Participated · Seed · Jun 2026

Qubic develops Kinetic Inductance Traveling Wave Parametric Amplifiers (KI-TWPAs), ultra-low-noise, wide-bandwidth microwave amplifiers intended for reading out superconducting qubits and compatible with other qubit modalities. Its amplifiers derive nonlinear inductance from the transmission line material rather than Josephson junctions, aiming for a more robust, scalable device that operates near the quantum limit and supports multiplexed qubit readout. Qubic reports heat dissipation for its amplifiers is expected to be cut to under 0.1 mW per amplifier, addressing a key bottleneck in cryogenic quantum systems. The company has sold its devices to Quantum Machines and plans to scale manufacturing to meet demand from quantum computing and defense customers. Qubic is also developing an RF quantum sensing platform leveraging its amplifier technology for applications such as threat detection and covert communications, and intends to grow its team three-fold to achieve these goals.

Participated · Equity · May 2026

Nord Quantique develops a hardware-efficient quantum computing architecture that embeds error correction at the individual qubit level using superconducting bosonic codes. Its design targets a 1:1 logical-to-physical qubit ratio to reduce physical qubit overhead and capital requirements compared with legacy quantum systems. The architecture is said to enable faster clock speeds and data-center-compatible scaling. The company is led by co-founder and CEO Julien Camirand Lemyre and is based in Sherbrooke, Quebec. Financially, Nord Quantique recently raised $30M in growth equity at a $1.4B valuation, and previously secured $16M from the Canadian Quantum Champions Program and $5M in active DARPA Stage B funding with potential for further DARPA funding. The company plans to use recent proceeds to scale engineering operations and advance toward commercially viable, fault-tolerant quantum computers by 2030.

Led · Seed · Apr 2026

SBQuantum develops and delivers quantum diamond magnetometry platforms designed for applications in navigation, threat detection, and public safety. Founded in 2017, the company has secured over $15 million in R&D contracts, including work with the Canadian Department of National Defense and the European Space Agency, and already serves several customers. With the closing of a $4 million seed round, SBQuantum plans to expand its team and accelerate development and commercialization of its products. The company has named Eric Giroux as CEO to lead scale-up and commercial efforts and has created a U.S.-based sister corporation, Zero Drift Technologies, in Cambridge, Massachusetts to address U.S. government and defense prime contractor customers while maintaining its Canadian engineering base. SBQuantum intends to fast-track its product roadmap and grow its customer base through renewals and new contract wins in the coming phase.

Participated · Series A · Mar 2026

Femtum develops laser technologies and solutions aimed at advanced semiconductor manufacturing. The company positions its technology as enabling critical laser processes needed for next-generation chips powering the AI era. After closing an oversubscribed $16M Series A, Femtum plans to accelerate deployment of its laser technologies. Cathay Venture's participation is noted as helping the company deepen its presence in the global semiconductor ecosystem, particularly in Taiwan. The company described the financing as a milestone and credited investor introductions and CFO Francois Courteau for executing the round.

Led · Seed · Jun 2025

Xatoms develops solar-activated, infrastructure-free water treatment materials discovered with an AI and quantum chemistry platform. Its core product is a computationally discovered material that can purify contaminated water in about 30 minutes using only sunlight or LED light, addressing biological pathogens, heavy metals and chemical pollutants. The startup targets remote communities, Indigenous regions and industrial sites that lack conventional water systems. Founded in 2024 by Diana Virgovicova (CEO), Kerem Topal Ismail Oglou and Shirley Zhong, the Toronto-based team combines chemical engineering, quantum science and AI expertise; Virgovicova was named to Forbes 30 Under 30 North America 2025. Xatoms has raised $3M in pre-seed funding (including $2M in venture capital and $1M in non-dilutive grants) and plans to use the capital to scale pilot programs, grow technical and manufacturing teams, and expand partnerships with communities, industry and government. The company says its platform also has potential beyond water purification for broader materials discovery across climate tech and sustainable manufacturing.