Investment bankers are financial professionals who help companies and governments raise capital by underwriting and issuing securities. They assist in the process of mergers and acquisitions, providing advice on valuations and negotiations. Their work often involves analyzing market trends and financial data to guide clients in making informed decisions. These bankers typically work for large financial institutions known as investment banks, which offer a range of services including initial public offerings (IPOs), debt issuance, and strategic advisory. They play a crucial role in connecting investors with opportunities, facilitating transactions that can significantly impact the economy.