Deepinder Goyal’s startup Temple picks Zetwerk, Ethereal Machines for production scale-up

Deepinder Goyal's wearable technology startup Temple has partnered with manufacturing firms Zetwerk and Ethereal Machines as it prepares to ramp up production and expand operations. Temple was founded more than a year ago by the Eternal founder and is building wearable devices designed to monitor brain flow continuously through a sensor-based patch placed near the user’s temple.

The startup has already started shipping its first batch of around 100 devices and plans to gradually increase output over the next few weeks.

People aware of the development said the company is handling core manufacturing internally while outsourcing specific precision-focused processes to specialist firms. Ethereal Machines is expected to support areas such as sensor precision manufacturing and CNC-based components, while Zetwerk will help Temple scale manufacturing operations.

The collaboration reflects overlapping investor networks between the companies involved. Peak XV Partners has backed Temple, Zetwerk and Ethereal Machines, while Steadview Capital — an investor in Temple — also holds a stake in Ethereal Machines. Several Zetwerk founders are additionally angel investors in Ethereal Machines.

The startup is reportedly planning an initial production run of several thousand units and is targeting both Indian and overseas markets, including the United States.

The move comes amid growing global interest in wearable health and wellness technology. Devices capable of tracking health metrics such as recovery, sleep, heart rate and stress levels are increasingly moving into the mainstream consumer market.