About Our Company

Tansley Associates Environmental Sciences Inc.'s (TAES) mission is to maintain its position as a leader in developing and implementing sustainable environmental solutions for the energy industry.

Tansley Associates operates out of:

  • Calgary, AB
  • Edmonton, AB
  • Grande Prairie, AB
  • Medicine Hat, AB
  • Valleyview, AB
  • Whitecourt, AB
  • Bonnyville AB
  • Cold Lake AB
  • Fort McMurray, AB
  • Lloydminster, SK
  • Kindersley, SK
  • Fort St. John, BC
  • Fort Nelson, BC
  • Peace River AB
  • Spirit River AB
  • Red Deer AB

These locations allow us to respond quickly to project requirements and provide backup equipment or service personnel when required.

Based out of Calgary, Alberta, Canada, TAES provides project management, field supervision and professional office support to the energy industry.

TAES owns and manages Wabasca Vacuum Services Ltd. and amalgamated with S.T.A.D. Enterprises (2000) Ltd., and T-Line Products Ltd. in 2009.

S.T.A.D. Enterprises (2000) Ltd. has been an industry leader in environmental oilfield services for over 35 years. In 2006, S.T.A.D. merged with TAES.

Wabasca Vacuum Services Ltd. maintains an inventory of environmental equipment to service the Western Canadian oil and gas industry. Please see the Wabasca section for details and descriptions of the equipment available.

TAES has over 35 years of experience in odorizing liquid propane and natural gas. For more information please see the Odorant section.


We are always looking for the right people to fulfill our needs as a growing company. Review our current opportunities and let us know if you are the right person for the Tansley team.

Current Opportunities

Ongoing Opportunities

Not seeing a title that suits you? Send us your resume and we will try and find the right fit for you. Careers@tansleyaes.com

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