From that point on HunterLab was a manufacturer .
That business slowly grew over the years , moving to Fairfax , VA and , in 1979 to Reston , VA where it is headquartered today .
From that point on HunterLab was a manufacturer and that business slowly grew over the years , moving to Fairfax , VA and , in 1979 to Reston , VA where it is headquartered today .