The round of funding, which Continuity Control CEO and founder hopes will be the last it will need, came from Connecticut Innovations and several angel investors.
It comes after a $1.1 million round in July 2011, and a $2.1 million round in 2010.
The Connecticut-based company will use the round to expand the company's support and sale infrastructure for growth.
In preparation for growth, Continuity Control is expanding to an office space that is 4 times the size of its current location.
To learn more about Continuity Control, watch its FinovateSpring 2010 demo.