T-Mobile corporate responsibility webpage
T-Mobile ESG hub (includes reporting and policies)
CEF Lead Executives
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BRIGITTA WITT
Vice President, Social Impact and Sustainability, Executive Director T-Mobile Foundation
Brigitta is responsible for leading and communicating the company’s overall corporate responsibility strategy encompassing community engagement, philanthropic giving, environmental stewardship and governance. She oversees ESG strategy and reporting, program development and execution, stakeholder management, employee engagement initiatives and is the executive director of the T-Mobile Foundation. Brigitta joined T-Mobile in October of 2018. Prior to joining the company Brigitta served as Global Head of Corporate Responsibility at Hyatt Hotels Corporation where she built and led the company’s first global C.S.R function across 12 brands in 55 countries, uniting 100,000 employees behind a singular CSR vision, strategy and framework. Brigitta brings more than a decade of experience in corporate responsibility, strategy, brand and reputation management, and communications. She has spent the greater part of her professional career developing and implementing large-scale programs and initiatives at a variety of organizations, ranging from global corporations and state governments to Silicon Valley start-ups.
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ROBINETTE POSTLEWAIT
Director, ESG and Sustainability Strategy
Responsible for leading and executing T-Mobile’s ESG and sustainability strategies, helping to shape the agenda and goals that establishes T-Mobile as a transparent, trusted and values-driven company and supports larger social and environmental work.
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ANGELA NULL
Sr. ESG Strategy Manager
Angela is an experienced sustainability and ESG professional with expertise in sustainability reporting, developing ESG governance mechanisms, strategic planning, and climate risk mitigation work. Her experience spans global businesses, international nonprofits, and institutions of higher education and has included program management, consulting and advisory services, and stakeholder engagement and communications. She aims to help organizations align their business models with goals and actions that support long-term sustainability, economic growth, climate resiliency, human rights, and responsible governance.
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ROSHINI GANESH
Enterprise Sustainability Manager
Roshini is a chartered accountant turned sustainability practitioner with experience in multidisciplinary roles in consulting and now at T-Mobile. Her expertise includes driving corporate sustainability initiatives to enhance environmental stewardship, meeting global climate reporting standards, and effectively managing and communicating sustainability goals. Leveraging a robust background in sustainable business practices, regulatory compliance, and stakeholder engagement, she excels in developing and implementing strategies that mitigate environmental and social impact while aligning with business goals.
Latest Sustainability Reporting
Highlights
- Reduced Scope 1, 2 and 3 emissions by 30% since 2020.
- Maintained 100% of electricity sourced from renewable energy since achieving the goal in 2021.
- Reduced energy consumption (MWh) per petabyte (PB) of data traffic on its network by 62% since 2019, using 154 MWh per PB in 2023.
- Collected and processed 10 million customer devices to be reused, resold or recycled.
- Collected 19,000 metric tons of network e-waste.
- Diverted over 320,000 lbs of product from landfill through its Accessories Recycling Program.
- 56% of suppliers had set science-based emissions targets by the end of 2023
- 66% of suppliers completed environmental and social assessments through EcoVadis – up from 48% in 2022 and 38% in 2021.
- Received an A- on the 2023 CDP Climate Change assessment
- Received an A on the 2023 CDP Supplier Engagement rating
- Ranked #1 on USA Today’s first-ever America’s Climate Leaders 2023 list
- Ranked #1 in the telecommunications industry for environment
in JUST Capital’s 2024 Rankings of America’s Most JUST Companies

Recent News
2025
T-MOBILE — Wrote in a letter to the U.S. Federal Communications Commission (FCC) that it would end its Diversity, Equity and Inclusion (DEI) policies “not just in name, but in substance.” This includes reassigning DEI leadership, opening training programs to all employees, and eliminating targets for diverse supplier spend. The company is awaiting FCC approval for the acquisition of Metronet and much of US Cellular. (July 2025)
2024
Joined the CEF member network in December 2024!
2023
T-MOBILE — Announced its commitment to achieve net-zero across its entire value chain by 2040. This will make T-Mobile the first U.S. wireless company to set a net-zero goal for all three emissions scopes that has been validated by SBTi. The company also signed onto The Climate Pledge. (Feb 2023)
2020
The Renewable Energy Buyers Alliance updated in February 2020 its “Deal Tracker,” which highlights the largest corporate renewable energy purchasers in 2019. The top 10 included the following:
- Facebook (1.546 GW)
- Google (1.107 GW)
- AT&T (.960 GW)
- Microsoft (.624 GW)
- T-Mobile (.581 GW)
- Walmart (.541 GW)
- Amazon (.487 GW)
- Ball Corporation (.388 GW)
- McDonald’s (.380 GW)
- Honda (.320 GW)