M&A synergies are benefits a buyer expects from combining businesses, including cost savings and additional revenue. Buyers should value those benefits according to the cash flow they can realistically capture after closing.
When evaluating an acquisition, the target's standalone performance tells only part of the story. The other question - and often the source of meaningful transaction value - is what additional value the buyer can create once the business becomes part of their platform. That incremental value is commonly referred to as M&A synergies.
In our experience as investment bankers advising strategic acquirers across a variety of markets, the strongest acquisition strategies are often built around clearly identifiable synergy opportunities. Sometimes those opportunities involve reducing expenses through purchasing leverage, operational integration, or supply chain efficiencies. Other times they involve generating new revenue through geographic expansion, cross-selling complementary products, expanding distribution channels, or deepening customer relationships.
Understanding synergies is critical because they can make an acquisition more compelling than the target's standalone financial performance suggests. They also help explain why some buyers can justify a stronger offer than others: buyers with the clearest path to capturing incremental value are often best positioned to compete for attractive targets.
But not all synergies are equally valuable, and not every buyer can capture the same opportunities.
Synergies are the incremental benefits created when two businesses are combined.
The basic premise is that the combined organization should be worth more together than the two companies operating independently.
In practice, synergies generally fall into three categories:
While all three can impact transaction economics, most middle-market acquisitions focus primarily on revenue and operational synergies.
For buyers, synergies represent future value creation opportunities. They also help explain why one buyer may value the same company differently than another.
For related strategy context, see buy-side M&A strategy.
Operational synergies, which primarily relate to cost savings and efficiency gains, are created when the combined company can operate more efficiently than either business could independently.
Common operational synergy examples include:
Operational synergies are attractive because they are generally easier to quantify.
Many anticipated operational savings depend on effective integration execution. A buyer can often review an expense category and determine with reasonable confidence whether that expense can be reduced, eliminated, or absorbed by existing infrastructure. That visibility makes operational synergies easier to model during diligence and easier to include in acquisition underwriting.
For further guidance, read M&A integration planning.
For example, we recently advised a manufacturer acquiring a glass fabricator that had already been one of its established suppliers. The acquisition rationale included bringing fabrication capabilities in-house, improving pricing control, leveraging existing administrative infrastructure, and capturing purchasing and operational efficiencies. Because the buyer already understood the supplier's operations through an existing commercial relationship, many of the synergy opportunities could be evaluated using actual historical experience rather than assumptions.
That does not mean operational synergies are risk-free. Facilities must still be integrated. Employees must be retained. Systems must work together. Buyers should evaluate costs to achieve the synergies, not simply the gross savings, and should have a well-thought-out plan to track and implement those synergies.
Revenue synergies occur when the combined organization can generate more sales or earnings than either company could independently.
Common revenue synergy examples include:
Revenue synergies are often a compelling component of an acquisition thesis because the upside can be significant.
However, they are also more difficult to prove.
Unlike reducing a known expense, revenue synergies depend on future customer behavior. Customers must actually buy additional products. Sales teams must execute. Operational capacity must support growth. Product offerings must fit together in a meaningful way.
Research from McKinsey's work on cross-selling synergies highlights that many organizations underestimate the execution required to successfully realize revenue synergies, particularly those built around customer behavior or sales-force effectiveness.
For this reason, experienced buyers spend considerable time validating revenue assumptions during diligence rather than accepting management forecasts at face value. A strong post-closing integration plan should also track acquired customer performance and, where possible, new customers gained as a result of the acquisition.
Operational synergies often offer more predictable near-term savings, while revenue synergies can produce larger long-term gains. The more valuable category depends on timing, investment needs and the likelihood of successful integration.
There is no universal answer.
Operational synergies generally provide greater certainty and can often be realized more quickly.
Revenue synergies generally provide greater upside but can take longer to realize.
The more important question is whether a buyer can realistically capture the projected benefits.
| Category | Operational Synergies | Revenue Synergies |
| Typical Source | Expense reduction | Incremental growth |
| Ease of Identification | High | Moderate |
| Ease of Measurement | High | Lower |
| Timing of Benefits | Faster | Longer-term |
| Management Control | Higer | Lower |
| Execution Risk | Lower | Higher |
| Potential Upside | Moderate | High |
| Underwriting Confidence | Higher | Lower |
| Long-Term Strategic Value | Moderate | Potentially significant |
Our experience with completed acquisitions and acquisition evaluations consistently reinforces this distinction.
Recently, in a regional mechanical contracting acquisition, the buyer identified opportunities to expand into a new geography, add skilled labor, enter new customer relationships, increase purchasing leverage, and improve margins through back-office efficiencies. Many of those opportunities were tangible and could be evaluated before closing.
Conversely, an education manufacturer acquisition evaluation included compelling cross-selling opportunities through an established dealer network, expansion into adjacent product categories, international growth opportunities, and sourcing benefits. However, much of the investment thesis depended on validating customer retention, sales execution, backlog conversion, and the sustainability of projected growth. Those opportunities were attractive but required additional proof.
Revenue and operational synergies can both create value. The real challenge is separating opportunities supported by evidence from those that remain future possibilities.
As highlighted in BCG's research on synergy planning, buyers that validate synergy assumptions before closing are often better positioned to realize value post-close.
Buyers estimate synergy value from incremental earnings and cash flow, net of integration costs, required investments, timing and execution risk. Additional revenue alone is not equivalent to additional value. Here’s how to determine the value of an acquisition target.
Buyers do not value synergies based on revenue growth alone.
They value synergies based on incremental cash flow.
Consider a simple example.
A buyer identifies $1 million of annual recurring expense savings through purchasing efficiencies, supply chain improvements, and administrative consolidation.
Assuming the savings are sustainable, the buyer creates approximately $1 million of incremental operating income before taxes and implementation costs.
A buyer identifies $3 million of additional annual revenue opportunities through cross-selling and expanded customer relationships.
Assume those sales generate a 30% contribution margin.
Although Scenario B produces three times as much revenue, it generates less operating income than Scenario A.
This illustrates one of the most common mistakes made in acquisition analysis. Incremental revenue is not the same thing as incremental value.
Sophisticated buyers evaluate:
Enterprise value is ultimately driven by expected future cash flow, not revenue alone.
Revenue synergies can meaningfully outperform operational synergies when buyers possess assets that accelerate growth in ways the target could not achieve independently.
The strongest situations usually involve:
One recent acquisition evaluation involved a manufacturer whose products could be sold through the buyer's existing dealer network while introducing additional offerings into the buyer's existing customer base. The strategic rationale included cross-selling opportunities, international expansion potential, purchasing synergies, and broader product offerings.
The diligence process focused less on identifying opportunities and more on determining whether those opportunities could actually be captured or whether the buyer would be better served developing those offerings internally.
That is the core of a disciplined revenue synergy analysis.
Operational synergies often create more value when buyers already possess significant operational overlap.
This is particularly common when:
The glass fabrication acquisition provides a useful example. Because the buyer already maintained a supplier relationship with the target, it understood pricing, operations, product quality, and customer needs. This created a clearer pathway to integration and made many synergy assumptions easier to evaluate than in a first-time relationship.
When buyers can clearly identify where cost savings will come from and how they will be achieved, those synergies often receive greater credit during acquisition underwriting.
Synergies may allow a strategic buyer to justify a higher purchase price, but buyers generally do not transfer all expected post-closing benefits to the seller.
This is where many discussions around synergies become misunderstood, and it’s important to understand how a buyer values a business.
Buyers generally do not pay sellers the full value of anticipated synergies.
The buyer earns those benefits after taking the risk of executing the acquisition while utilizing resources the buyer has already invested in.
However, synergies can materially influence valuation and buyer appetite.
Consider a business generating $5 million of EBITDA in an industry where standalone companies commonly trade near 5.0x EBITDA.
A financial buyer may view the business primarily on its standalone cash flows and value it near the prevailing market range.
A strategic buyer may identify opportunities to create an additional $2 million to $3 million of EBITDA through operational efficiencies, geographic expansion, purchasing leverage, product expansion, cross-selling, or other strategic benefits.
The buyer is unlikely to offer the seller the full future value of those synergies.
However, the buyer may be willing to pay 6.0x EBITDA instead of 5.0x EBITDA because those future opportunities allow the buyer to justify a higher valuation while still achieving attractive returns.
That distinction matters.
Synergies rarely increase value because buyers willingly share the upside. They increase value because buyers become more aggressive bidders when they recognize opportunities unavailable to competitors.
This is one reason strategic buyers can outbid financial buyers.
They may not be willing to accept lower returns; they may simply see sources of value that other buyers cannot capture.
Buyers can identify acquisition synergies by assessing operational overlap, complementary products, distribution opportunities, customer relationships and the capabilities each business contributes.
When evaluating acquisitions, understanding synergy opportunities creates a strategic advantage.
Buyers should ask:
Buyers should also consider how they compare with competing acquirers:
Often, the highest-value buyer is not necessarily the largest buyer.
It is the buyer that can create the most incremental value after closing.
The better you understand where those opportunities exist, the easier it becomes to identify attractive targets and build stronger acquisition strategies.
Across three recent assignments, we saw the same principle play out through three distinct synergy strategies.
A manufacturer acquired a long-standing supplier to vertically integrate production, improve pricing control, capture purchasing efficiencies, and add complementary offerings.
A mechanical contractor acquired a regional operator to accelerate geographic expansion, gain experienced labor, deepen customer relationships, and utilize existing infrastructure more efficiently.
A third acquisition evaluation centered on cross-selling opportunities, product adjacency, channel expansion, and international growth potential. Management spent significant time validating whether those opportunities were achievable before assigning full value to them.
Each target was attractive for different reasons. The common lesson was that value was driven not only by the target's existing earnings, but by what each specific buyer could achieve after closing.
The most valuable synergies are not necessarily the largest ones. They are the synergies a buyer can realistically achieve with confidence.
M&A synergies are a primary driver of many strategic acquisitions. Operational synergies generally offer greater certainty, while revenue synergies often offer greater upside. Both can create meaningful value when supported by a credible execution plan.
For buyers, the goal is not simply to identify synergies, but to determine which opportunities can be validated, funded, and executed. Understanding these synergies can also help you assess competing bidders and explain why other buyers may value the same business differently.
Ultimately, synergies are buyer-specific. The most valuable opportunities are not necessarily the largest on paper, but the ones a buyer can realistically capture. Buyers that recognize, validate, and execute those opportunities most effectively are often best positioned to create transaction value.
Revenue synergies increase sales through cross-selling, new markets or expanded distribution. Operational synergies improve efficiency or lower costs through purchasing leverage, consolidation and integration.
Operational synergies are generally easier to estimate because they often involve identifiable costs. Revenue synergies depend more heavily on customer behavior, sales execution and successful integration.
Buyers assess incremental earnings and cash flow rather than revenue alone. They also consider contribution margins, integration costs, capital requirements, timing and the likelihood of realizing the benefits.
Buyers generally retain much of the post-closing synergy value. However, a buyer with stronger synergy opportunities may justify a higher offer than a buyer valuing the business primarily on standalone performance.
Revenue synergies can create more value when a buyer has established distribution channels, complementary products, proven sales capabilities or other assets that allow the acquired business to grow faster.
Jim Fray
Jim Fray is an Associate at PCE, supporting the firm’s investment banking practice. He works on buy-side and sell-side engagements, recapitalizations, and strategic advisory, providing in-depth research and financial analysis to support client success.