Follow Up Boss | 6,502 followers on LinkedIn. Follow Up Boss is the Real Estate Team OS – a flexible, open platform where top performers break free from the constraints of traditional CRMs and build thriving businesses. With FUB, everything gets organized, agents engage with the right people at the right time, and you have total visibility into what’s happening. Now your team runs smoothly, increases production, and stays accountable, whether you’re in the office or not.