PE and Search Funds on Main Street

How Institutional Buyers Are Reshaping Small Business Acquisition—and What It Means for Sellers, Buyers, and Brokers

Introduction: Institutional Capital Meets Main Street

Search funds and private equity (PE) groups have long dominated headlines in mid-market and enterprise deals. Today, however, a measurable shift is underway: institutional and quasi-institutional buyers are moving steadily down-market, competing for the same Main Street businesses that individual owner-operators and family buyers have traditionally acquired. For anyone involved in small business acquisition—whether as a buyer, seller, or advisor—understanding this shift is no longer optional.

Across the thousands of businesses listed on the BizTrader businesses-for-sale marketplace, a new class of buyer is showing up: the search fund entrepreneur, the independent sponsor, and the lower middle market PE firm. Each brings distinct capital structures, return expectations, and integration playbooks. Sellers who recognize these differences can negotiate more effectively; brokers who understand them can match deals faster and close at higher multiples.

This article explains how search funds work, where private equity fits into the Main Street landscape, what deal structures these buyers prefer, and what sellers and advisors need to know to navigate a transaction with an institutional counterpart.

What Is a Search Fund? Defining a Growing Buyer Class

A search fund is an investment vehicle created by one or two entrepreneurs—often recent MBA graduates or experienced operators—who raise a small amount of capital to fund a two-year search for a single acquisition target. Upon identifying a business, they raise a larger pool of equity to fund the purchase, typically from the same investors who backed the initial search. The searcher then steps in as CEO and runs the acquired company.

There are two primary search fund models:

• Raises initial capital (typically $400K–$600K) from a network of institutional investors, searches full-time for 18–30 months, then raises acquisition equity separately. Traditional (funded) search fund:
• The searcher uses personal savings or minimal outside capital to explore acquisitions on a part-time or bootstrapped basis, often targeting smaller deals where SBA (Small Business Administration) 7(a) financing can cover the majority of the purchase price. Self-funded search fund (SFSF):
• Operates without committed capital, sourcing deals and then raising equity case-by-case, sometimes called an independent sponsor model. Accelerator / independent sponsor hybrid:

Search fund activity has grown substantially over the past decade. The model has expanded from a niche Stanford Business School concept to a global acquisition strategy practiced across North America, Europe, and Latin America. Self-funded search funds in particular are now a recognized path for operator-buyers targeting businesses with $500,000 to $3 million in seller’s discretionary earnings (SDE)—the pre-tax, pre-depreciation/amortization cash flow that represents the economic benefit to a working owner.

Crucially, search fund buyers are not passive investors. They acquire to operate. This distinguishes them from traditional PE firms and makes them, in many respects, more similar to individual owner-operators in their post-close behavior—while still bringing institutional-grade diligence processes and return expectations.

Private Equity’s Descent Into the Lower Middle Market

Private equity has historically focused on businesses with at least $5 million in earnings before interest, taxes, depreciation, and amortization (EBITDA). Saturation at the mid-market level—combined with fierce competition and compressed returns—has pushed an increasing number of PE sponsors to explore smaller targets, sometimes called the lower middle market (LMM) or Main Street segment.

Lower middle market PE firms typically target businesses with $1 million to $5 million in EBITDA. Their acquisition thesis often involves a “buy-and-build” or “platform-and-add-on” strategy: they acquire a foundational business, then use it as a platform to acquire smaller competitors, geographic expansions, or complementary service lines. Each subsequent acquisition—called an add-on or bolt-on—can be completed at lower multiples than the platform, creating value through scale.

For Main Street business owners, this creates a new type of buyer worth understanding:

• PE firms may pay higher absolute multiples than individual buyers in exchange for scalability and recurring revenue characteristics.
• They expect detailed financial documentation—often including a quality of earnings (QoE) report prepared by an independent accounting firm.
• They move on structured timelines, rarely providing seller flexibility on closing dates without contractual provisions.
• Sellers are frequently asked to roll over 10%–30% of their equity into the acquiring entity, retaining upside in the post-close business.

The critical consideration for sellers is alignment of expectations. A PE firm operates under a fund with a defined hold period—typically four to six years—after which they must exit. That means they are not buying to hold indefinitely, and sellers who care deeply about legacy and employee continuity may find that commitment harder to extract contractually.

Buyer Type Comparison: Finding the Right Fit

The table below summarizes the key characteristics of the most common institutional and quasi-institutional buyer types in the current small business acquisition market.

Buyer Type	Typical Target	Holding Period	Financing Mix	Seller Fit
Individual / Owner-Operator	$500K–$3M SDE*	Long-term / permanent	SBA 7(a) + seller note	Full exit, hands-on buyer
Search Fund (Self-Funded)	$500K–$2M EBITDA†	5–10 years	SBA + equity raise	Clean exit, some transition
Search Fund (Traditional)	$1M–$5M EBITDA	5–7 years	Equity + debt	Full exit, board oversight
Independent Sponsor	$2M–$10M EBITDA	4–7 years	Deal-by-deal equity	Partial or full exit
Lower Middle Market PE	$5M+ EBITDA	4–6 years	Levered buyout	Partial rollover common

*SDE = Seller’s Discretionary Earnings. †EBITDA = Earnings Before Interest, Taxes, Depreciation, and Amortization. Table represents general market norms; individual transactions vary.

Matching the right buyer type to a given business requires understanding both the business’s financial profile and the seller’s non-economic priorities, including timeline, employee retention, and involvement post-closing. Business brokers who pre-qualify buyers on these dimensions save significant time in deal negotiation.

The Search Fund Acquisition Process: From Outreach to Close

Whether traditional or self-funded, search fund buyers follow a recognizable process that sellers and brokers should understand:

1. Sourcing and Outreach

Searchers typically define target criteria before approaching any business—usually including industry vertical, revenue range, geographic market, and owner-operator dependency. They may approach businesses directly through proprietary outreach, use a business broker or M&A advisor, or scan marketplace listings. Expect initial inquiries to be detailed and well-researched.

2. Preliminary Diligence and NDA

After initial contact, a searcher will sign a non-disclosure agreement (NDA) and request a confidential information memorandum (CIM) or equivalent financial package. Unlike casual marketplace browsers, search fund buyers at this stage are serious. They may ask for three to five years of tax returns, profit and loss (P&L) statements, and customer concentration data within the first week.

3. Letter of Intent

A letter of intent (LOI) from a search fund buyer is typically non-binding except for exclusivity and confidentiality clauses. It will specify purchase price, deal structure (asset vs. stock purchase), working capital targets, and any contingencies. Exclusivity periods of 45 to 90 days are common.

4. Full Diligence

Search fund due diligence is more rigorous than what most individual buyers conduct. Expect legal, financial, operational, and sometimes customer diligence. Self-funded searchers using SBA financing must satisfy the lender’s documentation requirements in addition to their own, which can extend the timeline.

5. Financing and Closing

Traditional search funds typically close with a mix of investor equity and acquisition debt. Self-funded searchers often rely heavily on SBA 7(a) loans—which can finance up to 90% of eligible business acquisition costs—plus a seller note. Closing timelines range from 60 to 120 days after LOI execution, depending on lender and diligence complexity.

What Sellers Need to Know Before Engaging Institutional Buyers

Sellers considering an approach from a search fund or PE group should prepare more thoroughly than they might for a traditional individual buyer. The BizTrader seller resource center offers tools to help owners evaluate their readiness—but at minimum, sellers engaging institutional buyers should address the following before signing any LOI.

• Clean financials: Three to five years of tax returns reconciled to financial statements. Unexplained discrepancies will kill deals.
• Owner dependency audit: Institutional buyers discount businesses where the seller is the sole relationship holder, operator, or technical expert. Document processes, customer relationships, and key employee roles.
• Revenue quality: Recurring, contracted, or subscription revenue commands premium multiples. Project-based or one-time revenue is discounted. Know how your revenue is characterized.
• Working capital baseline aka target working capital: Most institutional deals include a working capital peg. Understand your normalized working capital before entering negotiations.
• Seller note readiness: Many PE and search fund deals include a seller note—typically 5%–15% of the purchase price—as a sign of seller confidence and a gap-filler between equity and debt. Be prepared for this ask.
• Rollover equity considerations: If a PE buyer requests equity rollover, engage a tax advisor before accepting. The structure of rollover has significant tax implications.

Sellers should also recognize that institutional buyers will conduct reference checks—on the business, on the industry, and sometimes on the seller directly. Honesty and transparency in preliminary discussions significantly reduces deal risk downstream.

For Business Brokers: Working Effectively with Institutional Buyers

Brokers who understand the institutional buyer landscape are better positioned to serve their seller clients and manage deal timelines efficiently. The BizTrader broker directory connects buyers and sellers with experienced M&A and business brokerage professionals across the country.

Several operational adjustments help brokers work effectively with search funds and PE groups:

• Pre-package financials: Institutional buyers expect a CIM and financial model before they invest serious time. A well-prepared package reduces back-and-forth and signals seller sophistication.
• Set diligence expectations upfront: Inform your seller client that institutional diligence will be more intensive than what individual buyers typically conduct. Surprises mid-process cause delays and price re-trades.
• Screen for capital adequacy: A self-funded searcher using SBA financing must be creditworthy. Request proof of funds or a lender pre-qualification letter before full disclosure.
• Understand exclusivity requests: Institutional buyers will typically require exclusivity after an accepted LOI. Negotiate a reasonable window (45–75 days) and include milestones to keep the buyer on pace.
• Know the fee implications: Some PE buyers expect “buy-side” representation. Clarify fee arrangements and any potential conflicts with your seller engagement letter before proceeding.

Brokers who regularly work with institutional buyers often develop credibility within the search fund and PE community, generating repeat deal flow as buyers seek new targets after completing initial acquisitions.

Deal Structure and Financing: Key Concepts for All Parties

Whether a deal involves a self-funded searcher with an SBA loan or a PE firm deploying fund capital, the core deal structure elements are similar. Understanding these terms helps sellers negotiate more effectively and avoid surprises at closing.

• Asset vs. Stock Purchase: Most Main Street deals are structured as asset purchases, which gives buyers a stepped-up tax basis and protects them from unknown liabilities. Sellers generally prefer stock sales for capital gains treatment. The negotiation often results in a hybrid structure with price adjustments.
• Earnouts: Institutional buyers sometimes propose earnouts—deferred purchase price contingent on post-close business performance. Sellers should scrutinize earnout metrics, measurement periods, and accounting controls before agreeing. Earnouts can create disputes if not carefully defined.
• Representations and Warranties: Sellers will be asked to make detailed representations (reps) about the business. Breaches can trigger indemnification claims post-close. Representations and warranties insurance (RWI) is increasingly common in deals above $10 million.
• Seller Notes: A promissory note from buyer to seller, typically at 5%–8% interest over five to seven years. SBA lenders may require seller notes to be on standby—meaning no payments—for the first two years of the loan.
• Management Retention Packages: PE buyers often offer key managers retention bonuses or phantom equity tied to their hold period exit. Sellers with strong management teams can use this as a negotiating point to protect employees post-close.

Regardless of deal structure, all parties benefit from engaging qualified advisors—an M&A attorney, a CPA with transaction experience, and where warranted, a financial advisor or intermediary—well before the LOI stage.

Take the Next Step on BizTrader

Whether you are a searcher evaluating your first acquisition, a PE firm exploring a new vertical, a business owner considering a sale, or a broker looking to market a listing to institutional buyers, BizTrader provides the marketplace infrastructure and resources to move your deal forward.

Explore available businesses, connect with qualified brokers, and access seller preparation resources at www.biztrader.com.

This article is for educational purposes only and does not constitute legal, financial, tax, or business brokerage advice. Always consult qualified professionals before making decisions, and verify all requirements with the appropriate authorities and counterparties.