HubSpot: Customer Count

We treated each domain as a single perspective and collapsed TechRadar's multiple values into one representative numeric (30,000 with 0.90). We then computed a weighted average across all sources using their confidence scores as weights: EmailToolTester (1000, 0.98), Trustpilot (1000, 0.60), PCMag (200,000,000, 0.70), EmailVendorSelection (200,000, 0.90), TechRadar (30,000, 0.90). The resulting weighted average is approximately 34,364,848 customers.