SoftBank Vision Fund is seeking to invest up to $300m in dogsitting app developer Wag, which had initially set a $100m target for its next round.

US-based dog-walking app provider Wag is set to receive up to $300m from SoftBank Vision Fund, the $97.7bn investment vehicle created by telecommunications conglomerate SoftBank, Recode reported on Friday.

Wag had initially targeted $100m for its next funding round and already secured a commitment for at least some of that amount from an undisclosed venture capital firm, an unnamed source told Recode. The deal has not yet closed.

Founded in 2014, Wag operates a mobile marketplace that enables dog owners…