ESG spotlight Environmental sustainability Twilio believes in conserving natural resources and minimizing our impact on the environment. The Nominating and Corporate Governance Committee of Twilio’s board oversees management’s implementation of our environmental disclosure. Breakdown of Measuring our carbon emissions In accordance with our commitment to sustainable carbon footprint Our goal at Twilio is to limit our impact on climate business practices and our climate change change and to carry out our business activities program, we will be using 2019 data as our 60.2% Flights in a sustainable manner. As a business that is baseline for measurement moving forward. 28.4% Site Electricity conducted largely online, our carbon footprint may 9.2% Data Centres be smaller than manufacturing or businesses, but Reviewing our water management 2.3% Other we still strive to limit our impact on climate change. Twilio occupies numerous commercial spaces where our employees work. The majority of Total In 2019, our carbon footprint, the amount of these spaces are leased or sub-leased portions Carbon greenhouse gases produced by our business of larger facilities where we have lesser control Footprint activities, was 17,427.95 tCO₂e, measured in units of overall use of energy and resources, including 17,427.95 tCO₂e of carbon dioxide equivalents (CO2e).1 Twilio’s water. Nonetheless, we aim to minimize the greenhouse gas emissions result primarily from amount of water we use in our operations. airline travel, followed by site electric usage. The We conducted a review of our water usage for appendix of this report provides further details of calendar year 2019 and determined that, in the the results for Twilio’s carbon footprint calculation, locations managed solely by us, we consumed including emissions by scope and source activity. approximately 600,000 gallons of water. 1 This measurement covers the following areas from the World Resources Institute Greenhouse Gas Protocol: Scope 1 (Direct Emissions: including company car travel and refrigerants), Scope 2 (Energy Indirect, including consumption of electricity on-site and in our data centers), and Scope 3 (Other Indirect, including employee commuting), as well as the production of GHGs.