Floris Keverling Buisman

Chief Executive Officer

Floris has wide ranging expertise in building technology, materials and envelopes. He’s served on NYC Building Code Committees, has certified, consulted on and built several Passive House projects in New York and Vermont, is a LEED AP, a Registered Architect in the Netherlands, and an adjunct professor at The City College of New York. Prior to co-founding 475 Floris spear-headed green building initiatives at Common Ground Community in their NYC supportive affordable housing developments. He also designed and built the Lucy House at Samuel Mockabee's Rural Studio in Alabama. Floris has a dual Master’s degree in Architecture + Real Estate Development from the Delft University of Technology. His kids enjoys riding on the cargo rack of his 1946 dutch grandma bike for drops off at school and his commute to work - while advocating street safety. Join them on bike during Critical Mass on last Friday's of the month at 7pm on Union square.

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Johnny Rezvani

Director of Communications

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 on regional sustainability plans in local government in the Pacific Northwest before catching the Passive House bug. He holds a degree in Sustainability Planning from The Evergreen State College and a Masters of Science degree from The City College of New York’s Sustainability in the Urban Environment program. Johnny now lives in Boulder, Colorado, where he enjoys a car-free lifestyle in one of greatest bicycle cities in the country. Johnny is a life-long music lover, and spent a few years of his twenties as a full-time touring musician, currently writing and recording - you’ll currently find his work online under the moniker JD Reverie.

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Matt Cull

Director of Finance

Matt graduated from NYU Tisch School of the Arts in 2005. He then worked as a production accountant at ITV Studios and Vice Media. At Vice Media, Matt became the head of accounting. He is also a critical home repair construction volunteer for Habitat for Humanity NYC and is a Certified Passive House Consultant. Matt is also a licensed small unmanned aircraft aerial system pilot and has flown over many 475 projects as well as shoots, edits and produces 475 videos. Matt is an Ironman triathlete and a beer nerd.

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Philip 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 Hofstra University. After a successful career spanning engineering, consulting, banking, commercial real estate, sales, and marketing (online and offline), Phil decided to follow his passion for sustainability. He earned a professional certificate in Sustainable Design Construction and Development from New York University and a LEED GA accreditation. He is a certified Passive House Consultant and a Certified Passive House Tradesperson. Phil loves to scuba dive with sharks, manta rays and other large animals - diving all over the world from Fiji, to the Caribbean, and Greece.

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Ken Levenson


Ken has been a registered architect in New York State since 1993. He has a Bachelor of Architecture degree from Pratt Institute. Ken is a Certified Passive House Designer, a founding board member of New York Passive House, the National Passive House Alliance and the North American Passive House Network. Ken has served on advisory panels for Urban Green’s 90 by 50 advanced policy report and the Framework Guidelines for Energy Efficiency Standards in Buildings of the United Nations Economic Commission for Europe. When Ken isn’t thinking about Passive House or hanging out with his wife and young daughters, he can usually be found walking their 180 lb Newfoundland dog, Romeo, in Prospect Park.

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Erika Mayer

Product Consultant for Eastern Canada
(ON, QC, Maritime Provinces)

Erika graduated with a Bachelor's degree in Architecture from Carleton University in Ottawa, ON. For over 15 years she has worked as a building industry liaison with a focus on sustainable buildings. Erika was one of the first employees of the Canada Green Building Council and helped bring LEED to Canada. She is a LEED AP BD+C, certified Project Manager (PMP), and a natural solution provider who will be able connect those designing, building, and constructing high-performance buildings with the best solutions to meet their project goals. Erika competed in short track speed skating and used to be a hockey goalie.

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Shaun St-Amour

Product Consultant for Western Canada
(AB, BC, MB, NT, NU, SK, YK)

With a degree in Wood Products Processing, Shaun graduated from The University of British Columbia. He is a certified Passive House Tradesperson and obtained a Building Construction Technology Associate Certificate from BCIT while working with Viceroy Homes and BOSA Construction. You may have seen him in social media recently traveling around with the Ice Box Challenge where he helped educate the public on the benefits of Passive house building in Vancouver, Seattle, Philadelphia and New York. Education is another passion for Shaun as he now is involved with teaching the Passive House Tradesperson course at BCIT and is working towards building their high performance building lab. If Shaun isn’t talking about passive houses, he’s playing Lego with his two daughters or working on his hubby-do list for his wife.

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Akshayaa Kariyakkar

Daylighting Product Consultant

Akshayaa graduated with a degree in architecture from SRM University before acquiring her Master of Science in Sustainability in the Urban Environment at City College. There she took interdisciplinary courses integrating engineering, architecture, and economics, and worked on a year-long research project to bridge the gap between food insecurity and food waste in NYC. Her experiences have led her to believe in a multi-faceted and holistic approach towards Sustainability. Since graduating, Akshayaa has become a member of the Daylight Team at 475 where she focuses on the company's window and door products. In her spare time, she enjoys being creative through literary and artistic means.

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Jeremy Latriano

Daylighting Product Consultant

Jeremy has a Bachelor of Science in Energy Business and Finance from Pennsylvania State University and will hold a Master of Science, Sustainability in the Urban Environment from the City College of New York. He has been an intern at Urban Green in New York City, a superintendent at Coastal Enterprises on Long Island and a benefits coordinator at PSC-CUNY Welfare Fund. On his 18th birthday, Jeremy jumped out of a plane with his mother.

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Laura Martin

Accounting Associate

Laura started in the accounting industry almost two decades ago working for an accounting firm in Westchester, NY focused in the construction and architecture field. She holds a Masters Degree in Accounting obtained from Wilmington University, College of Business and a Bachelor Degree in Economics with a Concentration in Forensic Financial Analysis, obtained from the City University of New York. Having been a proud resident of NYC since 1990, for her it is important to give back to her adopted home. Laura does volunteer work for New York Care and fundraising for Bike MS New York. In her free time Laura loves to travel and care for her dog, Jack.

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Aaron McCormack

Technical Manager

Aaron joined 475 in 2017 after working for 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 Metropolitan University. Aaron is a Certified Passive House Consultant. He stays connected to his homeland competing in regular hurling matches in Gaelic Park, in the Bronx.

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Savini Nenmini

Technical Support Engineer

Savini is a Civil Engineer with a graduate degree in Environmental Engineering from Stanford University, and a civil engineering bachelor’s degree from the Malaviya National Institute of Technology Jaipur. Before joining 475 Savini studied truck-trailer fleet energy efficiency in New Jersey at East West Hauling, and researched environmental impacts and risk assessments at the National Environmental Engineering Research Institute in Nagpur, India. On her nights and weekends Savini supports a Buddhist organization dedicated to upholding the dignity and equality of all life.

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Chris Quincey

MidWest Account Manager

Chris has a bachelor's degree in Entrepreneurship and Small Business Management from Quinnipiac University. While there he discovered his passion for the sustainability market through international business experience. This led him to attain a graduate degree in Bioeconomy from the University of Hohenheim in Germany, where he furthered his involvement in business by working with the Entrepreneurship department. Having worked in adjacent markets, such as landscaping, painting, residential solar, and below-grade waterproofing, moving on to join the 475 team to create a more sustainable construction market was a no brainer. Outside of work hours, you can find him traveling, gardening, hiking, or fishing.

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