Best Energy Efficiency Tech Companies in Norway
The 48 best Energy Efficiency Tech companies in Norway in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: MIRIS.
Our analysis of 50 Energy Efficiency Tech companies
$7.8b in tracked funding; 86% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Efficiency Tech companies in Norway
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | MIRIS Developer of sustainable real estate development solutions | $124M | 73 mo ago | Funding Raised | Jan-Gunnar Mathisen Founder & CEO | 2016 | — | — | — |
| 2 | Heimdall Power Provider of real-time dynamic line rating and grid monitoring solutions | $29M | 24 mo ago | Series B | Jorgen Festervoll CEO | 2015 | WordPressMySQLRedis+36 | 19 patents Installation and monitoring of overhead power line equipment and grid control systems. | 2 partnerships |
| 3 | Defigo Provider of an IoT-enabled access control system for commercial buildings | $4M | 54 mo ago | Seed | Joachim Stray Co-Founder & Group CEO | 2014 | WebflowVimeoTypekit+22 | — | — |
| 4 | Crayonano Provider of graphene based nanowires for UV LEDs | $3M | 48 mo ago | Funding Raised | Knut Sandven Co-CEO | 2012 | — | 67 patents Nanowire-based UV optoelectronic semiconductor devices and related contact structures | — |
| 5 | Airtight Sensor based solution for detailed analysis of energy waste for individual buildings | $2M | 96 mo ago | Acqui-Hired | Bjørnar Lie Co-Founder & CTO | 2016 | — | 3 patents Detecting building envelope air leaks and automating ventilation control systems. | — |
| 6 | Viva Smart Home Provider of AI-enabled home automation & security solutions | $2M | 115 mo ago | Deadpooled | — | 2012 | — | — | — |
| 7 | Olvondo Technology Manufacturer of high-temperature industrial heat pumps. | $1M | 91 mo ago | Funding Raised | Stefano Vittor CEO & Managing Director | 2016 | — | — | — |
| 8 | Entelios Demand response management | — | 186 mo ago | Acquired | — | 2010 | SanityNode.jsSvelteKit+12 | — | 2 partnerships |
Top 8 Energy Efficiency Tech companies in Norway
#1
Series B · Bergen, Vestland · founded 2015 · 20 employees$28.6Mraised▾
Provider of real-time dynamic line rating and grid monitoring solutions. The company offers technology to unlock capacity and meet growing demand on power grids. It provides tools for mitigating outages with forecasting and flexibility. The company’s technology detects environmental conditions to protect and reinforce grid assets. It also offers solutions to simplify compliance within transmission and distribution operations.
- Jul 2024Series B$25M
- Oct 2019Series A$3.6M
- Apr 2018Seed—
- Aug 2017Seed—
#2
Funding Raised · Oslo, Oslo · founded 2016$123.9Mraised▾
Developer of sustainable real estate development solutions. It focuses on environmentally friendly and socially responsible building practices. This includes implementing energy-efficient technologies, using sustainable materials, and creating inclusive living spaces. The company aims to minimize environmental impact while maximizing economic viability and social benefits. Its approach considers economic, environmental, and social factors to ensure long-term sustainability and well-being. The developer integrates innovative technologies and designs to create buildings and urban spaces that are environmentally sound, economically viable, and socially inclusive.
- Jul 2020Conventional Debt$112.8M
- Oct 2019Conventional Debt$11.1M
#3
Funding Raised · Trondheim, Trondelag · founded 2012 · 24 employees$2.5Mraised▾
Provider of graphene based nanowires for UV LEDs. The technology could find use in solar cells and LEDs in general, the company is targeting the UV LED market due to significant benefits. Nanowires on graphene enable critical improved internal quantum efficiency, operating lifetime, and reliability, especially for deep UV.
- Jul 2022Grant (prize money)$51.1K
- Apr 2021Grant (prize money)$2.4M
- Oct 2020Grant (prize money)—
- Apr 2020Grant (prize money)$138K
#4
Seed · Oslo, Oslo · founded 2014 · 13 employees$4.4Mraised▾
Provider of an IoT-enabled access control system for commercial buildings
- Jan 2022Seed$4.4M
#5
Acqui-Hired · Oslo, Oslo · founded 2016 · 5 employees$2Mraised▾
Airtight has developed a solution for establishing a detailed analysis of energy waste for individual buildings. The solution comprises of proprietary sensors that the company claims are capable of measuring the actual leakage of energy and moisture through the wall minute by minute. On sensors being placed at strategic places in the building, it analyzes where the major leakages are and how big they are. The solution uses real-time monitoring and machine learning for recommending adjustments to the heating and cooling systems. The company has been incubated at StartupLab in Oslo and its solution has been awarded the Seal of Excellence under the EU’s Horizon 2020 SME Instrument Phase 2.
- Aug 2018Grant (prize money)$2M
#6
Deadpooled · Oslo, Oslo · founded 2012 · 8 employees$1.7Mraised▾
Provider of AI-enabled home automation & security solutions. The device uses smart algorithms, GPS tracking, video surveillance, and intelligent sensors to help control and monitor the home. Their product mix contains smart plugs to control and monitor the plugged-in device. It uses GPS and sensors to automatically adjust lights and heating. Offers a smartphone application to monitor and control from outside the home.
- Jan 2017Series A$1.3M
- Mar 2015Seed$429.1K
#7
Funding Raised · Holmestrand, Vestfold and Telemark · founded 2016 · 11 employees$1.2Mraised▾
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- Jan 2019Grant (prize money)$1.2M
#8
Acquired · Kristiansand, Agder · founded 2010 · 29 employees—raised▾
Entelios is a partner for energy companies to set up their own Demand Response programs with their commercial, industrial and institutional customers. Entelios offers automated industrial Demand-Response-as-a-Service™ (DRaaS™) to shift the peak demand to renewable energy. Entelios is acquired by Enernoc and its site is getting redirected to Enernoc.
- Feb 2011Series A—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Efficiency Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Energy Efficiency & Buildings is moving in Norway
A read on the academic research around Energy Efficiency & Buildings — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 225 Norway-affiliated papers.
- Norwegian University of Science and Technology118
- SINTEF35
- University of Stavanger17
- National Institute of Technology14
- Norconsult8
- Energy management7
- Heat pump5
- Energy management system5
- Microgrid4
- Heat exchanger3
- Heat pump13→54
- Thermal energy storage2→15
- Electricity1→11
- Renewable energy2→12
- Energy management2→11
- Heat pump1→10
- Groundwater2→5
Where energy efficiency 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.