{"id":9521,"date":"2021-03-18T11:18:02","date_gmt":"2021-03-18T10:18:02","guid":{"rendered":"https:\/\/www.reactive-executive.com\/the-biggest-corporate-mergers-of-the-21st-century\/"},"modified":"2025-09-29T18:00:55","modified_gmt":"2025-09-29T16:00:55","slug":"the-biggest-corporate-mergers-of-the-21st-century","status":"publish","type":"post","link":"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/","title":{"rendered":"The biggest corporate mergers of the 21st century"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">Sommaire<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#definition-of-a-business-merger\" >Definition of a business merger<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#why-do-companies-merge\" >Why do companies merge?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#what-are-the-biggest-corporate-mergers-of-the-21st-century\" >What are the biggest corporate mergers of the 21st century?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#the-role-of-reactive-executive-during-a-merger-acquisition\" >The role of Reactive Executive during a merger acquisition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#how-to-start-an-interim-management-mission\" >How to start an Interim Management Mission?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#choosing-the-right-interim-management-firm\" >Choosing the right interim management firm<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#the-places-of-intervention-of-reactive-executive\" >The places of intervention of Reactive Executive<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/staging.reactive2026.lets-preprod.com\/en\/the-biggest-corporate-mergers-of-the-21st-century\/#how-to-become-an-interim-manager\" >How to become an interim manager?<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Mergers are high points in the life of companies. <strong>The biggest corporate mergers of the 21st century<\/strong> are no exception. In this article, we will discuss the most important corporate mergers that took place in the third millennium. <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"definition-of-a-business-merger\"><\/span><strong>Definition of a business merger<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>A business merger is the <strong>pooling of the assets of two or more businesses<\/strong> . This merger can lead to the creation of a new entity or to the takeover of one company by another. <\/p>\n\n<p>There are four types of corporate merger:<\/p>\n\n<ol class=\"wp-block-list\">\n<li><strong>Merger-absorption<\/strong> : this is the most common type of merger. It consists of transferring the assets of the absorbed company to the acquiring company (employees, employment contracts, equipment, etc.).<\/li>\n\n\n\n<li><strong>Merger creation<\/strong> : rather rare, this type of merger consists of creating a new company from the merger of several companies.<\/li>\n\n\n\n<li><strong>Merger by contribution of securities<\/strong> : this merger is based on an exchange of securities. The absorbed company gives securities to the absorbing company. Thus, the latter can take control of the absorbed company.<\/li>\n\n\n\n<li><strong>Merger by partial contribution of assets<\/strong> : a company receives the contribution of assets and liabilities from another company. The contribution is then remunerated by shares in the absorbing company. Payment takes place through the allocation of securities and shares.<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"why-do-companies-merge\"><\/span><strong>Why do companies merge? <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.reactive-executive.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-1024x683.jpg\" alt=\"The biggest corporate mergers of the 21st century \" class=\"wp-image-34163\" srcset=\"https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-1024x683.jpg 1024w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-300x200.jpg 300w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-768x512.jpg 768w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-1536x1024.jpg 1536w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-2048x1365.jpg 2048w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160424.092-398x265.jpg 398w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p>Mergers are not easy processes to set up. So why are so many companies going down this path? Here are the main reasons: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>Facing economic difficulties requiring restructuring <\/li>\n\n\n\n<li>Safeguarding the assets of a company in difficulty <\/li>\n\n\n\n<li>Gain in performance, have more market share or be more competitive <\/li>\n\n\n\n<li>Increase its place in the market through the absorption of a competitor <\/li>\n\n\n\n<li>Acquiring know-how and new skills<\/li>\n\n\n\n<li>Mutualize costs (human, logistics, production, real estate, etc.) <\/li>\n\n\n\n<li>Accelerate the growth of the acquiring company <\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"what-are-the-biggest-corporate-mergers-of-the-21st-century\"><\/span><strong>What are the biggest corporate mergers of the 21st century?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p><strong>The three biggest corporate mergers of the third millennium<\/strong> involved American, British and German companies. <\/p>\n\n<p><strong>1. Vodafone AirTouch \u2013 Mannesmann AG: $202.8 billion <\/strong><\/p>\n\n<p>The British <a href=\"https:\/\/www.liberation.fr\/futurs\/2000\/02\/04\/vodafone-arrache-sa-fusion-avec-mannesmannnaissance-d-un-geant-europeen-des-telecoms-et-du-net_316620\/\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\">Vodafone AirTouch<\/mark><\/strong><\/a> acquired the German conglomerate at the very beginning of the 21st century, in February 2000. The main reason that motivated Vodafone AirTouch to merge with Mannesmann AG was that the German had developed a successful telecoms department in the 90s. <\/p>\n\n<p><strong>2. AOL \u2013 Time Warner: $181.6 billion <\/strong><\/p>\n\n<p>The second largest acquisition in history is to the credit of AOL. This young internet service provider at the time, FAI, decided in January 2000 to merge with the Hollywood studios Time Warner. America On Line (AOL) made this merger just before the internet bubble burst. After the bursting of this bubble, AOL recorded a loss estimated at nearly 100 billion dollars. What puts a stop to this new structure: in 2009, <strong><a href=\"https:\/\/www.lesechos.fr\/2009\/05\/time-warner-se-separe-daol-la-fin-dune-mega-fusion-456897\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\">Time Warner separates from AOL<\/span><\/mark><\/a><\/strong> .  <\/p>\n\n<p><strong>3. <a href=\"https:\/\/www.lemonde.fr\/technologies\/article\/2013\/09\/02\/accord-entre-verizon-et-vodafone-pour-130-milliards-de-dollars_3470071_651865.html\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\">Verizon Communications<\/span><\/mark><\/a> \u2013 Cellco (Verizon Wireless): $130.3 billion  <\/strong><\/p>\n\n<p>Originally, the American Verizon Communications and the British Vodafone created a joint venture: Cellco Partnership. Verizon Communications held 55% of the shares and Vodafone the remaining 45%. In 2013, Verizon bought back its missing shares: it became the leading mobile operator in the United States, thanks also to the acquisition of Alltel Wireless.  <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"the-role-of-reactive-executive-during-a-merger-acquisition\"><\/span><strong>The role of Reactive Executive during a merger acquisition<\/strong> <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.reactive-executive.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-1024x683.jpg\" alt=\"The biggest corporate mergers of the 21st century \" class=\"wp-image-34166\" srcset=\"https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-1024x683.jpg 1024w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-300x200.jpg 300w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-768x512.jpg 768w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-1536x1024.jpg 1536w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-2048x1365.jpg 2048w, https:\/\/staging.reactive2026.lets-preprod.com\/wp-content\/uploads\/2021\/03\/mois-doctobre-820-x-455-px-825-x-550-px-2025-03-13T160435.741-398x265.jpg 398w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p>Pour\u00a0<strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\"><a href=\"https:\/\/staging.reactive2026.lets-preprod.com\/projets\/fusion-acquisition-dentreprise\/\">r\u00e9ussir une fusion acquisition<\/a><\/span><\/mark><\/strong>, il faut des comp\u00e9tences et une expertise particuli\u00e8re. M\u00eame si beaucoup de compagnies envisagent de fusionner, peu d\u2019entre elles poss\u00e8dent en interne les ressources humaines pour le faire de fa\u00e7on optimale.\u00a0<\/p>\n\n<p>Indeed, only professionals with a particular profile will be able to manage these large-scale projects. They have received adequate training, have accumulated experience both in France and abroad and know the latest regulations in force.  <\/p>\n\n<p>The role of Reactive Executive is to provide you with managers capable of carrying out this type of mission.  <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"how-to-start-an-interim-management-mission\"><\/span><strong>How to start an Interim Management Mission?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>A mission with Reactive Executive takes place in 4 phases.  <\/p>\n\n<p>1\u00b0) We define with you your needs and objectives. Once the course has been set, we are able to move on to the second stage: the choice of the interim manager.<\/p>\n\n<p>2\u00b0) We scrupulously select the manager according to his profile and your expectations. Then we organize an interview with the interim manager.  <\/p>\n\n<p>3\u00b0) Once all the actors are together, the mission can begin. In close collaboration with you and your teams, our manager proceeds to the proper deployment of the strategy established upstream and to the follow-up of the actions carried out.  <\/p>\n\n<p>4\u00b0) At the end of the mission, an assessment is made to assimilate the repercussions of our action and to take stock of the objectives established at the beginning of the mission.  <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"choosing-the-right-interim-management-firm\"><\/span><strong>Choosing the right interim management firm  <\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>To ensure that your merger and acquisition takes place under the best conditions, we advise you to <a href=\"https:\/\/www.reactive-executive.com\/en\/\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\">choose a firm of interim managers<\/span><\/mark><\/strong><\/a> with a dense and diversified network. This important network allows the firm to choose the right manager to carry out its mission.  <\/p>\n\n<p>The second criterion to check is the international presence of your firm. To carry out operations requiring a global vision, such as the acquisition of a subsidiary for example, this criterion ensures that your firm is well able to take into account the various aspects related to international affairs.  <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"the-places-of-intervention-of-reactive-executive\"><\/span><strong>The places of intervention of Reactive Executive<\/strong> <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>Our field of action extends internationally. We also operate in France. For more than 10 years now, we have been supporting <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Start-up\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\">start-ups<\/span><\/mark><\/strong><\/a> , <strong><a href=\"https:\/\/www.reactive-executive.com\/en\/projets\/digital-transformation\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\">ETIs<\/span><\/mark><\/a><\/strong> , SMEs\/SMIs and large groups on their <a href=\"https:\/\/www.reactive-executive.com\/en\/projets\/digital-transformation\/\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff0000\" class=\"has-inline-color\"><span style=\"text-decoration: underline;\">digital transformation<\/span><\/mark><\/strong><\/a> and relay management projects. These experiences make us one of the leading firms in the field of interim management.  <\/p>\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"how-to-become-an-interim-manager\"><\/span><strong>How to become an interim manager?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n<p>To <strong>become an interim manager at Reactive Executive<\/strong> , you must have acquired at least 20 years&#8217; experience in project management (General Management, HRD, financial management, etc.). You must also be mobile to be able to best meet the needs of our customers in the field.  <\/p>\n\n<p>Also, you must have led projects in different fields and have developed a generalist, even specialized profile (knowledge of Chinese, in-depth knowledge of an industrial sector, etc.).  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mergers are high points in the life of companies. The biggest corporate mergers of the 21st century are no exception. In this article, we will discuss the most important corporate mergers that took place in the third millennium. Definition of a business merger A business merger is the pooling of the assets of two or [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":34162,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[81],"tags":[],"class_list":["post-9521","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-items"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Biggest Corporate Mergers of the 21st Century<\/title>\n<meta name=\"description\" content=\"Discover the biggest corporate mergers of the 21st century. 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