Sago
Sago (formerly Schlesinger Group, rebranded in 2023) is a private, private-equity-backed market research firm. It sells qualitative and quantitative research, proprietary digital platforms, research facilities, and participant recruitment, with AI-enhanced analysis such as AI video summaries. Its customers include global brands, full-service research firms, ad agencies, and healthcare organizations. It is a services business that charges per project. Headcount is about 1,140–1,170 (2026). Revenue estimates vary: ZoomInfo gives about $107.6M and Latka gives about $127.2M for 2025. PitchBook lists about $34.7M raised across 4 financing rounds and 10 acquisitions, including Addison Research in 2021.
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