Radar · Energy in Ile-de-France
Best Energy Companies in Ile-de-France, France
The 47 best Energy companies in Ile-de-France, France in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals.
By Rohit KhannaTrends & Stories
47companies tracked
$0disclosed funding
0unicorns
—have raised
FLIAR INTELLIGENCE · ENERGY × ILE-DE-FRANCE
Our analysis of 441 Energy companies
$135.1b in tracked funding; 76% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
441companies analysed
76%cloud-native stacks
2025funding peak (by rounds)
8unicorns
2013median founding year
717kcombined LinkedIn audience
71%of audience held by top 3
2companies hiring publicly (12 mo)
Ranked: Best Energy companies in Ile-de-France
| # | Company | Disclosed funding | Stage | Employees | Founded | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | vallourec Vallourec is the world leader in premium tubular solutions primarily serving the energy markets | — | Public | 15,766 | 1899 | WordPressApple iCloud MailMySQL+22 | Top 5M | — | 2 partnerships · 1 expansion |
| 2 | rte france Leading European electricity transport company | — | Private | 9,500 | 2000 | LeafletMUIstyled-components+8 | Top 500k | — | — |
| 3 | endel engie Endel Engie is the industrial maintenance and related services. | — | Acquired | 6,000 | 2001 | WordPressMySQLPHP+9 | Top 50M | — | — |
| 4 | idex IDEX is the the third largest operator in both the district heating and energy efficiency services markets in… | — | Private | 5,700 | 1963 | DrupalPHPApache HTTP Server+13 | Top 5M | — | — |
| 5 | geoservices Geoservices in mud-logging, a critical niche business in drilling operations, and provides a number of… | — | Acquired | 5,000 | 1958 | — | — | 92 patents Gas extraction and analysis technologies for drilling mud and subsurface fluid monitoring | — |
| 6 | engie e&p international ENGIE EPI is a large global E&P business focused on North West Europe. | — | Acquired | 1,800 | 2004 | — | — | 668 patents Gas sampling, measurement, liquefaction, and conditioning technologies for energy and industrial gases | — |
| 7 | esso ESSO specializes in the refining and distribution of oil products. | — | Public | 1,552 | 1902 | — | — | — | — |
| 8 | butagaz Butagaz is a privately held French natural gas distributor company. | — | Acquired | 1,000 | 1931 | SuluPHPSalesforce+26 | Top 500k | 17 patents Semi‑automatic gas cylinder storage, dispensing, and safety‑fuse systems for industrial gases. | 1 award |
Top 1 Energy companies in Ile-de-France
#1
Funding Raised · Puteaux, Ile-de-France · founded 1978 · 105 employees—raised▾
Funding Raised · Puteaux, Ile-de-France · founded 1978 · 105 employees
ATEE Association Technique Energie Environnement comprenant plusieurs activités: Energie Plus, magazine spécialisé sur les énergies 4 Clubs professionnels: Club Biogaz Club Cogénération Club Certificats d'Economies d'Energies Club Stockage de l'Energie
LinkedIn Pulse recent public activity · Jul 2026
Audience: 21k LinkedIn followers — 2.9% of this cohort's audience
Tech stack
Apache Http ServerCart FunctionalityDebianDrupalGoogle Font ApiJquery
Funding & investor landscape
$0total disclosed funding
0companies funded
0disclosed rounds
0rounds last 90 days
Most active investors
Prism market signals · France · country-scoped Prism corpus, 2,070,520 docs
Market landscape — 10 sub-themes by coverage
Share of Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH SIGNALS · France
How research on Grid Energy Storage is moving in France
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 899 France-affiliated papers.
research sentiment over time
201020202026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and intensifying — the enthusiastic (strongly-positive) share moved 52% → 59% across 2010–2026.
top research entities
- Centre National de la Recherche Scientifique303
- École Polytechnique Fédérale de Lausanne72
- Université Grenoble Alpes43
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives39
- Réseau sur le Stockage Electrochimique de l'énergie36
leading researchers
Abdelmounime El Magri · Patrice Simon · Mamadou Baïlo Camara · Brayima Dakyo · Fei Gao · Rémy Rigo‐Mariani · Rachid Lajouad · Ilyass El Myasse
▲
Breakthroughs241 · 27%
▲ 14%→28% share
▲2.0× share momentum1 median citations93% since 2021mostly methods-led
Breakthroughs are rising (14%→28% of field), led by Battery (electricity).
rising sub-themes (early→recent)
- Battery (electricity)2→41
- Supercapacitor4→40
- Electrolyte1→33
- Cathode1→29
- Electrode1→28
Newly emergingElectrochemistry 0→44 · Renewable energy 0→27 · Anode 0→21
Landmark Visualization of O-O peroxo-like dimers in high-capacity layered oxides for Li-ion batteries · 824 cites
◆
Advancements475 · 53%
▼ 66%→54% share
▼0.8× share momentum1 median citations91% since 2021mostly methods-led
Advancements are cooling (66%→54% of field), led by Battery (electricity).
rising sub-themes (early→recent)
- Battery (electricity)8→97
- Renewable energy10→82
- Photovoltaic system4→54
- Electrolyte1→45
- Microgrid4→47
Newly emergingThermal energy storage 0→38 · Anode 0→23 · Energy (signal processing) 0→23
Landmark Energy Management and Operational Planning of a Microgrid With a PV-Based Active Generator for Smart Grid Applications · 977 cites
▼
Concerns100 · 11%
▼ 17%→10% share
▼0.6× share momentum1 median citations82% since 2021mostly empirical
Concerns are cooling (17%→10% of field), led by Renewable energy.
rising sub-themes (early→recent)
- Renewable energy3→24
- Photovoltaic system1→12
- Electrochemistry1→10
- Electrolyte2→9
- Cathode1→8
Newly emergingBattery (electricity) 0→21 · Thermal energy storage 0→8 · Energy (signal processing) 0→7
Landmark Pseudocapacitive oxide materials for high-rate electrochemical energy storage · 5,233 cites
RESEARCH HOTSPOTS · France
Where energy storage is researched across France
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Paris198 · +0.51
Grenoble66 · +0.40
Toulouse35 · +0.51
Lyon28 · +0.49
Strasbourg24 · +0.65
Marseille6 · +0.48
PATENT SIGNAL · France
Who's filing energy storage patents in France
France energy storage patent filing is accelerating — 712 filings from 363 assignees (2016–2025), led by BLUE Solutions, Commissariat Energie Atomique, Peugeot Citroen Automobiles; annual filings 76→92.
712 filings363 assigneespeak 98/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- BLUE Solutions181
- Commissariat Energie Atomique86
- Peugeot Citroen Automobiles74
- Batscap68
- Valeo Systemes Thermiques64
- Valeo Equip Electr Moteur52
- Centre NAT RECH Scient41
- Renault SAS39
Common questions
How many Energy companies are there in Ile-de-France, France?
Radar tracks 47 indexable Energy companies headquartered in Ile-de-France, France that meet our profile-completeness bar.
What is the total funding raised by Energy companies in Ile-de-France, France?
The Energy companies in Ile-de-France, France on this list have raised a combined $0 in disclosed equity funding across 0 funded companies.
Which is the highest-funded Energy company in Ile-de-France, France?
Funding figures are not yet disclosed for Energy companies in Ile-de-France, France.
How many Energy companies in Ile-de-France, France are funded?
0 of the 47 Energy companies in Ile-de-France, France on this list have disclosed at least one equity funding round.
How many Energy unicorns are there in Ile-de-France, France?
None of the Energy companies in Ile-de-France, France on this list currently has a disclosed valuation of $1B or more.
Who are the top investors in Ile-de-France, France Energy companies?
The most active investors in Ile-de-France, France Energy companies on this list include EQT, Isatis Capital.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.