TTD vs PCTY Comparison

The Trade Desk provides a self-service platform that helps advertisers and ad agencies programmatically find and purchase digital ad inventory (display, video, audio, and social) on devices like computers, smartphones, and connected TVs. The firm's platform is referred to as a DSP in the digital ad industry, and it generates revenue from fees based on a percentage of what its clients spend on advertising, sometimes referred to as a "take rate."

Paylocity is a cloud-based human capital management provider offering payroll, compliance, and human resources management solutions. With the addition of expense and IT management modules, Paylocity unifies back-office operations spanning HR, finance, and IT on a single platform and bills customers on a subscription basis. The firm's customer base skews toward the midmarket and is primarily based in the US. As of fiscal 2026, Paylocity has nearly 44,400 customers.