# blue activity

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/blue-activity

- Industry: Environmental Services
- Headquarters: Heidelberg, Germany
- Website: www.blueactivity.de/en/start-en
- Total disclosed funding: $10M
- Latest round: Seed (Feb 28, 2026)
- Investors on record: 2

## About

Based in Germany, blue activity GmbH operates as a provider of sustainable cooling water treatment solutions that utilize functional microorganisms and biopolymer-based additives to enhance system efficiency and reduce costs.blue activity GmbH is a company that specializes in innovative cooling water treatment solutions. Founded in 2021 in Heidelberg, Germany, the company has secured a single investment deal to date. The most recent funding round occurred on March 18, 2026, where they raised EUR 8.5 million in a SEED round co-led by Wind Capital and Venture Stars, with participation from Angel Invest. The total amount raised by the company stands at EUR 8.5 million.blue activity GmbH specializes in sustainable cooling water treatment solutions that leverage functional microorganisms and biopolymer-based additives. Their core offerings replace toxic biocides traditionally used in open recirculating cooling systems with natural alternatives, enhancing system efficiency while reducing operating costs. The company provides products such as BA-SYNBIOREX®, a natural alternative to biocides, BA-CorProtect®, an innovative additive for corrosion protection, and BA-Cycle+®, a real-time monitoring system that tracks essential performance indicators like biofilm and scaling. These solutions cater primarily to industries such as steel, chemical manufacturing, energy, automotive, and glass, serving notable clients including BASF, Mercedes-Benz, and VANTAGE. The geographical markets for blue activity's products extend beyond Germany, as their innovative solutions are applicable in various international industrial sectors seeking sustainable operational improvements.The revenue model of blue activity GmbH is rooted in business-to-business transactions, primarily through partnerships with industrial clients that require advanced cooling water treatment solutions. The company’s flagship products, including BA-SYNBIOREX® and BA-CorProtect®, are offered under structured agreements that may involve subscription-based service packages, ensuring ongoing support and monitoring of cooling systems. These transactions typically include an integration phase, followed by continuous performance monitoring and maintenance services, with clients benefiting from a 24/7 real-time dashboard that tracks system efficiency. Pricing structures are tailored to individual client needs based on the complexity and scale of the systems being treated, with the overarching goal of delivering measurable cost savings in water and energy consumption. The focus on operational transparency and performance optimization further enhances the value proposition for blue activity's customers across various industrial sectors.In March 2026, blue activity GmbH raised EUR 8.5 million in seed funding to develop its cooling water treatment technology and expand commercial operations in European industrial markets. The company is focusing on launching new products designed to enhance their offerings and is targeting expansion into additional European markets by late 2026. The recent funding will support these initiatives, facilitating the development of innovative technologies and strengthening their market presence.

## Funding rounds

- Seed, Feb 28, 2026, $10M — Venture Stars, Angel Invest

## Investors

- Venture Stars (https://capitalatlas.ai/funds/venture-stars) — Seed
- Angel Invest — Seed