2018 Fast 50
26: Open Systems Technologies Corporation
| Location: | Gainesville, Virginia |
| Annual growth rate: | 87.35% |
| 2017 Revenue: | $10,764,079 |
| 2016 Revenue: | $8,609,704.00 |
| 2015 Revenue: | $5,498,343.00 |
| 2014 Revenue: | $2988377 |
| 2013 Revenue: | $873,660 |
| Leadership: | Thomas R. Truitt |
| Number of employees: | 120 |
| Website: | https://www.ostcorpweb.net/ |
| Lines of business: | IT Professional Services including Cyber Security, Cloud Infrastructure and Support, Software Development, and System Integration |
| Major customers: | US Army, Defense Logistics Agency, FBI, US Postal Service, NYC HRA MIS |
| Major contracts/projects: | N/A |