SOC Cost by Company Size 2026: 50 to 50,000 Employees
What a security operations function actually costs at each employee-count band, from sub-100 SMB ($30K-$80K MSSP) through to 50,000-employee multinational enterprise ($5M-$20M+ in-house plus regional partners). The structural cost crossover from MSSP to in-house happens at 2,000-5,000 employees.
Cost band by company size
Sub-100 employees (SMB)
Recommended model: MSSP / SOCaaS
In-house SOC is not economic at this scale (minimum viable 24/7 needs 8-12 FTEs = $1M-$1.5M, ten times the budget capacity). SOCaaS at $12K-$30K or basic MSSP at $30K-$80K covers the detection requirement. Often co-managed with IT-managed services rather than a dedicated security team. EDR (Microsoft Defender for Endpoint or CrowdStrike Falcon Go) plus basic email security plus SOCaaS is the typical lean stack.
100-500 employees (lower mid-market)
Recommended model: MSSP / Managed SOC
MSSP or managed SOC at tier 2-3 ($25-$50/endpoint/mo). 100-500 endpoints x $30/endpoint/mo x 12 = $36K-$180K. Plus SIEM (if co-managed) at $20K-$60K. Total $80K-$250K annually. Below the threshold where in-house SOC becomes competitive. Typical Security team: 1-2 named security engineers managing the MSSP relationship plus EDR / vulnerability management programmes.
500-2,000 employees (mid-market)
Recommended model: Hybrid SOC
Hybrid models start to make sense: internal tier 2-3 analysts handling complex cases plus MSSP for tier 1 / 24/7 baseline coverage. Typical structure: 2-4 internal security engineers (1 SOC lead, 1-2 detection engineers, 1 incident responder) plus MSSP at $150K-$400K for 24/7 tier 1. Total $400K-$800K. Saves 30-60 percent versus full in-house at this scale per /hybrid.
2,000-5,000 employees (upper mid-market)
Recommended model: Hybrid or lean in-house
The cost crossover zone: per-employee MSSP cost starts to approach the per-employee cost of a lean in-house SOC. Decision driver is no longer pure cost - it is talent availability, customisation needs, and data sovereignty. Hybrid still typically wins at the lower end of this band; lean in-house (8-10 FTEs) becomes credible at the upper end. Common pattern: in-house tier 2-3 plus offshore tier 1 partner.
5,000-15,000 employees (large enterprise)
Recommended model: In-house SOC
In-house SOC becomes cost-competitive because fixed costs (manager salaries, facility, training programmes) are spread across many more endpoints. Mature in-house staffing: 12-18 FTEs (5-6 Tier 1, 3-4 Tier 2, 2-3 Tier 3, 1 SOC manager, 1-2 detection engineers, 1-2 IR engineers). Plus tooling stack at $400K-$800K annually. Some enterprises continue to use MSSP for overflow or off-hours.
15,000-50,000+ employees (multinational enterprise)
Recommended model: In-house plus regional MSSP
Geographic and time-zone coverage drives this size into multiple SOC instances. Common pattern: one primary SOC (Americas, EMEA, or APAC HQ region) plus follow-the-sun regional MSSP partnerships. Internal headcount 25-60+ FTEs across geographies plus regional MSSP coverage at $500K-$2M per region. Tooling stack often includes multi-SIEM federation (Splunk Enterprise plus Microsoft Sentinel for regional Azure estates) at $1M-$3M annually.
The 2,000-5,000 employee cost crossover
The structural cost crossover from MSSP-economic-only to in-house-cost-competitive happens at 2,000-5,000 employees because of fixed-cost spreading. Below 2,000 employees, the SOC manager salary, the training budget, the facility allocation, and the recruitment overhead spread across too few endpoints to compete with the per-endpoint MSSP rate. Above 5,000 employees, those same fixed costs become a small per-endpoint addition while the per-endpoint MSSP fee compounds linearly.
Worked example: a 1,000-employee organisation at $25/endpoint/month MSSP rate = $300K/yr. The same 1,000 employees in-house = $1M-$1.5M (minimum viable SOC). MSSP wins decisively. A 10,000-employee organisation at $25/endpoint/month = $3M/yr. The same 10,000 employees in-house = $2.5M-$4M (12-18 FTE mature SOC plus tooling). In-house competitive or cheaper.
Decision drivers other than pure cost at the crossover: (1) data sovereignty - regulated industries may require on-premises data control; (2) customisation - in-house gives full control over detection rules and runbooks; (3) talent availability - if the local talent market cannot supply 12-18 security professionals, hybrid or MSSP remains the practical answer; (4) build timeline - MSSP 30-90 days vs in-house 12-18 months to full operational capability.
Related cost references
Cost-by-size bands triangulate from the Ponemon SOC Performance Report multi-year average, BLS OEWS occupation 15-1212 salary data, public MSSP per-endpoint pricing tier bands, and named-vendor SIEM cost references. Specific deployment cost depends on coverage scope, compliance regime, and existing tool investment.