Several business schools offer online training programs for investment banking, and the “best” option can vary depending on individual preferences and specific criteria. Here are a few renowned business schools that offer online programs in investment banking:

1. New York Institute of Finance: The New York Institute of Finance offers online programs specifically focused on investment banking, such as the Investment Banking Professional Certificate. They have a strong reputation in the finance industry and provide comprehensive training on topics like financial modeling, valuation, mergers and acquisitions, and capital markets.

1. Wharton Online, University of Pennsylvania: Wharton Online offers various finance-related online programs, including courses on investment banking. Their programs are developed by faculty from the Wharton School, which is renowned for its expertise in finance and business. The Investment Banking and Private Equity Specialization is one of their popular offerings.

1. Harvard Business School Online: Harvard Business School Online offers courses in finance and accounting, including topics related to investment banking. Their programs are designed to provide a practical understanding of financial concepts and their application in real-world scenarios. The courses are taught by Harvard Business School faculty and utilize case studies to enhance learning.

1. London Business School: London Business School offers a range of finance-focused online programs, including some that cover investment banking topics. They have a strong reputation in the finance industry and provide insights into financial markets, corporate finance, and investment strategies. Their programs are designed to provide a global perspective on finance.

1. INSEAD: INSEAD is a leading global business school that offers online programs related to finance and investment banking. Their courses cover topics such as corporate finance, valuation, and financial decision-making. INSEAD’s online programs are known for their academic rigor and practical relevance.

It’s important to note that while these business schools offer valuable online training programs for investment banking, they may not provide a formal degree or accreditation specifically in investment banking. Additionally, it’s worth considering other factors such as program cost, duration, curriculum, faculty expertise, and alumni network when evaluating the best option for your specific needs and career goals.