NRGYS
Agir ensemble pour la performance... BE thermique, fluides et environnement, au service des constructeurs/promoteurs
71 employees · est. 2005 · Nantes, France
NRGYS is the older company (2008 vs 2005); Effy is the larger of the two.
Side-by-Side Comparison
| Metric | Effy | NRGYS |
|---|---|---|
| Founded | ||
| Founded | 2008 | 2005 older |
| Headquarters | ||
| Headquarters | Paris, France | Nantes, France |
| Employees | ||
| Employees | 314 larger | 71 |
| Industry | ||
| Industry | Energy | Analytics, Construction |
| Funding Stage | ||
| Funding Stage | Unknown | Not tracked yet |
| Total Funding | ||
| Total Funding | $22.00M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 1 | Not tracked yet |
| Services | ||
| Services | Energy Audits, Home Insulation, Heating System Installation, Solar Panel Installation, Financial Aid Simulation, Project Estimation | Not tracked yet |
| Target Customers | ||
| Target Customers | Homeowners, Families, Property Developers | Not tracked yet |
| Taxonomy | ||
| Taxonomy | Energy Efficiency, Home Renovation, Sustainable Housing, Customized Renovation, Artisan Network, Energy Transition, Insulation Solutions, Solar Energy, Heat Pumps, Comfort Improvement, Environmentally Friendly, Residential Heating, Energy Savings, Renewable Energy Solutions, Building Efficiency | Thermal Studies, Energy Performance, Renovation Projects, Energy Audits, Building Design, Energy Optimization, Fluid Studies, Environmental Sustainability, Building Intelligence, Construction Consulting, Sustainable Architecture, Building Technology, Independent Consultancy |
| Website | ||
| Website | effy.fr | nrgys.fr |
About Effy
Effy, renowned for its slogan "Effy, spécialiste de l’efficience énergétique. 🏠", has established itself as a leader in the energy sector since its founding in 2008. Headquartered in France, the company is dedicated to transforming homes into efficient and sustainable spaces, leveraging over 17 yea...
About NRGYS
NRGYS is an independent consulting firm based in France, specializing in energy performance, fluids, and building intelligence for residential and commercial spaces. Founded in 2005, the company focuses on providing tools, advice, and expertise for the design and development of various projects, inc...
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Funding, hiring, leadership and stack changes at Effy and NRGYS — by email.
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Compiled from the BounceWatch company index. We last looked at Effy on 12 Mar 2026, and NRGYS on 15 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.