The business sale advisory market includes three distinct professional categories — business brokers, M&A advisors, and investment bankers — each serving different transaction sizes and requiring different engagement structures. Understanding the differences helps Illinois business owners choose the right advisor for their specific situation.
Business Brokers
Business brokers specialize in transactions under $5M in total value, working with individual buyers, SBA-financed acquisitions, and owner-operated businesses. Illinois business brokers are typically licensed as real estate brokers, work on success-fee commissions of 8–12%, and manage the entire sale process from listing to closing. They are the appropriate advisor for the vast majority of Illinois small business sales and have deep experience with the specific operational and regulatory considerations in the state.
M&A Advisors and Investment Bankers
M&A advisors serve the middle market — transactions of $5M to $100M+. They typically charge both a retainer fee and a success fee (the Lehman formula is common: 5% of the first $1M, 4% of the second $1M, etc.). Investment banks serve larger transactions, usually above $50M, with institutional buyers and complex capital structures. For Illinois small business owners, M&A advisors become relevant when the business has grown to $3–5M in annual SDE or EBITDA and is likely to attract private equity or strategic buyer interest.
The best advisor for any Illinois business sale is the one with the most experience closing similar-sized transactions in similar industries in the Illinois market. Ask specifically about closed transactions, buyer databases, and marketing approach before committing to any engagement.
Recast Seller’s Discretionary Earnings, then apply a planning multiple for this Illinois business. Replacement labor is subtracted. This is a planning tool, not an appraisal.
Before debt, working-capital peg, holdback, and tax. Educational only.
What this Illinois guide is for
The Difference Between Business Brokers, M&A Advisors, and Investment Bankers is a working answer for owners and buyers. We will not invent a statewide average sale price. We will show the earnings math, the Illinois clocks that delay a close, and the questions a serious counterparty will ask.
Marketplace context from BizBuySell’s Q2 2026 Insight Report (median reported sale $349,250, 2.7× cash-flow multiple, 14% of owners with a professional valuation) is context — not your quote.
What a success-fee broker is for
We work on a success fee with no upfront listing retainer. The job is a number that survives a buyer, confidential outreach, and a close that calendars Illinois bulk-sale and license clocks. Compare broker fees and selling without a broker.
Documents to gather this week
- Three years of signed business tax returns and matching P&Ls
- Year-to-date P&L, balance sheet, and three months of bank statements
- Current lease, amendments, and a plain-English remaining term
- License and permit list, including who holds each card
- Top-customer concentration (names redacted until an NDA)
A simple Illinois close calendar
Plan six to twelve months from cleanup to close on a prepared Main Street deal. Start CBS-1 and any Chicago or Cook notices at letter-of-intent, not the week of funding. Landlord consent often takes longer than the lender.
Related pages on this site
Educational only — not legal, tax, or a formal appraisal. Confirm bulk-sale notices, licenses, and tax allocation with counsel and a CPA.
Questions
No. This is education and planning math. A professional opinion of value is a confidential conversation. We work on a success fee if you engage a sale process. There is no file-upload portal.
Start with adjusted seller’s discretionary earnings, then a vertical planning band. A marketplace average is context, not your quote.
Personal professional licenses do not transfer. Municipal registrations and state notices have their own calendars. Confirm the path before you grant exclusivity.
Most prepared Main Street sales take about six to twelve months from cleanup to close. License transfers, landlord consent, and SBA underwriting add weeks.
CBS-1 is the Illinois bulk-sale notice. File it at least ten business days before an asset transfer that meets the statute. Late filing can put Illinois tax risk on the buyer.