Bayer vs Microsoft: Founders, CEOs and History
Bayer was founded in 1863 by Friedrich Bayer, Johann Friedrich Weskott and is led by Bill Anderson. Microsoft was founded in 1975 by Bill Gates, Paul Allen and is led by Satya Nadella.
Company facts
Founders
Bayer
Friedrich Bayer
Bayer was founded in 1863 in Barmen, now part of Wuppertal, Germany, by two men with complementary skills: Friedrich Bayer, a dye merchant, and Johann Friedrich Weskott, a master dyer.
Johann Friedrich Weskott
Johann Friedrich Weskott was a German master dyer who co-founded what became Bayer. In 1863 he and his friend Friedrich Bayer, a dye salesman, formed Friedr. Bayer et comp. in Barmen, now part of Wuppertal, Germany.
Microsoft
Bill Gates
Microsoft was founded in 1975 in Albuquerque, New Mexico, by Bill Gates and Paul Allen, childhood friends from Seattle who had spent their teenage years finding ways to get free time on mainframe computers.
Paul Allen
Paul Allen co-founded Microsoft and was crucial to its earliest technical and strategic decisions. He helped develop Altair BASIC, gave the company its original name, and participated in the operating-system opportunity that led to MS-DOS.
CEOs and their tenures
Bayer
- Werner Wenning2002–2010
Chief Executive Officer and Chairman of the Board of Management
Wenning led Bayer from April 2002 to September 30, 2010. He took over months after the worldwide withdrawal of the cholesterol drug Baycol and spent his early years settling the claims that followed.
Source - Marijn Dekkers2010–2016
Chief Executive Officer and Chairman of the Board of Management
Dekkers was CEO from October 1, 2010 to April 30, 2016 and the first Bayer chief executive hired from outside the company. He narrowed Bayer to life sciences: in 2014 Bayer bought the consumer care business of Merck and Co.
Source - Werner Baumann2016–2023
Chief Executive Officer and Chairman of the Board of Management
Baumann became CEO in May 2016 and retired at the end of May 2023 after 35 years at Bayer. His defining decision was the acquisition of Monsanto, completed on June 7, 2018 at USD 128 per share, about USD 63 billion in total.
Source - Bill Anderson2023–present
Chief Executive Officer and Chairman of the Board of Management
Anderson, a chemical engineer who previously ran Roche's pharmaceuticals division and Genentech, joined Bayer's Board of Management on April 1, 2023 and became CEO on June 1, 2023.
Source
Microsoft
- Bill Gates1975–2000
Co-founder and CEO
Gates built Microsoft's licensing model: software sold to many hardware makers rather than tied to one.
Source - Steve Ballmer2000–2014
CEO
Ballmer grew revenue from about $23 billion in FY2000 to about $78 billion in FY2013 and built the enterprise server and sales business that Azure later scaled on.
Source - Satya Nadella2014–present
Chairman and CEO
Nadella made Azure and Microsoft 365 the company's core, opened Microsoft to Linux and open source, and positioned it early in generative AI through OpenAI.
Source
Timeline: Bayer and Microsoft side by side
1863Bayer
Bayer Founded in Barmen, Germany
Friedrich Bayer and Johann Friedrich Weskott entered Friedrich Bayer et. Compagnie into the commercial register in Barmen, Germany, on August 1, 1863, to make synthetic fuchsine and aniline dyes for the textile industry using the new coal-tar chemistry.
1898Bayer
Heroin Marketed as a Cough Suppressant
Bayer began selling diacetylmorphine under the trademark Heroin as a cough suppressant and a supposedly non-addictive substitute for morphine. It stayed in Bayer's range until after World War I, long after its addictiveness was understood.
1899Bayer
Aspirin Registered as a Trademark
The Bayer chemist Felix Hoffmann had synthesized acetylsalicylic acid in a stable, pure form in 1897, and Bayer registered the trademark Aspirin on March 6, 1899. It became the first mass-market synthetic medicine and is still one of the most widely used.
1903Bayer
Veronal Barbiturate Sleep Aid Launched
Bayer licensed diethylbarbituric acid from Emil Fischer and Joseph von Mering and sold it as Veronal, the first barbiturate sleep aid.
1912Bayer
Headquarters Moved to Leverkusen
Under Carl Duisberg, Bayer moved its main chemical plant and head office to Leverkusen on the Rhine, building one of the largest industrial chemical sites in Europe. Leverkusen is still the group headquarters.
1918Bayer
US Assets Confiscated During World War I
Bayer's US assets and trademarks, including the Aspirin trademark, were confiscated by the Alien Property Custodian and sold to Sterling Products. Bayer lost its largest export market and the right to its own name in North America for decades.
1925Bayer
Merger into IG Farben
Bayer merged with BASF, Hoechst, Agfa and other German chemical companies to form IG Farbenindustrie AG, then the largest chemical and pharmaceutical group in the world. IG Farben's role in the Nazi war effort led the Allies to dissolve it after World War II.
1932Bayer
Prontosil Discovered by Gerhard Domagk
Gerhard Domagk, leading a research team in the Bayer laboratories, developed Prontosil, the first sulfonamide antibacterial and the forerunner of modern antibiotics. He was awarded the Nobel Prize in Physiology or Medicine in 1939 for the work.
1951Bayer
Re-established After the IG Farben Dissolution
Bayer was reincorporated as Farbenfabriken Bayer AG in 1951 after the Allied dissolution of IG Farben and rebuilt as an independent chemical and pharmaceutical company during West Germany's post-war recovery.
1975Microsoft
Microsoft Founded
Bill Gates and Paul Allen founded Microsoft after recognizing that the Altair 8800 needed usable programming software. Their first product, Altair BASIC, turned a hobbyist computer kit into a programmable platform.
1981Microsoft
MS-DOS Ships With IBM PC
IBM introduced its personal computer with MS-DOS 1.0 and other Microsoft products. The milestone mattered because Microsoft's operating-system work moved from a small software supplier's project into the emerging corporate PC standard.
1985Microsoft
Windows Launch
The release of Windows 1.0 began Microsoft's long move from command-line operating systems to graphical personal computing. The first version was not an instant blockbuster, but it gave Microsoft a user-interface path that could evolve with PC hardware.
1986Microsoft
Microsoft IPO
Microsoft went public on the Nasdaq in March 1986.
1990Microsoft
Office Suite Release
The bundling of Word, Excel, and PowerPoint into Microsoft Office created a productivity suite that became central to business work. The bundle simplified enterprise purchasing and made file compatibility a competitive weapon.
1994Bayer
US Bayer Trademark Rights Reclaimed
Bayer bought Sterling Winthrop's over-the-counter drug business from SmithKline Beecham for about USD 1 billion, recovering the US and Canadian rights to the Bayer name and the Bayer Cross confiscated in 1918, plus the Aspirin trademark in Canada.
1995Microsoft
Windows 95 Released
Microsoft released Windows 95 in August 1995.
1998Microsoft
U.S. Antitrust Case
The U.S. Department of Justice accused Microsoft of using Windows power to suppress browser competition. The case mattered because it placed Microsoft's platform tactics under public and legal scrutiny at the height of its PC strong position.
2001Bayer
Baycol Withdrawn Worldwide
Bayer voluntarily withdrew its cholesterol drug Baycol, sold as Lipobay outside the United States, in August 2001 after cases of fatal rhabdomyolysis, particularly at higher doses and in combination with gemfibrozil.
2006Bayer
Schering AG Acquired for About EUR 17 Billion
Bayer acquired Schering AG of Berlin for about $19.2 billion (EUR 17 billion) after counter-bidding against a hostile approach from Merck KGaA, adding the Mirena contraceptive franchise, oncology assets and a European pharmaceutical sales force.
2010Microsoft
Azure Commercial Launch
Azure gave Microsoft a way to compete in cloud infrastructure as enterprise customers began shifting workloads away from company-owned servers.
2014Bayer
Merck Consumer Care Acquired for USD 14.2 Billion
Bayer closed the purchase of the consumer care business of Merck and Co. on October 1, 2014 for USD 14.2 billion in cash, adding Claritin, Coppertone and Dr. Scholl's and making Bayer one of the largest non-prescription medicine companies in the world.
2014Microsoft
Satya Nadella CEO
Satya Nadella became CEO and moved Microsoft away from a strategy that forced every product to serve Windows. He prioritized Azure, Microsoft 365, open source, Linux support, cross-platform software, and a more collaborative developer posture.
2015Bayer
Covestro Spin-off
Bayer listed its materials science division as Covestro through an IPO on the Frankfurt Stock Exchange, ending its presence in plastics and polymers and leaving a group focused on pharmaceuticals, consumer health and crop science.
2016Microsoft
LinkedIn Acquisition
Microsoft agreed to acquire LinkedIn in 2016 for $26.2 billion in cash. The deal mattered because it added a professional identity network to a company already strong in Office, Dynamics, cloud services, recruiting tools, advertising, and enterprise sales.
2018Bayer
Monsanto Acquisition Completed for About USD 63 Billion
Bayer completed the acquisition of Monsanto on June 7, 2018, paying USD 128 per share, about USD 63 billion in total, the largest foreign acquisition by a German company.
2018Microsoft
GitHub Acquisition
Microsoft acquired GitHub for $7.5 billion in stock, reversing years of developer skepticism toward the company. The acquisition placed Microsoft inside the daily workflow of software developers across languages, clouds, and operating systems.
2020Bayer
USD 10.9 Billion Roundup Settlement
Bayer agreed to pay about USD 10.9 billion to settle roughly 113,000 Roundup claims while continuing to maintain that glyphosate does not cause cancer. The programme did not end the litigation and new claims kept arriving.
2023Bayer
Bill Anderson Becomes CEO
Werner Baumann retired at the end of May 2023 after 35 years at Bayer. Bill Anderson, previously head of Roche's pharmaceuticals division and of Genentech, joined the Board of Management in April and became CEO on June 1, 2023.
2023Microsoft
AI Leadership
Microsoft's expanded OpenAI partnership and Copilot product rollout placed the company at the center of enterprise generative AI adoption.
2023Microsoft
Activision Blizzard Acquisition Closes
Microsoft completed the Activision Blizzard acquisition after intense regulatory review. The deal added Call of Duty, World of Warcraft, Diablo, Overwatch, Candy Crush, and other franchises to Microsoft Gaming.
2024Bayer
Dynamic Shared Ownership Rolled Out
Bayer began introducing the Dynamic Shared Ownership operating model, replacing layers of middle management with self-directed teams.
2025Bayer
Nubeqa Approved in the US for Metastatic Castration-Sensitive Prostate Cancer
The FDA approved Nubeqa (darolutamide) in June 2025 for metastatic castration-sensitive prostate cancer, a third indication, followed by EU authorization in July 2025.
2026Bayer
Supreme Court Preemption Ruling and Proposed USD 7.25 Billion Roundup Class Settlement
In February 2026 Monsanto proposed a US nationwide class settlement funded by declining annual payments of up to USD 7.25 billion over as long as 21 years, which received preliminary approval in March 2026.
Acquisitions
Bayer
- Monsanto Company2018$63B
- Merck Consumer Care2014$14.2B
- Schering AG2006$21.2B
- Sterling Winthrop OTC Business1994$1B
Microsoft
- Activision Blizzard2023$68.7B
- Nuance Communications2022$19.7B
- ZeniMax Media2021$7.5B
- GitHub2018$7.5B
- LinkedIn2016$26.2B
Questions about Bayer vs Microsoft
Who is the CEO of Bayer AG and Microsoft Corporation?
Bayer AG is led by Bill Anderson and Microsoft Corporation is led by Satya Nadella. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.
When was Bayer AG founded vs Microsoft Corporation?
Bayer AG was founded in 1863 — 112 years before Microsoft Corporation, which was founded in 1975. Bayer AG's longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Microsoft Corporation.
How many employees does Bayer AG have compared to Microsoft Corporation?
Bayer AG employs approximately 88,078 people, while Microsoft Corporation employs approximately 223,000. Microsoft Corporation has the larger workforce at 223,000 employees, compared to Bayer AG's 88,078. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).
Where are Bayer AG and Microsoft Corporation headquartered?
Bayer AG is headquartered in Germany and Microsoft Corporation is headquartered in United States. Their different home markets mean they may face different regulatory frameworks, tax regimes, and currency exposure.
Who founded Bayer AG and Microsoft Corporation?
Bayer AG was founded by Friedrich Bayer, Johann Friedrich Weskott. Microsoft Corporation was founded by Bill Gates, Paul Allen.
Which company has a longer operating history — Bayer AG or Microsoft Corporation?
Bayer AG has been operating for approximately 163 years, making it the more established of the two companies. Microsoft Corporation has been in operation for around 51 years. A longer operating history often signals greater institutional resilience and brand recognition, though it can also mean slower adaptation to new market conditions.
Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the Bayer vs Microsoft overview