Developing technology that betters our environment

A Word From Our President

Meet Our Leadership Team

Meet the experienced team leading the way in our ongoing growth and operations.

Audrey Mascarenhas, P.Eng., FCAE President & Chief Executive Officer

Audrey Mascarenhas has worked in energy for more than 35 years with Gulf Canada Resources Ltd. and Questor Technology Inc. She holds a Bachelor’s degree in Chemical Engineering from the University of Toronto and a Master’s Degree in Petroleum Engineering from the University of Calgary. She is a fellow of the Canadian Academy of Engineers. Audrey served as a distinguished lecturer with the Society of Petroleum Engineers in 2010/2011. She is a member of the Schulich Industry Engineering Advisory Council and currently chairs the Canadian federal government clean technology strategy table. Audrey was the recipient of the Ernst & Young Entrepreneur of the Year 2011 Prairies Award for Cleantech and Environmental Services and received a national citation for Values-Based Innovation. She was also chosen by Business in Calgary as a 2014 Leaders of Tomorrow, is a 2014 Board Diversity 50 cohort and one of Canada’s 2017 Clean50. Audrey is a fellow of the Energy Futures Lab and co-chairs the Governor General’s Innovation Awards assessment committee.

Dan Zivkusic, CPA, CMA, Chief Financial Officer & Corporate Secretary

Mr. Zivkusic is a multi-disciplined professional with more than 20 years of oil and gas industry experience. Most recently he served as CFO for Reform Energy Services Corp., a private international company specializing in under balanced drilling, managed pressure drilling and production testing/flowback business.

Dan obtained his Certified Management Accountant designation in 1991 and is an active member of the Chartered Professional Accountants of Alberta.

Darko Ulakovic, Chief Operating Officer

Darko brings over 20 years of experience in scaling manufacturing capabilities, streamlining operations, and increasing global and regional market share. Before joining Questor, Mr. Ulakovic was most recently Executive Vice President of Manufacturing and Supply Chain of CoolIT Systems. Prior to CoolIT, Mr. Ulakovic was President of AVL Group of companies, charged with overseeing the company’s strategic development and solution implementation. Before AVL, Ulakovic had several executive roles at Tesco Corporation leading the Product Business line, expanding global market share and growing their manufacturing capabilities.

Environmental, Social, Governance

Clean technology – good for the environment and our communities

We are a cleantech company in all senses. We always work to create technology that betters our environment and makes the air we breathe cleaner for our communities.

Health and safety is of upmost importance

The health and safety of our employees and customers are paramount to Questor. We show this through our ISO certification but also through our internal health and safety policies.

Lower emissions to meet and exceed regulations

We enable our customers to lower toxic emissions and meet or exceed environmental regulations in their industry. We always strive for the best, not the minimum, standard.

Independent board of directors

Our board of directors is independent and composed of industry leaders to ensure that we continue to maintain the highest finance and accounting practices and standards.


Health + Safety

Questor is committed to conducting business in a manner that delivers leading environmental, health, and safety performance. We are invested in corporate citizenship, social responsibility, and sustainability.

We provide products and services that are safe and environmentally sound throughout their life cycles and conduct our operations in an environmentally responsible manner.

The health and safety of our employees come first— always. Our work environments and policies are designed to meet or exceed any legal requirement, prevent injury and illness, and prioritize employee well-being. We require our suppliers to meet these standards as well

Workplace health and safety is integrated into our business planning, decision-making, performance tracking, and governance processes to ensure we achieve the highest standard.

Questor employees are committed to understanding and supporting our environmental, health, and safety policies and actively participate in programs to ensure our goals are achieved.

The health and safety of our community at large are as important to us as the health and safety of our immediate team. We regularly work with employees, suppliers, partners, customers, and governmental, non-governmental, and community organizations to protect and enhance health, safety, and the environment.

Passionate about clean technology?

Explore our job openings:

All positions are currently filled. Please check back regularly as new positions may open up without prior notice.