About Us
Leading the way in building sustainability consulting with expertise, innovation, and a commitment to a greener future.
Our Story
TSI Environmental began with a vision to transform the built environment through sustainable practices. What started as a small team of passionate environmental consultants has grown into a leading sustainability consulting firm with a national presence and international impact.
Our journey has been driven by a steadfast commitment to environmental stewardship, innovation, and client success. As sustainability regulations and certifications have evolved, we've stayed at the forefront, continuously expanding our expertise to provide comprehensive solutions for the complex challenges facing the building industry.
Today, TSI Environmental stands as a trusted partner for organizations seeking to enhance building performance, reduce environmental impact, and create healthier spaces for occupants.
Mission, Vision & Values
Our guiding principles shape everything we do, from how we interact with clients to how we approach each sustainability challenge.
Our Mission
To accelerate the transition to sustainable buildings by providing expert guidance, innovative solutions, and measurable results that benefit our clients, communities, and the planet.
Our Vision
A world where all buildings are designed, constructed, and operated to maximize environmental performance, human health, and economic value, contributing to a sustainable and resilient future.
Our Values
- •Environmental Stewardship: We prioritize solutions that minimize environmental impact and conserve resources.
- •Innovation: We embrace new technologies and approaches to advance sustainable building practices.
- •Integrity: We conduct business with honesty, transparency, and ethical standards.
- •Excellence: We strive for the highest quality in our work and continuous improvement in our practices.
- •Collaboration: We work closely with clients, partners, and communities to achieve shared sustainability goals.
Our Leadership
Meet the experienced professionals who guide our company's vision and success.
Thomas Cornellier
Chief Financial Officer
Corrie Ashworth
Managing Director
Will Pounds
Director of Business Development
TSI Environmental exists to be the leading independent and compassionate authority on environmental solutions for the commercial real estate community.