Ranked on the Slator Language Service Provider Index

CLI remains highly ranked on the annual Slator Language Service Provider Index (LSPI), a ranking and index of the world’s largest translation, localization, interpreting, and language technology providers. Slator is the leading source of analysis, news, and research for the global translation, localization, and language technology industry. Participants in the Slator LSPI are listed in order of revenue (in USD for the prior year). The ranking is supplemented with information relating to each company, such as year-on-year growth, corporate headquarters, and ownership.

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CLI is ASTM certified, which means we’ve opened our books, policies, and procedures for a third-party audit to prove we’re providing quality interpretation and translation services.
CLI consistently ranks among the top LSPs globally by CSA Research. Their annual rankings, based on verified revenues, highlight CLI’s leadership and growth in the industry.
Led by CEO Kristin Quinlan, remote interpreting company Certified Languages International ranks #6 on Nimdzi’s 2025 List of Largest Women-Led LSPs in the World.