Patrick in PS Gear

About Patrick Prézeau Stephenson: A Legacy of Excellence

Patrick Prézeau Stephenson is a scientist, author, and mentor with over 15 years of experience in regulatory science.

I am passionate about creating impactful strategies that drive compliance, innovation, and sustainability. My career has spanned diverse roles, from serving as a Senior Scientific Evaluator for Health Canada’s Pest Management Regulatory Agency (PMRA) to providing expert financial guidance as a Financial Security Advisor with leading Canadian firms.

Patrick Prézeau Stephenson is a seasoned professional with over 25 years of experience combining scientific expertise and regulatory skills. His career has focused on developing and overseeing comprehensive research plans and regulatory evaluations. During his tenure at the PMRA, he distinguished himself as a Senior Scientific Evaluator, leading critical regulatory reviews and introducing innovative decision-making approaches. He has acquired key knowledge and skills with all types of pesticides including Herbicides, Fungicides, Insecticides, Antimicrobials, biopesticides, and IPM. In 2009 he was elected to the scientist Union, The Professional Institute of the Public Service SP Group as an Executive where he served as Secretary representing over 2600 scientists in Ottawa.

Since 2014, he has been a Senior Regulatory Consultant at an Ottawa-based consulting firm, successfully navigating the complex regulations of the crop protection industry. Patrick has led key projects, including the NAFTA PCT Project and the development of the EcoPheno software. His international leadership and strategic thinking have consistently delivered impactful results.

Honored with several academic and business awards, his dedication to excellence is also evident in his community leadership roles.

As a published author of three books and recipient of numerous awards, I bring a proven track record of excellence and dedication to every project. Beyond my professional pursuits, I am honored to give back to my community as the Vice President of FASLC, and member of the Foundation STOinternational where I actively mentor, fundraise, and sponsor initiatives that inspire future generations.

About PSCONSULT

Pat Stephenson's PSCONSULT is a trusted leader in pesticide regulatory consulting services in Canada, renowned for our unparalleled expertise and dedication to excellence. We empower businesses of all sizes—from ambitious startups to global enterprises—to confidently navigate the complexities of pesticide regulations. By offering tailored solutions and strategic guidance, we ensure our clients meet compliance requirements while maintaining their competitive edge in a highly regulated industry.

Why Choose Us

At PSCONSULT, we take pride in our hands-on approach to regulatory consulting. We work closely with clients to understand their unique challenges and objectives, delivering personalized strategies that align with their goals. From regulatory submissions to compliance, we cover every aspect of the approval process, ensuring a smooth and efficient path to market.

Our Mission

We are driven by a steadfast commitment to fostering innovation, safety, and sustainability within the pesticide industry. By partnering with PSCONSULT, you gain more than just a consultant—you gain a trusted advisor dedicated to your success. Let us help you turn regulatory challenges into opportunities and secure a future built on compliance and growth.

Experience the PSCONSULT difference—where expertise meets personalized service.