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42watt logo — Delivering the right solution for every homeowner and every...

42watt

Delivering the right solution for every homeowner and every home.

Founded 2021 Germany Germany 53 employees Acquired Total: $9.00M Energy, Energy Efficiency

General Information

Company Name 42watt
Founded Year 2021
Location Germany Germany
Employees 53
Industries Energy, Energy Efficiency
Funding Stage Acquired
Business Model B2C, Marketplace, D2C
Revenue Model Project Based, Service Fee, Product Sales
Hiring 6 roles posted in the month to 25 Sep 2026
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Recorded by Bounce Watch from public sources. Every entry below carries the date we observed it, and when we have not looked recently the page says so rather than leaving silence to imply nothing happened.

Actively Hiring Sep 23, 2026

Hiring for 6 positions in the last 30 days.

Get alerts when 42watt shows new signals

About 42watt

42watt, founded in 2021, is a promising player in the Energy and Energy Efficiency industries, based in Germany. With the slogan "Delivering the right solution for every homeowner and every home," the company's mission revolves around making energy-efficient building modernization simple and reliable.

In a landscape often plagued by complexity, 42watt distinguishes itself by offering structured, end-to-end solutions, from independent advice to full implementation and long-term optimization. Their focus is on turning complex energy-efficient projects into actionable plans using a blend of deep technical expertise and innovative digital tools. The vision is ambitious: to become Europe's trusted partner for sustainable building updates, ultimately driving a climate-neutral building sector by 2045.

Their latest milestone was an acquisition investment from OBI on 01 January 2026, signaling investor confidence and potential for growth in addressing the urgent climate challenges ahead.

Taxonomy: Energy-efficient Modernization, Home Retrofit Marketplace, Sustainable Building Solutions, Solar Systems, Heating Systems, Electric Mobility, Electricity Optimization, Digital Platform, Local Installer Network, End-to-End Project Solutions, Real-time System Optimization, Independent Energy Consulting, Building Decarbonization, Technical Expertise

Services & Products

Comprehensive Energy Systems
Heat Pump Installation
Photovoltaic and Battery Systems
Wallbox (EV Charging) Setup
Energy Management Solutions
Subsidy Assistance
Home Energy Monitoring and Maintenance

Target Customers

Homeowners Residential Property Owners Sustainable Lifestyle Enthusiasts

Funding Rounds & Investors (5)

View All
Funding Stage Amount Investors Lead Investors Date
Acquisition Undisclosed 1
OBI
01 Jan 2026
Early VC $4.00M 3
BonVenture PT1
BonVenture, PT1 +1
01 Jan 2024
Seed $4.00M 5
BonVenture Contrarian Ventures PT1
BonVenture, Contrarian Ventures +3
01 Sep 2023
Seed €1.00M 3
BonVenture
BonVenture, Kristofer Fichtner +1
01 Jan 2023
Angel Undisclosed 3
Kaplan Ventures
Kaplan Ventures, Niko Waesche +1
01 Sep 2022

42watt Alternatives & Competitors

View All Alternatives
42watt vs
Enter
Enter Germany

We allow homeowners to make the best decisions regarding the energy efficiency of their home.

Series B
222 employees
Energy, Manufacturing
42watt vs
Octopus Energy
Octopus Energy United Kingdom

We're not your typical energy company.

5735 employees
Energy, Renewable Energy
42watt vs
einhundert
einhundert Germany

Energy for Quality Living

117 employees
Energy, Financial Services
View all alternatives

FAQ About 42watt

Delivering the right solution for every homeowner and every home.
42watt was founded in 2021.
42watt is headquartered in Germany.
42watt operates in Energy and Energy Efficiency. Its work centres on Energy-efficient Modernization, Home Retrofit Marketplace, Sustainable Building Solutions and Solar Systems. Its customers include Homeowners, Residential Property Owners and Sustainable Lifestyle Enthusiasts.
42watt has a B2C, Marketplace and D2C business model. Its revenue comes from Project Based, Service Fee and Product Sales.
42watt has approximately 53 employees.
42watt has completed 5 funding rounds, raising a total of $9.00M. The latest funding stage is Acquired.
42watt offers: Comprehensive Energy Systems, Heat Pump Installation, Photovoltaic and Battery Systems, Wallbox (EV Charging) Setup, Energy Management Solutions, Subsidy Assistance, Home Energy Monitoring and Maintenance.
Top alternatives and competitors to 42watt include Enter, Octopus Energy, einhundert, Elyos, Nuvia Smart Energy Technologies. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
42watt and Enter are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for 42watt, https://bouncewatch.com/company/42watt, updated 25 September 2026. When citing, please name BounceWatch and link this page.

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