LEED Trainers - Sustainable Investment Group Sustainable Investment Group
LEED Trainers

LEED Trainer portrait of Charlie Cichetti | Sustainable Investment Group (SIG)Charlie Cichetti: LEED Fellow, LEED AP BD+C, ID+C, O+M, Homes
CEO and Co-Founder of Sustainable Investment Group (SIG)

Over the course of his career Charlie has personally taught and trained over 10,000+ professionals in-person about LEED, the green building movement, and how to pass LEED exams. His green building education company GBES has over 130,000+ professionals around the world who use their study tools and CE materials to help maintain their credentials after Charlie and his team helped them pass their exams. Charlie also advocates for LEED and the green building movement to thousands of people monthly as they tune in to listen to his weekly podcast, Green Building Matters. Charlie is an expert in both the designing of green buildings and the operations of green buildings. He and his team work on large office buildings in major cities across the United States.


headshot of Kristina I. Bach | Sustainable Investment Group (SIG)Kristina I. Bach, AIA: NCARB, WELL AP, LEED AP BD+C, ID+C, O+M, ND, HOMES,
Fitwel Ambassador
Vice President of Innovation

Kristina Bach was an early adopter of ideas behind LEED, as she was only the 5th person in the world to have all five LEED AP specialties, since becoming a LEED AP in 2008. She has worked on helping over 100 projects, such as office or healthcare buildings achieve their desired LEED certification. LEED has always been a part of Kristina’s work experience, so she is extremely well versed in all aspects of LEED.


Dean D'Angelo | LEED Exam Prep TrainerDean D’Angelo: LEED Green Associate, Fitwel Ambassador
Senior Vice President for Green Building Education Services (GBES)

After graduating in 1992 with a Bachelor of Business Administration in Business Administration and Management from Indiana University of Pennsylvania, Dean D’Angelo began working as a project and business development manager for a variety of companies and commercial and residential developments. After over 20 years of working in this field, he became the Senior Vice President for Green Building Education Services (GBES), where he now works to help professionals acquire their LEED accreditation. 95% of clients currently pass their LEED exam on their first try, and it is in no short part due to the work Dean does.


Daniel Dreher | LEED Exam Prep TrainerDaniel C. Dreher: LEED AP BD+C, O+M, WELL AP, Fitwel Ambassador, LFA, EcoDistricts AP

Daniel Dreher has over 35 years of experience in the construction of a wide variety of buildings and is committed to developing the Green Building industry. His past work has focused on the use of the integrative process of design and construction as well as optimizing resource utilization to ensure the best outcomes in creating and maintaining these buildings. He also has a considerable history as an experienced and knowledgeable Green Building educator.


headshot of Libby | 125x150Libby Dunne: LEED AP BD+C, Fitwel Ambassador
Sustainability Consultant

Libby Dunne graduated from Emory University with a Bachelors of Science in Biology and a minor in Earth and Atmospheric Science. While at Emory, Libby worked as a Teaching Assistant within the Environmental Science department, as she enjoys educating students on the environment and climate change related issues. Libby works for SIG as a Sustainability Consultant. She has earned the LEED AP BD+C and Fitwel Ambassador accreditations since beginning with SIG. Her role focuses around supporting Property Managers in pursuit of green building certifications, and works to ensure that all necessary steps are taken throughout the process to achieve LEED, WELL, or Fitwel certification. Having grown up in California, Libby is passionate about protecting our natural environment and on reducing people’s impact on the environment. She helps to spread this passion through LEED training and continued work with SIG.

Related articles written by Libby:
The Release of WELL v2
Top 12 Green Building Rating Systems
COVID-19 and Buildings: How Building Certifications can Help Prevent Disease Spread in the Future


portrait of Jenn Mahon | SIGJenn Mahon: WELL AP, LFA, GGP, Fitwel Ambassador, LEED AP BD+C
Director of Sustainability – Wellness

Jenn Mahon is the Director of Sustainability – Wellness at SIG, where she oversees new and existing buildings seeking LEED, WELL, Fitwel, and Green Globes certifications as well as providing training for individuals seeking their own personal LEED credentials. Jenn graduated from the University of Minnesota with a Bachelor of Design in Architecture and a minor in Sustainability Studies and then received a Master of Studies in Sustainable Design from Boston Architectural College. Before joining SIG Jenn spent time working as an Integrated Construction Coordinator and then an Energy Analyst, where she started assisting buildings with their green building certification processes. She now has over 10 years of LEED experience specializing in new construction projects all over the US and Mexico. Jenn is an experienced and knowledgeable trainer with extensive background in LEED and the green building industry.


LEED Trainer portrait of Asa Posner aka LEED Encyclopedia | Sustainable Investment Group (SIG) Asa Posner: LEED AP BD+C, O+M
Vice President of Sales

Asa Posner leads SIG’s Minneapolis office and is SIG’s Vice President of Sales, working to encourage company growth by leading SIG’s sales team. With over 12 years of LEED consulting and sustainability experience, Asa has worked on over 200 LEED projects totaling over 50 million square feet. Asa graduated Summa Cum Laude from Emory University with a degree in Environmental Studies and is a LEED Accredited Professional with specialties in both Building Design & Construction as well as Operations & Maintenance. His project experience includes new construction, major renovations, commercial interiors and tenant build-outs, core & shell developments, k-12 schools, warehouses, data centers, convention centers, sports stadiums, and existing office buildings. He brings his extensive real-world project experience and robust green building industry knowledge to his training courses, working as a specialty exam prep trainer for LEED Green Associate, BD+C, and O+M classes. He is a passionate trainer and enjoys working with students and growing industry professionals.


Jessye feature headshot | SIGJessye Vitier: LEED Green Associate, Fitwel Ambassador
Sustainability Consultant

Jessye Vitier has a long history and passion for sustainability stemming from her upbringing on an urban farm. Since then, Jessye graduated from Georgia State University with a degree in Biology and a concentration in Ecology, interned at the Blue Heron Nature Preserve, where she would educate volunteers about the environmental issues associated with the wetlands, and eventually joined Sustainable Investment Group (SIG). Jessye is currently a Sustainability Consultant with the Consulting Department at SIG and is a LEED Green Associate and Fitwel Ambassador. In her work she helps project managers for a variety of buildings reach their LEED goals, and contributes to their certification. She mainly focuses on ensuring that all the data necessary for LEED is received, verified, and reported. Jessye has a passion for sustainability and is an excellent LEED trainer as she tries to spread her passion to others as well.


portrait of Bradley VogelBradley Vogel: LEED AP ID+C
Sustainability Consultant

Bradley Vogel graduated from the University of Minnesota in 2015, before earning his Master of Science in Sustainable Management from the University of Wisconsin in 2017, and he has since become one SIG’s sustainability consultants. He mainly works with LEED New Construction and LEED Interior Design projects, and works on a handful of LEED V4.1 EBOM projects. He has vast experience with large projects including stadiums across Minnesota, such as the US Bank Stadium, where he oversaw a zero-waste Superbowl and helped get LEED Platinum certification.

Related article written by Bradley: LEED for Sports Facilities