Marketing automation platform Startups

GNU is a bootstrapped marketing automation and email marketing SaaS platform launched in 2008 by Kim Albee, serving small and mid-sized businesses with deep WordPress integration. Currently operating at $85k MRR with ~500 customers paying an average of $170/month, the company has achieved healthy 42% YoY growth while maintaining less than 5% monthly churn through a partnership-driven growth strategy focused on niches like continuing education and entrepreneurship.