Sellforte

What is Sellforte?

Sellforte is an enterprise-grade marketing measurement and optimization platform that unifies marketing mix modeling (MMM), incrementality testing, and attribution into a single always-on system. Founded in 2017 and headquartered in Espoo, Finland, it helps ecommerce, DTC, and retail brands measure the incremental sales impact of their media spend and receive campaign and ad-set-level budget recommendations. The platform runs a continuously refreshed causal Bayesian model to calculate marginal return on ad spend across markets.

How Sellforte works with TikTok

As a TikTok Marketing Partner for measurement, Sellforte quantifies the true incremental impact of TikTok spend within a brand's full media mix rather than relying on last-click attribution. Its Media Buyer Agent can push approved budget recommendations directly to TikTok via API, so insight and action happen in the same system. In a published case study, retailer C&A used Sellforte's MMM platform to measure TikTok's cross-channel effect and found TikTok became one of its top five best-performing channels.

Key features

• Always-on causal Bayesian marketing mix modeling with continuous refresh
• Incrementality testing hub combining geo-lift, conversion-lift, and A/B experiments
• Attribution correction delivering true incremental ROAS at campaign and ad-set level
• Media Buyer Agent that pushes budget changes to Meta, Google, and TikTok via API
• Multi-market measurement across separate regional models

Pricing

Not publicly listed. Sellforte uses custom enterprise pricing aimed at large retail and ecommerce brands; prospective customers contact sales for a quote.

Best for

Enterprise ecommerce, DTC, and retail brands that run significant media spend across multiple markets and want continuous, incrementality-corrected measurement to optimize budget allocation, including TikTok spend.