Case Study: Kammann Rossi achieves 5X lead growth and €500K revenue increase with HubSpot

Kammann Rossi Increases Leads by 5X with HubSpot

Kammann Rossi is a long-standing German marketing agency that evolved from corporate publishing into digital communications and inbound marketing. By 2015 it was hampered by disconnected point solutions and unclear analytics, leaving the agency stuck in a “growth gap” where generating web traffic, proving ROI and closing deals was inefficient.

Kammann Rossi joined the HubSpot Partner Program and adopted the HubSpot growth stack (Marketing, CRM and Sales), centralizing content, lead nurture and analytics. The integrated approach boosted leads 5X (with 65% from inbound), added €500K in agency revenue, put 60% of clients on retainer, and enabled scalable, measurable inbound services for both the agency and its customers.

Kammann Rossi

Carsten Rossi

Chief Executive Officer