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When people ask what we do, one abbreviated response is: “We sell tape.” Though it describes a simple act, it is one with a potentially huge impact. At our core, we are activists for a sustainable built environment.

Our Team

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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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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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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Savini Nenmini

Technical Support Engineer

Savini is a Civil Engineer with a graduate degree in Environmental Engineering from Stanford University. She is passionate about making better performing buildings a norm across the world and is therefore happy to be part of the 475 team. She...

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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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Emerald Smith

Communications Manager

Emerald graduated from Columbia University with a degree in Environmental Chemistry. She is passionate about architecture and sustainability, so high-performance building materials land at the junction of her interests. After becoming LEED GA...

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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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Connie Lawless

Office Manager

Connie keeps us all honest.

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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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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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475 High Performance Building Supply

475 High Performance Building Supply