
IBM has undergone a large number of mergers and acquisitions during a corporate history lasting over a century; the company has also produced a number of spinoffs during that time.

Aspera is a data transport and streaming technology company that provides high speed data transfer services. Aspera belongs to the hybrid cloud business unit of IBM.

BigFix, Inc., was an American company focusing on managing networked desktop, mobile, and server computers. From its origins as a personal computer self-help application, the company’s products expanded to on-demand endpoint management services that include asset inventory/discovery, security vulnerability detection and remediation, software distribution, information technology compliance reporting, patch management, software license management, security policy enforcement, and endpoint device power consumption management. Founded in 1997, BigFix, Inc. was headquartered in Emeryville, California.

Blekko, trademarked as blekko (lowercase), was a company that provided a web search engine with the stated goal of providing better search results than those offered by Google Search, with results gathered from a set of 3 billion trusted webpages and excluding such sites as content farms. The company's site, launched to the public on November 1, 2010, used slashtags to provide results for common searches. Blekko also offered a downloadable search bar. It was acquired by IBM in March 2015, and the service was discontinued.

i2 Limited was the UK-based arm of software company i2 Group which produced visual intelligence and investigative analysis software for military intelligence, law enforcement and commercial agencies. After a number of acquisitions, in 2011 it became part of IBM.

IBM Cloud Object Storage is a service offered by IBM for storing and accessing unstructured data. The object storage service can be deployed on-premise, as part of IBM Cloud Platform offerings, or in hybrid form. The offering can store any type of object which allows for uses like data archiving and backup, web and mobile applications, and as scalable, persistent storage for analytics. Interaction with Cloud Object Storage is based on Rest APIs.

ISM is an information technology service company based in Regina, Saskatchewan. The main company office is currently located in the ISM Building which was built by the University of Regina in 1991 to suit ISM Canada's needs. The company is a wholly owned subsidiary of Kyndryl Canada Limited, that serves both public and private sector organizations.

Kenexa, an IBM Company, provides employment and retention services. This includes recruitment process outsourcing onboarding tools, employee assessment, abilities assessment for employment candidates ; and Kenexa Interview Builder, a structured interview archive with example questions.

Lotus Software was an American software company based in Massachusetts; it was "offloaded" to India's HCL Technologies in 2018.

Outblaze is a technology company that develops and provides digital media products and services including smartphone games and other apps, social media applications, computer and video games, online transaction systems, and web communication software. Although it started out as an application service provider of hosted Web applications, the company gradually transitioned to the video game industry. In 2009 Outblaze sold its messaging business unit in order to focus primarily on digital entertainment.

Platform Computing was a privately held software company primarily known for its job scheduling product, Load Sharing Facility (LSF). It was founded in 1992 in Toronto, Ontario, Canada and headquartered in Markham, Ontario with 11 branch offices across the United States, Europe and Asia.

Red Hat, Inc. is an American IBM subsidiary software company that provides open source software products to enterprises. Founded in 1993, Red Hat has its corporate headquarters in Raleigh, North Carolina, with other offices worldwide.

Sequent Computer Systems was a computer company that designed and manufactured multiprocessing computer systems. They were among the pioneers in high-performance symmetric multiprocessing (SMP) open systems, innovating in both hardware and software.

Truven Health Analytics is an IBM Watson Health Company that provides healthcare data and analytics services. It provides information, analytic tools, benchmarks, research, and services to the healthcare industry, including hospitals, government agencies, employers, health plans, clinicians, pharmaceutical, biotech and medical device companies. Truven is a portmanteau of the words "trusted" and "proven".

Turbonomic is an enterprise software company headquartered in Boston, MA. The company's product simulates supply and demand forces in order to efficiently allocate resources such as computing, database, memory and storage. It was updated in 2017 for use with cloud computing platforms.

The Weather Company is a weather forecasting and information technology company that owns and operates weather.com and Weather Underground. The Weather Company has been a subsidiary of the Watson & Cloud Platform business unit of IBM since 2016.