Big Ass Fans
Big Ass Fans entered the commercial business market in 2008, debuting a line of fans ranging from to in diameter. The following year, it began manufacturing fans in sizes suitable for residential settings. In late 2011, Big Ass Fans acquired a manufacturer of energy efficient residential fans. Haiku models incorporate direct current, permanent magnetics and aerodynamic airfoils making them 80% more efficient than conventional ceiling fans. They held the top 10 spots on Energy Star's Most Efficient 2014 list. In 2014, the company added smart technology SenseME to the Haiku ceiling fan. Haiku with SenseME integrates with the Nest Learning Thermostat through a smartphone app.
Vent-Axia
Vent-Axia introduced the world’s first Safety Extra Low Voltage (SELV) fan in 1992. SELV was designed for the extra safety that is required in domestic bathrooms. Recently, the company has introduced a range of LoCarbon domestic fans, using DC motors which reduce energy consumption by up to 90%, when compared to variants using AC motors. In 2017, the company released their new Positive Input Ventilation (PIV) unit titled "PoziDry Pro".