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Private company

Defence Industries Limited

Ammunition manufacturer

Defence Industries Limited (DIL) was a subsidiary of Canadian Industries Limited (C-I-L), founded in 1939 to manufacture munitions for use in World War II. The company operated in a number of locations in Canada, in the provinces of Ontario, Quebec, and Manitoba. Its Pickering Works shell-filling plant, along with nearby housing, grew into the town of Ajax.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1939Founded1

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DIL Pickering Works - Evelyn Chartrand tightens nose plugs of 500-pound bombs
Photo: https://images.ourontario.ca/ajax/2304265/data, Public domain, via Wikimedia Commons3

Defence Industries Limited (DIL) was a subsidiary of Canadian Industries Limited (C-I-L), founded in 1939 to manufacture munitions for use in World War II. The company operated in a number of locations in Canada, in the provinces of Ontario, Quebec, and Manitoba. Its Pickering Works shell-filling plant, along with nearby housing, grew into the town of Ajax.2

Corporate structure

Defence Industries Limited is part of a group headed by Canadian Industries Limited. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. 1939Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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