Janes

Janes is a British defence-intelligence company whose lineage runs back to 1898, when Fred T. Jane published the first edition of Jane’s Fighting Ships. For more than a century its business was the reference shelf — authoritative catalogues of the world’s warships, aircraft, weapons, and orders of battle. Where Palantir sells the software that fuses and acts on intelligence, Janes increasingly sells the validated underlying data that such systems run on. Now owned by Montagu Private Equity, which carved it out of IHS Markit in 2019, and led by chief executive Blake Bartlett, the company has relocated to Croydon, in Greater London.

Its modern platform, Janes Intara, is pitched explicitly as machine feedstock rather than a reading list. The company interconnects millions of validated data points about military capabilities, equipment, and force structure and delivers them in formats built for ingestion — geospatial databases, Parquet, relational tables, XML — describing the result as “validated data that’s AI-ready” for cross-source fusion. That positioning is most concrete in its work with the analytics firm BigBear.ai, whose system for the US Defense Intelligence Agency’s MARS programme uses data-engineering pipelines, automation, and machine learning to keep a dynamic, automated track of foreign military forces moving in and out of garrison. Janes Intara is the foundational layer underneath it.

The same data flows by interface into command-and-control software used by NATO-aligned forces, including the integration of Janes feeds into Systematic’s SitaWare in 2024. For a field increasingly defined by automated targeting and decision support, Janes occupies an upstream and easily overlooked position: the structured, human-validated record of who fields what, refined into something an algorithm can read.