Tetra Tech

Tetra Tech is one of the largest engineering firms in Canada providing consulting, engineering, program management, construction management, and technical services for over 50 years. With over 4,300 staff in Canada and 16,000 employees worldwide, Tetra Tech provides support to the nuclear power industry in Canada and the United States. We support all aspects of the nuclear plant life cycle from licensing, design engineering and construction management to operations support, waste management and decommissioning. Tetra Tech’s Canadian roots are traced to the well-respected firms: BPR-Energy Inc., Tetra Tech WEI Inc. (formerly Wardrop Engineering), EBA Engineering Consultants, Ltd. (EBA), and Fransen Engineering, Ltd. (Fransen).

Tetra Tech is a diverse company, including staff with expertise in science, research, engineering, construction, and information technology. Our strength is in collectively providing integrated services delivering the best solutions to meet our clients’ needs. Tetra Tech offers clear solutions made possible with sound science, understanding, innovation, and industry-leading and targeted approaches. The energy sector, specifically power generation and transmission, are one of five core business areas within the corporation.

Company Information

Tetra Tech 1055 Squires Beach Road
Pickering Ontario
L1W 4A6 Canada

Products & Services

  • Engineering Services
  • Business Development and Consulting
  • Equipment Qualification and Testing (Seismic, EQ, Commercial Grade Dedication etc.)

Contact Information

Ryan DeCairos Manager of Business Development
(416) 992-8607
Lisa Vlietstra Business Development & Marketing
(289) 255-0667

Contact us for more information. Drop us a line!

General & Contact
Fax: (905) 839-7085
Our Address
Organization of Canadian Nuclear Industries
1550 Kingston Road, Suite 219
Pickering, Ontario L1V 1C3
Membership Enquiries & Support
Fax: (905) 839-7085


We would like to caution our members not to open suspicious email attachments from OCNI unless the full signature is present. If you are unsure, please forward any emails as attachments to the OCNI office to confirm.

More Information