# Mainova

Mainova is a Corporate Investor based in Frankfurt, Germany.

## Overview

- **Organization type:** Corporate Investor
- **Headquarters:** Frankfurt, Germany
- **Region:** Europe
- **Address:** Frankfurt, Germany
- **Founded:** 1998
- **Assets under management:** Undisclosed
- **Website:** mainova.de
- **LinkedIn:** https://www.linkedin.com/company/mainovaag
- **Wikidata:** Q1885661

## Regulatory record

- **Reports private funds:** No

## About

Mainova AG is a German regional energy supplier that has invests in a fund to decarbonize the global economy. Mainova operates as an energy service provider in the energy supply sector.

## Sectors

- Energy Transition & Renewables
- Infrastructure
- Data Centers

## People

- Stadtwerke Frankfurt am Main Holding GmbH — 75.2% majority shareholder
- Thüga AG — 24.5% minority shareholder
- City of Frankfurt am Main — Ultimate controlling entity

## Questions

### Who controls Mainova and how does that shape its investment decisions?

The City of Frankfurt am Main is the ultimate controlling entity through a 75.2% stake held by Stadtwerke Frankfurt am Main Holding GmbH, with Thüga AG owning the remaining 24.5%. This municipal ownership structure means Mainova's capital allocation blends public-utility duties — maintaining the Frankfurt district heating network and power plants — with opportunistic expansion into digital infrastructure and renewables, a posture distinct from purely profit-maximizing private investors.

### What is the Mainova WebHouse data center project?

Mainova WebHouse is a joint venture data center campus located in Frankfurt-Seckbach, developed in partnership with BlackRock's Global Infrastructure Fund. The campus, designated MWH01, leverages Mainova's municipal utilities expertise and local land position to supply energy and cooling infrastructure to a major European data center market. It represents Mainova's most visible move into digital infrastructure.

### Which sectors does Mainova target?

Mainova's portfolio spans energy transition and renewables, core utility infrastructure, and digital infrastructure, particularly data centers. Traditional assets include the Frankfurt district heating network and biomass power generation, while newer activity centers on solar parks and data center campuses within the Rhine-Main region.

## Related profiles

- [Mainline West Fund Manager](https://altss.com/profile/mainline-west-fund-manager)
- [Mainsail Asset Management](https://altss.com/profile/mainsail-asset-management)

---

Last updated: 2026-05-30T17:18:39.595Z

Canonical page: https://altss.com/profile/mainova

Maintained by Altss — https://altss.com — methodology: https://altss.com/methodology