What Is My Security Company Worth in Illinois?

Illinois is home to over 600,000 small businesses, and the security services sector has grown steadily across the state's major metros, from Chicago's tight commercial real estate market to mid-sized manufacturing hubs downstate. If you've built a security company here over the last 10-30 years, you're sitting in a market that attracts consistent buyer interest from regional and national consolidators, but your valuation depends entirely on how you've structured revenue, customer relationships, and operations. Unlike states with no income tax, Illinois charges 4.95% corporate tax on profits, which affects how buyers model cash flow and how they structure deals to optimize their tax position after acquisition. Understanding what your business is actually worth requires more than guesswork: you need to know what Illinois buyers are paying today and why.

What Drives the Value of Security Companies in Illinois

Security businesses live or die on recurring revenue. A client on a three-year monitoring contract with auto-renewal is worth roughly three times more per dollar of annual revenue than a one-off alarm installation. Buyers will examine your customer base ruthlessly: how many clients have been with you for five-plus years, what is your annual churn rate, and how many are locked into written contracts versus informal agreements. Illinois has strong commercial real estate activity in Chicago and a stable base of manufacturing facilities, schools, and medical facilities downstate, all of which need reliable security services and tend to sign multi-year agreements. That stickiness is your baseline value. Everything else builds on it. Buyers also care intensely about whether you are the only person selling and managing relationships. If revenue depends on your phone, your relationships, and your reputation, the business is worth less because it cannot survive your departure. They want to see a team that can onboard new clients, retain existing ones, and scale without you working 60-hour weeks. Finally, employee quality and depth matter: trained technicians, certified installers, and supervisors who can manage jobs independently are expensive to replace, so their absence means a buyer will assume higher post-acquisition costs or take a valuation haircut.

EBITDA Multiples: What to Expect in Illinois

Security services companies with strong recurring revenue and solid customer retention typically trade at 4-7x EBITDA in the current market. The bottom of that range, around 4x, applies to businesses with moderate recurring revenue, customer concentration risk, or owner dependency. The top of the range, 6-7x, goes to companies with over 70% recurring revenue, low churn (under 10% annually), diversified customer bases, and management teams that operate independently of the founder. Illinois benchmarks align closely with national averages because buyer consolidators operate nationwide and use consistent valuation frameworks. A company with $500,000 in EBITDA and clean recurring revenue might reasonably expect an offer of $2.5-3.5 million, depending on growth trajectory and customer quality. However, if the same company depends heavily on your personal selling efforts or has major customers that represent over 20% of revenue, expect offers closer to $2-2.5 million. The difference is real money: it's the cost of integration risk and the likelihood that revenue will drop after you step away.

What Drags Your Valuation Down

• Owner as primary salesman: If you close most new deals and manage key relationships personally, buyers will assume 10-20% revenue loss post-acquisition and discount accordingly.
• Verbal customer agreements: Contracts that exist only in practice, not in writing, create legal risk and buyer doubt. Security services require formal scope-of-work documents and service-level agreements.
• Inconsistent or manual bookkeeping: If your P&L is hard to audit, if EBITDA adjustments are unclear, or if you track financials in loose spreadsheets, buyers will assume hidden costs and demand a lower price or walk.
• Customer concentration: If your top 3-5 customers represent over 40% of revenue, buyers know that losing even one will materially harm the business and will price in that risk heavily.
• Lack of non-competes: If former owners or departing employees can legally walk out and start a competing service, you've sold a business without protecting its value.
• Inconsistent service delivery or compliance issues: Security services depend on certifications, training, and reputation. Buyer due diligence will dig into customer complaints, license history, and insurance claims. One major incident can tank a deal.

How to Get an Accurate Valuation in Illinois

Two valuation methods dominate: EBITDA multiples and seller's discretionary earnings, or SDE. EBITDA multiples work best for businesses with professional management, clean financials, and clear recurring revenue streams. You take your normalized EBITDA, apply a reasonable multiple based on the factors above, and arrive at enterprise value. SDE is simpler but less accurate: it adds back owner discretionary items like an owner's salary, vehicle, travel, or other perks to net income, then applies a multiple. SDE multiples for security services typically range from 2-4x because the methodology tends to be less rigorous and the buyer assumes more post-acquisition work. Before you approach buyers, normalize your last three years of financials. That means removing one-time items, adjusting for owner compensation that a buyer won't repeat, and documenting any revenue that is non-recurring or cyclical. Prepare a detailed customer list with contract terms, renewal dates, and annual revenue for each account. Compile three years of tax returns, internally prepared P&Ls, and bank statements. Online valuation calculators are unreliable because they cannot account for local market conditions, buyer appetite in Illinois, or the specific quality of your revenue. A real valuation from an M&A advisor or a letter of intent from a serious buyer is the only number that matters.

What Buyers Are Actually Paying Right Now in Illinois

In a typical security services deal, a buyer will offer 75-90% of purchase price in cash at closing. The remainder comes as a seller note, an earnout, or both. A seller note is usually a two to three-year obligation at 4-6% interest: the buyer takes ownership and pays you over time. An earnout is more common in deals with growth risk: you keep a small stake in future profits for 12-24 months, incentivizing you to cooperate with the transition and ensuring the buyer retains your key customers. If your company has $2.8 million in enterprise value, expect 80% down at closing (about $2.24 million), with the remaining $560,000 as a seller note or earnout spread over 2-3 years. Transition periods typically last 60-180 days, during which you help with customer introductions, employee onboarding, and operational handoff. Illinois has consistent buyer activity from national consolidators like ADT, Vivint, and Vector Security, as well as regional PE firms and search funds looking to build a platform in the Midwest. Competition among buyers in your specific market segment will push price up: if three buyers are bidding for your company, you have negotiating leverage. If only one is interested, take their offer seriously but do not anchor to it. Work with an advisor who knows this market and can help you identify all potential buyers and generate competitive tension.