Parexel

Parexel, a US-based research and development services company, reported total carbon emissions of approximately 337,802,000 kg CO2e in 2025. This includes about 2,334,000 kg CO2e from Scope 1 emissions, 4,535,000 kg CO2e from Scope 2 (location-based), and 330,932,000 kg CO2e from Scope 3 emissions. Key Scope 3 contributors in 2025 were purchased goods and services (approximately 280,593,000 kg CO2e), upstream transportation and distribution (around 21,430,000 kg CO2e), and business travel (approximately 22,046,000 kg CO2e).

Looking back, Parexel's total emissions were approximately 323,408,000 kg CO2e in 2024, with Scope 1 at about 2,705,000 kg CO2e, Scope 2 (location-based) at around 5,930,000 kg CO2e, and Scope 3 at roughly 314,773,000 kg CO2e. In 2023, total emissions were about 298,365,000 kg CO2e, comprising around 2,898,000 kg CO2e from Scope 1, approximately 6,969,000 kg CO2e from Scope 2 (location-based), and roughly 288,498,000 kg CO2e from Scope 3.

Parexel has established ambitious climate commitments, with Science Based Targets initiative (SBTi) validated targets. The company aims to reduce absolute Scope 1 GHG emissions by 42% by 2030 from a 2022 base year. Additionally, Parexel commits to reducing absolute Scope 3 GHG emissions by 25% by 2030, also from a 2022 base year. The company also states a commitment to continue actively sourcing 100% renewable electricity through 2030. Parexel International Corporation's near-term targets are classified as consistent with reductions required to keep warming to 1.5°C.