E.R. Capital Holding is a private investment and asset management group headquartered in Hamburg, Germany. Owned by Erck Rickmers, the firm operates as a family office with a global investment footprint across Europe, Asia and North America. Through direct acquisitions, partnerships and fund commitments, it manages holdings in real estate, shipping, renewable energy and equity stakes in diverse businesses. By blending long-term capital and strategic support, the group aims to foster sustainable asset growth and preserve value for its stakeholders.
The firm targets companies at the Series A stage, offering financial backing to early-growth ventures in areas such as artificial intelligence, climate technology and green technology. The investment team combines sector knowledge and financial analysis to identify scalable business models and may allocate capital through co-investments with specialist funds. In July 2023, E.R. Capital Holding invested $5.48 million in Vilisto during its Series A-III funding round to support the developer of smart heating solutions for improved energy efficiency.
E.R. Capital Holding’s clean technology activity is most visible through its stake in Tesvolt, a producer of lithium-based battery storage systems for commercial and industrial applications. Tesvolt’s solutions, built around nickel manganese cobalt oxide cells, are manufactured at Europe’s first gigafactory for commercial storage in Wittenberg, Germany, and deployed globally. The firm has also backed Tesvolt’s expansion into hydrogen projects and inductive charging via an investment in Stercom Power Solutions. This focus on battery storage complements the firm’s broader interest in renewable power solutions, with Tesvolt representing its clearest commitment to this sector as of June 2025.
