Here's how four CEOs created their own momentum during the challenging early stages of their companies

When you're a founder, momentum in the early stages of your company is crucial. But what happens when you're unable to gain the initial traction you need to keep going? In candid conversations during Jon Fortt's digital series "Fortt Knox", Co-Founder and CEO of Medable Dr. Michelle Longmire, Calendly Founder & CEO Tope Awotona, NorthOne Co-Founder & CEO Eytan Bensoussan and Manny Medina, Outreach Co-Founder & CEO share with CNBC TechCheck's Jon Fortt how they managed to reframe their perspective and ultimately drive their teams towards success