Our Team

Our team has collective experience in urban planning, government and public policy; are registered architects, mechanical and environmental engineers, and interior design experts; and have multiple professional certifications to accommodate every type of project from large to small. This combination of professionals gives us a unique strength to speak to sustainability issues both strategically and practically. Zinner Consultants is a certified Small Business Enterprise (SBE) and are Proven Providers with the Green Business Certification Institute (GBCI).

Photo courtesy of ©Andri Beauchamp

Photo courtesy of ©Andri Beauchamp

John Zinner

Founder & Principal
LEED Fellow
John Zinner established Zinner Consultants in 1990 and joined the first generation of LEED APs in 2002. He brings clients a broad sustainability and environmental perspective as well as experience in policy development, project and program planning, project entitlement, and project management. He sits on the board of the Collaborative for High Performing Schools (CHPS) and is Vice-Chair of the Santa Monica Conservancy.


Glen Boldt

Senior Project Manager
LEED AP, LEED for Homes Green Rater, Certified Energy Plans Examiner, & Certified Green Building Professional


Susan Di Giulio

Senior Project Manager
LEED AP & California Registered Architect


Denise braun

Project Manager
LEEP AP, WELL AP, Fitwell Ambassador, Living Building Challenge Ambassador, TRUE Advisor, & ENVISON  Sustainability Professional


Beth brownlie

Assistant Project Manager
LEED AP, Evidence-based Design Accreditation & Certification

Our Partners


Commissioning & Energy Modeling

Christopher Zabaneh

Christopher Zabaneh

Engineering Economics, Inc.

Engineering Economics, Inc.

Marketing & Operations

katy robinson consulting

katy robinson consulting

Green Building