Logical Information Machines, Inc. (LIM) is a software company based in Chicago, Illinois, United States.

It markets Historis, a time series database and the Market Information Machine (MIM), a database that is built around Historis, and includes data and a near-English query language.

[1] The Market Information Machine (MIM) was invented in 1988 by Tony Kolton,[2] President and CEO of LIM, Danette Chimenti, LIM Director of Strategic Research and Ruben Gamboa, LIM Senior Technical Consultant.

Historis, unlike a relational database, is optimized and designed to handle the large storage issues and fast data retrieval speeds required by time-series data (real-time, intraday, daily, weekly, monthly).

In December 2009, Morningstar, Inc. announced that it had agreed to buy LIM for $50.5 million.