Radar · Energy Tech in South Holland
Best Energy Tech Companies in South Holland, Netherlands
The 108 best Energy Tech companies in South Holland, Netherlands in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Barge Master.
By Rohit KhannaTrends & Stories
108companies tracked
$344.4Mdisclosed funding
0unicorns
40have raised
FLIAR INTELLIGENCE · ENERGY TECH × SOUTH HOLLAND
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.
287companies analysed
82%cloud-native stacks
2025funding peak (by rounds)
32unicorns
2018median founding year
210kcombined LinkedIn audience
22%of audience held by top 3
6companies hiring publicly (12 mo)
Ranked: Best Energy Tech companies in South Holland
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Barge Master Wave compensated platform for the marine and offshore construction industry | $49M | 44 mo ago | — | Martijn Koppert Founder & CEO | WordPressMySQLPHP+14 | Top 50M | 42 patents Patents concentrated in transport & manufacturing processes | 1 launch |
| 2 | ROCSYS Provider of charging station automation solutions 64Patents top 22%Funding top 27%Talent top 28%Moat top 32% All 11 signals ▾Patentstop 22% Fundingtop 27% Talenttop 28% Moattop 32% Innovationtop 33% Growthtop 35% Newstop 39% Techtop 41% Producttop 46% Globalbottom 43% Marketbottom 41% Patents: 88 patents matched (strict assignee match) · 81 filings since 2022 vs 7 in 2017-21 Funding: Raised $42.7M across 4 rounds · 4 rounds over 7 yrs (0.6/yr) rank vs industry peers · Fliar Intelligence Index 64/100 | $43M | 1 mo ago | 46 | Murthy Chintalapati Co-Founder | WordPressApple iCloud MailMicrosoft 365+20 | Top 10M | 88 patents Robotic autonomous EV charging systems: alignment, manipulation, and control of charger connectors | 1 job opening · 1 expansion |
| 3 | Battolyser Systems Manufacturer of electrolyzers | $33M | 21 mo ago | 47 | Fokko Mulder Co-Founder | Cart FunctionalitySquarespace CommerceSquarespace+14 | Top 10M | — | 1 launch |
| 4 | Leydenjar Technologies Provider of silicon anode technology for lithium-ion batteries | $28M | 4 mo ago | 70 | Christian Rood Co-Founder & CEO | WordPressApple iCloud MailMicrosoft 365+19 | Top 10M | — | 1 launch · 2 expansions · 1 award |
| 5 | Samotics Provider of condition monitoring solutions for industrial assets and equipment 78AI top 20%Tech top 25%Talent top 28%Funding top 35% All 9 signals ▾AItop 20% Techtop 25% Talenttop 28% Fundingtop 35% Growthtop 35% Marketbottom 49% Productbottom 45% Globalbottom 38% Newsbottom 24% AI: Classified as an AI company Tech: 49 technologies across 5/8 capability areas · Cloud: Amazon S3, Amazon Ses rank vs industry peers · Fliar Intelligence Index 78/100 | $23M | 16 mo ago | 104 | Simon Jagers Co-Founder | WordPressApple iCloud MailGoogle Workspace+37 | Top 10M | — | 2 partnerships |
| 6 | GBM Works Wind turbine foundation developer | $22M | 8 mo ago | 6 | — | WebflowVimeoGSAP+18 | Top 50M | 27 patents Offshore wind turbine monopile foundations and fluidised tubular pile installation systems | — |
| 7 | Maeve Aerospace Manufacturer of electric aircraft | $16M | 9 mo ago | 32 | Jan Heinen Co-Founder & CEO | Node.jsTailwind CSSReact+10 | Top 50M | — | — |
| 8 | Maxwell and Spark Provider of lithium ion energy storage solutions | $15M | 9 mo ago | 65 | Michael Kann Founder | WordPress Block EditorElementorWordPress+32 | Top 50M | — | 1 partnership · 1 expansion · 1 award |
| 9 | Nowi Energy Wireless charging sensor infrastructure for small IoT devices | $13M | 79 mo ago | 40 | Omar Link Co-Founder | — | — | 31 patents Patents concentrated in computing, sensing & instrumentation | — |
| 10 | AQUABATTERY Developer of long-duration energy storage solutions using saltwater-based flow battery technology | $12M | 26 mo ago | — | Emil Goosen Product & Co-founder at Aquabattery | HubSpot CMS HubMicrosoft AdvertisingHubSpot+13 | Top 10M | 4 patents Advanced redox flow battery boosting and pH‑gradient energy storage technologies | — |
| 11 | Gradyent Technologies Provider of AI & cloud-based solutions to optimize heat network | $12M | 14 mo ago | 44 | Robert Vrancken Founder & CTO | StoryblokNode.jsTailwind CSS+23 | Top 50M | — | 1 expansion |
| 12 | Powall Provider of sustainable powders for batteries | $12M | 24 mo ago | 24 | Roderik Colen CEO | — | — | — | — |
| 13 | Physee Provider of transparent BIPV solar panels | $12M | 60 mo ago | 36 | — | — | — | 38 patents Eu2+-doped luminescent nanoparticle coatings for greenhouse glazing and solar concentrators | 1 launch |
| 14 | Check App-based platform offering electric-scooter sharing services | $11M | 52 mo ago | 107 | Marco Knitel Managing Director & Cofounder | WordPressPleskMySQL+18 | Top 5M | — | 1 expansion |
| 15 | Spotr Developer of AI-driven building profiles through imagery and data analysis | $8M | 28 mo ago | 46 | Marieke Dijksma Cofounder & Product developer | WebflowApple iCloud MailMicrosoft 365+19 | Top 10M | — | — |
| 16 | Jedlix App-based solution to integrate EV charging with renewable energy production | $6M | 55 mo ago | 29 | Jorg van Heesbeen Co-Founder | WebflowHubSpotcore-js+18 | Top 50M | — | — |
| 17 | Skoon Developer of software platforms for managing distributed energy grid flexibility | $6M | 32 mo ago | 25 | Peter Paul Co-Founder& CEO | WordPressMySQLPHP+38 | Top 10M | — | — |
| 18 | Solar monkey Provides software for solar installation | $5M | 45 mo ago | 55 | — | PythonDjangoGoogle Cloud+6 | Top 5M | — | — |
| 19 | zepp.solutions Developer of PEM hydrogen fuel cell system | $3M | 25 mo ago | 14 | Jonas Brendelberger Co-Founder | — | — | — | 1 partnership |
| 20 | Newton Energy Solutions Manufacturer of energy storage solutions | $3M | 25 mo ago | 6 | Martin Mohana Founder and Managing Director | — | — | 7 patents Thermal energy storage control and sensible heat storage devices for hot water systems | 1 job opening · 1 launch |
| 21 | Orbital Eye Pipeline monitoring using satellite radar images | $2M | 30 mo ago | 18 | Andre Bos Co-Founder | — | — | — | — |
| 22 | RanMarine Technology Developer of autonomous aquatic robots for waste removal and water monitoring | $2M | 44 mo ago | 38 | — | WordPressMySQLPHP+29 | Top 10M | — | — |
| 23 | BAQME App-based platform for renting electric cargo bikes | $1M | 42 mo ago | 9 | Souren Arakelian Co-Founder | WordPressMySQLPHP+16 | Top 5M | — | — |
| 24 | Scoozy Electric mobility-aid for differently-abled | $1M | 33 mo ago | 6 | — | OdooPostgreSQLFirebase+15 | Top 5M | 6 patents Enhanced mobility scooter chassis and ergonomics for suspension, steering, and accessibility | — |
| 25 | Proton Ventures Provider of consultancy support, project development management, and engineering services for the design and… | $1M | 56 mo ago | 64 | Paul Baan Chief Executive Officer | WordPressMySQLPHP+18 | Top 10M | 6 patents Ammonia-based hydrogen production: decomposition, separation, and high-efficiency gas mixing systems. | 1 job opening · 1 internship |
| 26 | Magneto Provider of magnetocaloric heat pumps for heating and cooling solutions for the renewable energy industry | $1M | 39 mo ago | 5 | — | — | — | 7 patents Magnetocaloric alloy materials for solid‑state refrigeration and cooling systems | — |
| 27 | Tarnoc Provider of heating solutions for home | $858K | 11 mo ago | — | Vincent Wijdeveld Co-Founder & CEO | WordPressMySQLPHP+20 | Top 5M | — | — |
| 28 | Nerdalize Cloud-based building energy management software solutions | $852K | 107 mo ago | 14 | — | — | — | 7 patents Thermal management modules for cooling heat‑generating electronic components | — |
| 29 | Plugwise IoT-enabled thermostat, plugs and switches for home energy monitoring | $412K | 123 mo ago | 10 | Reinder Sanders Co-Founder & CEO | Cart FunctionalityWooCommerceWordPress+26 | Top 5M | 2 patents Smart home energy monitoring and control for residential power distribution | — |
| 30 | SolarSwing Provider of solar-based products for use in buildings | $391K | 88 mo ago | 1 | Sam Kin Founder | — | — | — | — |
| 31 | TILER Developer of wireless charging systems for e-bikes and micro-mobility vehicles | $272K | 74 mo ago | 7 | Olivier Coops Co-Founder & CEO | WebflowVimeocore-js+20 | Top 50M | — | — |
| 32 | Synano Nanotechnology based cooling solutions | $271K | 64 mo ago | — | Sana Fateh Founder | — | — | — | — |
| 33 | Joulz Smart meter installation, meter reading & data management services provider | $190K | 119 mo ago | 535 | — | SentryLeafletstyled-components+23 | Top 5M | — | 2 job openings |
| 34 | Twister Developer of natural gas processing systems | $104K | 77 mo ago | 17 | John Young CEO | — | — | 212 patents Industrial cyclonic fluid separation systems for air, gas, and liquid processing | — |
Top 12 Energy Tech companies in South Holland
#1
Series A · Delft, South Holland · founded 2017 · 46 employees$42.7Mraised▾
Series A · Delft, South Holland · founded 2017 · 46 employees
Provider of charging station automation solutions. It offers self-parking and charging stations and enables an increase in electric vehicle charging station asset utilization.
Fliar Intelligence Index™ 64how this company ranks against its industry peers
Patents
top 22%Funding
top 27%Talent
top 28%Moat
top 32%Innovation
top 33%Growth
top 35%Patents: 88 patents matched (strict assignee match) · 81 filings since 2022 vs 7 in 2017-21 · Latest publication 2026
Funding: Raised $42.7M across 4 rounds · 4 rounds over 7 yrs (0.6/yr) · Last round Series A (Apr 2026)
Talent: 4 named leaders on record · 4 C-suite/founder profiles curated
Audience (LinkedIn): 7k LinkedIn followers — 3.4% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: Field Application Engineer
Activity (LinkedIn): 1 expansions announced in 12 mo
Funding rounds
- Apr 2026Series A$13M
- Jul 2023Series A$36.2M
- May 2021Series A$6.3M
- Nov 2019Seed$221.2K
Founders & team
Investors
FORWARD.one, Superangel, SEB Venture Capital, Graduate Ventures, European Investment Bank, UNIIQ
Tech stack
Apple Icloud MailContact Form 7Core-JsGoogle AnalyticsGoogle Hosted LibrariesGoogle Tag Manager
#2
Series A · Oegstgeest, South Holland · founded 2016 · 70 employees$27.9Mraised▾
Series A · Oegstgeest, South Holland · founded 2016 · 70 employees
Provider of silicon anode technology for lithium-ion batteries. The platform develops pure Silicon anodes that are being claimed to generate up to 50 percent more energy density in Li-ion battery cells. The company is currently optimizing the commercial thickness of the anode and fit with the best electrolyte, and proving their technology in pouch cells with 100 cycles.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 12k LinkedIn followers — 5.7% of this cohort's audience
Activity: 1 product launches · 1 awards · 2 expansions announced in 12 mo
Funding rounds
- Jan 2026Series A$9.3M
- Sep 2025Series A$15.2M
- Dec 2022Conventional Debt$31.6M
- Jul 2022Grant (prize money)$313.8K
Founders & team
Investors
DOEN Foundation, Somerset Capital Partners, Invest-NL, YARD ENERGY, Catalus Capital, BOM
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsHsts
#3
Series A · The Hague, South Holland · founded 2016 · 6 employees$22.2Mraised▾
Series A · The Hague, South Holland · founded 2016 · 6 employees
GBM Works is an EPC contractor that works in the domain of installation of offshore wind turbine foundations. Claims to be developing a new method of installing offshore wind turbine foundations called the GBM Pile Drill. They are currently developing their new prototype to further validate the technology.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 4k LinkedIn followers
Funding rounds
- Oct 2025Series A$7.3M
- Dec 2024Seed$6.3M
- Jun 2022Grant (prize money)$6.5M
- Feb 2021Grant (prize money)$2.2M
Investors
Rijksdienst voor Ondernemend Nederland, EIC Fund, Rotterdamse Havendraken, Katapult, Europa, Invest-NL
Tech stack
CdnjsCloudflareCloudflare Bot ManagementCloudflare TurnstileFlickityGoogle Font Api
#4
Series B · Delft, South Holland · founded 2020 · 32 employees$15.9Mraised▾
Series B · Delft, South Holland · founded 2020 · 32 employees
Manufacturer of electric aircraft. The company is involved in the design and development of ultra-silent operating electric aircraft with a seating capacity of 44 passengers. It uses battery technology to power its electric aircraft and provides rapid charging systems.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 13k LinkedIn followers — 6.2% of this cohort's audience
Activity: 3 partnerships (incl. Delta Air Lines) announced in 12 mo
Funding rounds
- Sep 2025Series B—
- Jul 2023Series B—
- Dec 2022Series B$15.9M
- Dec 2022Grant (prize money)$2.7M
Founders & team
Investors
EIC Fund, PVS Investments, SkyWest
Tech stack
Google AnalyticsHstsMicrosoft 365Next.JsNext.Js App RouterNode.Js
#5
Series B · Rotterdam, South Holland · founded 2017 · 65 employees$15Mraised▾
Series B · Rotterdam, South Holland · founded 2017 · 65 employees
Provider of lithium ion energy storage solutions. They specialize in lithium ion energy solutions for industrial mobility systems. They claim its products and solutions are designed to reduce costs and energy consumption for clients across various industries.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 4k LinkedIn followers
Activity: 1 partnerships · 1 awards · 1 expansions (incl. Clarver) announced in 12 mo
Funding rounds
- Sep 2025Series B$15M
- Sep 2021Seed—
Founders & team
Investors
Fairtree, Alantra, Chevron, Idemitsu Kosan
Tech stack
BluehostChart.JsCloudflareCloudflare Bot ManagementCookieyesCore-Js
#6
Series A · Leiden, South Holland · founded 2015 · 104 employees$23Mraised▾
Series A · Leiden, South Holland · founded 2015 · 104 employees
Provider of condition monitoring solutions for industrial assets and equipment. It offers predictive alerts and insights into asset health, performance, and efficiency. The company's technology uses electrical signature analysis to detect faults and optimize energy use. It provides early detection of equipment failures and helps prevent disruptions. The company also offers asset reliability services and failure detection capabilities.
Fliar Intelligence Index™ 78how this company ranks against its industry peers
AI
top 20%Tech
top 25%Talent
top 28%Funding
top 35%Growth
top 35%Market
bottom 49%AI: Classified as an AI company
Tech: 49 technologies across 5/8 capability areas · Cloud: Amazon S3, Amazon Ses · Observability: Microsoft Clarity, Sentry
Talent: 4 named leaders on record · 3 C-suite/founder profiles curated
Audience (LinkedIn): 15k LinkedIn followers — 7.0% of this cohort's audience
Activity (LinkedIn): 2 partnerships (incl. iPUMPNET) announced in 12 mo
Funding rounds
- Jan 2025Venture Debt$21M
- Sep 2022Series A—
- Dec 2021Series A$16.4M
- Mar 2021Series A$6M
Founders & team
Investors
UNIIQ, ENGIE Services, 83NORTH, ABB, European Investment Bank, InnovationQuarter
Tech stack
Amazon S3Amazon SesAmazon Web ServicesAngularApple Icloud MailCloudflare
#7
Series B · Rotterdam, South Holland · founded 2019 · 44 employees$12.2Mraised▾
Series B · Rotterdam, South Holland · founded 2019 · 44 employees
Provider of AI & cloud-based solutions to optimize heat network. It provides an artificial intelligence-based software-as-a-service platform for heat optimization. It also provides solutions for demand forecasting, flow simulation, and supply & demand matching.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 7k LinkedIn followers — 3.1% of this cohort's audience
Activity: 1 expansions announced in 12 mo
Funding rounds
- Apr 2025Series B$30.2M
- Aug 2022Series A$10.1M
- Jun 2020Seed$2.1M
Founders & team
Investors
Capricorn Partners, Helen Ventures, ENERGIIQ, Eneco, Blue Earth Capital, SEB Venture Capital
Tech stack
CloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsGoogle Font ApiGoogle Tag Manager
#8
Series A · Schiedam, South Holland · founded 2018 · 47 employees$33Mraised▾
Series A · Schiedam, South Holland · founded 2018 · 47 employees
Battolyser Systems is a manufacturer of battery-integrated electrolyzers. It uses alkaline electrolysis technology for hydrogen generation
LinkedIn Pulse recent public activity · Jul 2026
Audience: 14k LinkedIn followers — 6.9% of this cohort's audience
Activity: 1 product launches announced in 12 mo
Funding rounds
- Sep 2024Series A$33M
- Oct 2023Venture Debt$42.4M
Founders & team
Investors
GCC, Innovation Industries, Invest-NL, European Investment Bank, Delft Enterprises
#9
Series A · Delft, South Holland · founded 2019$858.2Kraised▾
Series A · Delft, South Holland · founded 2019
Provider of heating solutions for home. It develops a heat pump technology that works without an outdoor unit and is connected to the existing climate system (radiators).
LinkedIn Pulse recent public activity · Jul 2026
Audience: 3k LinkedIn followers
Funding rounds
- Jun 2025Series A$1.4M
- Nov 2023Seed$858.2K
Founders & team
Investors
Baruni
Tech stack
Core-JsElementorFacebook PixelGoogle AnalyticsGoogle Font ApiGoogle Tag Manager
#10
Seed · Alphen Aan Den Rijn, South Holland · founded 2014$12.5Mraised▾
Seed · Alphen Aan Den Rijn, South Holland · founded 2014
Developer of long-duration energy storage solutions using saltwater-based flow battery technology. The company provides a safe and sustainable alternative to traditional batteries. Their systems are designed for commercial, industrial, utility, and remote microgrid applications. The technology enables integration of renewable energy sources into power systems. It offers scalability and flexibility in energy capacity.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 7k LinkedIn followers — 3.2% of this cohort's audience
Funding rounds
- Apr 2024Seed$6.4M
- Apr 2022Grant (prize money)$2.7M
- Apr 2022Grant (prize money)$2.5M
- May 2017Grant (prize money)$834.5K
Founders & team
Investors
Europa, Rabobank, Climate KIC, EIT InnoEnergy, InnovationQuarter, Invest-NL
Tech stack
CloudflareCloudflare Bot ManagementCookiebotCore-JsGodaddyGoogle Analytics
#11
Series A · Delft, South Holland · founded 2014 · 24 employees$11.6Mraised▾
Series A · Delft, South Holland · founded 2014 · 24 employees
Provider of sustainable powders for batteries. It develops powders for batteries, fuel cells, electrolysers and more. It uses atomic layer decomposition solution for layering process.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 4k LinkedIn followers
Funding rounds
- May 2024Series A$3.2M
- Oct 2021Series A$11.6M
- Oct 2020Seed—
- Jan 2020Grant (prize money)$405.3K
Founders & team
Investors
Sandwater, Invest-NL, PVS Investments, Europa, EIT RawMaterials, 819 Capital Partners
#12
Acquired · Rotterdam, South Holland · founded 2009$49.2Mraised▾
Acquired · Rotterdam, South Holland · founded 2009
Wave compensated platform for the marine and offshore construction industry. It develops & produces wave-compensated platforms for the marine offshore, and nearshore construction industry. It provides lifting operations in offshore conditions and enables clients to avoid weather downtime. Applications range from small platform installations and modifications to maintenance work at offshore wind farms and oil & gas facilities.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 10k LinkedIn followers — 4.8% of this cohort's audience
Activity: 1 product launches announced in 12 mo
Funding rounds
- Oct 2022Series B$7.4M
- May 2015Series B$21.8M
- 2010Series A$20M
Founders & team
Investors
Abn Amro, InnovationQuarter
Tech stack
Apache Http ServerCore-JsGoogle AnalyticsGravity FormsHstsJquery
Funding & investor landscape
$344.4Mtotal disclosed funding
37companies funded
94disclosed rounds
1rounds last 90 days
Most active investors
Notable founders
Murthy Chintalapati
Co-Founder · ROCSYS
Kantzen Deurzen
Co-Founder · ROCSYS
Christian Rood
Co-Founder & CEO · Leydenjar Technologies
Jan Heinen
Co-Founder & CEO · Maeve Aerospace
Michael Kann
Founder · Maxwell and Spark
Clinton Bemont
CEO · Maxwell and Spark
Jasper Hoogeweegen
Owner & CEO · Samotics
Simon Jagers
Co-Founder · Samotics
Robert Vrancken
Founder & CTO · Gradyent Technologies
Herve Huisman
Co-Founder & CEO · Gradyent Technologies
Fokko Mulder
Co-Founder · Battolyser Systems
Mattijs Slee
Chief Executive Officer · Battolyser Systems
Prism market signals · Netherlands · country-scoped Prism corpus, 264,398 docs
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
Common questions
How many Energy Tech companies are there in South Holland, Netherlands?
Radar tracks 108 indexable Energy Tech companies headquartered in South Holland, Netherlands that meet our profile-completeness bar.
What is the total funding raised by Energy Tech companies in South Holland, Netherlands?
The Energy Tech companies in South Holland, Netherlands on this list have raised a combined $344.4M in disclosed equity funding across 37 funded companies.
Which is the highest-funded Energy Tech company in South Holland, Netherlands?
Barge Master is the highest-funded Energy Tech company in South Holland, Netherlands, with $49.2M in disclosed equity funding.
How many Energy Tech companies in South Holland, Netherlands are funded?
37 of the 108 Energy Tech companies in South Holland, Netherlands on this list have disclosed at least one equity funding round.
How many Energy Tech unicorns are there in South Holland, Netherlands?
None of the Energy Tech companies in South Holland, Netherlands on this list currently has a disclosed valuation of $1B or more.
Who are the top investors in South Holland, Netherlands Energy Tech companies?
The most active investors in South Holland, Netherlands Energy Tech companies on this list include Europa, YES!Delft, InnovationQuarter, EIC Fund, Delft Enterprises.
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.