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Danelle Marqui Brown (Sounds like Day-nelle) is a NYC-based creative and sustainability leader with 20+ years of experience working at the intersections of business, culture, design, technology, and impact. She is also the founder of By Mnemosyne (est. 2013), an integrated consultancy rooted in the arts & sciences; Verte (est. 2005), an eco-friendly holistic design and lifestyle studio, with birth doula and green living services; and the former blog, The Green Doula (2008-2012). 

From being amongst the 1st to study sustainability for built environments at FIT, to designing one of NYC’s earliest farm-to-table restaurants (Cookshop), to producing one of the 1st green fashion & impact events—highlighted in ELLE magazine—plus writing for the blogs Eco-Chick, Inhabitots, & The Green Doula (the latter which she founded 2008-2012), Danelle has a long track-record as a pioneer in the green and sustainability movements. 


As a business woman—freelancer and employee—she has served as a creative lead and new business development expert on numerous accounts including Fortune 500 and leading brands like Anheuser-Busch InBev, Conrad Hotels, Dell Technologies, Douglas Elliman, Frette, J.Crew, Johnson & Johnson, The LEGO Group, Kimberly-Clark, The Knot Magazine, Pepperidge Farm®, Pfizer, Volkswagen, and Walmart. She’s also been accepted as a freelancer for the world’s top network of vetted climate freelancers—the Leafr platform. 

In her last corporate role, she served as Creative Director for the Integrated Communications group at W. P. Carey (WPC)— one of the largest diversified net lease REITs in North America and Europe. In the cross-functional role, she led internal and external global teams, within a lean group that served the corporation of approximately 200 employees, with a then portfolio of 1400+ properties.


As a strategic partner across WPC’s verticals, collaborating with the likes of the Executive Operating Committee, Investments, Asset Management, and Managed Program teams, she created campaigns and communication assets for projects such as the inaugural ESG, green financing framework, and sustainability reports, plus two mergers that had a combined value of $7 BILLION+.


As an entrepreneur, Danelle has curated and fostered interactive, learning, and celebratory experiences for the likes of Chicken & Egg Pictures and Onassis Cultural Center New York, while also worked to build and launch brands such as Mama Glow, May Lindstrom Skin, and Phuong Dang Perfumes.

As a historian, she has presented at the New York Academy of Medicine, the University of Macerata, and for the Geena Davis Institute on Gender in Media at Google. As a former mentor for the Global STEM Alliance, she has worked with organizations such as The Billion Oysters Project, Marvel Studios, and the Next Scholars program at the New York Academy of Sciences, where she also served as an ambassador.

Danelle is certified as a Sustainability Excellence Associate and a TRUE Advisor by Green Business Certification Inc., acknowledged as a Healthy Material Advocate by the Healthy Materials Lab at Parsons School of Design and a Business Intelligence Analyst by the Corporate Finance Institute®. In 2022, she was selected for the 1st US LinkedIn Creator Accelerator Program - Technology and Innovation cohort. 

Danelle earned a bachelor’s focusing on interior design at FIT, is a former DONA certified birth doula, and earned a master’s focusing on the history of science, technology, and medicine at Harvard. Simultaneously, she earned a graduate certificate in Religious Studies and Education, a joint program from the Harvard Divinity School and the Harvard Extension School, while working part-time and commuting between NYC and Cambridge, MA.

Visit Danelle's LinkedIn Profile for a fuller overview of Her work experience >


Master of Liberal Arts (ALM), History of Science, Technology and Medicine, Harvard Extension School, 2016

Religious Studies and Education Certificate,
5-Course Certificate Program
Harvard Divinity School and Harvard Extension School, 2015


Healthier Materials and Sustainable Buildings

4-Course Certificate Program
Parsons, The New School, 2023

Bachelor of Fine Arts, Interior Design, with a Sustainability Concentration, Fashion Institute of Technology, 2004


The New York Academy of Sciences

Since 2012


The New York Academy of Medicine

Student Member - 2014-2016
Member - 2017- Current

The Music & Health Clinic Steering Committee for The Louis Armstrong Center for Music & Medicine
Since 2017 - Current

2017 (Co-chair) Wonderful World: Friends of Music Therapy’s Gala

Geena Davis Institute on Gender in Media

Since 2017

The Harvard Alumni for Climate and the Environment
Since 2021

International Society of Sustainability Professionals

Since 2021

Organization of American Historians

Since 2022

Certifications & Certificates of Completion

Business Intelligence Analyst
Corporate Finance Institute® (CFI), 2023


Corporate Value Chain (Scope 3) Standard Online Course

GreenHouse Gas Protocol, 2023

Data Analysis in Excel

Corporate Finance Institute® (CFI), 2023


Accelerator Participant

U.S. LinkedIn Creator AcceleratorProgram - Technology & Innovation Cohort,  
LinkedIn, 2022

True Advisor

Green Business Certification, Inc. & The U.S. Green Building Council, 2022


Sustainability Excellence Associate (SEA)
Green Business Certification, Inc. & The International Society of Sustainability Professionals, 2022


Climate Boot Camp (now the Harvard Climate Action Training)

The Climate Reality Project and the Harvard Alumni for Climate and the Environment (Inaugural beta cohort), 2022


Birth Doula
DONA International
(in-training 2007-2010; Certified 2010-2013)

Teaching Experiences

Working with the New Employee Toolkit Training Sessions: Facilitator
W. P. Carey Inc., NY, NY 
July 2021 - August 2021

Religious Literacy: Traditions and Scriptures, HarvardX: HDS3221.1x
Massive Open Online Course (MOOC): Teaching Assistant

Harvard University X / edX 
Cambridge, MA
Spring 2016 and Spring 2018

1000 Girls, 1000 Futures: STEM Mentor/Educator
The New York Academy of Sciences’ Global STEM Alliance, NY, NY
January 2017 - February 2018

Billion Oysters Project - Summer Camp:
STEM Mentor/Educator

The New York Academy of Sciences’ Global STEM Alliance, NY, NY

June - July 2017

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