Stathera Raises US$55 Million to Build Chip Clocks in Montreal

Montreal semiconductor company Stathera closed an oversubscribed US$55 million Series B led by Maverick Silicon, with BDC Capital, Celesta Capital, MediaTek Innovation Fund, TXC Corporation, and Ultratech Capital Partners participating.

Stathera builds silicon timing components — clocks for chips — used in phones and, increasingly, in hyperscale AI data centres that cannot tolerate drift. The company said it will use the money to mass-produce its second-generation parts and open a Silicon Valley office. Total capital is now about US$75 million.

Precision timing is unglamorous infrastructure. It is also a bottleneck as compute clusters get larger and more tightly coupled. If the clocks are wrong, the cluster wastes power. That is why a Montreal spin-out of Nxtsens is raising into the same boom that is straining Ontario and Quebec grids.

CEO George Xereas has framed the round as proof that this layer of the stack can be built in Canada. The Series B is large enough to try. Mass production, yields, and whether customers will dual-source a Canadian clock against Asian incumbents are the next facts that matter.