# Mergers Explained: Types, Processes & Notable Examples

> **Definition**
>
> A merger is an agreement that combines two existing companies into a new legal entity, typically to enhance market share, reduce costs, or expand into new markets.

## What Is a Merger?

A merger combines two companies into one. Companies merge for various reasons, and there are different types of mergers. [Mergers and acquisitions (M&A)](https://www.investopedia.com/terms/m/mergersandacquisitions.asp) are commonly done to expand a company’s reach, expand into new segments, or gain [market share](https://www.investopedia.com/terms/m/marketshare.asp). All of these are done to increase [shareholder value](https://www.investopedia.com/terms/s/shareholder-value.asp). Often, during a merger, companies have a [no-shop clause](https://www.investopedia.com/terms/n/no-shop-clause.asp) to prevent purchases or mergers by additional companies.

### Key Takeaways

*   Mergers are strategic moves that often aim to expand market reach, reduce costs, or increase shareholder value by combining the strengths of two companies into a single entity.  
    
*   Various types of mergers exist depending on corporate goals, including conglomerate, congeneric, market extension, horizontal, and vertical mergers, each with distinct objectives and benefits.  
    
*   A horizontal merger involves companies in the same industry consolidating to achieve greater market share and economies of scale, as observed in the 1998 merger of Daimler-Benz and Chrysler.  
    
*   Conglomerate mergers combine companies with unrelated business activities, like the union of The Walt Disney Company and ABC, aiming to create synergy and shareholder value.  
    
*   Vertical mergers unite companies at different stages of the supply chain to optimize performance and cost savings, exemplified by the AOL and Time Warner merger in 2000.

![Merger](https://www.investopedia.com/thmb/QC0sbb6Q9prtEgzYl6nzCX7-lbI=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/merger-4192955-175cc5ac5e73455a833807739955b48a.jpg)

*— Investopedia / Joules Garcia*

## Understanding the Merger Process

A merger is the voluntary fusion of two companies on broadly equal terms into one new legal entity. The firms that agree to merge are roughly equal in terms of size, customers, and scale of operations. For this reason, the term "[merger of equals](https://www.investopedia.com/terms/m/merger_of_equals.asp)" is sometimes used. Acquisitions, [unlike mergers](https://www.investopedia.com/ask/answers/021815/what-difference-between-merger-and-acquisition.asp), are generally not voluntary and involve one company actively purchasing another.

Mergers are most commonly done to gain market share, reduce operational costs, expand to new territories, unite common products, grow revenues, and increase profits—all of which should benefit the firms' shareholders. After a merger, shares of the new company are distributed to existing shareholders of both original businesses.

> **Fast Fact**
>
> In 2023, the total value of U.S. mergers and acquisitions fell to $1.33 trillion from $1.49 trillion in the previous year.

## Exploring Different Types of Mergers

There are various types of mergers, depending on the companies' goals. Companies in the technology, healthcare, retail, and financial sectors will [frequently merge](https://www.investopedia.com/ask/answers/050715/which-industries-are-mergers-and-acquisitions-most-common.asp). Here are some of the most common types of mergers.

### Conglomerate Mergers: Definition and Examples

This is a merger between two or more companies engaged in unrelated business activities. The firms may operate in different industries or different geographical regions. A pure [conglomerate](https://www.investopedia.com/terms/c/conglomerate.asp) involves two firms that have nothing in common. A mixed conglomerate, on the other hand, takes place between organizations that, while operating in unrelated business activities, are actually trying to gain product or market extensions through the merger.

Companies without overlapping factors merge only if it benefits shareholder wealth by creating [synergy](https://www.investopedia.com/terms/s/synergy.asp), which enhances value, performance, and saves costs. An example of a conglomerate merger is The Walt Disney Company merging with the American Broadcasting Company (ABC) in 1995.

### Congeneric Mergers: Uniting Similar Sectors

A [congeneric merger](https://www.investopedia.com/terms/c/congeneric-merger.asp), also called a Product Extension merger, combines companies in the same market or sector. This type combines two or more companies operating in the same market or sector with overlapping factors, such as technology, marketing, production processes, and [research and development (R&D)](https://www.investopedia.com/terms/r/randd.asp). A product extension merger is achieved when a new product line from one company is added to an existing product line of the other company. When two companies become one under a product extension, they can gain access to a larger group of consumers and, thus, a larger market share. An example of a congeneric merger is Citigroup's 1998 union with Travelers Insurance, two companies with complementing products.

### Market Extension Mergers: Expanding Reach

This type of merger occurs between companies that sell the same products but compete in different markets. Companies pursue market extension mergers to access a bigger market and larger client base. For instance, to extend their markets, Eagle Bancshares and RBC Centura merged in 2002.

> **Important**
>
> A merger is the voluntary fusion of two companies on broadly equal terms into a new legal entity.

### Horizontal Mergers: Consolidating Competitors

A [horizontal merger](https://www.investopedia.com/terms/h/horizontalmerger.asp) occurs between companies operating in the same industry. The merger is typically part of consolidation between two or more competitors offering the same products or services. Such mergers are common in industries with fewer firms, and the goal is to create a larger business with greater market share and [economies of scale](https://www.investopedia.com/terms/e/economiesofscale.asp) since competition among fewer companies tends to be higher. The 1998 merger of Daimler-Benz and Chrysler is considered a horizontal merger.

### Vertical Mergers: Integrating Supply Chains

A [vertical merger](https://www.investopedia.com/terms/v/verticalmerger.asp) occurs when two companies producing parts or services for a product combine. A vertical merger occurs when two companies operating at different levels within the same industry's [supply chain](https://www.investopedia.com/terms/s/supplychain.asp) combine their operations. Such mergers are done to increase synergies achieved through cost reduction, which results from merging with one or more supply companies. One of the most well-known examples of a vertical merger occurred in 2000 when internet provider America Online (AOL) combined with media conglomerate Time Warner.

## Real-World Examples of Major Mergers

Anheuser-Busch InBev ([BUD](https://www.investopedia.com/markets/quote?tvwidgetsymbol=bud)) is an example of how [mergers work and unite companies](https://www.investopedia.com/ask/answers/08/typical-ma-experience.asp) together. The company is the result of multiple mergers, consolidations, and market extensions in the beer market. The renamed company, Anheuser-Busch InBev, is the result of the mergers of three large international beverage companies—Interbrew (Belgium), Ambev (Brazil), and Anheuser-Busch (United States).

Ambev merged with Interbrew, uniting the world's third and fifth-largest brewers. When Ambev and Anheuser-Busch merged, it united the number one and two largest brewers in the world. This example represents both horizontal merger and market extension as it was an industry consolidation and extended the international reach of all the combined company's brands.

The largest mergers in history have totaled over $100 billion each. In 2000, Vodafone acquired Mannesmann, a transaction valued at $190 billion, to create the world's largest mobile telecommunications company. In 2000, AOL and Time Warner vertically merged in a $164 billion deal considered one of the biggest flops ever. In 2014, Verizon Communications bought out Vodafone's 45% stake in Vodafone Wireless, the value of which was $130 billion.

## What Is a Horizontal Merger?

A horizontal merger is when competing companies merge—companies that sell the same products or services. The T-Mobile and Sprint merger is an example of a horizontal merger. Meanwhile, a vertical merger is a merger of companies with different products, such as the AT&T and Time Warner combination.

## What Is an SPAC Merger?

A [special-purpose acquisition company (SPAC)](https://www.investopedia.com/terms/s/spac.asp) merger generally occurs when a publicly traded SPAC uses the public markets to raise capital to buy an operating company. The operating company merges with an SPAC and becomes a publicly-listed company.

## What Is a Reverse Merger?

A reverse merger, also known as a [reverse takeover (RTO)](https://www.investopedia.com/terms/r/reversetakeover.asp), is when a private company purchases a publicly traded company. For instance, the New York Stock Exchange (NYSE) completed a reverse merger with Archipelago Holdings in 2006.

## The Bottom Line

Mergers happen when companies unite to form a larger one, usually for strategic reasons like gaining market share or other advantages.

> **Article Sources**
>
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>     
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>     
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>     
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>     
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>      
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>      
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>      
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