The new funding brings the total raised by UserEvidence to $21m, and will be used to support its product innovation and market expansion.

The acquisition of Zealot will help support UserEvidence’s work by providing the tools to build, manage and grow its customer evidence platform.

Zealot has retained its name and branding following the acquisition.

Evan Huck, chief executive at UserEvidence, said in a blog post: “Our mission remains the same: help B2B marketers build trust with their buyers.

“This isn’t about changing who we are – it’s about completing the picture.”