Private company

Research Enterprises Limited

Research Enterprises Limited (REL for short) was a short-lived Toronto-based Crown Corporation that built electronics and optical instruments during World War II. They existed only six years from late 1940 until 1946, and were active only from late 1941, but during that period they became Leaside's largest employer, producing C$220 million worth of radar systems and optical instruments ($3,843 million in 2025). After the war, the government rapidly closed the various wartime companies it had started.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1940Founded1
  • HeadquartersToronto1
REL 7x50 binoculars
Photo: Ted Brink, CC BY-SA 3.0, via Wikimedia Commons3

Research Enterprises Limited (REL for short) was a short-lived Toronto-based Crown Corporation that built electronics and optical instruments during World War II. They existed only six years from late 1940 until 1946, and were active only from late 1941, but during that period they became Leaside's largest employer, producing C$220 million worth of radar systems and optical instruments ($3,843 million in 2025). After the war, the government rapidly closed the various wartime companies it had started.2

Timeline

  1. 1940Founded Founded1

Sources

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