NTOPOLOGY

HEADQUARTERS: New York City FOUNDERS: Bradley Rothenberg (CEO), Greg Schroy EMPLOYEES: 82

Rothenberg, 35, is building next-generation design software that relies on mathematical computations to create 3D-printed parts and products that are lighter and more efficient than would be possible with older CAD systems. The nTop software has, for example, been used to redesign brackets for space satellites and to make more-efficient spinal cages for back surgery. Despite the pandemic, it raised an additional $42 million in June, led by Insight Partners. Other investors include Canaan and Lockheed Martin, which is also a customer. The fresh capital will help nTop expand as industries including aerospace, automotive and health care adopt 3D printing for future products such as electric vehicles. Revenue is expected to more than triple this year, to $5 million, up from $1.5 million in 2019.