Meet the Sustainabilists

Sustainabilist's interdisciplinary team brings together some of the brightest not only in the discipline of process improvement and data science but in other complimentary fields, including human resources and marketing.


Jason Trager, PH.D.
Managing Partner

Jason is passionate about building technically sound businesses that reduce the rate of anthropogenic climate change. He earned a Ph.D. from UC Berkeley, where he studied the application of mass production methodologies for energy efficiency in buildings and included a designated emphasis in energy science and technology in addition to a certificate in Engineering and Business for Sustainability. Jason's areas of experience include business development, energy data science, product life cycle assessment, scientific coding, fundraising, team management, and bicycle repair. He is committed to living by sustainable values and is always willing to have a discussion about how to improve the world. 

Maria Berta, SPHR, LEED Green Assoc.
DIRECTOR, Human Resources & Recruiting

Maria has vast experience building firm structure and culture from the ground up.  She co-founded and built two energy efficient, green engineering startups into thriving, robust firms, and developed systems that led to significant industry awards including being named “Top AEC Firm to Work For” by Building Design + Construction Magazine and “Top 50 Engineering Companies” by Inc. Magazine. She also pioneered the use of the JUST Label, ILFI's reporting and transparency program. Maria brings great depth of knowledge in innovative recruiting tactics, sustainability practices and corporate operations to bear for Sustainabilists' clients.


Kit Kohler
Director, Marketing

Kit's career has run the gamut, from directing commercials for big corporate clients to strategic branding and marketing work for small start-ups. He thrives on solving communication challenges, especially those that require interpreting complicated technical information for a non-technical audience. Experienced at marketing both B2B and B2C, he enjoys working with both creative and technical minds to develop a final product that reflects the best of both. His areas of expertise include creative direction, copywriting and editing, pitch coaching, and brand and marketing strategy, and video production.


Allegra B. Saggese
Junior analyst

Allegra is a senior at UC Berkeley finishing dual degrees in Environmental Economics and Rhetoric. As a policy enthusiast and budding economist, Allegra’s interests lie in the renewable energy and sustainable agriculture industries. On campus she works with a student-run environmental consulting firm, building her passion for efficient and sustainable businesses while working with a team and digging into a variety of sustainable industries. She is currently conducting research on land use and agriculture education in Berkeley, where many of her skills in data collection, cleaning, and project management continue to grow. Although a Delaware native, Allegra enjoys biking and running in many of the East Bay’s beautiful parks.