No two RIAs are identical but broadly speaking, firms that seek to serve the same types of clients tend to end up with similar-looking business models. A firm’s structure tends to reflect the types of clients the firm seeks to serve and the value proposition it offers to those clients. The result is that firms tend to cluster around a handful of distinct models, and identifying what those models are and how they differ can be a useful exercise both in analyzing a particular firm and in thinking about practice management issues.