The global investment banking market has seen substantial growth over the past few years, driven by an increase in mergers and acquisitions, capital raising activities, and financial advisory services. The market size of the global investment banking industry is estimated to be over $150 billion by 2023, with a compound annual growth rate (CAGR) of approximately 5% from 2018 to 2023.
https://medium.com/@harshita_soni/the-largest-investment-banks-in-the-world-3c7610f4257e