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Our Team

Floris Keverling Buisman

CEO / Technical Director, CPHC, LEED AP

Floris has a Master’s degree from the Delft University of Technology, School of Architecture, The Netherlands. He built the Lucy House at the Rural Studio, worked at Common Ground Community, and on Mayor Bloomberg’s PlaNYC Green Code

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Ken Levenson

CFO / Sales Director, AIA, CPHD

Ken graduated from Pratt Institute in 1989 and has been a registered architect in New York State since 1993. Ken is a Certified Passive House Designer, a founding board member of New York Passive House, the National Passive House Alliance and...

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Oliver Klein

Regional Sales Consultant for New England, CPHC, LEED AP

Oliver comes to 475 following a wide-ranging career in engineering and architecture. He graduated from Dartmouth College in 1993 with a Master of Science in Materials Science and then in 2008 from Boston Architectural College with a Master of...

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Ben Leer

High Performance Daylighting Specialist

Ben has a varied background combining knowledge from construction, design, earth science, sustainability, and hospitality. He graduated from City College with a Master’s in Sustainability in the Urban Environment with a focus in...

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Lucas Johnson

Lucas Johnson Western Regional Manager

Lucas has been on the leading edge of high performance buildings since starting his career at 15 years old. He has worked as a builder, utility program manager, consultant, and venture capitalist to deliver Zero Net Energy, Passive House,...

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Craig Toohey

Director, Business Development, CPHT CPHB

Craig brings a variety of small business and sustainability expertise to 475. After graduating from McGill University’s Desautels Faculty of Management, Craig spent two years working in Montreal for a restaurant developer, then moved to...

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Phil Miceli

Director of Operations

Phil comes to 475 with a B.S in Industrial Engineering from NY Institute of Technology and an M.B.A. from Hosfstra University. After a successful career spanning engineering, consulting, banking, commercial real estate, sales and marketing...

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Johnny Druelinger

Creative Director, CPHC

Johnny began his career in sustainability in 2009 when he became involved in co-authoring the first Climate Action Plan for The Evergreen State College in Washington State. He collaborated community-scale sustainability plans in the Pacific...

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Huston Eubank

Business Development for Eastern Canada

Huston served as a Principal at Rocky Mountain Institute’s Green Development Services for 6 years, and was founding Secretary and Executive Director of the World Green Building Council. He co-created and teaches the “Integrative Design for...

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Nick Shaw

New York Product Specialist, CPHC + PHIUS Certified Builder

Nick is a PHIUS certified Consultant and Builder, familiar with a variety of high performance techniques as a self-described sustainable design nerd. Nick has been working in the green building field for 8 years primarily on integrated...

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Aaron McCormack

Technical Sales Engineer, CPHC

Aaron joined 475 from our European partners Ecological Building Systems in Ireland where he served as a Technical Sales Engineer for 4 years. He holds a Bachelor of Science Degree in Architectural Design and Technology from Cardiff...

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Matt Cull

Operations Analyst, CPHC

Matt graduated form NYU Tisch School of the Arts in 2005. With a background in Television production and education in project management, Matt brings logistical planning skills to the operations department as well as support for the sales...

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Laura Davidson

Enclosure Detail Specialist, CPHC

Laura graduated from Cornell University with a Bachelor of Architecture and a minor in Natural Resources. She is passionate about sustainability and high performance building, and is very excited to be a part of the Passive House movement.

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475 High Performance Building Supply

475 High Performance Building Supply