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Pfizer vs Twilio: Founders, CEOs and History

Pfizer was founded in 1849 by Charles Pfizer, Charles Erhart and is led by Albert Bourla. Twilio was founded in 2008 by Jeff Lawson, John Wolthuis, Evan Cooke and is led by Khozema Shipchandler.

Company facts

Pfizer

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

Twilio

Founded
2008
Headquarters
San Francisco, California, United States
Current CEO
Khozema Shipchandler
Employees
5,492

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

Twilio

  • Jeff Lawson

    Jeff Lawson co-founded Twilio in 2008 and was CEO until January 2024, leading it through its 2016 IPO and the SendGrid and Segment acquisitions. He wrote Ask Your Developer (2021) about developer-led software.

  • John Wolthuis

    John Wolthuis co-founded Twilio in 2008. He architected the initial telephony backend that allowed developers to send text messages and make phone calls using a simple web API.

  • Evan Cooke

    Evan Cooke co-founded Twilio and served as its first CTO. He was instrumental in designing the company's highly reliable cloud architecture, ensuring the API could scale to handle massive, instantaneous spikes in SMS traffic (such as during Uber surges or Airb…

Twilio 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

Twilio

  1. Jeff Lawson2008–2024

    Co-founder and CEO

    As the long-time CEO, he aggressively scaled the company into a $60 billion behemoth before intense pressure from activist investors forced him to resign in 2024 following growth stagnation.

    Source
  2. Aidan Viggiano2023–present

    Chief Financial Officer

    As CFO, she strictly enforces the new profitability mandates, cutting massive amounts of real estate and software expenses across the enterprise.

    Source
  3. Khozema Shipchandler2024–present

    Chief Executive Officer

    Taking over as CEO in 2024, he shifted the company's focus away from unprofitable hyper-growth toward heavily optimizing the highly lucrative core communications platform.

    Source
Twilio CEO history in full

Timeline: Pfizer and Twilio side by side

  1. 1849Pfizer

    Pfizer Founded

    Charles Pfizer and Charles Erhart founded the company in Brooklyn.

  2. 1944Pfizer

    Penicillin Scale-Up

    Pfizer helped industrialize penicillin production during World War II.

  3. 1998Pfizer

    Viagra Approved

    The FDA approved Viagra in 1998.

  4. 2000Pfizer

    Warner-Lambert Deal

    Pfizer acquired Warner-Lambert, adding Lipitor.

  5. 2008Twilio

    Company Founded

    Jeff Lawson, Evan Cooke, and John Wolthuis founded Twilio and launched its first voice API for developers.

  6. 2010Twilio

    SMS API Launched

    Twilio added programmable SMS, which became its largest product line.

  7. 2015Twilio

    Authy Acquired

    Twilio acquired the two-factor authentication company Authy in 2015.

  8. 2016Twilio

    NYSE IPO

    Twilio listed on the NYSE under the ticker TWLO in June 2016, pricing shares at $15.

  9. 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.

  10. 2019Twilio

    SendGrid Acquisition

    Twilio completed its all-stock acquisition of email platform SendGrid, announced at about $2 billion.

  11. 2020Pfizer

    BioNTech COVID Vaccine Partnership

    Pfizer and BioNTech brought Comirnaty through emergency authorization.

  12. 2020Twilio

    Segment Acquisition

    Twilio acquired customer data platform Segment for about $3.2 billion, its largest deal.

  13. 2021Twilio

    Revenue Passes $2.8 Billion

    Twilio reported FY2021 revenue of $2.842 billion, up 61% year over year, with a net loss of $949.9 million.

  14. 2023Pfizer

    Seagen Acquisition

    Pfizer completed the $43 billion Seagen acquisition.

  15. 2023Twilio

    Restructuring

    Twilio cut about 17% of its workforce in February 2023 and made further reductions later in the year as it shifted toward profitability.

  16. 2024Twilio

    CEO Transition

    Co-founder Jeff Lawson stepped down as CEO in January 2024 and Khozema Shipchandler succeeded him.

  17. 2025Pfizer

    Chris Boshoff Becomes CSO

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

  18. 2025Pfizer

    Metsera Acquisition

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

  19. 2025Pfizer

    FY2025 Revenue Base

    Pfizer reported $62.579 billion of FY2025 revenue.

  20. 2025Twilio

    First Full-Year GAAP Profit and Stytch Deal

    Twilio reported FY2025 revenue of $5.067 billion and net income of $33.8 million, and completed its acquisition of identity platform Stytch on November 14, 2025.

  21. 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.

  22. 2026Twilio

    Growth Re-accelerates

    Twilio reported Q2 2026 revenue of $1.50 billion, up 22%, and raised its 2026 revenue growth outlook to 18%-18.5%.

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

Twilio

  • Stytch2025Undisclosed
  • Zipwhip2021$850M
  • Segment2020$3.2B
  • SendGrid2019$2B
All Twilio acquisitions

Questions about Pfizer vs Twilio

Who is the CEO of Pfizer Inc. and Twilio Inc.?

Pfizer Inc. is led by Albert Bourla and Twilio Inc. is led by Khozema Shipchandler. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.

When was Pfizer Inc. founded vs Twilio Inc.?

Pfizer Inc. was founded in 1849 — 159 years before Twilio Inc., which was founded in 2008. Pfizer Inc.'s longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Twilio Inc..

How many employees does Pfizer Inc. have compared to Twilio Inc.?

Pfizer Inc. employs approximately 75,000 people, while Twilio Inc. employs approximately 5,492. Pfizer Inc. has the larger workforce at 75,000 employees, compared to Twilio Inc.'s 5,492. 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 Twilio Inc. headquartered?

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

Who founded Pfizer Inc. and Twilio Inc.?

Pfizer Inc. was founded by Charles Pfizer, Charles Erhart. Twilio Inc. was founded by Jeff Lawson, John Wolthuis, Evan Cooke.

Which company has a longer operating history — Pfizer Inc. or Twilio Inc.?

Pfizer Inc. has been operating for approximately 177 years, making it the more established of the two companies. Twilio Inc. has been in operation for around 18 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 Twilio 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.