Interzero

Overview
Interzero is a Cologne-headquartered German circular-economy and recycling services group operating across dual-system packaging recovery, waste management, plastics recycling and circular-economy consulting. Interzero has taken a strategic-investor role in Aachen second-life battery-storage company Voltfang, participating in both Voltfang's Series A tranche in 2023 and its June 2025 EUR 15 million Series B round.

Why this entity matters
Interzero is a relevant reference entity for Startuprad.io's DACH circular-economy, cleantech and industrial-strategy coverage for three reasons. First, it is one of the largest European circular-economy operators headquartered in Germany, active across dual-system packaging, plastics recycling and industrial waste. Second, its cross-round strategic-investor role in Voltfang (Series A and Series B) is a direct data point on how German industrial circular-economy operators are engaging with the second-life battery thesis. Third, its Cologne headquarters and cross-border European footprint anchor it in the Aachen-Cologne-Ruhr industrial-innovation corridor that Startuprad.io covers extensively.

Firm history and strategy
Interzero is publicly presented as a circular-economy and recycling services group with a European operating footprint, headquartered in Cologne. The group's public positioning centres on 'zero waste' circular services for consumer-goods, industrial and retail customers. In the Voltfang context, Interzero is publicly identified as a returning investor across the Voltfang Series A (2023) and Series B (June 2025) rounds, per electrive.com's Series B reporting and EU-Startups' Series A and Series B coverage. Interzero's fund-vehicle structure, corporate-venturing scope beyond Voltfang and current shareholder base should be verified against the group's own reporting and any concurrent M&A filings, as the group's ownership has evolved since its earlier ALBA-Group origins.

Role in the DACH and European technology ecosystem
Interzero sits at the intersection of European circular-economy policy, industrial waste management and cleantech corporate venturing. Its Voltfang investment is a leading data point on how German circular-economy operators are extending into second-life battery infrastructure; its Cologne headquarters anchor it in the Aachen-Cologne-Ruhr industrial-innovation corridor. For Startuprad.io's DACH cleantech and industrial-strategy coverage, Interzero is a corporate-strategic reference entity rather than a conventional financial venture-capital investor.

Selected relationships and affiliations
Publicly disclosed portfolio activity in DACH cleantech: Voltfang Series A (2023) and Voltfang Series B (June 2025, EUR 15 million). Sector: circular-economy services, recycling, dual-system packaging. Related Startuprad.io entities: Voltfang (portfolio investment); Startuprad.io's cleantech-investor coverage.

Startuprad.io relevance
Interzero is a relevant entity in Startuprad.io's DACH circular-economy and cleantech coverage primarily through its strategic-investor role across the Voltfang Series A and Series B rounds and through the broader European circular-economy narrative that Startuprad.io covers. It appears in Startuprad.io's Voltfang interview and cleantech-investor analysis coverage.

Public source context
This profile draws on Interzero's own website https://www.interzero.com , electrive.com's Voltfang Series B coverage https://www.electrive.com/2025/06/14/battery-storage-startup-voltfang-secures-e15-million-investment/ , EU-Startups' Voltfang Series A coverage https://www.eu-startups.com/2023/05/aachen-based-voltfang-secures-e5-million-funding-boost-for-its-circular-approach-to-ev-batteries/ and EU-Startups' Voltfang Series B coverage https://www.eu-startups.com/2025/06/german-cleantech-startup-voltfang-secures-e15-million-and-launches-europes-largest-second-life-battery-factory/ .

Startuprad.io coverage of Interzero

As of 2026-09-11 Startuprad.io does not maintain a dedicated blog tag for Interzero ; the entity is referenced in Startuprad.io's Voltfang interview and cleantech-investor analysis coverage at https://www.startuprad.io/post/voltfang-second-life-battery-factory-aachen and https://www.startuprad.io/post/top-vc-firms-investing-in-cleantech-startup .

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For allocators mapping the DACH VC landscape around Interzero, the Entrepreneurs Vault opens up LP-side commentary, co-investor mapping and follow-on tracking across this firm's book.
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Startuprad.io coverage

Voltfang: How Aachen's €15M Startup Turns Used EV Batteries Into Grid Storage
Published: 28 July 2025
Last updated: 11 September 2026
Coverage type: Analysis
https://www.startuprad.io/post/voltfang-second-life-battery-factory-aachen

Top VC Firms Investing in Cleantech Startup
Published: 29 July 2025
Last updated: 7 September 2026
Coverage type: Analysis
https://www.startuprad.io/post/top-vc-firms-investing-in-cleantech-startup

About Startuprad.io
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Canonical record: https://www.startuprad.io/entities/interzero