International Business Machines Corporation
Company History
IBM History: Founding, Growth & Key Milestones
Founded 1911 in Endicott, United States
When was IBM founded?
IBM was founded in 1911 in Endicott, United States by Charles Ranlett Flint, making it 115 years old.
- Founded
- 1911
- Founding place
- Endicott, United States
- Founders
- Charles Ranlett Flint
- Headquarters today
- Armonk, New York
- Milestones documented
- 12 (1911–2026)
- Current CEO
- Arvind Krishna
- Acquisitions
- 7
| Year | Event |
|---|---|
| 1911 | Computing-Tabulating-Recording Company Founded |
| 1924 | Renamed to International Business Machines |
| 1952 | IBM 701 - First Commercial Computer |
| 1964 | System/360 Launch |
| 1981 | IBM Personal Computer Launch |
| 1993 | Lou Gerstner Arrives - Turnaround Begins |
| 1997 | Deep Blue Defeats Kasparov |
| 2005 | PC Business Sold to Lenovo |
| 2019 | Red Hat Acquisition Closes |
| 2021 | Kyndryl Spinoff |
| 2023 | Watsonx Platform Launch |
| 2026 | Confluent Acquisition Closes |
- Where was IBM founded?
- IBM was founded in Endicott, United States in 1911. wikidata.org
- Who founded IBM?
- IBM was founded by Charles Ranlett Flint.
- When did IBM start?
- IBM was founded in 1911.
- How old is IBM?
- IBM is 115 years old as of 2026.
Founding Story
In the 1880s Herman Hollerith built electric punch-card tabulating machines to speed up the US Census; they processed the 1890 count far faster than hand tallying. In 1911 financier Charles Ranlett Flint merged Hollerith's Tabulating Machine Company with the International Time Recording Company, the Computing Scale Company of America, and Bundy Manufacturing to form the Computing-Tabulating-Recording Company (CTR). Thomas J. Watson Sr. joined in 1914, focused the company on tabulating machines and a disciplined sales force, and renamed it International Business Machines in 1924.
Founders
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 salesman. The foundational origins of the conglomerate trace back to the 1880s and the invention of the primitive punched card tabulating machine by Herman Hollerith (which was used to process the 1890 US Census). In 1911, Hollerith's company merged with several other disparate manufacturing companies (making meat slicers, commercial scales, and employee time clocks) to form the Computing-Tabulating-Recording Company (CTR). The definitive pivot that created the modern empire occurred in 1914, when the board hired Thomas J. Watson Sr. as General Manager. Watson was an effective, intensely aggressive former sales executive at the National Cash Register Company (NCR). Watson transformed CTR. He instilled a fanatic corporate culture centered entirely on customer service and a professional, immaculately dressed sales force (the famous IBM blue suit). He famously coined the ubiquitous corporate motto: 'THINK.' Recognizing that the true future of the company lay entirely in the lucrative tabulating machines (rather than meat slicers), Watson focused the company's engineering resources entirely on data processing. In 1924, reflecting his global ambition, he renamed the company International Business Machines (IBM). Under Watson's dictatorial rule, IBM dominated the punch-card era, providing the foundational bureaucratic infrastructure for Franklin D. Roosevelt's New Deal (processing millions of Social Security records). This disciplined, strong corporate culture established the foundational architecture that eventually allowed IBM to dominate the dawn of the digital computer age in the 1960s. Charles Ranlett Flint was born in 1850 in Thomaston. Education: New York University Tandon School of Engineering.
Key Milestones
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.
Source: en.wikipedia.orgRenamed 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.
Source: en.wikipedia.orgIBM 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.
Source: en.wikipedia.orgSystem/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.
Source: en.wikipedia.orgIBM 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.
Source: en.wikipedia.orgLou 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.
Source: en.wikipedia.orgDeep 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.
Source: en.wikipedia.orgPC Business Sold to Lenovo
IBM sold its personal-computer business to Lenovo in 2005.
Source: en.wikipedia.orgRed 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.
Source: newsroom.ibm.comKyndryl 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.
Source: newsroom.ibm.comWatsonx 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.
Source: ibm.comConfluent 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.
Source: newsroom.ibm.comMajor Acquisitions
Confluent
2026IBM bought Confluent, the Apache Kafka-based data streaming company, to feed real-time enterprise data into AI applications and agents running on watsonx and Red Hat.
HashiCorp
2025IBM acquired HashiCorp, maker of Terraform and Vault, to add multi-cloud infrastructure automation and secrets management alongside Red Hat Ansible and OpenShift.
Red Hat
2019IBM acquired Red Hat to gain the leading enterprise open-source software company and anchor its hybrid cloud strategy. Red Hat's OpenShift, Ansible, and RHEL products provided IBM with a credible cloud platform that could run on any infrastructure.
PricewaterhouseCoopers Consulting
2002IBM acquired PwC Consulting to expand its IT services and consulting capabilities. The deal added approximately 30,000 consultants and made IBM Global Services the world's largest technology consulting organization.
Lotus Development Corporation
1995IBM acquired Lotus to gain Lotus Notes, the leading enterprise collaboration and email platform of the era. The acquisition was part of Lou Gerstner's strategy to build IBM's software portfolio and create enterprise switching costs through messaging and workflow tools.
Apptio
2023IBM acquired Apptio to add IT financial management and FinOps capabilities to its automation portfolio. Apptio helps enterprises understand and optimize their technology spending - a critical capability as cloud costs escalate unpredictably.
The Weather Company
2016International Business Machines Corporation acquired The Weather Company in 2016.
Keep researching IBM
IBM Company History FAQ
What are the monumental milestones across IBM's 115-year history?
Milestones include founding as C-T-R (1911), creating the Social Security tabulating system (1935), launching the landmark System/360 mainframe (1964), inventing the IBM PC (1981), Deep Blue defeating Garry Kasparov (1997), acquiring Red Hat (2019), and launching watsonx and Quantum System Two (2023 to 2024).
What was the significance of the IBM System/360 mainframe announced in 1964?
Announced in April 1964 by Thomas Watson Jr., the IBM System/360 was a $5 billion technological revolution that introduced compatible family architectures, allowing software to run across different machine models without rewriting code, creating the multi-billion dollar commercial enterprise computing industry.
How did IBM engineer the Apollo 11 moon landing guidance computers in 1969?
IBM built the Saturn V Instrument Unit rocket guidance computers and real-time mission control computing systems in Houston, with over 4,000 IBM scientists and engineers supporting NASA to successfully land Apollo 11 astronauts on the Moon.
How did the launch of the IBM Personal Computer (Model 5150) in 1981 change society?
In August 1981, IBM launched the IBM PC (Model 5150) in Boca Raton, Florida, adopting an open architecture with Intel processors and Microsoft MS-DOS. The IBM PC legitimized desktop personal computing for business and sparked the worldwide PC revolution.
What foundational technologies were invented by IBM Research scientists?
IBM scientists invented the Automated Teller Machine (ATM), the Magnetic Stripe Card, the Hard Disk Drive (RAMAC in 1956), DRAM memory cells, the relational database (SQL), Fortran programming language, the Scanning Tunneling Microscope (Nobel Prize), and the UPC Barcode.
What was the historic victory of IBM Deep Blue against Garry Kasparov in 1997?
In May 1997, IBM's Deep Blue supercomputer defeated World Chess Champion Garry Kasparov in a six-game match, marking the first time a computer defeated a reigning world champion in classical chess match conditions and demonstrating the large power of parallel computing.
What was IBM Watson's historic triumph on the quiz show Jeopardy! in 2011?
In February 2011, IBM Watson competed against all-time Jeopardy! champions Ken Jennings and Brad Rutter, utilizing natural language processing and question-answering algorithms to win the televised tournament, previewing modern conversational and analytical AI.
What is IBM's long-term vision for the intersection of Hybrid Cloud, AI, and Quantum Computing?
IBM envisions an era of 'Quantum-Centric Supercomputing,' where classical high-performance computing, hybrid cloud container fabrics (OpenShift), and quantum processors work in concert with domain-specific AI models to solve humanity's most complex computational challenges in science, medicine, and sustainability.
How did IBM start?
IBM was founded in 1911 as the Computing-Tabulating-Recording Company (CTR) through the merger of several small business machine companies. It was run by the legendary Thomas J. Watson, who renamed it International Business Machines in 1924. They originally sold meat slicers, commercial scales, and punch-card tabulators before completely inventing the modern mainframe computer industry in the 1960s.
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