Exhibit 99.1 Press Release BSY Investor Contact: Eric Boyer Investor Relations Officer ir@bentley.com Bentley Systems Announces First Quarter 2024 Results EXTON, Pa. – May 7, 2024 – Bentley Systems, Incorporated (Nasdaq: BSY), the infrastructure engineering software company, today announced results for its first quarter ended March 31, 2024. First Quarter 2024 Results • Total revenues were $337.8 million, up 7.4% or 7.2% on a constant currency basis, year-over-year; • Subscriptions revenues were $307.1 mill ...