No. 297
SQUARED AWAY
CEO: Michelle Penczak
Category: Business Products & Services
Three-year revenue growth: 1,908%
• Michelle Penczak could see the look on prospective employers’ faces when she told them her husband was a Marine Corps pilot. Like many military families, the Penczaks moved every few years, and it always came up in interviews. So it was a relief when, in 2013, Penczak landed a job working remotely at virtual assistant company Zirtual, where she led a team of 15 employees and