BETH BELOFF is President and founder of BRIDGES to Sustainability, a well-respected nonprofit organization dedicated to the practical implementation of sustainability in business and industry. She is an expert in integrating sustainable development with other business aspects and, in particular, a thought leader in measuring sustainability performance. Beloff has coauthored many publications on environmental accounting and sustainability performance assessment, and has received awards and grants from a variety of industrial, government, and nonprofit sources.

MARIANNE LINES, a Senior Associate at BRIDGES to Sustainability and Principal of Clear Lines Collaborations, works with a wide range of private and public sector clients to improve their sustainability performance. Under her leadership, the Canadian Centre for Pollution Prevention became renowned for its capacity to help organizations incorporate pollution prevention into their business planning and decision-making. Recognized for creating lasting alliances and inspiring collaborative action, Lines is the recipient of several prestigious awards for her efforts to foster environmental and business partnerships.

DICKSEN TANZIL is Research Director at BRIDGES to Sustainability. Trained as a chemical engineer, Tanzil has served as technical lead on various research and advisory projects involving life-cycle assessment, total cost assessment, and sustainability indicators and metrics.
Beloff and Tanzil have recently joined Golder Associates, Inc., to develop its sustainability practices in North America.