Prior to Clubsource, Kirk was associated with Pacific Peninsula Group, a developer of commercial office projects and large estate residential projects in the San Francisco Bay Area. His responsibilities included property acquisitions, design development, city entitlements, equity and debt financing, and construction management. Kirk was also a founding employee of On Fiber Communications, a metro based fiber optic company. As Vice President of Network Deployment he was responsible for building networks in San Francisco, Seattle, Washington DC, Dallas, Houston, and Los Angeles. Kirk also served as Director of real estate and network development for Metricom, a provider of nationwide wireless data systems.