Boathouse Capital has completed a growth investment in Sandboxx, a military platform focused on connecting service members with their families, career content and lifestyle utilities.

The firm’s product, Sandboxx Letters, digitized the process of sending to letters to service members and helps maintain bonds between families during basic trainging. Additionally, the firm provides subscription-based newsletters and mail products to those in basic training.

Following the deal, Sandboxx intends to expand beyond basic and add new features including a digital wallet, career advancement tracker and secure unit communications.

“Sandboxx solves an age old-year problem within military communication,” said Joe Ferguson, Boathouse VP. “I’m excited to partner with Sam and his team to accelerate the existing platform and pivot towards post-basic training opportunities.”