FilterEasy, a US-based subscription service for heating, ventilation and air conditioning (HVAC) filters, raised $6.9m in a series B round on Tuesday from investors including North Carolina State University’s endowment fund.
NC State Endowment Fund participated alongside Arsenal Venture Partners, which led the round, Bonaventure Capital, Cofounders Capital, Idea Fund Partners, Triangle Angel Partners and John Replogle.
Founded in 2013, FilterEasy offers HVAC air filters on a subscription basis, regularly delivering filters in the required size to customers. Replacing the filters at regular intervals prolongs the HVAC system’s lifespan and ensures heating and cooling costs are kept down.
The company was launched by Thad Tarkington, chief executive, and Kevin Barry, chief operating officer, then students at North Carolina State University.
FilterEasy has now raised $11.4m in total funding, according to the latest press release.
The company obtained $4.2m from unnamed investors in July 2016, according to a securities filing, following more than $1.5m led by Idea Fund Partners, with participation from Cofounders Capital, in November 2015. It is not clear if these investments form part of the same round.
Azure Capital led a $1.2m seed round in January 2015, with participation from RTP Capital and several angel investors.
The venture arm of investment firm MDO Holdings has also been listed as a shareholder in FilterEasy’s latest release, though its precise involvement is unclear.