IMT’s efforts to catalyze wide-spread and sustained demand for high-performance buildings is driven by an array of subject matter experts in real estate, building performance policy and programs, finance, codes, and more. Our staff represents broad and deep experience in every aspect of building energy efficiency. Click below on individual profiles to learn more.

Lotte Schlegel

Executive Director | (202)525-2883 x324
As IMT’s Executive Director, Lotte is IMT’s primary spokesperson and guides IMT’s growth with an eye on both big-picture vision and tactical execution.

Alex Dews

Managing Director of Programs
As IMT's Managing Direct of Programs, Alex oversees all programmatic work across policy, business engagement, and strategy & analysis.

Dr. Ashawnda Fleming

Managing Director, Advancement
Dr. Ashawnda Fleming is the Managing Director of Advancement at IMT. 

Betsy Law

Managing Director, Operations | (202)525-2883 x329
Betsy leads all internal operations and oversees the strategic growth of IMT.

Cliff Majersik

Senior Advisor, Policy and Programs | (202)525-2883 x303
A respected industry leader, Cliff is a pioneer of concepts in real estate and building performance policy that optimize energy use and help transition to a low-carbon economy.

Mark Chao

Senior Advisor, Founding Staff Member | (607)257-3348
Mark is the founding staff member of IMT. Having served continuously in various capacities since 1996, he now works as senior advisor, providing technical and strategic support to IMT’s senior management and program staff.

David Cohan

Senior Advisor | (202)525-2883 x311
David is IMT's Senior Advisor and leads the VHE HVAC pilot program. 

Lindsey Falasca

Director for Net Zero Federal Buildings at the White House Council on Environmental Quality | (202)525-2883 x318
As of August 2022, she’s serving in a detail position as the Director for Net Zero Federal Buildings at the White House Council on Environmental Quality.

Theresa Backhus

Director, Building Innovation Hub
Theresa Backhus is the Director of the Building Innovation Hub, ensuring that the Hub’s mission and strategic vision are executed.

Amy Boyce

Director, Technical Strategy and Federal Engagement
Amy develops and deploys local, state, and national level strategies to achieve broad-scale transformation through codes and building technology.

Julia Eagles

Associate Director of Utility & Regulatory Strategy | (612)747-9821
As IMT's Associate Director of Utility and Regulatory Strategy, Julia is responsible for developing and deploying local, state, and national level strategies to achieve broad-scale transformation.

Jessica Miller

Senior Director, Policy Strategy and Engagement | (202)525-2883 x320
Jessica creates connections between the public and private sectors and works with diverse stakeholders to reach their respective climate and business goals.

Precious Rideout

Director, Community Engagement
Precious Rideout is IMT's Director of Community Engagement, where she serves as the primary representative to community organizations ensuring that inclusive community engagement solutions are centered on equity and people.

Mike Towler

Director, Finance and Operations | (202)525-2883 x313
As IMT's Director of Finance and Operations, Mike helps manage and support project- and organization-wide financial planning and strategy.

Hae-Young Kang

Senior Manager, Accounting | (202)525-2883 x307
Hae-Young oversees IMT’s accounting and ensures nonprofit audit and accounting compliance.

David Gillick

Manager, Business Engagement
David is IMT’s Manager of Business Engagement, focused on providing data and policy analysis to drive market adoption of high-performing building standards and social equity priorities.

Yolanda Bonner

Associate Director of Building Performance, Building Innovation Hub
Yolanda is the Building Innovation Hub's Associate Director of Building Performance.

Tara Brown

Associate Director, Program Service and Delivery | (612)524-8558
Tara Brown is IMT's Associate Director, Program Service and Delivery.

James Burton

Senior Associate, Policy
James is IMT’s Senior Policy Associate and supports IMT's mission to promote the development and adoption of equitable building performance policies by state and local governments.

Caitlin M. Caplinger

Senior Communications Associate, Storytelling
Caitlin M Caplinger (they/them) is IMT's Senior Communications Associate, Storytelling, and joined IMT in April 2022.

Giulianna Di Lauro

Associate Director, Community Engagement
Giulianna is IMT’s Associate Director or Community Engagement. In her role, she serves as a primary representative to community organizations and city staff ensuring that inclusive community engagement solutions are centered on equity and accessibility.

Marshall Duer-Balkind

Director of Policy Programs
Marshall Duer-Balkind is the Director of Policy Programs at IMT, where he works to develop and implement policies for driving high-performance buildings, grounded in community priorities and technical rigor.

Alexes Juarez

Senior Associate, Community Engagement
Alexes Holguin Juarez is IMT’s Senior Associate of Community Engagement and joined IMT in March 2023.

Sarah Beth Kaye

Senior Manager, Foundation Giving
Sarah Beth organizes IMT’s end-to-end grants management and donor cultivation processes.

Cherylyn Kelley

Manager, Building Energy Codes and Policy
Cherylyn is IMT’s Manager of Building Energy Codes and Policy and supports policy development and implementation.

Alexandra Laney

Associate Director, Communications | (530)645-2539
Alexandra is the primary contact for media relations and manages IMT's public presence, including digital strategy and communication campaigns.

Diana Lee

Associate Director of Business Engagement
Diana Lee is IMT’s Associate Director of Business Engagement. She leads IMT’s Green Lease Leaders program.

Rita Perez

Digital Content Manager | (202)525-2883 x331
Rita is IMT’s Digital Content Manager and plays a vital role in shaping IMT’s social media strategies and multi-media production of outreach plans across IMT programs.

Rajiv Ravulapati

Associate Director, Government Engagement | (630)390-6221
Rajiv Ravulapati is IMT’s Associate Director of Government Engagement, where he serves to actively build and maintain relationships with IMT’s public sector clients in order to plan, propose, and implement equitable decarbonization policies that center community priorities.

Louise Sharrow

Manager of Policy Design and Implementation
Louise Sharrow is IMT’s Manager of Policy Design and Implementation. She works to design and implement building performance policies that achieve climate and equity goals.

Marla Thalheimer

Senior Director, Business Engagement
As IMT’s Senior Director of Business Engagement, Marla oversees the evolution and execution of programmatic strategy and services that drive high-performance building adoption across the real estate industry.

Mary Thomas

Associate Director, Building Innovation Hub
Mary Thomas is Associate Director for the Building Innovation Hub, helping the local building community design, build, retrofit, and operate high-performing buildings in and around Washington, DC.

Ella Wetlesen

Manager, Business Engagement
Ella Wetlesen is IMT’s Manager of Business Engagement, supporting projects across the organization.