Investment banks advise companies, financial sponsors, governments, and other institutions on transactions such as mergers and acquisitions, or M&A, and capital raising. Although bankers often sort firms into three broad categories, there is no official classification system. A bank’s position can also change over time, and its strength may vary considerably by industry, product, and geography.
A bulge bracket is a large, global financial institution with a broad investment banking platform. These banks generally advise large companies on major transactions and offer multiple products, including M&A, equity financing, debt financing, and restructuring in some cases. Many also have substantial sales and trading, research, wealth management, lending, and asset management operations.
An elite boutique is an advisory-focused firm known for competing for prominent assignments, particularly M&A and restructuring. Unlike a bulge bracket, an elite boutique generally has a narrower range of businesses and may not maintain a large balance sheet for lending. The term “elite boutique” is informal: it typically describes independent advisory firms with strong reputations, not every small investment bank.
A middle market bank primarily serves companies whose transaction sizes are below the largest deals pursued by global banks, although definitions of the middle market differ. Some are full-service banks offering advisory and financing products; others are smaller advisory firms focused on particular industries or regions. A strong middle market platform may lead important transactions within its target client segment and should not be confused with a local firm that only works on very small deals.