Our ambition is to develop a French acoustic HP industry by bringing together university, industrial and commercial players from the Pays de Loire and Brittany region. Our objective is to participate in the reindustrialization of France, in the development of local jobs with high added value, and a strong economic, social and ecological impact. All this to meet the IPCC objectives of reducing CO2 emissions in Europe by 55% by 2030.
Developed on a large scale, thermoacoustics offers sustainable solutions to current climate issues and canbe applied to many other uses than heat pumps (airconditioning for example). Our mission is to unleash thepower of this natural energy by disseminating it to thewidest possible audience in order to set in motion anessential technological breakthrough that will becomeone of the solutions to the current climate problem.
In France, half of the CO2 emissions are generated by central heating and domestic hot water, in the entire building sector.
Old housing in France consume on average 4 to 6 times more than new constructions which consume 50kwhep/m²/year according to the RE2020.
If the heat pump is the solution for heating by dividing energy consumption by 4 while reducing CO2 emissions by 80%, and if the heat pump will replace gas and oil boilers with low energy efficiency (4 to 5 times lower), its development may be hindered by its physical limits:
Problems, for the traditional two-stage hugh temperature HP : high maintenance costs, cycling problem which deteriorates the theoretical coefficient of performane (COP), limited lifetime and high CAPEX.
The use of greenhouse gas refrigerants requires specialized installers, that implies margin stacking which locks access to a large majority, and has a strong impact on the consumer selling price.
"You knew solar energy, hydraulic energy, wind energy, now you will have to rely on the energy of sound."
Acoustic waves are generated and amplified automatically in our machines by temperature gradient or by electricity. They do a compression-expansion work in the manner of a piston in a thermal engine or in a compression machine used to produce heat or cold, which makes it possible to carry out ultra-efficient heat pumping, without moving parts and without greenhouse gas refrigerant.
Compression produces heat
Expansion produces cold
Gain up to 20% thanks to a better thermodynamic cycle associated with acoustic modulation
Quiet (below 30 dB)
Simple control, no cycling effect
Neutral gas, He, (GWP=0), F-Gas and Reach compatibility
Doubled lifespan
Can be installed by a plumber or heating technician
Gas is neither flammable nor explosive
No wear parts in the core
Easy access to high temperature (>50°C)
The only heat pump 100% made in France
Et par rapport à une chaudière à gaz traditionnelle
EQUIUM is a unique entrepreneurial adventure that is developing every day thanks to a complementary team with a strong experience in innovation processes, design, development of breakthrough technological products, acceleration and industrialization of technological innovation and HVAC industry.
The scientific aspects are supported by the CES from Mines Paris Tech and the LIED PIERI, major university partners in heat transfer and thermoacoustics. Two councils (strategic and scientific) support the company, notably with extensive experience in the field of heat pumps, energy and high-tech industry.
Comment manager une startup deeptech en résonance ?
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Entrepreneur from over 18 years of experience, expert in innovation through design thinking, Cédric founded EQUIUM to develop an impactful and scalable solution to energy and climate transition that the world is facing.
With over 30 years' engineering experience in design and methods offices in the automotive industry (engines, high-pressure pumps, solenoid valves, notably for PSA Peugeot Citroën, Siemens Automotive, Continental) and in the high-end audio acoustics sector (DEVIALET speakers and connected loudspeakers). I actively contributed to the scale-up of 3 start-ups, recruiting and setting up the organization and technical expertise needed to industrialize demanding products with ambitious timing and without compromising on quality. I joined Equium with enthusiasm to take up this 4th challenge in the key field of heat pumps for our future.
After 10 years of R&D in the aeronautics sector, François-Xavier joined the HVAC sector in 2011 to develop new ranges of thermodynamic machines and upgrade existing ranges. At the same time, as part of a project-based approach, he works with customers to build customized solutions that meet the specific requirements of each operation. Convinced of the importance of Made In France and the benefits of the acoustic approach, he joined EQUIUM to develop the acoustic heat pump.
Olivier began his career at the automotive equipment manufacturer Bosch, where he spent 12 years working in engineering, purchasing, and quality. Building on this strong industrial background, he moved into the startup world, where he led and structured industrialization and operations activities at two innovative companies: Devialet, a French manufacturer of high-end audio speakers, and Velco, a provider of IoT solutions for the cycling industry. In 2025, he joined Equium as a natural continuation of this journey, driven by a desire to contribute to an impact-driven company rooted in a Made in France approach.
Philippe has 10 years of experience supporting technological innovations related to the energy transition through his previous experiences in both public and private research. He has specialized in strategic and operational B2B marketing and decided to embark on an entrepreneurial adventure focused on a project with a positive impact. Consequently, he naturally joined EQUIUM as a Product Marketing Manager. In this role, he is responsible for listening to the market and the company's partners to guide technological developments and define the go-to-market strategy.
Jacques Mouchet is the Founder and President of ATEQ, the global leader in measurement solutions with 26 wholly-owned subsidiaries since 1982. Millions of ATEQ solutions have been installed through their various divisions: the Leak/Flow Testers Division, the Aviation Division, and the TPMS (Tire Pressure Monitoring System) Division. Their instruments are used worldwide in a variety of applications, including medical devices, industrial equipment, automotive, electronics, household appliances, and aerospace. ATEQ's annual revenue is approximately $200 million.
Olivier leads Enthéos, a Family Office specializing in private equity investment based in Paris and Rennes. Enthéos actively supports companies that place decarbonization and sustainability at the heart of their business model.
After starting his career in Chile, where he founded the country's first microcredit bank, Contigo, Hubert then pursued an international career for 11 years at Rhône-Poulenc Chimie (which became Rhodia in 1998, then Solvay). In 2004, he joined ARMOR GROUP as General Manager with the mission of giving new momentum to the company, and in 2014, he took control of it with the management team and 500 employees. ARMOR GROUP is an industrial SME headquartered in Nantes (2,500 employees, €436M turnover in 2023). Hubert de Boisredon is a Knight of the National Order of Merit (2009) and a Knight of the Legion of Honour (2017).
The co-investment fund of the Pays de la Loire Region aims to support VSEs and SMEs in the Pays de la Loire region during the start-up and development phase, through interventions of between €100,000 and €700,000 in equity or quasi-equity investments alongside private financial partners. Up to date, Pays de la Loire Participations invests in the capital of around sixty companies in Pays de la Loire. The management of this fund has been entrusted to the Capital Investissement company SIPAREX with a dedicated team in Nantes.
Thierry Roussel, an entrepreneur over 20 years, supported La Centrale des Particuliers as marketing director then Deputy General Director and was involved in the launch of Club Internet in 1995 until the sale to Deutsch Telekom. In 2000, he became deputy general manager of Poliris (SeLoger, Promovacances), then the strategic and marketing director of 9 Telecom, resold 12 months later to the Louis Dreyfus group. At the end of 2002, he co-founded Direct Energie and remained a shareholder until the sale in 2018 to Total. In 2012, he launched into impact as Business Angel and founded Senioradom, a company that will disrupt the world of Teleassistance, in France and China. He sold the company to the Vyv Group in March 2020. Since then, Thierry has been involved in Energy, supporting vulnerable people (physical disability, autism), food and responsible agricultural production.
Martin Fornage is an electronics Engineer who started his career in the telecom industry in France and in California. He is specialized in the digital control of Analog Electronics and systems engineering. He started Enphase in 2006 with his friend Raghu Belur and took the role of CTO until his retirement in 2020. Enphase is now the worldwide leader in solar systems based on microinverters. The Enphase offering requires designing low cost, high efficiency and very high reliability equipment. This combination is rarely seen in any industry. Martin Fornage holds 100 US patents. He lives in Northern California and advises a few companies in the renewable energy sector.
Philippe Pradel, aged 65, is a graduate of France’s leading engineering school, the École polytechnique and National Institute of Advanced Technologies (ENSTA). He joined the French Atomic Energy Commission (CEA) in 1980 to carry out experimental research on the Superphenix nuclear reactor before joining COGEMA in 1987 to work on nuclear fuel reprocessing at the Group’s nuclear fuel reprocessing plant in the Hague. He held a number of different positions at COGEMA before joining AREVA, where he managed the Group’s Upstream Business Group from 2002 to 2004. In 2005, he was appointed Director of the Nuclear Energy Division at the French Atomic Energy Commission and member of the AREVA Supervisory Board. From 2010 to 2017, he was appointed Senior Vice-President at ENGIE NUCLEAR DEVELOPMENT. Philippe Pradel has been awarded a number of decorations including Commander of the Order of the Rising Sun (Japan), Chevalier of the Legion of Honour and the National Order of Merit (France). He has been a member of the French Academy of Technologies since 2009.
Over the past twenty years, Ludovic has gained extensive expertise in general management and organizational coaching. This expertise was developed through engagements in private equity and venture capital sectors, focusing on micromobility, energy (CVC), and real estate industries in Europe, as well as general management assignments in the Middle East and Africa. Initially a consultant in organization and strategy, he has successfully led several transformation programs for medium to large international organizations, such as AXA, the BEL Group, NORAUTO, and VELIB. Living abroad for 10 years, including in the United Kingdom, the United States, Syria, Iran, and Egypt, Ludovic has acquired remarkable ease in intercultural environments.
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