investigation, and incident response as a subscription service. Depending on the tier, the provider supplies the SIEM (such as Microsoft Sentinel or Splunk), the EDR/XDR platform, a SOAR layer for automated response, threat intelligence feeds, and staffed analysts who work within documented playbooks aligned to frameworks such as MITRE ATT&CK and NIST CSF. Annual cost for mid-market organizations runs $100,000 to $800,000 depending on service depth and endpoint count.
The Service Spectrum
Managed security services come in distinct tiers. A basic MSSP covers log monitoring, alert triage, and device management for $100,000 to $300,000 annually. A managed detection and response (MDR) provider adds active threat hunting, investigation, and containment for $200,000 to $500,000. A full SOC-as-a-Service model, where the provider supplies the SIEM, EDR, SOAR, analysts, and incident response, runs $300,000 to $800,000 annually based on current market pricing for US mid-market organizations.
At the high end of full SOCaaS pricing, you are spending roughly one-quarter of what an equivalent in-house operation costs. That cost gap is real, and it is large.
If you want to understand where one tier ends and the next begins before you start talking to vendors, what a managed security service provider does walks through the scope in detail.
Where MSSPs Have Structural Advantages
An established MSSP brings detection content mapped to the MITRE ATT&CK framework and tuned against real threat actor behavior across hundreds of client environments, not built from default Sentinel or Splunk rules and refined over eighteen months of false positives. Their analysts have investigated thousands of incidents. Their playbooks reflect those investigations.
The breadth-of-visibility advantage is real and measurable. According to the IBM Cost of a Data Breach Report 2024, organizations that used security AI and automation identified and contained breaches an average of 98 days faster than those that did not. A provider operating at scale deploys that automation across every client environment simultaneously, compressing detection timelines in ways a single-organization SOC cannot replicate without equivalent investment.
When your Tier 2 analyst resigns, the provider’s coverage does not move with them.
Where MSSPs Underperform
Business context is the hardest thing to outsource. External analysts do not know your application architecture, your normal user behavior patterns, or which assets are operationally critical versus technically sensitive. That context gap generates alert noise, and it causes providers to escalate threats an internal analyst would immediately recognize as routine while missing the ones they would flag.
Not every MSSP does genuine investigation. Some triage alerts and pass them along without meaningful analysis, alert forwarding dressed up as a managed service. The distinguishing question to ask before signing is whether the provider performs correlation and investigation against the MITRE ATT&CK framework or simply escalates raw alerts with a severity label attached.
Vendor lock-in is real. Once your logging, detection logic, and response processes sit on a provider’s proprietary SIEM or XDR platform, migration takes six to twelve months. Negotiate data portability and detection rule ownership before you sign anything.
Before you sign anything, these 15 questions will tell you whether a provider does genuine investigation or just moves alerts from one queue to another.
Five Criteria, Side by Side
The table below compares in-house SOC against managed security services across the decision criteria that matter most to mid-market IT leaders and CFOs.
| Criterion | In-House SOC | Managed Security Services |
|---|---|---|
| Annual cost | $1.8M to $3.5M | $100K to $800K depending on tier |
| Time to operational | 12 to 18 months to reach maturity | 4 to 8 weeks for initial coverage |
| 24/7 coverage | Requires 8 to 12 analysts to sustain | Built into the service model |
| Threat intelligence | Limited to your own environment | Cross-environment visibility across provider client base |
| Business context | Deep: analysts know your environment | Shallow until provider invests in onboarding |
| Talent risk | High: turnover routinely exceeds 20% annually | Absorbed by the provider |
Which Option Is Right for Your Organization?
There is no universal answer, but the conditions that favor each option are clear enough to use as a decision filter.
Build in-house if you run more than 2,000 employees, carry a dedicated security budget above $2 million annually, and operate in a sector where regulatory or data-sovereignty requirements prohibit third-party system access. Choose managed security services if you are a mid-market organization that needs mature 24/7 coverage without an 18-month build timeline. Consider a hybrid model, a small internal team paired with an MSSP, if you need strategic control alongside operational coverage at roughly 40 to 60 percent of a fully in-house cost.
Build In-House When the Conditions Actually Support It
An in-house SOC makes sense when your sector functionally prohibits external access to your systems: certain defense contractors, classified environments, or industries where ITAR, FedRAMP, or data-sovereignty requirements make third-party monitoring a compliance problem rather than a preference. It also makes sense when you run more than 2,000 employees, carry a security budget above $2 million annually, and have the organizational patience to sustain a 24/7 operation through multiple hiring cycles.
The setup that does not work is an in-house SOC built on a constrained budget with a team of three. That produces the appearance of coverage while leaving real gaps during nights, weekends, and analyst transitions, which is exactly when most incidents escalate.
Go Managed When You Need Mature Coverage Without the Build Timeline
For mid-market organizations between 200 and 2,000 employees, a managed security services provider delivers mature 24/7 detection and response without the 18-month build timeline or the $2 million annual floor. When your compliance requirements, whether NIST CSF, HIPAA, PCI DSS, SOC 2, or CMMC, demand documented monitoring and audit-ready reporting, a small internal team cannot generate that output consistently without taking on operational debt somewhere else.
Not every MSSP clears that bar. Make sure yours does.
The managed security services cost guide for 2026 breaks down realistic pricing by service tier so you can benchmark what you are being quoted.
Consider the Hybrid Model If You Need Both Control and Coverage
A small internal team, typically a security manager and one or two engineers, paired with an MSSP handling 24/7 monitoring and first-response gives you business context where it matters and operational coverage where it is hardest to sustain internally. Your internal team owns strategy, compliance frameworks, and the provider relationship. The MSSP delivers detection depth and around-the-clock coverage.
Total annual cost for this structure runs $745,000 to $1.36 million based on current market benchmarks, roughly 40 to 60 percent of a fully in-house operation. Confirm this range against your specific environment and vendor pricing before finalizing a budget.
Take the Next Step
If you want a structured framework for evaluating managed security providers before committing to a direction, the complete guide to managed security services covers the full evaluation process, from understanding service tiers to the contract terms that protect you if the relationship underperforms.
