The investment, which has been raised from high net worth individuals and existing shareholders, brings the total funding secured by the company in 2015 to just short of £5 million.
Chief executive Sara Bell said: “Using our innovative supply model to unlock better value from UK energy is good for customers. Tempus works hard to deliver value to customers through innovation.
“I am motivated by the fact that every time we lower our customers’ energy bills, we are empowering other British businesses to be more competitive in their own markets.”
The London-based UK energy supplier has also appointed a new member to its board, former Pension Insurance Corporation chief executive John Coomber.
On his appointment, Coomber commented: “Tempus Energy is a pioneer in the global race to unlock customer value from our outdated and inefficient energy systems and I am thrilled to be joining the board.”
Read Utility Week’s interview with Tempus Energy chief executive Sara Bell here.