The smart thermostat maker, backed by Just Energy and Carrier in the past, has raised new funding from investors including the $100m Amazon Alexa Fund.

Canada-based smart thermostat developer Ecobee completed a $35m funding round backed by e-commerce company Amazon’s Alexa Fund yesterday.

Alexa Fund, formed to fund technology compatible with Amazon’s Alexa cloud-based voice service, was joined in the round by investment management firm Thomvest Asset Management and venture capital firm Relay Ventures.

Founded in 2007, Ecobee produces wifi-connected thermostats with room sensors, and its latest model, the Ecobee3, is directly compatible with Amazon’s hands-free Echo speaker, meaning room temperature can be controlled by…