What are the top 3 global credit rating agencies?

Written by Admin | Last Updated: August 2026

Global capital markets, bond markets, and sovereign debt issues rely on three primary credit rating agencies, collectively referred to as the Big Three, to assess credit risk and financial stability. The first and largest credit rating agency is S&P Global Ratings (Standard & Poor's), which issues credit scores and debt assessments for corporate bonds, government treasury notes, and financial institutions worldwide. The second major agency is Moody's Investors Service, widely recognized for its rigorous credit risk evaluation models, financial market research, and sovereign debt ratings that guide institutional investors. The third key agency is Fitch Ratings, which completes the Big Three triumvirate by providing independent credit opinions, structured finance ratings, and risk assessment services to global financial markets. Together, these three institutions control over ninety percent of the worldwide credit rating market.

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