# Aplus Energy

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/aplus-energy

- Industry: Power & Utilities
- Headquarters: Berlin, Germany
- Website: www.ostrom.de
- Total disclosed funding: $45M
- Latest round: Series B (Jun 6, 2025)
- Investors on record: 11

## About

Based in Berlin, Germany, and founded in 2021 by CEO Matthias Martensen and CMO Karl Villanueva, Aplus Energy GmbH, dba Ostrom, operates as the supplier of electricity in Germany generated using renewable energy sources. IIn June 2025, Aplus Energy GmbH raised EUR 20 million in series B funding led by new investor Eneco Ventures. Returning investors SE Ventures, Union Square Ventures, Adjacent Ventures, Ubermorgen Ventures, and J12 Ventures also participated in the round. The company provides a digital platform that includes automated meter readings to help users measure their usage, as well as a configurable monthly billing facility with transparency, contract details, and a bilingual option. The company plans to utilize the June 2025 funding to expedite their expansion, support smart meter installations, and strengthen their dominant position in automation.

## Funding rounds

- Series B, Jun 6, 2025, $23M — Union Square Ventures, Eneco Ventures, J12 Ventures, SE Ventures, Ubermorgen Ventures, Adjacent Ventures
- Series A, Sep 7, 2023, $8M — Union Square Ventures, J12 Ventures, SE Ventures, Ubermorgen Ventures, Adjacent Ventures
- Series A, Nov 24, 2022, $9.6M — Union Square Ventures, J12 Ventures, Ubermorgen Ventures, Adjacent Ventures, Shio Capital, Tio Holdings
- Seed, Dec 16, 2021, $5M — Rocket Internet SE, Global Founders Capital, J12 Ventures, 468 Capital, Ubermorgen Ventures, Shio Capital

## Investors

- Rocket Internet SE (https://capitalatlas.ai/funds/rocket-internet-se) — Seed
- Global Founders Capital (https://capitalatlas.ai/funds/global-founders-capital) — Seed
- J12 Ventures (https://capitalatlas.ai/funds/j12-ventures) — Seed, Series A, Series B
- 468 Capital (https://capitalatlas.ai/funds/468-capital) — Seed
- Ubermorgen Ventures (https://capitalatlas.ai/funds/ubermorgen-ventures) — Seed, Series A, Series B
- Shio Capital (https://capitalatlas.ai/funds/shio-capital) — Seed, Series A
- Union Square Ventures (https://capitalatlas.ai/funds/union-square-ventures) — Series A, Series B
- Adjacent Ventures (https://capitalatlas.ai/funds/adjacent-ventures) — Series A, Series B
- Tio Holdings (https://capitalatlas.ai/funds/tio-holdings) — Series A
- SE Ventures (https://capitalatlas.ai/funds/se-ventures) — Series A, Series B
- Eneco Ventures — Series B