Lower middle market private equity: what owners should know

What is the lower middle market?

The lower middle market is the segment of private companies that are larger than small main-street businesses but smaller than the mid-size firms big funds buy. There is no single definition. Firms set their own range, usually by EBITDA or by deal size.

That is why you will see different numbers on different sites. One firm may look at $3 to $15 million of EBITDA. Another may focus on deals by enterprise value. Before you compare any two sources, check which measure each one uses.

Capstreet looks for companies with $3 to $15 million of EBITDA, and describes itself as a lower middle market private equity firm in a 2022 PR Newswire release. See the full list of what we look for on our deal criteria page.

The lower middle market is often where a business first meets institutional capital. Many companies in this segment are owned by the entrepreneur who built them. How much the business depends on that owner shapes how buyers value it, as the sections below explain.

How does lower middle market private equity work?

A private equity firm raises money from investors, buys a stake in a private company and works with management to grow it. Later, it sells the company. In the lower middle market, the firm often buys a majority stake and the owner keeps part of the equity.

The usual steps look like this:

1. Introduction. An owner, advisor or banker starts a conversation.
2. Review. The firm studies the company’s financials, customers and team.
3. Letter of intent. The firm states its price and terms. See our guide on the letter of intent.
4. Due diligence. The firm tests the numbers, often with a quality of earnings review.
5. Close. The owner is paid for the stake sold. Part of the owner’s equity often stays in the business as rollover equity.
6. Growth. The firm adds capital, hires and, in many cases, add-on acquisitions.
7. Exit. The firm sells the company, and the owner’s remaining stake is sold with it.

For a walk-through from the seller’s side, read how to sell your business to private equity.

What are typical valuation multiples in the lower middle market?

Valuation multiples are market averages, not offers. CapitalPad, a private equity co-investment group, summarized GF Data transaction benchmarks in 2026. Averages generally rise as companies get larger, and your company can price above or below any average.

This section uses third-party data only. It does not describe what Capstreet pays or has paid. Capstreet does not publish valuation multiples.

CapitalPad reported that GF Data’s first-nine-months 2025 averages rose with deal size, from 6.4x for enterprise values of $10 million to $25 million to 8.3x for $50 million to $100 million. The same report says these are “averages of different acquired businesses, not a formula that automatically reprices a company as it grows.”

Source: GF Data’s Q3 2025 report, as reported by CapitalPad in 2026. “2025 YTD” ends September 2025. Enterprise value divided by adjusted EBITDA. Each figure is an average of different sectors and business quality.

Read the table with care. The $8 million to $10 million band sits below the band under it in both years. CapitalPad notes the pattern “is not a smooth ladder.” Bands hold different sectors, so use them for context only. For a deeper look at how buyers set a price, read our guides on EBITDA multiples in the lower middle market and how private equity values a business.

Why do published multiples disagree?

Published multiples differ because providers measure different companies, transactions and earnings. An asking price differs from a completed sale. An average differs from a median. A sample with add-ons differs from one with platforms only.

CapitalPad gives an example. GF Data’s platform-only discussion reported 5.9x for $10 million to $25 million deals through Q3 2025. The broader table reported 6.4x for the same tier. Use the number that matches the deal you are studying.

What drives a higher or lower multiple?

A multiple rises or falls with the quality and durability of earnings, the cash the business needs and the buyer’s confidence in the plan. Revenue quality, management depth, customer concentration and clean records move price more than company size alone.

CapitalPad’s framework, below, shows the questions buyers ask. It is not a formula.

Preparation helps. If you can explain customer retention, reconcile earnings and document working capital, buyers have fewer unknowns. Our guide on how to prepare your company for a private equity sale covers that work step by step, and the due diligence checklist for owners shows what buyers will request.

How does EBITDA get adjusted in a sale?

Buyers start with your reported earnings and then adjust them to show what the business earns on an ongoing basis. These changes are called add-backs. A buyer accepts an add-back only when documents support it. An expense is not removable just because a seller calls it discretionary.

Common adjustments include:

• One-time costs. A legal settlement or a move that will not repeat.
• Owner pay. Compensation above or below what a hired manager would cost.
• Personal expenses. Costs paid by the company that are not business costs.
• Savings. Cuts that a buyer can verify.

Small businesses are often priced on seller’s discretionary earnings. CapitalPad says that measure “commonly adds back an owner’s compensation and benefits.” A private equity buyer must also pay someone to do the owner’s job. So the cost to replace the owner stays in the earnings calculation. Otherwise, the multiple can look lower than it is.

A quality of earnings review tests this work. CapitalPad explains that it “examines the composition and sustainability of earnings.” It is not an audit and does not promise a higher price. Learn more terms in our glossary: adjusted EBITDA and add-backs.

How much does company size matter?

Size matters because bigger companies often have deeper management, more customers and easier access to financing. Buyers pay more for lower risk. CapitalPad explains that smaller companies trade lower because buyers weigh several limits at once.

The reasons CapitalPad lists are:

• Concentration. One large customer matters more in a smaller company.
• Management depth. Knowledge and relationships often sit with the owner.
• Financing limits. Lenders may allow less debt.
• Support for growth. The business may need new hires and systems.
• Fewer buyers. Some investors only fit larger deal sizes.

These same limits create chances to improve the business. A capable new leader, a repeatable sales process or a second location can raise earnings and reduce reliance on the founder. CapitalPad cautions that growing into a higher multiple “is not automatic.” Exit value still depends on earnings durability, integration quality, cash needs, management and buyer demand.

Where does Capstreet sit in the market?

Capstreet is a Houston-based private equity firm founded in 1990. It looks for entrepreneur-owned businesses services companies with $3 to $15 million of EBITDA, and makes primarily majority investments. Entrepreneurs reinvest alongside Capstreet.

Capstreet brings 30+ years, 50+ platform acquisitions and 200+ add-on acquisitions. We are thesis-driven investors and work through the Capvalue Framework®: Research, Build Scalable Platform and Drive Business Transformation. See how that works on Building Greatness and our buy and build strategy page.

We invest in 12 industries, from healthcare and manufacturing to insurance and government. View all of them on our industries page, or see the companies we have backed.

How do I compare a lower middle market firm with other buyers?

Compare buyers on structure, price, your future role and what happens to your team. Each type of buyer fits a different goal, so write down yours first. Then use the questions below with every firm you meet.

For a direct comparison, read private equity vs. strategic buyer and private equity vs. management buyout. If you want to decide how much of the company to sell, see majority vs. minority recapitalization.

Next step

Check your company against our deal criteria. If it looks like a fit, reach out for a confidential conversation at /contact. Call 713-332-2700 or email connect@capstreet.com.