Accenture vs IBM: Founders, CEOs and History
Accenture was founded in 1989 by Arthur Andersen Consulting Partners, George Shaheen and is led by Julie Sweet. IBM was founded in 1911 by Charles Ranlett Flint and is led by Arvind Krishna.
Company facts
Founders
Accenture
Arthur Andersen Consulting Partners
Accenture has no single founder. It began in the early 1950s as the business and technology consulting practice of Arthur Andersen, the accounting firm founded in 1913.
George Shaheen
George Shaheen led Andersen Consulting from 1989 until September 1999. By the time he left, the consulting unit had about 65,000 staff. In 1997 it began the ICC arbitration to separate from Arthur Andersen.
IBM
Charles Ranlett Flint
IBM possesses the most historic, foundational founding story in the entire history of modern computing, tracing its corporate lineage back to the genesis of data processing in the late 19th century and the aggressive, well-known leadership of a single, strong…
CEOs and their tenures
Accenture
- George Shaheen1989–1999
Managing Partner and CEO, Andersen Consulting
Led Andersen Consulting from its 1989 formation as a separate unit of Andersen Worldwide until September 1999, a period in which the consulting unit grew to about 65,000 employees and began the 1997 ICC arbitration to leave Arthur Andersen.
Source - Joe Forehand1999–2004
CEO
Succeeded Shaheen in November 1999 as global managing partner and CEO. Led the firm through the August 2000 arbitration ruling, the January 1, 2001 rename to Accenture and the July 19, 2001 NYSE IPO at $14.50 per share.
Source - William D. Green2004–2011
CEO
CEO from Sept 1, 2004 to January 2011, after serving as chief operating officer for client services. Revenue was $23.09B in FY2010, his last full fiscal year as CEO.
Source - Pierre Nanterme2011–2019
CEO
CEO from January 2011 and also chairman from February 2013. Revenue grew from $27.35B in FY2011 to $41.60B in FY2018 as originally reported.
Source - David Rowland2019–2019
Interim CEO
Chief financial officer who served as interim CEO from Jan 10, 2019 after Nanterme stepped down, until Julie Sweet took over on Sept 1, 2019.
Source - Julie Sweet2019–present
Chair and CEO
CEO since Sept 1, 2019 and chair since Sept 1, 2021; previously CEO of Accenture North America and, before that, general counsel. Revenue rose from $44.33B in FY2020 to $69.67B in FY2025, and headcount reached about 799,000 by May 31, 2026.
Source
IBM
- Louis V. Gerstner Jr.1993–2002
Chairman and CEO
Gerstner was the first IBM CEO hired from outside the company, coming from RJR Nabisco and American Express. He cut costs, cut mainframe prices, kept the company whole, and grew services into IBM's largest business.
Source - Samuel J. Palmisano2002–2011
Chairman, President and CEO
IBM focused on higher-margin services and software during his tenure. Ginni Rometty succeeded him in 2012.
Source - Virginia M. Rometty2012–2020
Chairman, President and CEO
IBM sold or exited lower-margin businesses under Rometty and bought Red Hat for about $34 billion. Arvind Krishna succeeded her in 2020.
Source - James J. Kavanaugh2018–present
Senior Vice President, Finance and Operations, and Chief Financial Officer
Kavanaugh is IBM's main voice on free cash flow targets, which reached $14.7 billion in FY2025.
Source - Arvind Krishna2020–present
Chairman and CEO
Krishna, a long-time IBM Research and software executive, led the Red Hat acquisition before becoming CEO.
Source
Timeline: Accenture and IBM side by side
1911IBM
Computing-Tabulating-Recording Company Founded
Charles Ranlett Flint merged the Tabulating Machine Company, International Time Recording Company, Computing Scale Company, and Bundy Manufacturing Company to form CTR - the company that would become IBM.
1924IBM
Renamed to International Business Machines
Under Thomas J. Watson Sr. CTR was renamed International Business Machines Corporation (IBM), reflecting the company's growing international presence and ambition beyond tabulating machines.
1952IBM
IBM 701 - First Commercial Computer
IBM launched the 701, its first commercially available electronic computer, marking the company's decisive entry into the electronic computing era and beginning its dominance of the mainframe market.
1953Accenture
Arthur Andersen GE feasibility study
Arthur Andersen's administrative services group, led by Joseph Glickauf, carries out a study for General Electric on computerizing payroll at Appliance Park in Louisville, Kentucky.
1964IBM
System/360 Launch
IBM launched the System/360, a compatible family of computers spanning all price points. The $5 billion investment was the largest privately funded project at the time and established the mainframe industry standard for decades.
1981IBM
IBM Personal Computer Launch
IBM introduced the IBM PC, which standardized personal computing architecture and created the PC industry. The open architecture decision inadvertently created the Wintel duopoly that would ultimately commoditize IBM's own PC business.
1989Accenture
Andersen Consulting formed
Arthur Andersen and Andersen Consulting become separate units of Andersen Worldwide Societe Cooperative, with George Shaheen as managing partner and CEO of the consulting unit. The more profitable unit pays the other up to 15% of profits.
1993IBM
Lou Gerstner Arrives - Turnaround Begins
Louis V. Gerstner Jr. Became CEO as IBM posted $8 billion in losses. His decision to keep IBM intact rather than break it up, and to pivot toward services, saved the company and redefined its business model for the next two decades.
1997Accenture
Arbitration with Arthur Andersen begins
Andersen Consulting files an arbitration claim with the International Chamber of Commerce, arguing that Arthur Andersen broke their agreement by building its own competing consulting practice.
1997IBM
Deep Blue Defeats Kasparov
IBM's Deep Blue supercomputer defeated world chess champion Garry Kasparov, becoming the first computer to beat a reigning world champion in a full match and establishing IBM's brand in artificial intelligence.
2000Accenture
Arbitration ruling and Avanade
In April 2000 Andersen Consulting and Microsoft form Avanade, a joint venture now majority owned by Accenture.
2001Accenture
Rename to Accenture and NYSE IPO
Andersen Consulting becomes Accenture on Jan 1, 2001, a name based on "Accent on the future" suggested by an employee in Oslo. The Bermuda-incorporated company prices its IPO at $14.50 per share and starts trading on the NYSE on July 19, 2001.
2004Accenture
William D. Green becomes CEO
William D. Green succeeds Joe Forehand as CEO on Sept 1, 2004; Forehand remains chairman.
2009Accenture
Reincorporation in Ireland
On May 26, 2009 the board approves moving the company's place of incorporation from Bermuda to Ireland, which remains its legal domicile.
2011Accenture
Pierre Nanterme becomes CEO
Pierre Nanterme becomes CEO in January 2011. The same year Accenture completes its purchase of insurance software company Duck Creek Technologies.
2013Accenture
Fjord acquisition
Accenture agrees in May 2013 to acquire Fjord, a service design consultancy, adding design capacity to Accenture Interactive.
2016Accenture
Duck Creek stake sold to Apax
Funds advised by Apax Partners buy a 60% stake in Duck Creek Technologies from Accenture, which keeps 40%.
2019Accenture
CEO transition and Droga5
Nanterme steps down for health reasons on Jan 11, 2019 and CFO David Rowland becomes interim CEO. Accenture Interactive completes the purchase of creative agency Droga5, and Julie Sweet becomes CEO on Sept 1, 2019.
2019IBM
Red Hat Acquisition Closes
IBM completed the $34 billion acquisition of Red Hat, the largest software acquisition in history at the time. The deal anchored IBM's hybrid cloud strategy and provided the OpenShift platform as the foundation for enterprise Kubernetes.
2021IBM
Kyndryl Spinoff
IBM spun off its managed infrastructure services business as Kyndryl Holdings, removing approximately $19 billion in low-margin revenue to focus the remaining company on higher-margin software and consulting.
2022Accenture
Accenture Song
On April 26, 2022 Accenture Interactive begins going to market as Accenture Song. FY2022 revenue rises 22% to $61.59B.
2023Accenture
$3B Data & AI investment
In June 2023 Accenture announces a $3B investment over three years in its Data & AI practice and a plan to double AI talent to 80,000 people.
2023IBM
Watsonx Platform Launch
IBM launched watsonx, its enterprise AI and data platform combining foundation models (Granite), data management (watsonx.data), and AI governance (watsonx.governance). The platform represents IBM's AI strategy for the generative AI era.
2024Accenture
Udacity acquisition
Accenture completes its purchase of online education company Udacity on May 20, 2024 to support its Accenture LearnVantage training business.
2025Accenture
FY2025 results and restructuring
FY2025 revenue reaches $69.67B with $80.62B in new bookings. In September 2025 Accenture outlines a six-month, $865M business optimization program, mainly severance, and moves to a single Reinvention Services unit.
2026Accenture
Faculty and Ookla deals
Accenture completes the acquisition of UK AI company Faculty on March 16, 2026 and agrees in March 2026 to buy Ziff Davis's connectivity division (Ookla, Speedtest, Downdetector) for $1.2B in cash. Q3 FY2026 revenue is $18.72B.
2026IBM
Confluent Acquisition Closes
IBM completed its roughly $11 billion acquisition of Confluent, adding real-time data streaming used by more than 6,500 enterprises to its AI and hybrid cloud software.
Acquisitions
Accenture
- Faculty2026Undisclosed
- Ookla (Ziff Davis Connectivity division)2026$1.2B
- Udacity2024Undisclosed
- umlaut2021Undisclosed
- Droga52019Undisclosed
- Fjord2013Undisclosed
IBM
- Confluent2026$11B
- HashiCorp2025$6.4B
- Apptio2023$4.6B
- Red Hat2019$34B
- PricewaterhouseCoopers Consulting2002$3.5B
- Lotus Development Corporation1995$3.5B
Questions about Accenture vs IBM
Who is the CEO of Accenture PLC and International Business Machines Corporation?
Accenture PLC is led by Julie Sweet and International Business Machines Corporation is led by Arvind Krishna. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.
When was Accenture PLC founded vs International Business Machines Corporation?
International Business Machines Corporation was founded in 1911 — 78 years before Accenture PLC, which was founded in 1989. International Business Machines Corporation's longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Accenture PLC.
How many employees does Accenture PLC have compared to International Business Machines Corporation?
Accenture PLC employs approximately 799,000 people, while International Business Machines Corporation employs approximately 264,300. Accenture PLC has the larger workforce at 799,000 employees, compared to International Business Machines Corporation's 264,300. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).
Where are Accenture PLC and International Business Machines Corporation headquartered?
Accenture PLC is headquartered in Ireland and International Business Machines Corporation is headquartered in United States. Their different home markets mean they may face different regulatory frameworks, tax regimes, and currency exposure.
Who founded Accenture PLC and International Business Machines Corporation?
Accenture PLC was founded by Arthur Andersen Consulting Partners, George Shaheen. International Business Machines Corporation was founded by Charles Ranlett Flint.
Which company has a longer operating history — Accenture PLC or International Business Machines Corporation?
International Business Machines Corporation has been operating for approximately 115 years, making it the more established of the two companies. Accenture PLC has been in operation for around 37 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 Accenture vs IBM overview