Buyers & Acquirers

Build vs Buy: When Acquiring an MSSP Makes More Sense

By Gui Carlos, CFA, Principal at Walden M&A··9 min read

Every MSP platform I advise eventually asks the same question: should we build security services ourselves, or acquire an MSSP?

The answer is almost never "build" — but not for the reasons most buyers think.

This isn't a philosophical debate about core competencies. It's a math problem. And the math overwhelmingly favors acquisition for any buyer operating on a PE timeline or facing customer demand for security services today.

What Is an MSSP Acquisition?

An MSSP acquisition is the purchase of a managed security services provider — a company that delivers outsourced cybersecurity monitoring, threat detection, incident response, and compliance services. Buyers are typically PE-backed MSP platforms, strategic acquirers expanding into security, or cybersecurity firms adding managed services revenue.

The appeal is straightforward: MSSPs carry some of the highest recurring revenue percentages in the IT services sector, often north of 85%, with gross margins that frequently exceed pure MSP operations. Security contracts tend to be stickier, longer-term, and less price-sensitive than traditional managed services.

In 2025, our deal tracker logged 466 MSP and MSSP transactions totaling $4.3B in transaction value. Security-focused targets represented a disproportionate share of competitive processes — multiple bidders, compressed timelines, and premium valuations.

The Real Cost of Building an MSSP From Scratch

Before you can evaluate whether to buy, you need an honest accounting of what building actually costs. Most internal projections I review dramatically underestimate three things: time to competence, the fully loaded cost of a SOC, and the revenue opportunity cost.

Here's what a realistic organic MSSP build looks like:

ComponentTimelineEstimated Cost
SOC build-out (tools, SIEM, SOAR)3–6 months$500K–$1.5M
Hiring SOC analysts (Tier 1–3)6–12 months to full team$800K–$2M annually
Compliance certifications (SOC 2, CMMC)6–18 months$200K–$500K
Vendor partnerships and threat intel feeds3–6 months$150K–$400K annually
Sales enablement and go-to-market6–12 months$300K–$600K
Total to initial capability18–36 months$3M–$8M before revenue

And that's the optimistic scenario. It assumes you hire the right people the first time, that your existing MSP clients convert to security services at a reasonable rate, and that you don't lose a single SOC analyst to the relentless cybersecurity talent market during the ramp.

The hidden cost most buyers miss: revenue opportunity cost. Every quarter you spend building is a quarter your existing clients are evaluating other security providers. I've seen MSP platforms lose key accounts to competitors specifically because they couldn't deliver security services fast enough.

When Buying an MSSP Is the Clear Winner

Not every situation calls for an acquisition. But in my experience advising both sides of these transactions, acquisition wins decisively in five scenarios:

1. You're on a PE timeline. If your hold period is 4–6 years and the thesis requires security revenue by year two, building is off the table. You cannot build a credible MSSP, generate meaningful EBITDA, and still have runway for the exit multiple expansion that justifies the investment.

2. Your clients are already asking. When existing MSP clients start requesting security services — or worse, buying them elsewhere — organic build is too slow. Acquisition lets you cross-sell into an installed base within 90 days of close.

3. You lack security DNA. Running a SOC is fundamentally different from running a NOC. The talent, the tooling, the incident response playbooks, the compliance frameworks — none of it transfers cleanly from traditional MSP operations. Buying an MSSP gives you a functioning team with operational muscle memory.

4. You need compliance certifications immediately. SOC 2 Type II, CMMC Level 2, HITRUST — these take 6 to 18 months to earn. Acquiring a certified MSSP gets you there overnight, assuming the certifications are structured to survive the transaction (more on this below).

5. The market window is closing. MSSP valuations have been climbing. The 75+ PE platforms we track are all chasing the same targets. Waiting 24 months to build means competing for acquisitions at higher multiples later — or missing the window entirely.

When Building Still Makes Sense

I'm not going to pretend acquisition is always the right answer. Building makes sense when:

  • You already have a functioning NOC with Tier 2+ engineering talent that can transition
  • Your capital is patient (family office, independent sponsor with a long hold)
  • You're targeting a narrow security niche (e.g., compliance-as-a-service for dental practices) where acquisition targets don't exist
  • You have a strategic vendor partnership that subsidizes the SOC build

Even in these cases, I'd argue a hybrid approach works better: build the foundation, then acquire a small MSSP ($1M–$2M revenue) to accelerate the timeline and import the team.

What to Look for in an MSSP Acquisition Target

If you've decided to buy, target selection is everything. Here's what separates a good MSSP acquisition from a regrettable one:

CriteriaStrong TargetRed Flag
Recurring revenue mix>85% MRR/ARRUnder 70% recurring
Client concentrationNo client >15% of revenueTop client >25% of revenue
SOC staffingDedicated SOC with Tier 1–3 analystsFounder-dependent security operations
Compliance certificationsSOC 2 Type II, relevant industry certsNo formal certifications
Tool stackModern SIEM/SOAR, vendor-agnosticSingle-vendor dependency
Contract termsMulti-year, auto-renewingMonth-to-month, no MSAs
Gross margin60%+ on security servicesUnder 50%, heavy pass-through costs
Vertical focusHealthcare, financial services, governmentNo vertical specialization

Pay special attention to how the SOC actually operates. I've seen MSSP targets that look great on paper but rely on a single senior analyst who handles every escalation. If that person leaves post-close, you've acquired a brand name and a stack of tools with nobody to run them.

Valuation Ranges for MSSP Targets

MSSP valuations vary significantly by size, growth rate, and the quality of the security operation. Here's what I'm seeing across current market conditions:

MSSP ProfileTypical EBITDA Multiple
Small (under $1M EBITDA), limited SOC4x–6x
Mid-market ($1M–$3M EBITDA), functioning SOC6x–9x
Established ($3M–$7M EBITDA), certified, strong team8x–12x
Premium ($7M+ EBITDA), enterprise clients, full compliance suite10x–14x

These are enterprise value to adjusted EBITDA ranges. The spread within each tier depends on recurring revenue quality, client concentration, growth trajectory, and whether the buyer is strategic (typically willing to pay more) or financial. For a deeper dive into how these multiples are derived, see our MSP valuation methodology.

Common Mistakes Buyers Make in MSSP Acquisitions

After working on dozens of these transactions, I see the same mistakes repeatedly:

Assuming compliance certifications automatically transfer. SOC 2 Type II audits are entity-specific. If you merge the MSSP into your existing legal entity, the certification doesn't carry over — you need a new audit. Structure the acquisition to keep the MSSP as a standalone entity until you've completed a bridge audit.

Ignoring tool stack integration costs. If the MSSP runs SentinelOne and your platform is standardized on CrowdStrike, migration costs and client disruption are real. Budget 6–12 months and $200K–$500K for tool stack harmonization.

Undervaluing the team. MSSP acquisitions are fundamentally talent acquisitions. If your retention plan doesn't include stay bonuses, clear career paths, and cultural integration, you'll lose the people who make the SOC work. I recommend allocating 10–15% of deal value to retention packages.

Overpaying for revenue that's really project-based. Some MSSPs bundle incident response projects and one-time assessments into their revenue figures. Normalize for truly recurring security monitoring revenue before applying a multiple.

How to Run an MSSP Acquisition Process

The playbook for acquiring an MSSP differs from a standard MSP tuck-in:

  1. Define your security thesis — What capabilities are you buying? SOC operations? Compliance expertise? A specific vertical's client base? This determines your target profile.
  2. Build a target list — Start with the acquisition search process tailored to MSSP criteria. Geographic overlap matters less for security services than for traditional MSP.
  3. Screen for SOC maturity — Request SOC operational metrics during initial conversations: mean time to detect, mean time to respond, analyst-to-client ratios, escalation procedures.
  4. Conduct security-specific diligence — Standard M&A diligence won't catch MSSP-specific risks. You need technical diligence on the SOC, tool stack audits, and compliance certification reviews.
  5. Structure for retention — Earnouts tied to client retention and team retention. Consider employment agreements with key SOC personnel as closing conditions.
  6. Plan integration before close — Have a 100-day integration plan that prioritizes client communication, tool stack decisions, and team retention before optimizing for cost synergies.

For a broader view of buyer strategy and positioning, I've written extensively about how the most successful acquirers approach the MSP and MSSP market.

The Bottom Line

The build-vs-buy question for MSSP capabilities comes down to three variables: your timeline, your existing security talent, and your capital structure.

If you have 18+ months of runway, existing security personnel, and patient capital, building can work — especially with a small acquisition to accelerate the process.

For everyone else — and that includes the vast majority of PE-backed MSP platforms I advise — acquisition is faster, cheaper on a risk-adjusted basis, and dramatically less likely to fail.

The MSSP acquisition market is competitive and getting more so. The buyers who win are the ones who move decisively, diligence thoroughly, and integrate intentionally.


Gui Carlos, CFA, is a Principal at Walden Mergers & Acquisitions, specializing exclusively in MSP and MSSP transactions. If you're evaluating MSSP acquisition targets or deciding between build and buy, book a confidential call to discuss your strategy.

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