Guideline
New York, NY, United States · Founded 2020
51-200 employees
Sourced & current · updated Oct 24, 2026Website
Ad intelligence and media plan management company backed by GTCR. It sells advertising spend data (SMI) and media pricing data (SQADCosts), plus the MediaTools and Lumina planning software. Formed in 2020 as PC Dreamscape and renamed Guideline in June 2023.
Where they sit
Data & AnalyticsMarketing Analytics
Independent ad intelligence and media planning platform combining proprietary spend and pricing data with planning software, serving agencies, brands, and media owners globally.
Ownership
Subsidiaries