The Top Entrepreneurs In Money, Marketing, Business And Life

Callum Mckeefery built Reviews.io from scratch with his wife—no funding, no equity dilution, and no fluff. In this episode, he shares how they scaled to $12M ARR, outpaced VC-backed competitors, and exited for $82M in an all-cash deal. He breaks down the exact viral loop that created SEO-fueled growth, how they hit $240K revenue per employee, and why he chose not to give employees equity—but still made many millionaires. Callum also opens up about the emotional driver behind the exit: his son's rare genetic condition, and the cutting-edge research he's now funding. Finally, Callum talks about his new SaaS startup, Partner.io, where he's rebuilding from zero with the same gritty playbook.   In this episode, you'll learn: How to engineer viral loops in B2B SaaS Why small ACV doesn't mean slow growth How to win against VC-backed competition without fundraising The emotional side of selling a company Tactical breakdown: SEO, paid ads, and partnerships as growth levers Post-exit reflections and the pit