> ## Content Index > Fetch the complete content index at: https://www.frenchtechjournal.com/llms.txt > Use this file to discover other available public pages before exploring further. # Hot seed deals 🔥: Diamfab, Firecell, Airthium, Self & Innov and more! - URL: https://www.frenchtechjournal.com/hot-seed-deals-diamfab-firecell-airthium/ - Published: 2024-04-09T10:14:00.000Z - Updated: 2024-05-15T10:15:53.000Z - Description: Investors swoon for Deep Tech, including Libu and Viqthor. - Author: Helen O'Reilly-Durand - Tags: Funding News ![DIAMFAB | LinkedIn](https://www.frenchtechjournal.com/content/images/2024/03/data-src-image-3b12537b-e2d4-4596-a40b-629317971e57.jpeg) **What:** [**Diamfab**](https://diamfab.com/?ref=frenchtechjournal.com)**,** a deeptech company using synthetic diamonds to make semiconductors. **Why:** To produce lighter, more temperature-resistant and energy-efficient semiconductors to fuel the next generation of power electronics in electric vehicles, industry, or electricity distribution networks. **Funding:** €8.7 million ‌‌ **Who:** Co-Founders[Gauthier Chicot](https://www.linkedin.com/in/gauthier-chicot/?ref=frenchtechjournal.com) & [Khaled Driche](https://www.linkedin.com/in/khaled-driche-7a375883/?ref=frenchtechjournal.com) ‌**Investors**: Asterion Ventures, Bpifrance, Kreaxl, Better Angle, Hello Tomorrow, Grenoble Alpes Métropole **What's next:** This initial fundraising will allow Diamfab to create a pilot line to pre-industrialize its technology, accelerate its development, and meet the growing demand for diamond semiconductors. ![](https://www.frenchtechjournal.com/content/images/2024/03/Screenshot-2024-03-30-at-09.08.09.png) **What:** [**Firecell**](https://firecell.io/?ref=frenchtechjournal.com)**,** a developer of 5G connectivity hard and software solutions for enterprises. **Why:** To democratize 5G private networks by providing affordable open-source solutions tailored to the needs of businesses. **Funding:** €6.6 million ‌‌ **Who:** Co-Founders[Claude Seyrat ](https://www.linkedin.com/in/claudeseyrat/?ref=frenchtechjournal.com)&[Olivier Dhotel](https://www.linkedin.com/in/olivier-dhotel-590b64278/?ref=frenchtechjournal.com) ‌**Investors**: Ventech, Matterwave Ventures, Bpifrance, Bouygues Telecom Initiative **What's next:** Develop a new range of products with features such as geolocation and protection against cyber-attacks. Deploy Firecell's offering in Europe, notably in Germany, the leading European industrial market, where the startup is establishing a subsidiary. Recruit around fifteen people (sales, R&D, etc.). ![](https://www.frenchtechjournal.com/content/images/2024/04/Screenshot-2024-04-02-at-11.48.03.png) **What:** [**Airthium**](https://airthium.com/?ref=frenchtechjournal.com)**,** a Deeptech developer of innovative high-temperature heat pumps (up to 550°C) for industrial heating. **Why:** To reduce global CO2 emissions by replacing gas heating in the industrial space with a solution that is highly energy efficient, low carbon, and cost-effective. **Funding:** €3 million ‌‌ **Who:** Co-Founders [Andreï Klochko](https://www.linkedin.com/in/andreiklochko/?ref=frenchtechjournal.com)&[Franck Lahaye](https://www.linkedin.com/in/francklahaye/?ref=frenchtechjournal.com) ‌**Investors**: Daphni, Eren Groupe, and Polytechnique Ventures. **What's next:** The company has plans to start developing heat pumps of different sizes to reach 20 MW by 2030. ![SELF & INNOV • La French Tech Bordeaux](https://www.frenchtechjournal.com/content/images/2024/04/data-src-image-e10809fd-7a4b-4151-9c21-1f4ac4fde098.png) **What:** [**Self & Innov**](https://www.self-and-innov.fr/?ref=frenchtechjournal.com)a SaaS fintech specializing in innovation financing consulting for SMEs. **Why:** to make innovation aids more accessible to SMEs by accompanying them at each step of their financing application process (eligibility diagnosis, tax credit calculation, dossier drafting and construction etc.). **Funding:** €1.5 million **Who:** Co-Founders [Matthieu Bacquin](https://www.linkedin.com/in/matthieubacquin/?ref=frenchtechjournal.com) & [Sylvie Camacho](https://www.linkedin.com/in/sylvie-camacho-conseil-innovation/?ref=frenchtechjournal.com)[](https://www.linkedin.com/in/olgachashchina/overlay/about-this-profile/?ref=frenchtechjournal.com)**Investors**: GSO Innovation, Crédit Agricole Aquitaine Expansion **What's next:** The startup plans to enrich its offer and fuel its nationwide expansion with the opening of 8 new offices over the next 18 months. ![Découvrez l'histoire de la startup Libu | J'❤️ les startups](https://cdn.jaimelesstartups.fr/wp-content/uploads/2019/09/LIBU_COLOR_300x300.png) **What:** [**Libu**](https://libu.fr/?ref=frenchtechjournal.com)**,** a startup specializing in biomimetic lighting reproducing the natural light of the sun for use in workplaces. **Why:** To allow the body to naturally resynchronize with its internal biological rhythms, generating benefits validated by scientific studies, including a 25% reduction in perceived stress. **Funding:** €1 million **Who:** Co-Founders [Tinou Seguin ](https://www.linkedin.com/in/tinou-seguin-077b86142/%60?ref=frenchtechjournal.com)& [Manon Loustau](https://www.linkedin.com/in/manon-loustau-297094150/?ref=frenchtechjournal.com)[](https://www.linkedin.com/in/olgachashchina/overlay/about-this-profile/?ref=frenchtechjournal.com)**Investors**: 3A Venture, Arts et Métiers Business Angels, Synergence, Adour Business Angels & INSEAD Business Angels **What's next:** The cash will be used to accelerate the large-scale commercialization of Libu's solutions, which adapt equally well in the workplace, at home for telecommuting, or even for nomadism, improving the health and performance of employees. ![VIQTHOR | LinkedIn](https://www.frenchtechjournal.com/content/images/2024/04/data-src-image-97915fb5-447c-4046-85e9-23c193fe3b6f.jpeg) **What:** [**Viqthor**](https://viqthor.com/?ref=frenchtechjournal.com), a Deeptech company specializing in electronics and photonics for use in quantum computers. **Why:** To help scale quantum computing so that it becomes useful for humanity. **Funding:** €1 million ‌‌ **Who:** Co-founders are [Guillaume De Giovanni,](https://www.linkedin.com/in/guillaume-de-giovanni-85bb791/?ref=frenchtechjournal.com) Arnaud Perrin, and [Jérémie Theze](https://www.linkedin.com/in/j%C3%A9r%C3%A9mie-th%C3%A9z%C3%A9-160a81196/?ref=frenchtechjournal.com) ‌**Investors**: Better Angle, Apok Invest, iXCore, Business Angels **What's next:** The funding will help the startup to advance its R&D efforts and bring a prototype to the market.