Industry Guide
Security, Alarm & Monitoring: Business Valuation & Sale Guide
Security and alarm companies are valued primarily on recurring monitoring revenue (RMR), not installation volume — buyers treat the RMR base the way an insurance buyer treats a book of renewal commission, testing attrition, contract terms, and the true cost of acquiring each dollar of RMR before assigning it a multiple.
How Security, Alarm & Monitoring Companies Are Valued
Smaller dealer-model alarm companies are commonly assessed on SDE, while operators with an owned central station or multi-branch structure are more naturally evaluated on normalized EBITDA. A buyer will separate RMR from installation and service revenue, test the attrition rate against the RMR multiple already paid to acquire accounts, and confirm whether monitoring is self-performed or wholesaled to a third-party central station.
OwnerGauge applies a provisional security-monitoring-specific multiple range to the assessment, based on its own analysis of public 2025-2026 market research — RMR-based revenue streams command a premium similar to other subscription-style service businesses, provided attrition and contract assignability hold up under diligence.
Typical Multiple Range
3.3x–4.3x
SDE
6.0x–9.0x
EBITDA
Monitoring/RMR revenue streams command a premium similar to other subscription-style service businesses.
This is OwnerGauge's own directional analysis of public market research for Security, Alarm & Monitoring — not a cited institutional transaction dataset. Your specific range depends on your company's size, quality, and risk profile. See our methodology →
Revenue Quality in Security, Alarm & Monitoring
- RMR is the core asset in this category; buyers weight attrition and contract enforceability far more heavily than gross account count.
- Installation and one-time service revenue support the business but do not carry the multiple the way RMR does.
- Commercial and government monitoring contracts tend to be stickier and higher-margin than residential accounts, but also carry longer sales cycles and more compliance overhead.
Owner Dependency
- The owner often holds the dealer-program relationships, central-station contracts, and licensing that let the business monitor accounts across jurisdictions.
- A buyer tests whether licensing, permitting, and central-station relationships transfer cleanly, and whether sales and service run through anyone besides the owner.
Management & Workforce
- Technician licensing requirements vary by state and can constrain how quickly the business can expand into new territories.
- Buyers look for documented installation quality, service response times, and a sales function that isn't solely the owner's relationships.
What Can Make the Business More Attractive
- Lower attrition through proactive account retention and service-quality tracking
- Improve cost-per-RMR-dollar acquired in the sales and installation process
- Grow commercial and government account share relative to residential
- Document licensing and permitting coverage across every jurisdiction served
What Can Influence Valuation
- RMR base size, attrition rate, and cost-per-RMR-dollar acquired
- Contract term, assignability, and early-termination language
- Self-performed versus wholesale central-station monitoring
- UL-listing, licensing, and certification coverage by jurisdiction
- Residential versus commercial and government account mix
What Buyers May Evaluate
- RMR attrition rate against the multiple paid to build the book
- Contract assignability and early-termination exposure on change of ownership
- Central-station relationship terms if monitoring is outsourced
- Licensing and UL-listing compliance across every jurisdiction served
Common Transaction Risks
- Attrition is understated because it is measured inconsistently or infrequently
- Contracts are not clearly assignable to a new owner without customer consent
- Central-station or dealer-program agreements contain change-of-control clauses
- Licensing lapses in one or more jurisdictions surface during diligence
Preparing the Company for Sale
- Report RMR, attrition, and cost-per-RMR-dollar acquired on a consistent, defensible basis
- Review contracts for assignability and early-termination language before going to market
- Confirm licensing and UL-listing status in every jurisdiction served
- Document central-station and dealer-program agreements and any change-of-control provisions
Related reading
The value drivers above are covered in more depth here.
- Owner Dependency: Why It's the Single Biggest Lever on Your Valuation
- Customer Concentration: Why Buyers Draw the Line Around 20%
- Recurring Revenue: Why Buyers Pay More for Revenue That Doesn't Have to Be Re-Earned
- SDE vs. EBITDA: Which One Actually Matters for Your Business?
- How EBITDA Multiples Actually Work
- What Happens During Due Diligence When You Sell a Business?
How the Sale Process Works
Every sale moves through the same general stages — preparation, valuation, positioning, marketing, buyer outreach, indications of interest, a letter of intent, due diligence, definitive documentation, and closing.
See the full process →Frequently Asked Questions
How much is a Security, Alarm & Monitoring business worth?
Most Security, Alarm & Monitoring businesses trade in a range of roughly 3.3x–4.3x seller's discretionary earnings (SDE) — or roughly 6.0x–9.0x adjusted EBITDA. This range is OwnerGauge's own directional analysis of public market research, not a cited institutional transaction dataset. Where a specific company lands inside that range depends on its size, earnings quality, customer mix, and how dependent the business is on its owner. A directional estimate for your own company takes a few minutes through OwnerGauge's free assessment.
What multiple do Security, Alarm & Monitoring businesses sell for?
Smaller, owner-operated companies are usually assessed on SDE (about 3.3x–4.3x), while larger businesses with a management team in place are more often valued on adjusted EBITDA (about 6.0x–9.0x). The multiple itself is not a fixed number — it moves with earnings quality, growth, recurring revenue, and risk. Two businesses with identical earnings can be valued very differently.
What do buyers look for when buying a Security, Alarm & Monitoring business?
Buyers of Security, Alarm & Monitoring companies typically evaluate rMR attrition rate against the multiple paid to build the book, contract assignability and early-termination exposure on change of ownership, central-station relationship terms if monitoring is outsourced, and licensing and UL-listing compliance across every jurisdiction served. Most of a buyer's diligence is aimed at one question: how much of the current earnings will still be there after the owner leaves.
What lowers the value of a Security, Alarm & Monitoring business?
The most common value and deal-risk issues in this sector are attrition is understated because it is measured inconsistently or infrequently, contracts are not clearly assignable to a new owner without customer consent, central-station or dealer-program agreements contain change-of-control clauses, and licensing lapses in one or more jurisdictions surface during diligence. These rarely stop a sale outright, but they show up as a lower multiple, a larger earnout, or more of the price held back in escrow.
How do I prepare a Security, Alarm & Monitoring business for sale?
Practical preparation for a Security, Alarm & Monitoring business usually means report RMR, attrition, and cost-per-RMR-dollar acquired on a consistent, defensible basis, review contracts for assignability and early-termination language before going to market, confirm licensing and UL-listing status in every jurisdiction served, and document central-station and dealer-program agreements and any change-of-control provisions. Most of this work takes 12–24 months to show up in the financial record a buyer reviews, which is why preparation is worth starting well before you intend to go to market.
How long does it take to sell a Security, Alarm & Monitoring business?
A prepared lower-middle-market business typically takes about 6–12 months from going to market to closing, and preparation before that often takes longer than the sale itself. The stages — preparation, valuation, positioning, marketing, buyer outreach, letter of intent, due diligence, and closing — are the same across industries; how long each takes depends largely on how ready the financial records and management structure are.
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