Dilution refrigerator firm Maybell Quantum has closed a new funding round.

Maybell develops supercold dilution refrigerators (aka cryostats) designed to keep supercooled quantum computers at the below-freezing temperatures required to create quantum states.

The company last week announced a $40 million Series B financing round led by Addition.

The investment will accelerate Maybell’s commercialization of next-generation cryogenic and RF systems. Maybell will expand production capacity and accelerate deployments across North America, Europe, the Middle East, and Asia.

“We’re at an inflection point where quantum systems are moving from proofs-of-concept and research tools towards real-world deployment,” said Corban Tillemann-Dick, CEO of Maybell Quantum. “This funding will help us invest in critical next-gen systems, scale manufacturing, expand global partnerships, and deliver the reliable, user-friendly systems that leading quantum teams need to deploy systems at scale.”

“Maybell is solving one of the most fundamental challenges in quantum computing, providing the foundational infrastructure on which the entire ecosystem relies,” added Todd Arfman, partner at Addition. “We’re proud to support Maybell as they pioneer advancements in cryogenic infrastructure and pave the way for the future of quantum technology.”

Colorado-based Maybell was founded in 2021 and exited stealth in 2022, launching with its Icebox (now the Fridge) cryogenic dilution refrigerator which it says will be made in the US. They first launched its larger Big Fridge unit in 2023, offering double the cooling capacity.

The firm closed a $25 million Series A funding round, led by Cerberus, in March 2024. Existing investors Lavrock Ventures, Caruso Ventures, Mark IV Capital, Decisive Point, In-Q-Tel, and Olive Capital joined the round.

For decades, companies developing cryostats have mainly dealt with academic customers in lab spaces. With the advent of quantum computing, however, the industry has had to change pace and adapt to the requirements of placing supercooling systems into data center white space. Oxford Instruments and Blufors are the incumbents, but there are a growing number of new players entering the fridge space, some specifically focusing on quantum computing.

Qubic secures grant to develop quantum amplifier

In Canada, Qubic has secured a grant to develop a new signal amplifier for quantum computers.

The company this week announced it has secured a CA$925,000 (US$668,900) grant from the Government of Canada.

This funding will support a CA$2.5 million (US$1.8M) project to develop cryogenic amplifiers made from quantum materials, which will help to overcome thermal barriers impacting the development of larger quantum computers.

While many quantum systems rely on supercooling to keep the quantum chips at the required operating temperatures, the heat generated by the system’s accompanying electronics typically requires extra cooling. Qubic said this can disrupt the proper functioning of cryogenics used in quantum systems and limit how many qubits can run together in a single cryogenic setup.

Traditional electronic amplifiers used in quantum systems to amplify a signal are the primary source of this heat dissipation, creating a significant barrier for the development of fault-tolerant quantum systems. Qubic said its new amplifer technology will improve the heat dissipation of amplifiers.

The company’s quantum amplifier is currently in the prototyping and testing phase, with plans to bring the product to market in 2026. Qubic said details about the first customer for these devices will be made public in the coming months.

“The quantum computing industry continues to progress quickly, yet technological barriers remain, and these must be overcome before the industry can deliver utility-scale quantum computers. This project will produce a new type of amplifier which will remove one of those key barriers,” said Jérôme Bourassa, CEO and co-founder of Qubic Technologies. “This non-dilutive federal funding represents a milestone for us. It not only supports our belief that there is demand for this product in a key strategic industry but also paves the way for us to commercialize these quantum amplifiers, which dissipate no heat.”

The grant was issued from the Government of Canada through the Department of Innovation, Science and Economic Development and the FABrIC program, administered by the Canadian Microelectronics Corporation.

Qubic is a spin-off of both the Institut Quantique of the Université de Sherbrooke and of the Institute for Quantum Computing of the University of Waterloo. The company said it is in discussions for a pre-seed investment round.

“As quantum computers scale, demand for ultra-low-noise, quantum-limited readout solutions is rising — positioning superconducting amplifiers as a high-value, enabling technology with growing commercial traction across global quantum markets,” said Lynn McNeil, VP FABrIC with CMC Microsystems.