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Sierra Systems

Canadian IT consultancy offering consulting, implementation and managed services as part of NTT DATA

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About Sierra Systems

Sierra Systems is a Canadian technology services firm and part of NTT DATA. It helps organisations plan, build and run IT systems that take account of people and process as well as technology.

What Sierra Systems offers

  • Consulting — advice on modernising business and IT.
  • Implementation — delivery of technology projects.
  • Managed services — ongoing running and support of systems after delivery.

Who it works with

The firm serves organisations across Canada through a local presence, aiming for long-term relationships with its clients.

Key facts

  • Parent: NTT DATA.
  • Team: about 700 professionals.
  • Offices: 9 across Canada.
  • Track record: more than 50 years of experience, according to the earlier profile.

Profile written by TrustList from the business's own published information, Oct 2026.

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