Best Energy Tech Companies in Viken, Norway
The 39 best Energy Tech companies in Viken, Norway in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: eSmart Systems.
Our analysis of 287 Energy Tech companies
$109.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Tech companies in Viken
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | eSmart Systems Provider of virtual grid asset inspection and digital inventory solutions | $136M | 22 mo ago | Series B | Knut Gustavsen Co-Founder | 2012 | — | 2 patents Machine learning data classification using dynamic vector partitioning and voting | — |
| 2 | EnergyNest Developer of thermal energy storage systems for industrial heat applications | $131M | 51 mo ago | Series D | — | 2011 | WordPressMySQLPHP+30 | 69 patents Modular high‑temperature thermal energy storage systems using molten‑salt/heat‑battery technology. | 1 job opening · 1 partnership |
| 3 | ZEG Provider of hydrogen generation solutions for natural gas and biogas | $19M | 47 mo ago | Series B | Arild Selvig Chief Executive Officer | 2008 | WordPress Block EditorWordPressMySQL+16 | — | — |
| 4 | Cenate Manufacturer of silicon anode materials for lithium-ion batteries | $6M | 48 mo ago | Series A | Martin Kirkengen Co-Founder & CTO | 2015 | — | 26 patents Silicon‑carbon composite particles for high‑performance lithium‑ion battery anodes | — |
| 5 | Prediktor Offering IoT solutions for industries to increase efficiency, sustainability and operational scalability | $3M | 84 mo ago | Acquired | Steinar Saeid Co-Founder & CTO | 1995 | — | — | — |
| 6 | Visavi Software solutions provider for the oil & gas industry | $2M | 91 mo ago | Acquired | Qystein Co-Founder | 2014 | — | — | — |
| 7 | Langlee Wave Power Near shore oscillating WEC | $1M | 178 mo ago | Deadpooled | Julius Espedal Co-Founder & CTO | 2006 | — | 19 patents Offshore wave energy conversion systems with integrated generators for marine power generation | — |
| 8 | Hystorsys Technology solutions provider for storing hydrogen | $48K | 105 mo ago | Funding Raised | Jon Eriksen CEO | 2005 | — | 2 patents Hydrogen storage systems for on‑board fuel cell applications | — |
Top 12 Energy Tech companies in Viken
#1
Series B · Halden, Viken · founded 2012 · 69 employees$136Mraised▾
Provider of virtual grid asset inspection and digital inventory solutions. The company offers image-based digital inventory and grid asset intelligence services. It delivers digital approvals and access permits. The company partners with power grid operators to advance asset risk mitigation strategies. It helps identify vulnerabilities and uses data analytics to locate assets in high-risk zones. The company equips field teams with visual and risk-based data before deployment. It offers inspection-as-a-service and software-as-a-service for grid digitalization.
#2
Series D · Asker, Viken · founded 2011 · 10 employees$131.1Mraised▾
Developer of thermal energy storage systems for industrial heat applications. These systems convert electricity into heat to supply steam or process heat for manufacturing operations. The technology utilizes solid-state storage modules to retain thermal energy, allowing for the delivery of heat on demand. This infrastructure integrates with existing boiler setups to provide a backup or primary heat source. The systems are designed to manage energy consumption by utilizing electricity when market prices are favorable. The modular units are constructed to handle high temperatures and pressures required for various industrial processes.
- May 2022Grant (prize money)$53.8K
- Apr 2021Series D$131.1M
- Dec 2019Grant (prize money)$1.6M
- Mar 2019Grant (prize money)—
#3
Series B · Fornebu, Viken · founded 2008 · 19 employees$19Mraised▾
Provider of hydrogen generation solutions for natural gas and biogas. It offers ZEG Clean hydrogen solution that produces hydrogen from natural gas using ZEG ICC technology, ZEG Climate plus solution that is based on biogas, enabling the production of hydrogen and electric power.
- Sep 2022Series B$19M
- Jan 2018Grant (prize money)$204.9K
- Mar 2014Grant (prize money)—
#4
Series A · Tomter, Viken · founded 2015 · 16 employees$6Mraised▾
Manufacturer of silicon anode materials for lithium-ion batteries. It develops and produces silicon-based nano-composite anode materials that replace graphite in lithium-ion batteries, helping battery makers increase energy density, reduce size and weight, lower carbon footprint, and improve performance for electric vehicles and other energy-storage applications.
- Sep 2022Grant (prize money)$2M
- Sep 2022Series A$4M
#5
Acquired · Fredrikstad, Viken · founded 1995 · 40 employees$2.8Mraised▾
Offering IoT solutions for industries to increase efficiency, sustainability and operational scalability. Its software provides full visibility into the operation in real-time. Its solutions include PView, an asset management platform, Visual Insight, a real-time, cross-vendor data conversion dashboard, Synaptics, to standardises industrial data sources, and Edge, for secure and safe data collection and processing. It provides solutions for renewable energy and oil & gas industries.
#6
Acquired · Halden, Viken · founded 2014 · 38 employees$1.8Mraised▾
Visavi is a software solutions provider for the oil & gas industry. It offers solutions for visualization of operations and dependencies of the workflow. Enable users to have an overview of information through data visualization for making decisions. Some of their clients include Neptune Energy, Borregaard, and others.
- Jan 2019Seed$1.8M
#7
Deadpooled · Asker, Viken · founded 2006$1Mraised▾
Langlee Wave Power designs and manufactures wave power converters. The company offers Langlee Robusto, a semi-submersible floating installation that converts the wave energy directly to electricity. Their wave energy converter (WEC) is a floating device utilizing the horizontal wave movements by vertical water wings and built with steel pipes which can withstand marine environments.
- Oct 2011Grant (prize money)$250K
- Sep 2011Seed$1M
- 2010Grant (prize money)$34K
#8
Seed · Jessheim, Viken · founded 2020 · 5 employees$20Kraised▾
Provider of intelligent subsea imaging solution. It provides data across a range of applications from de-risking renewable site development, to identification of carbon capture storage locations & near field exploration.
- 2023Seed$20K
#9
Funding Raised · Kjeller, Viken · founded 2005 · 1 employees$47.7Kraised▾
HYSTORSYS is a technology solutions provider for storing hydrogen. Uses metal hydrides for compression and storage of hydrogen. Claims to use waste gas from industrial processes for running the operations. Features of metal hydrates include adsorbing hydrogen when they are cooled and releasing hydrogen when they are heated.
- Dec 2017Grant (prize money)$23.8K
- Jan 2017Grant (prize money)$23.9K
#10
Seed · Fornebu, Viken · founded 2019 · 4 employees—raised▾
Producer of renewable aviation fuel
#11
Acquired · Asker, Viken · founded 2007 · 53 employees—raised▾
4Subsea is a Norwegian company focused on providing technology solutions to the oil and gas industry. The company's solutions help operators maintain and optimize production from subsea oil fields. The company provides monitoring solutions and software for flexible risers, well intervention and wellhead systems. The company also offers software solutions for monitoring the performance of the oil fields. The company offers its products and services for subsea oil and gas fields and offshore wind farms.
- Jul 2014Series A—
#12
Acquired · Asker, Viken · founded 2004 · 127 employees—raised▾
iSurvey is a survey and positioning services provider. It offers services such as ROV operations support, cable installation support, seabed mapping, seabed inspection, subsea structure installation services and other support services for international marine construction projects, rig and mooring operations and seabed surveys. It offers services for global oil and gas, telecommunications and offshore renewable energy sectors.
- Apr 2013PE—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Grid Energy Storage is moving in Norway
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 269 Norway-affiliated papers.
- Norwegian University of Science and Technology78
- SINTEF62
- University of South-Eastern Norway19
- University of Oslo12
- Institute for Energy Technology9
- Electrochemistry1→5
- Renewable energy36
- Battery (electricity)32
- Thermal energy storage24
- Power (physics)20
- Process engineering18
- Battery (electricity)1→10
Where energy storage is researched across Norway
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.
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.