node.energy
node.energy sells software to manage wind and solar energy projects, automating data consolidation and regulatory compliance. The Frankfurt-based company has raised $25M and employs 100 people.
The growth story
node.energy grew from 63 to 100 employees between 2023 and 2026, raising $25M along the way, most recently a Series B in April 2025.
About
node.energy's opti.node platform centralizes energy data for wind and solar park operators, automating tasks like electricity tax calculations and regulatory integration. It targets professional operators and asset managers who need to streamline complex energy project management.
The company has raised $25M in funding, most recently in a Series B round in April 2025. Its investor base includes climate-focused funds like DeepTech & Climate Fonds and HTGF, alongside venture capital firms like 10x Founders and BitStone Capital.
Founders and leadership
Engineering is the largest function at node.energy, with 10 employees. The company has a median tenure of 3 years, suggesting moderate employee retention.
The node.energy org chart
Matthias Karger (CEO & Co-Founder) leads 36 mapped leaders with 4 direct reports. Click +N to expand a team; names link to the person’s public profile.
Departments, and which ones grew
Headcount by function: Engineering 25 (-4% YoY), Customer Success and Support 11 (0% YoY), Sales 10 (-17% YoY), Administrative 6 (-14% YoY), Information Technology 5 (+67% YoY), Business Development 5 (-29% YoY).
Talent flow
node.energy hires from energy and tech firms like Clean Energy Sourcing, OXYGEN TECHNOLOGIES, and Bosch. Alumni have moved to roles at companies like OLI and Greencode Ventures.
Most common previous employers of node.energy staff: Clean Energy Sourcing (3), OXYGEN TECHNOLOGIES (3), Verlag Herder (3), Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) (3), Bosch (2), Capgemini (2). Former node.energy employees most often moved to OLI (2), Greencode Ventures (1), Academic Platform Project (1), SDRs of Germany (1), Beiersdorf (1), Redstone (1).
Alumni worth knowing
The node.energy mafia
node.energy alumni have founded three companies, including Superscale AI, which employs 21 people, and smaller ventures like Unison.labs and HängemattenReisen.
3Johann Boch, was Intern Sales Manager until 2018Christian Huder, was Chief Marketing Officer until 2020Amelie Dörnberg, was Sales / Customer Support until 2022Web traffic
Traffic mix: 0% direct, 0% search, 0% social, 0% paid.
What this company is made of
Most common skills at node.energy: Project Management (29), Python (Programming Language) (25), Microsoft Office (21), Renewable Energy (20), English (18), Analytical Skills (18), Microsoft Excel (17), Communication (17).
Where the team actually sits
node.energy people are concentrated in Hesse, Germany (18), Baden-Württemberg, Germany (12), North Rhine-Westphalia, Germany (9), Germany (6).
Search footprint
node.energy attracts about 8 organic search visits a month, traffic worth roughly $0K a month if bought through ads. It gained 20 ranking keywords and lost 22 in the last period.
What employees say
- Compensation
- 3.00 / 5
- Career opportunities
- 4.00 / 5
- Senior management
- 5.00 / 5
- Work-life balance
- 4.00 / 5
Frequently asked
node.energy has 100 employees as of September 2026.
node.energy has raised $25M in total, most recently a Series B round in April 2025.
node.energy was founded in 2016 by Matthias Karger, Kadir Coskun, Lars Manuel Rinn.
Matthias Karger (CEO & Co-Founder) sits at the top of node.energy's reporting structure, with 4 direct reports.
The most common previous employers of current node.energy staff are Clean Energy Sourcing (3 people), OXYGEN TECHNOLOGIES (3 people), Verlag Herder (3 people).
Former node.energy employees most often move to OLI (2), Greencode Ventures (1), Academic Platform Project (1).
At least 3 companies have a founder who previously worked at node.energy, including Superscale AI, Unison.labs, HängemattenReisen.
node.energy attracts about 8 organic search visits a month, worth roughly $0K a month in equivalent ad spend.
The most common skills among node.energy staff are Project Management, Python (Programming Language), Microsoft Office, Renewable Energy, English.
node.energy staff are concentrated in Hesse, Germany (18), Baden-Württemberg, Germany (12), North Rhine-Westphalia, Germany (9).
node.energy has about 25 people in Engineering, down 4% over the past year, as of September 2026.
node.energy has about 11 people in Customer Success and Support, up 0% over the past year, as of September 2026.
Computed from 84 current and 63 former node.energy profiles, as of September 2026. Source: Crustdata.
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