< PrevNext > 24. Boston Consulting Group Boston Share 2019 U.S.-Booked Air Volume: $149 millionConsolidated U.S. TMC: Amex GBTBCG reduced its emissions related to business travel by 9.5 percent in 2019 as the global management consulting firm replaced some in-person meetings with virtual ones and sought less carbon-intensive modes of transport. BTN estimates air spend originating in the US fell by $1 million to $149 million, even though BCG's total workforce worldwide rose from 18,500 employees to 21,000 in 90 cities across 50 countries. Revenue grew from $7.5 billion to $8.5 billion. In September 2020, BCG accelerated its commitment to sustainability by pledging to reach net-zero emissions by 2030. The firm will invest in carbon removal projects for remaining emissions at a rate of $80 per metric ton. The new environmental strategy includes a target of reducing emissions from business travel, which account for more than 80 percent of BCG's carbon footprint, by at least 30 percent per full-time employee by 2025, with expected further improvements to follow.