OPEN creates innovative software solutions to enhance the energy performance of buildings.

Formerly the Open Green Building Society and Regenerative Applications Inc., our mission is to reduce the energy and GHG footprint of buildings. OPEN´s software tools promote the market adoption of high performance products and best practices in energy management. And we believe in the Open Source and Creative Commons movements, because  working for a shared sustainable future means sharing resources and ideas. If you share this vision, we´d love to connect.


Eesmyal Santos-Brault

CEO & Co-Founder, OPEN
Principal, Recollective

Eesmyal is a social entrepreneur with a background in engineering, creativity, and sustainability. He has co-founded and continues to serve as director of six social enterprises that focus on web and mobile applications, green buildings, education, co-working, and civic engagement. Some of these include The HiVE, Design Nerds, and Open Green Building Society, which he co-founded in 2008. Eesmyal earns a living as a green building expert and CEO of Recollective, a B-Corp certified multi-disciplinary green building consulting firm he co-founded in 2006.

Dave Ramslie

Co-Founder, OPEN
VP of Sustainability, Concert Properties

With over a decade of experience in the green building industry, Dave is a leader on urban sustainability issues and policy. He is widely regarded as one of the most innovative policy makers in the Pacific Northwest, due to his track record of delivering effective programs and building lasting partnerships. As a pragmatic problem solver and a highly engaging public speaker, Dave has presented his findings to a variety of audiences.

Christian Cianfrone

Co-Founder, OPEN
Executive Director, ZEBx

Christian Cianfrone, M.A.Sc., P.Eng., LEED AP BD+C, BEMP is the executive director of the newly launched Zero Emissions Building Exchange (ZEBx). Christian has spent the last 13 years as a building energy consultant, working on hundreds of high performance projects, developing progressive energy policy, and researching and presenting emerging and innovative content across North America.

Neil Thomson

Business Manager

Neil grew up in South Africa and moved to London, UK after his undergrad. Neil is excited about the potential for technology to improve the health of our communities. Through the Open Green Building Society he’s making it easier for the real estate sector to access and share tools for increasing the resource efficiency of buildings. He’s also currently satisfying a long standing desire to start a company. Naked Snacks is a natural foods brand and online snacking service, shipping healthy and delicious food to happy customers throughout Canada.

Ryan McCuaig

Chief Technology Officer

Ryan is a registered architect and software designer practicing in Vancouver. He worked as a project architect for fifteen years, specializing in complex recreational and academic renovations. He now concentrates on coaxing computers of all kinds into helping architects, engineers and contractors make better, more sustainable, more humane buildings.

Jenna McNeil

Project Manager

Jenna handles operations for OPEN, assists with product management and supports the Three for All campaign and ZEBx Innovation Cluster. She also sits on the HiVE Board of Directors and is passionate about emerging organizational development movements.

Greg Sugiyama

Software Developer

Prior to developing web applications, Greg worked for a decade as a professional chef. He now spends his time building software solutions for the built environment.

Sarah Hay

Graphic Designer

Sarah Hay is a communication designer with a keen interest in architecture, planning and sustainability. Sarah teaches at Emily Carr University in the faculty of design and dynamic media, and at Simon Fraser University through the Certificate Program in Dialogue and Civic Engagement.


Advisory Board

The Advisory Board includes representatives from the following organizations:

  • University of British Columbia
  • City of Vancouver
  • Architectural Institute of British Columbia (AIBC)
  • Association of Professional Engineers and Geoscientists of British Columbia (APEGBC)
  • Canada Green Building Council
  • BC Hydro
  • Fortis Energy Inc.
  • Enersys Analytics