Case Study: Stack Optimize reaches $1M ARR with Prospeo

How Stack Optimize Hit $1M ARR by Trusting One Data Provider for Clients AND Internal Outbound

Stack Optimize, an agency that advises on tool stacks and runs outbound campaigns, faced a significant challenge with unreliable data providers. The co-founders, Felix and Penn Frank, could not confidently recommend a data vendor to their clients due to issues like poor email deliverability and domain burns. This problem intensified when they began running their own campaigns, as their internal outbound efforts also suffered from high bounce rates and inaccurate contact information. They needed a single, trusted provider for both their client work and their own pipeline generation.

The agency implemented Prospeo as their sole data provider after it outperformed competitors in their testing. Using Prospeo's data enrichment and verified contact services, they achieved a 94%+ email deliverability rate and reduced bounce rates to under 3% for their clients, all while experiencing zero domain flags. This reliable data fueled their growth, allowing Stack Optimize to hit $1M in annual recurring revenue and expand from two co-founders to a team of seven employees.

Stack Optimize

Penn Frank

Co-founder