Best Energy Companies in Barcelona, Spain
The 34 best Energy companies in Barcelona, Spain in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: SolarMente.
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.
Ranked: Best Energy companies in Barcelona
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SolarMente Provider of solar panel installation services | $55M | 31 mo ago | Seed | Victor Gardrinier Co-Founder | 2019 | WordPressMySQLPHP+30 | — | — |
| 2 | Holaluz Power retailing company | $28M | 23 mo ago | Public | Oriol Vila Co-Founder & CEO | 2010 | Node.jsGoogle MapsVue.js+26 | — | — |
| 3 | Sunhero Provider of solar panel installation services | $15M | 36 mo ago | Series A | Stefan Braun Co-Founder | 2021 | SentryUnbounceTypeScript+24 | — | — |
| 4 | Solfy Online marketplace for self-consumption of solar energy, enabling individuals and businesses to produce their… | $1M | 13 mo ago | Seed | Guillermo Gallegos Co-Founder | 2022 | WordPress Block EditorWordPressMySQL+35 | — | — |
| 5 | SIARQ Developer of solar lighting solutions with integrated environmental sensors | $483K | 97 mo ago | Funding Raised | Alessandro Caviasca Co-Founder & CEO | 2003 | — | — | — |
| 6 | teknoCEA Manufacturer of power converter, control board, testing & repairing equipment | $216K | 34 mo ago | Seed | — | 2012 | — | — | — |
| 7 | Proton Future Developer of solar renewable energy power projects | $109K | 77 mo ago | Funding Raised | Miquel Jove CEO | 2015 | — | 22 patents Patents concentrated in chemistry & materials | — |
| 8 | Napptilus Battery Labs Provider of energy storage solutions | — | 43 mo ago | Seed | Jordi Sala Co-Founder & CTO | 2021 | — | 5 patents Advanced high‑power electrode materials and cell stacking for electrochemical energy storage | — |
Top 12 Energy companies in Barcelona
#1
Public · Barcelona, Catalonia · founded 2010 · 287 employees$28Mraised▾
Holaluz supplies electric power to residential and small-medium enterprises in Spain. Claims to manage complete services through online and supply 100% renewable energy. Purchases power from renewable projects through physical bilateral contracts. Other services are natural gas supply, installation of e-vehicle charging station, installation of solar system and energy storage systems.
- Nov 2024Post IPO$15.8M
- Jan 2022Post IPO$7.6M
- Sep 2021Grant (prize money)$138.3K
- Feb 2016Series A$4.3M
#2
Seed · Barcelona, Catalonia · founded 2022 · 8 employees$1.1Mraised▾
It is a company that operates as a marketplace for the self-consumption of solar energy. They provide personalized photovoltaic installation services for homes and businesses.
- Sep 2025Seed$4.7M
- Sep 2023Seed$1.1M
- 2022Seed$1.1M
#3
Seed · Barcelona, Catalonia · founded 2019 · 32 employees$55.2Mraised▾
Provider of solar panel installation services
- Mar 2024Seed—
- Apr 2023Seed$55.1M
- Sep 2021Seed$125K
- 2020Seed—
#4
Series A · Barcelona, Catalonia · founded 2021 · 94 employees$14.6Mraised▾
Provider of solar panel installation services
- Oct 2023Conventional Debt$3.2M
- Mar 2023Series A$10.6M
- Feb 2022Seed$4M
#5
Seed · Barcelona, Catalonia · founded 2012$215.7Kraised▾
Manufacturer of power converter, control board, testing & repairing equipment
#6
Funding Raised · Barcelona, Catalonia · founded 2003 · 15 employees$482.8Kraised▾
Developer of solar lighting solutions with integrated environmental sensors. The company provides urban solar lighting solutions, integrating environmental sensors for real-time data capture of air quality, noise levels, and UV radiation. It offers smart solar lighting technology and facilitates the creation of smart city infrastructure. The company's solutions also accommodate mobile technology integration for deploying networks. The company designs solar streetlights and offers remote monitoring systems.
- Sep 2018Grant (prize money)$58.1K
- Mar 2015Grant (prize money)$424.7K
#7
Funding Raised · Barcelona, Catalonia · founded 2015 · 7 employees$109.4Kraised▾
Provider of renewable energy services intended to leverage solar energy. The company's services involve the implementation of projects for the generation of electrical energy from solar energy or hydraulic energy, enabling clients to build and run renewable energy projects easily.
- Apr 2020Grant (prize money)$54.3K
- Dec 2019Grant (prize money)$55.1K
#8
Seed · Barcelona, Catalonia · founded 2021—raised▾
Operator of a clean energy platform intended to develop fast-charging and sustainable Lithium-free batteries to revolutionize the EV market. The company's platform offers a hybrid battery solution using carbon and organic waste nanomaterials, enabling people to access fast-charging electric batteries that charge in 5 minutes with an extended lifespan.
- Mar 2023Seed—
#9
Seed · Barcelona, Catalonia · founded 2019 · 8 employees—raised▾
Developer of smart energy system designed to offer local energy solutions. The company's system deals with batteries, from bringing them to maintaining them and connecting them to buildings, which removes the local congestion of power, enabling clients to enjoy an uninterrupted power supply at a lower cost.
#10
Acquired · Barcelona, Catalonia · founded 2000 · 159 employees—raised▾
Developer of wind and solar energy projects
- Sep 2021Seed—
#11
Seed · Barcelona, Catalonia · founded 2019 · 6 employees—raised▾
Developer of an AI-Powered energy efficiency analytics platform designed to learn the energy profile of building infrastructure to forecast its real energy demand. The company's SaaS solution uses self-learning algorithms to learn the energy profiles of a building in order to forecast its energy demand for an autonomous and optimized operation of the energy systems, along with predicting faults, thereby helping companies save money and contribute to a more sustainable world.
- Jul 2021Seed—
#12
Public · Barcelona, Catalonia · founded 1843 · 15374 employees—raised▾
Gas Natural Fenosa is a Spanish natural gas utility company. The company ditsributes natural gas to customers across Spain. The company also has operations across multiple countries in Europe and South America.
Funding & investor landscape
Notable founders
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
How research on Energy Storage in Barcelona is moving
A read on the academic research around Energy Storage in Barcelona — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 65 papers.
- Universitat de Barcelona34
- Institut de Ciència de Materials de Barcelona25
- Universitat Autònoma de Barcelona5
- Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona5
- Institut de Microelectrònica de Barcelona3
- Context (archaeology)4
- Electrochemistry3
- Etching (microfabrication)3
- Nanowire3
- Silicon nanowires3
- Renewable energy1→4
- Electrochemistry3
- Carnot cycle2
- Reliability (semiconductor)2
- Instrumentation (computer programming)2
- Task (project management)2
Common questions
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.