Litmus Employee Directory
Software DevelopmentMassachusetts, United States51-200 Employees
Litmus is a software development company headquartered in Cambridge, Massachusetts, with a workforce of between 51 and 200 employees. The company provides email-focused marketing software designed to help marketers organize, build, test, and review emails within a centralized application to streamline production and improve visibility and collaboration. Litmus serves major global brands across ecommerce, technology, and advertising, with nine of the top ten ecommerce brands, seven of the top ten technology companies, and 23 of the top 25 US ad agencies reported among its customers. The business is backed by Spectrum Equity and has undertaken multiple product updates and feature releases, including platform updates in 2024 and 2025. In April 2025, Litmus Software, Inc. was acquired by Validity, Inc.
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