Security Businesses for Sale in California.

Whether it's cybersecurity, physical security services, or security hardware, the acquisitions that generate the most interest have one thing in common: recurring contracts clients can't easily walk away from and a credentialed team that runs independently.

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11
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Rejigg lists 11 security businesses for sale in California.

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Featured Security Businesses in California

Showing 11 of 11 listings

Secure Enterprise Cloud Platform

Document management software platform generates 100% recurring subscription revenue with 82% margins and zero customer acquisition cost through channel sales.
Price$150K
Revenue$135.2K
SDE$117.1K

Forensic Technology Legal Consulting

Forensic technology expert witness practice with 50% margins, recurring court-appointed demand, remote operations, protected intellectual property, and more work than current capacity supports.
Price$325K
Revenue$269.8K
EBITDA$135.3K

Luxury Smart Home Technology Integrator

Smart-home integrator with $500k revenue per worker, $100k-plus recurring annual income growing 15% to 30%, documented operations, and long-term referral demand.
Price$4M
Revenue$2.6M
SDE$643K

Cybersecurity Solutions

Cloud Services business for sale in California.
Price$1.1M
Revenue$1M
SDE$359K

Healthcare Cybersecurity SaaS Business

Healthcare data access monitoring software generates $825k in annual recurring revenue, with 95% from three-year subscriptions and long-retained clients.
Price-
Revenue$825K
EBITDA$0

Healthcare and Government Talent Sourcing Business

Specialized staffing firm generating $250k SDE on a stabilized earnings base, with active government contracts and recurring placement and staffing revenue.
Price-
Revenue$950K
SDE$250K

Identity Governance Platform

Cybersecurity software company earns recurring subscription revenue in regulated markets, growing from $131k to a projected $1.5M with high customer switching costs.
Price$6M
Revenue$523.4K
EBITDA($477.1K)

Digital Services / Software Development Business

Web development business with five revenue-generating sites, a broad domain portfolio, and 20% recurring revenue from digital property management and maintenance contracts.
Price$1.5M
Revenue$900K
EBITDA$500K

AI Cybersecurity & Penetration Testing Platform

Cybersecurity testing software company earns 80% recurring subscription revenue from enterprise and government clients, including sensitive offline deployments.
Price$2M
Revenue$200K
SDE$85K

Enterprise AI Security Platform

Enterprise AI security software platform generated $1.2M revenue with $2M projected, through contracts covering model testing, monitoring, firewalls, and protection services.
Price-
Revenue$1.2M
SDE$400K

Commercial Security and Monitoring Solutions

Security services company generates $6.5M in fully recurring multi-year contract revenue with 38% EBITDA margins across commercial, government, and residential properties.
Price-
Revenue$6.5M
EBITDA$2.5M
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What to know

What to know about buying a security business in California

The largest listing counts are in professional services, retail, manufacturing, construction and software. Los Angeles, the Bay Area and San Diego carry most of the market, with the Inland Empire and Sacramento behind them. Contractors need a license from the Contractors State License Board, and the qualifier on that license must stay or be replaced at closing. California has a corporate income tax and an annual franchise tax on LLCs and corporations, and labor rules on classification, overtime and paid leave differ from other states. SBA 7(a) lending is active through many banks, with district offices in Los Angeles, San Francisco, San Diego, Sacramento and Fresno.

Security listings in California on Rejigg include guard services, alarm and monitoring companies, and security technology providers. Buyers of these businesses look at recurring monitoring contracts, licensed staff, and customer tenure. Plan for state licensing, staff turnover, and contract assignment terms.

Closed deals

Rejigg deals closed in California

Across 42 closed deals on Rejigg, the median time from first pitch to close is 177.5 days.

See all Rejigg deal data

Due diligence

What to Look For

Practical guidance from hundreds of real acquisition conversations.

Recurring vs. Project Revenue

  • Ask for a revenue breakdown separating monitoring contracts, managed security service agreements, annual software subscriptions, and maintenance agreements from one-time installation and project work.
  • The contracted, repeating income is what drives premium valuations — project work matters too, but it has to be re-won each cycle.
  • Monitoring contracts and managed service agreements that renew without re-selling are the single most important revenue quality signal across all security sub-categories.

Credentials and Clearances

  • Understanding exactly who holds which credentials and whether those people plan to stay is one of the most important due diligence questions in this category.
  • Security clearances, particularly high-level ones, take years to obtain and cannot be quickly rebuilt after a sale.
  • Low-voltage licenses, manufacturer certifications, and CISSP or similar credentials are genuine competitive advantages that transfer with the people who hold them.

Contract Depth and Transfer

  • Ask to see the contract list with expiration dates, renewal history, and what each agreement says about ownership transfers.
  • Long-term contracts — whether multi-year government agreements, commercial service agreements, or monitoring subscriptions with auto-renew — separate a company with stable income from one riding on project volume.
  • Government contracts require additional care, since some require formal approval or re-certification when ownership changes.

Equipment and Integration Stickiness

  • Ask what percentage of clients have installed equipment and what the renewal rates look like on service and monitoring agreements covering those systems.
  • In physical security and security technology, installed equipment creates a loyalty effect buyers can get genuinely excited about — cameras, access control panels, and intrusion systems wired into a building are expensive and disruptive to replace.
  • When clients have your hardware in their walls and your software in their workflows, they tend to stay.

Team and Operations Independence

  • Ask who handles each major client relationship and what happens to operations if the owner steps away for a month.
  • The best security acquisitions run without the owner dispatching every job — whether it's a security operations center staffed around the clock, a dispatcher routing technicians independently, or an operations manager who handles installs and client calls without the founder.
  • Management depth is what makes a security business truly transferable.

Valuation

What Should You Expect to Pay?

3x-5x

SDE

Owner-operated, project-heavy, limited contracts

5x-10x

EBITDA

Strong recurring contracts, credentialed team, independent operations

Security businesses land across a wide range because the difference between a company with a cleared team and multi-year government contracts versus one dependent on one-off installation projects is enormous from a risk and cash flow standpoint.

What drives a premium

Multi-year service or monitoring contracts with documented renewal history

A team with transferable security clearances, manufacturer certifications, or specialized licenses

Installed equipment at client sites creating high switching costs and sticky recurring revenue

Operations manager or security operations center that runs independently of the founder

SBA Loan Calculator

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For buyers

Make your next conversation count

A listing starts the conversation. These tools help you check the fit, understand the financials, and decide what to ask next.

Prepare for the first owner call

Clarify what is for sale, who runs the business, and what the owner wants from a transition.

Prepare your buyer introduction

Check the numbers behind the asking price

Explore financing scenarios, debt payments, and the cash a business needs to keep operating.

Try the SBA loan calculator

Turn interest into a clear next step

Use the diligence checklist and LOI templates to organize requests and prepare a proposal.

Explore the deal templates

Find a business worth a closer look

Keep your industry and location in focus. Explore matching businesses or get new listings as they arrive.

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Security Businesses in California

How do I contact the owner of a business I found on Rejigg?
Create a free Rejigg account; owners, and the brokers who run some sales, only hear from buyers through the platform. Open the listing to see the full profile: city, team size, financials, what is for sale, and the reason for selling. Sign Rejigg's standard Fee & Confidentiality Agreement for that business; it is the same form for every deal. Verify your phone, then send your pitch from the listing. Replies, meetings, and documents all run through Rejigg.
Can I email Rejigg to get introduced to an owner?
No. Rejigg does not forward emails to owners or brokers, so a note to support@ or hello@ with a listing link will not reach them. Create a free account, open the listing, sign the agreement for that business, verify your phone, and send your pitch; that reaches them in a few minutes.
How does buying a business on Rejigg work?
Create a free account, set your criteria, and browse off-market businesses sourced directly by our team. When you find a match, reach out to the owner through the platform, Rejigg handles NDAs, scheduling, and document sharing so you can focus on the deal.
How much does it cost to buy a business?
Prices vary widely; most small businesses on Rejigg sell for $500K to $10M. Beyond purchase price, budget for diligence costs (attorney and accountant fees, typically $10K-$50K) and working capital reserves. Getting started on Rejigg is free.
What financing options are available?
The most common path is an SBA 7(a) loan, covering up to 90% of the purchase price with 10-year terms. Seller financing is also common, where the seller carries a note for 10-30% of the price. Our SBA loan calculator helps you estimate monthly payments.
How is Rejigg different from a broker or marketplace?
Brokers represent the owner and typically charge the owner 5–10% of the sale price. Marketplaces list whatever gets posted. Rejigg vets every listing, sources many of them directly through our own owner outreach, connects you directly with owners when they sell directly, and gives you tools to manage the process from first contact through closing.
What is due diligence and what does it involve?
Due diligence is the verification process after you and the owner agree on terms (usually in a Letter of Intent). Budget 30-60 days and $10K-$30K for professional help. A Quality of Earnings report is increasingly common for SBA-financed deals.
Can I buy a business with no money down?
Rarely. Most acquisitions require 10-20% down, whether through SBA financing, seller financing, or cash. Some creative structures can reduce the cash needed upfront, but sellers generally want to see you have skin in the game.