Informix

Informix is a product family within IBM's Information Management division that is centered on several relational database management system (RDBMS) and multi-model database offerings. The Informix products were originally developed by Informix Corporation, whose Informix Software subsidiary was acquired by IBM in 2001.

In April 2017, IBM delegated active development and support to HCLSoftware for 15 years (with automatic yearly renewals of the agreement), with a number of IBM employees working on Informix also moving to HCL. As part of this arrangement IBM will continue to market and sell it as IBM Informix to their customers, with HCLTech able to market and sell it as HCL Informix.

The Informix database has been used in many high transaction rate OLTP applications in the retail, finance, energy and utilities, manufacturing and transportation sectors. More recently the server has been enhanced to improve its support for data warehouse workloads. Through extensions, Informix supports data types that are not a part of the SQL standard.

On December 29, 2021, Actian (formerly Ingres Corporation) became fully owned by HCL. Actian remained a separate entity, now acting as the Data, Analytics and Insights division of HCLSoftware. The company is currently responsible for the commercialization of the HCL Informix portfolio within the group.