ESG Team


Virginia (Jinny) Whittaker, President

Alexandra (Ali) Kirsten, Marketing & Office Manager

Ali started with ESG in Fall 2014. She holds a Master of Business Administration with a focus in Marketing from The College of Saint Rose in Albany, NY. She has previous experience working with B2B and B2C companies and has a particular interest in small companies. Her interest in marketing began with a love of stories and an interest of knowing the story behind a company. When she is not working, she enjoys spending time with her family and her dog Meeko, reading full books in one sitting, and being outside.

Sven Milder, Field Technician

Sven joined ESG in the Fall of 2016. He has a degree in Environmental Studies from University of North Carolina - Greensboro. He is interested in hydrology. Though his main hobbies include motors and cars, he also loves to be outside whether backpacking or hunting. 




Lillie Reiter, Environmental Investigator

Lillie graduated from Guilford College with a B.S. in Biology and started working with ESG in July 2015. She is a Council-certified Residential Indoor Environmentalists through the ACAC. With a scientific background base, she has worked on a number of collaborative interdisciplinary projects and finds research fulfilling. When not working she is reading, swimming, or hanging out with friends downtown.


Xuemei Song, Accounting Manager

Xuemei joined the company in Fall 2014. She is a graduate of Three Gorges University in Yichang, Hubei Province, China. She is adept with numbers and enjoy organization and problem solving. In her leisure time, Xuemei enjoys relaxing with her husband and son, gardening, reading, cooking, and traveling.



Andrew Stout, Field Technician

Andrew joined ESG in January 2017 after graduation with a Bachelor's of Arts in Environmental Studies from the University of North Carolina at Greensboro. He has been in the Marine Corps Reserves since June 2013. He is interested in energy efficiency and sustainable building. In his spare time, he enjoys taking care of his coral reef aquarium, playing disc golf, and running. 


Duwane Thomas, RESNET Rating Field Inspector

Duwane joined ESG in March of 2015. He was born and raised in the small country of St. Vincent & the Grenadines located in the Southern Caribbean. He earned a Bachelors Degree in Civil Engineering from Morgan State University in Baltimore, Maryland. In his spare time, Duwane enjoys playing tennis, swimming, going to the beach, and relaxing with friends and family.


Dan Whittaker, Environmental Investigator

Dan joined ESG in 2008 as an environmental investigator. He is a board-certified Microbial Investigator (CMI) and regularly conducts air quality and lead paint assessments. Dan has a strong interest in unusual weather conditions and photojournalism. In his spare time, he enjoys spending time outdoors, going on storm-chasing adventures and taking photos, many of which have appeared in major publications.