
Venture capital firm Detroit Venture Partners led the B round, while Compuware Ventures stops further commitments.
In January, Soldsie said it had raised $425,000 from 72 investors through FundersClub.
The company is launching with 50 clients, including Corel, Punchh, and AlterPoint.
In January, Axel Springer said it had also bought a 49% stake in Germany-based conference provider Hy! Berlin.
Samba Ads was founded in 2012 as a spin-off to online video platform Samba Tech.