For owners of businesses generating $10M–$100M in revenue, the M&A process determines whether you get a fair price or leave money on the table. Headlines cover the announcement and the closing. They rarely explain what happens in between.
This article walks through each stage: what happens, who's involved, and what affects your timeline and final outcome. It also covers the one gate most sellers never see, the meeting where a buyer decides whether to issue an LOI at all.
Key Takeaways
- M&A typically runs strategy → sourcing → NDA → diligence → valuation → LOI → closing → integration
- Timelines range from 90 days for simple deals to 12-18 months for complex, regulated transactions
- Most value is won or lost in due diligence and post-close integration
- Between negotiation and the LOI sits an investment committee you are not in. Seven questions decide it, and none of them is about you
- Sellers who prepare in advance with clean financials move faster and command better terms
What Is the Merger and Acquisition Process?
The M&A process is the structured sequence a buyer and seller move through, from initial strategy to post-closing integration. It has one job: complete an ownership transfer at fair value and leave the business ready to operate under new ownership.
This differs from a simple business sale. M&A typically includes:
- Structured phases from strategy through integration
- Formal due diligence with institutional-grade verification
- Buyers such as private equity firms or strategic acquirers who expect discipline at every step
A handshake deal between two local owners doesn't carry the same verification requirements as a transaction involving a $50M revenue company and an institutional buyer.
Why the M&A Process Matters for Business Owners
Founders of $10M–$100M revenue companies increasingly sell to institutional buyers, not local competitors. Those buyers apply rigorous standards.
A 2024 Gartner survey found that only 54% of respondents met or exceeded their deal's revenue-synergy targets, with expected synergies averaging 23% of the acquired company's purchase price. That's a meaningful gap between what buyers expect and what they get.
What institutional buyers demand:
- Clean, credible financial statements
- Reduced founder dependency
- Demonstrable, not theoretical, growth potential
- Management teams that can operate without the founder
Exit Boston has seen this gap play out directly. In one regional label-manufacturing case, founder dependency, thin management alignment, and inconsistent financial reporting pushed the initial valuation below 4.8x EBITDA, despite a profitable business with recognized CPG customers.
The company spent six months addressing those gaps, reducing founder dependency and increasing recurring revenue, before returning to market.
Skip process discipline and you risk undervaluation, deal fatigue, or a transaction that collapses after months of work. Process discipline is how competitive tension and fair valuation get created.
The Stages of the M&A Process (Step by Step)
The M&A process typically runs through seven stages, grouped into four broader phases: internal readiness and strategy, market engagement, negotiation and verification, and legal transfer and integration. Here's each stage in order.
Stage 1: M&A Strategy and Preparation
This stage defines why a sale makes sense and what the ideal outcome looks like. It includes getting financials, valuation positioning, and operations in order before ever approaching the market.
Preparation typically covers:
- Financial readiness: cleaning up statements and clarifying how revenue converts to EBITDA
- Valuation improvement: identifying founder dependencies or infrastructure gaps that suppress multiples
- Operational readiness: building leadership depth and documented processes so the business can scale without the founder
Stage 2: Deal Sourcing and Buyer Outreach
Once preparation is solid, advisors build a qualified buyer universe rather than listing the company and waiting. That means mapping candidates against the company's industry, acquisition criteria, and transaction history:
- Private equity firms
- Strategic acquirers
- Family offices
At Exit Boston, research identifies ideal buyers before the company goes to market, then tailors materials to each buyer's criteria. The goal is competitive tension: multiple qualified buyers competing for the same asset.
Stage 3: NDA and Initial Diligence
Before sharing financials or operational details, buyers sign a confidentiality agreement. This protects sensitive information such as customer lists, margins, and trade secrets while the buyer conducts preliminary screening using limited materials, often a confidential information memorandum.
Stage 4: Valuation and Negotiation
After initial screening, value gets established using a combination of methods:
- Discounted cash flow (DCF): projects future cash flows and discounts them to present value
- Market comparables: pricing derived from similar public or private companies
- Multiples of earnings: applying a multiple to EBITDA or revenue based on comparable transactions
PwC's valuation guidance notes that selecting a point within a multiple range requires both quantitative analysis and judgment. No single method should be treated as mechanically dispositive. Triangulating across all three produces a more defensible number buyers are less likely to challenge later.
The Gate You Are Not In: The Investment Committee
Between a buyer agreeing terms with you and a buyer sending you an LOI, there is a meeting. You are not in it. At an institutional buyer it is the investment committee, and its participants are typically a managing partner as chair, the deal lead, an operating partner, the CFO, a risk officer and an associate. Its question is narrow: are we prepared to issue a Letter of Intent?
The discussion is not designed to teach. It is designed to decide. Whatever the agenda says, it maps back to seven underlying questions:
- Can this business operate without the founder?
- Is there a clear and achievable path to growth?
- Do the systems support scale, or constrain it?
- Are the financials reliable and defensible?
- Is the revenue durable, or episodic?
- Is the capital structure disciplined and sustainable?
- Is the founder aligned with the future of the business?
What that room does not discuss is instructive. As the scene is recorded in Exit Boston's own material: no one raised how long the founder had worked, how much he had sacrificed, or how proud he was of the business. They discussed leadership, scalability, capital, risk and return.
This is why preparation is not presentation. Every answer above is a fact about your company on the day the memo is written, and none of it can be argued into existence during a meeting you do not attend. The goal is not to impress the committee. It is to become the kind of business it cannot ignore.
Stage 5: Letter of Intent (LOI)
When valuation aligns enough to move forward, the LOI outlines key terms: price, structure, and often exclusivity. Most of its content is nonbinding, but confidentiality and exclusivity provisions typically are binding. Signing signals serious buyer intent and usually starts a 60–90 day exclusivity window during which the seller can't shop the deal elsewhere.
Stage 6: Confirmatory Due Diligence
This is the most intensive phase. The buyer verifies financial, legal, operational, and compliance details before finalizing terms. Common friction points include:
- Whether reported EBITDA holds up under scrutiny
- Founder dependency in customer or supplier relationships
- Whether revenue comes from long-term contracts or short-term purchase orders
When buyers question the numbers, they discount the price. That's why financial transparency matters more here than at any earlier stage.
Stage 7: Signing, Closing, and Integration
Once diligence clears, signing finalizes the purchase agreement and closing transfers ownership and consideration. Integration begins immediately after, and it determines whether the deal actually delivers the value both sides expected.
Key Factors That Affect the M&A Process
Several variables shape how long a deal takes and how it plays out:
- Financial record quality: Organized books and a clean cap table move faster through diligence
- Deal structure: Asset sales, stock sales, and mergers each carry different tax and liability implications
- Regulatory review: Antitrust filings under Hart-Scott-Rodino can add 30 days minimum, longer if a Second Request is issued
- Buyer type: Strategic acquirers often price synergies differently than private equity firms, which typically use leveraged buyouts with a 3-7 year hold
- Industry factors: Customer concentration, founder dependency, and operational maturity all affect timeline and terms
Common Issues and Misconceptions in the M&A Process
A few assumptions still derail otherwise solid deals. Clearing them up early keeps both sides aligned through the later stages.
Signing and closing can sit weeks or months apart. Regulatory approval, financing conditions, or third-party consents often open a real gap between the two events.
A high asking price does not guarantee a successful deal. Buyer fit and deal structure matter just as much. A lower headline offer with cleaner financing and better cultural fit can outperform a higher bid that falls apart in diligence.
Initial diligence and confirmatory diligence serve different jobs. Initial diligence happens before an LOI, using limited information. Confirmatory diligence happens after, during exclusivity, and is far more invasive. That is why sellers increasingly run diligence on themselves first, fixing weaknesses before a buyer finds them.
Integration, not closing, decides whether value sticks. Deals gain or lose most of their value after the transaction closes. Exit Boston works with owners on institutional readiness well before a sale process starts, so fewer issues surface in diligence, closing, and post-close integration.
When Professional M&A Guidance Matters Most
Founders navigating their first sale often underestimate three things: how buyers actually value a business, how negotiation leverage shifts throughout a deal, and how carefully confidential information must be managed throughout a transaction.
An advisor's role typically includes:
- Creating buyer competition to drive better terms
- Structuring the deal around the founder's financial goals, timeline, and legacy priorities
- Managing the deal timeline so the owner can keep running the business day-to-day
Rick McDonald, Exit Boston's founder, has been directly involved in 50 to 100 closed middle-market transactions over more than two decades, primarily for companies in the $10M-$100M revenue range. That kind of repetition matters. It's the difference between recognizing a red flag in week two of due diligence and discovering it in week ten.
Conclusion
The M&A process is a structured sequence of stages. It runs from strategy and preparation through sourcing, negotiation, verification, and finally integration.
Understanding each stage helps business owners protect value and avoid the missteps that cost deals money or kill them outright. Preparation and the right advisory support, such as Exit Boston's guidance for founder-led middle-market companies, often determine whether a deal reaches its full potential.
Frequently Asked Questions
Who pays who in a merger?
In most acquisitions, the buyer pays the seller or the seller's shareholders directly. In a true merger of equals, shareholders on both sides receive shares in the newly combined entity instead of cash.
What are the stages of the merger and acquisition process?
Strategy and preparation, deal sourcing, NDA, initial diligence, valuation, then a buyer's internal investment committee decision, LOI, confirmatory diligence, signing and closing, and integration.
How long does a typical M&A process take?
Simple private deals can close in around 90 days. Complex or regulated transactions often take 9-18 months, depending on diligence scope and antitrust review.
Who are the "Big Four" in M&A?
"Big Four" typically refers to the top accounting and advisory firms (Deloitte, PwC, EY, and KPMG) that offer M&A advisory services. This is distinct from investment banks, which handle deal execution and capital raising.
What is due diligence in M&A?
Due diligence is the buyer's investigation into a target company's financials, legal matters, operations, and risks before finalizing a deal. It happens in two phases: preliminary, before the LOI, and confirmatory, after.
What happens after an M&A deal closes?
Post-merger integration begins immediately, covering systems, teams, and culture alignment. This phase determines whether the deal actually realizes its intended financial and strategic value.
