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Pfizer vs United Airlines: Founders, CEOs and History

Pfizer was founded in 1849 by Charles Pfizer, Charles Erhart and is led by Albert Bourla. United Airlines was founded in 1926 by Walter T. Varney, William Boeing and is led by Scott Kirby.

Company facts

Pfizer

Founded
1849
Headquarters
New York, New York
Current CEO
Albert Bourla
Employees
75,000

United Airlines

Founded
1926
Headquarters
Chicago, Illinois
Current CEO
Scott Kirby
Employees
113,200

Founders

Pfizer

  • Charles Pfizer

    Pfizer possesses a historic, immigrant founding story, rooted entirely in the rapid industrial expansion of 19th-century Brooklyn and defined by an effective, intensely meticulous German chemist and his ambitious confectioner cousin.

  • Charles Erhart

    Charles Erhart's role in Pfizer's founding is less celebrated than his cousin's, partly because the company carries Charles Pfizer's name and partly because his commercial contributions were less visible than the scientific achievements that drove the company'…

Pfizer founders in full

United Airlines

  • Walter T. Varney

    Walter T. Varney founded Varney Air Lines, which won Contract Air Mail Route 5 and flew its first route between Pasco, Washington, and Elko, Nevada, via Boise, on April 6, 1926.

  • William Boeing

    William Boeing formed Boeing Air Transport in 1927 to fly the Chicago-San Francisco air mail route and then, with Frederick Rentschler, created United Aircraft and Transport Corporation in 1929.

United Airlines founders in full

CEOs and their tenures

Pfizer

  1. Ian Read2010–2018

    Chief Executive Officer

    He ruthlessly cut R&D spending and eliminated tens of thousands of jobs, significantly boosting short-term earnings per share despite massive patent cliffs for blockbuster drugs like Lipitor.

    Source
  2. Albert Bourla2019–present

    Chairman and Chief Executive Officer

    A veterinarian by training who joined Pfizer Animal Health in 1993, Bourla became CEO on January 1, 2019 and Chairman in 2020.

    Source
  3. Dave Denton2022–2026

    Chief Financial Officer

    As CFO, he aggressively restructured the balance sheet following the Seagen acquisition, prioritizing debt reduction while defending the dividend.

    Source
  4. Chris Boshoff2025–present

    Chief Scientific Officer and President, Research & Development

    He completely restructured the research and development organization to focus on antibody-drug conjugates (ADCs), aggressively expanding Pfizer's pipeline of cancer therapeutics.

    Source
  5. Cecile Guegan2026–present

    Interim Chief Financial Officer

    She modernized the company's internal auditing and compliance structures, ensuring rapid but safe clinical execution for high-priority vaccine programs.

    Source
Pfizer CEO history in full

United Airlines

  1. Oscar Munoz2015–2020

    Former CEO

    Munoz handed over to Scott Kirby in May 2020 and served as executive chairman for a transition period.

    Source
  2. J. Scott Kirby2020–present

    Chief Executive Officer

    Under Kirby, United's revenue rose from $15.4 billion in 2020 to a record $59.1 billion in 2025, with premium cabins and MileagePlus as the main growth drivers.

    Source
United Airlines CEO history in full

Timeline: Pfizer and United Airlines side by side

  1. 1849Pfizer

    Pfizer Founded

    Charles Pfizer and Charles Erhart founded the company in Brooklyn.

  2. 1926United Airlines

    Varney Air Lines begins

    United traces its roots to Varney Air Lines and early air mail service.

  3. 1931United Airlines

    United Air Lines organized

    United Air Lines was formed to manage airline subsidiaries tied to United Aircraft and Transport.

  4. 1944Pfizer

    Penicillin Scale-Up

    Pfizer helped industrialize penicillin production during World War II.

  5. 1997United Airlines

    Star Alliance founded

    United became one of the founding members of Star Alliance.

  6. 1998Pfizer

    Viagra Approved

    The FDA approved Viagra in 1998.

  7. 2000Pfizer

    Warner-Lambert Deal

    Pfizer acquired Warner-Lambert, adding Lipitor.

  8. 2010United Airlines

    Continental merger closes

    UAL Corporation completed the Continental merger, later operating under the United brand.

  9. 2015United Airlines

    Oscar Munoz becomes CEO

    Oscar Munoz became chief executive of United in September 2015.

  10. 2019Pfizer

    Albert Bourla becomes CEO

    Albert Bourla became CEO of Pfizer in 2019. A veterinarian by training who joined Pfizer Animal Health in 1993, Bourla became CEO on January 1, 2019 and Chairman in 2020.

  11. 2020Pfizer

    BioNTech COVID Vaccine Partnership

    Pfizer and BioNTech brought Comirnaty through emergency authorization.

  12. 2020United Airlines

    Scott Kirby becomes CEO

    Scott Kirby succeeded Oscar Munoz as CEO in May 2020.

  13. 2023Pfizer

    Seagen Acquisition

    Pfizer completed the $43 billion Seagen acquisition.

  14. 2025Pfizer

    Chris Boshoff Becomes CSO

    Chris Boshoff became Chief Scientific Officer and President, Research & Development effective January 1, 2025.

  15. 2025Pfizer

    Metsera Acquisition

    Pfizer completed its acquisition of obesity drug developer Metsera in November 2025 for up to about $10 billion including CVRs.

  16. 2025Pfizer

    FY2025 Revenue Base

    Pfizer reported $62.579 billion of FY2025 revenue.

  17. 2025United Airlines

    Revenue reaches record level

    United reported record 2025 total operating revenue of $59.1 billion.

  18. 2026Pfizer

    Innovent Oncology Collaboration

    Pfizer signed a 12-program cancer collaboration with Innovent Biologics: $650 million upfront and up to $9.85 billion in milestones.

  19. 2026United Airlines

    Q2 2026 revenue up 16%

    United reported Q2 2026 revenue of $17.7 billion and raised full-year adjusted EPS guidance to $9-$11 despite nearly $6 billion in added fuel costs.

Acquisitions

Pfizer

  • Metsera, Inc.2025$7B
  • Seagen Inc.2023$43B
  • Medivation Inc.2016$14B
  • Wyeth2009$68B
  • Pharmacia Corporation2003$60B
  • Warner-Lambert Company2000$111B
All Pfizer acquisitions

United Airlines

  • Continental Airlines2010Undisclosed
All United Airlines acquisitions

Questions about Pfizer vs United Airlines

Who is the CEO of Pfizer Inc. and United Airlines Holdings, Inc.?

Pfizer Inc. is led by Albert Bourla and United Airlines Holdings, Inc. is led by Scott Kirby. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.

When was Pfizer Inc. founded vs United Airlines Holdings, Inc.?

Pfizer Inc. was founded in 1849 — 77 years before United Airlines Holdings, Inc., which was founded in 1926. Pfizer Inc.'s longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger United Airlines Holdings, Inc..

How many employees does Pfizer Inc. have compared to United Airlines Holdings, Inc.?

Pfizer Inc. employs approximately 75,000 people, while United Airlines Holdings, Inc. employs approximately 113,200. United Airlines Holdings, Inc. has the larger workforce at 113,200 employees, compared to Pfizer Inc.'s 75,000. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).

Where are Pfizer Inc. and United Airlines Holdings, Inc. headquartered?

Both Pfizer Inc. and United Airlines Holdings, Inc. are headquartered in United States, meaning they operate under the same primary regulatory and tax environment.

Who founded Pfizer Inc. and United Airlines Holdings, Inc.?

Pfizer Inc. was founded by Charles Pfizer, Charles Erhart. United Airlines Holdings, Inc. was founded by Walter T. Varney, William Boeing.

Which company has a longer operating history — Pfizer Inc. or United Airlines Holdings, Inc.?

Pfizer Inc. has been operating for approximately 177 years, making it the more established of the two companies. United Airlines Holdings, Inc. has been in operation for around 100 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 Pfizer vs United Airlines overview

Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.