What GermanZero does

GermanZero e.V. is a Hamburg-registered, nonprofit climate advocacy organization founded in 2019 with the stated mission of advancing Germany to climate neutrality by 2035 (consistent with the Paris Agreement 1.5°C limit). It combines a bottom-up community-led mobilization model with a top-down federal-policy engagement program. Its flagship asset is the 1,5-Grad-Gesetzespaket—a comprehensive legislative package of more than 230 sector-spanning measures (energy, industry, transport, buildings, agriculture) with ready-to-introduce law text, developed with over 200 experts and 500 volunteers and supported by a proprietary emissions-balance model that ensures package-level 1.5°C compliance. The package has been formally delivered to all 500 members of the German Bundestag and to four federal ministries (BMWK, BMDV, BMUV, BMEL), and 78 Bundestag members have publicly given Klimaversprechen (climate promises) to the organization.

The LocalZero program is its operational backbone: a network of teams in 90+ cities and 162 electoral districts (covering ~15 million people) that conducts policy conversations with elected representatives, drives Klimaentscheide (citizen climate referendums), and supports municipal climate planning. LocalZero is supported by a suite of civic-tech tools: WärmeGuide (heat-planning platform co-developed with Öko-Institut and KWW for all 11,000 German municipalities), MappingZero (high-impact measure visualization, used by Umweltbundesamt and Süddeutsche Zeitung), LocalZero Monitoring (city-level climate progress tracking), Klimawahlcheck (election comparison tool), Klimaweg, and Klimavision. Since 2021, more than 220 policy conversations with Bundestag members have been conducted, and 45 cities with 6.4 million inhabitants are on a path to climate neutrality by 2035. The October 2025 Hamburg Zukunftsentscheid victory—delivered through a 160-organization coalition committing the city to climate neutrality by 2040—is the most prominent recent outcome.

The organization is funded entirely through donations and grants from private individuals, foundations (European Climate Foundation, Stiftung Mercator, Hertie-Stiftung, Reiner Lemoine Stiftung, Heidehof-Stiftung, Daniel Schlegel Umweltstiftung, Patagonia Stiftung), corporate partners (Postcode Lotterie, Naturstrom AG, GAMOMAT), and selective public co-funding (Umweltbundesamt). It employs ~33 paid staff (May 2023), coordinates ~1,000 active volunteers, and is governed by a three-member executive board (Friedemann Brockmeyer, Martin Oetting, Albrecht von Sonntag) with Michael Schäfer as Managing Director. GermanZero holds charitable tax-exempt status under §52 AO, is a member of Klima-Allianz Deutschland, and is a signatory of the Initiative Transparente Zivilgesellschaft.

Name

GermanZero

Legal name

GermanZero e.V.

Website

https://germanzero.de

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

GermanZero e.V. is a Hamburg-based nonprofit climate advocacy organization founded in 2019 that drives Germany's climate neutrality through a 230-measure legislative package and a 90+ city LocalZero municipal network, funded by donations and grants.

Ownership category

akta.pro rank

Product category

Climate Advocacy and Environmental Policy Services

NAICS

Environment, Conservation and Wildlife Organizations (813312)

SIC

Services-Membership Organizations (8600)

akta.pro primary industry

Climate Change Mitigation & Adaptation (BPAGAGAF)

akta.pro secondary industry

Climate Policy, Governance & NDC Support (BPADALAA)

Keywords

• Climate advocacy services
• Climate policy consulting
• Municipal climate planning
• Legislative policy development
• Civic engagement programs

Headquarters

HQ city

Esslingen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Others

Revenue model

1. Private Donations: GermanZero e.V. is financed primarily through donations from private individuals. The organization runs online donation campaigns, gift donations (Geschenkspende), and large donation programs for individuals.
2. Foundation and Corporate Grants: Funding from foundations (Stiftungen) and companies including Daniel Schlegel Umweltstiftung, Postcode Lotterie, Heidehof-Stiftung, Hertie-Stiftung, Patagonia Stiftung, Reiner Lemoine Stiftung, European Climate Foundation, Stiftung Mercator, Umweltbundesamt, The Sunrise Project, and Naturstrom AG. Occasional public funding also received.
3. Corporate and Association Donations: Dedicated donation page for corporate or association donations via Twingle platform.

Go-to-market motion1 record

Distribution channels5 records

Marketing channels8 records

Core offering

GermanZero e.V. is a non-profit climate advocacy organization that develops comprehensive climate policy proposals (notably a 1.5-degree legislative package with 230+ measures) and operates the LocalZero network supporting volunteer teams in 90+ German municipalities pursuing climate neutrality. It provides digital planning tools, citizen engagement programs, and policy advocacy to push Germany toward net-zero greenhouse gas emissions by 2035.

Product overview

GermanZero is a non-profit climate protection organization (e.V., Hamburg, founded 2019) operating as a civic advocacy movement rather than a traditional product company. Its core offerings consist of policy packages and digital tools designed to advance Germany's transition to climate neutrality by 2035. The flagship product is the 1,5-Grad-Gesetzespaket, a comprehensive legislative package of over 230 measures with drafted legislation for all sectors. LocalZero serves as the networked program for community-level climate action across 90+ cities, supported by specialized digital tools including MappingZero (high-impact measure visualization), WärmeGuide (municipal heat planning platform), LocalZero Monitoring (city climate progress tracker), and Klimawahlcheck (election comparison tool). Additional offerings include the ABC des Klima-Engagements guide, MissionZero podcast, and the Klimafinanzierung policy program. These products are primarily advocacy and civic engagement tools rather than commercial software products with API integrations.

Differentiator

Problem solved

Functional benefit

Brands

• LocalZero: A network and support structure for local teams working to achieve climate neutrality in cities and municipalities across Germany. Provides tools, resources, and coordination for citizen-driven climate initiatives.
• 1,5-Grad-Gesetzespaket
• MissionZero Podcast
• WärmeGuide
• MappingZero
• Wahlcheck
• Zeroconomy

Products and services

• 1,5-Grad-Gesetzespaket (1.5-Degree Legislative Package) A comprehensive legislative package containing more than 230 carefully coordinated policy measures across all sectors (energy, industry, transport, buildings, agriculture) designed to achieve net-zero greenhouse gas emissions by 2035, including a CO2 price model and drafted legislation ready for parliamentary introduction. Targeted at German federal policymakers and all 500 members of the Bundestag.
• LocalZero Network Program A network and support program for local volunteer teams in 90+ cities and municipalities across Germany working to achieve climate neutrality at the community level. Provides tools, knowhow, training, and coordination for Klimaentscheid (citizen climate decisions) and municipal climate action. Targeted at German citizens and municipal governments.
• MappingZero An interactive online tool that identifies and visualizes high-impact climate measures, showing which policy changes would yield the greatest emission reductions in the energy sector. Used by the Umweltbundesamt and Süddeutsche Zeitung for climate reporting. Targeted at policymakers, journalists, and engaged citizens.
• WärmeGuide An online platform developed with the Öko-Institut and Kompetenzzentrum Kommunale Wärmeplanung that provides municipalities with an overview of local heat supply, socioeconomic data, and actionable recommendations for socially equitable heat planning, available for all 11,000 German municipalities.
• LocalZero Monitoring A monitoring tool developed by LocalZero teams in Munich, Bremen, and Lüneburg that tracks and visualizes a city's progress toward climate neutrality, making gaps and remaining work visible to citizens and city administrators.
• Klimawahlcheck (Climate Election Check) An online tool comparable to the Wahl-O-Mat that compares party and candidate positions on key climate topics for elections, developed primarily by volunteers and used across multiple German states.
• Klimafinanzierung (Climate Finance) Program A policy program advocating for public funds from the federal budget and climate funds to be allocated in compliance with Basic Law and Klimaschutzgesetz requirements, including fiscal reform proposals and opposition to fossil fuel subsidies.

Quantifiable outcome

• 45 cities with 6.4 million inhabitants on path to climate neutrality by 2035 through LocalZero
• +6 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Six partnerships are on record, tiered core.

• Öko-InstitutcoreStrategic or Co-development PartnerCo-developed the WärmeGuide online platform with LocalZero, the Kompetenzzentrum Kommunale Wärmeplanung (KWW), and the Sozial-Klimarat. The Öko-Institut brings scientific expertise to municipal heat planning tools.
• Klima-Allianz DeutschlandcoreStrategic or Co-development PartnerGermanZero e.V. is a member of Klima-Allianz Deutschland, a broad alliance of climate organizations in Germany.
• Fridays for FuturecoreStrategic or Co-development PartnerCollaborating on major initiatives including the Hamburger Zukunftsentscheid (160-organization coalition) and national climate demonstrations (e.g., 'Exit Gas Enter Future' demos). Active partnership in citizen climate referendums.
• Parents for FuturecoreStrategic or Co-development PartnerCoordinated with Parents for Future on the Klimawahlcheck (Climate Election Check) initiative deployed in 27 cities during the NRW municipal elections 2025.
• Greenpeace, co2online, StadtLandKlima, For Future BündniscoreStrategic or Co-development PartnerCoalition partners for the Tag des offenen Heizungskellers (Open House Heating Day, November 15), coordinated by LocalZero along with Greenpeace, co2online, StadtLandKlima, and the For Future Bündnis.
• Bündnis ZukunftsKlima (Würzburg)coreStrategic or Co-development PartnerMulti-organization climate alliance formed in Würzburg before the 2023 Bavarian state election, bringing together sustainability groups to amplify their political influence. Has become a model for similar alliances across Germany.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Fridays for Future Germany: Germany's leading grassroots youth climate movement and a direct peer in mobilizing citizens, organizing demonstrations, and partnering with GermanZero on the Hamburger Zukunftsentscheid coalition and national climate campaigns.
• Bund für Umwelt und Naturschutz Deutschland (BUND): Major German environmental federation active in climate, biodiversity, and energy policy. A close peer as a federal environmental advocacy organization with member-based structure, policy expertise, and engagement with German ministries on climate legislation.
• Deutsche Umwelthilfe (DUH): German environmental and consumer advocacy organization that actively litigates and lobbies on climate and energy issues. Notably, DUH awarded GermanZero's LocalZero Markdorf team as a candidate for its 2025 'Umweltheld:in des Jahres' — and is a closely comparable domestic peer.
• Campact e.V. German civic campaigning platform focused on social, environmental, and democratic issues. Shares the citizen-petition-and-campaign GTM motion with GermanZero and overlaps in donor base (with Luise Neumann-Cosel from Campact also on GermanZero's board).
• LobbyControl: German NGO focused on transparency around political lobbying and corporate influence on policy. Direct peer in German civil-society advocacy space, and Heidi Bank (GermanZero's head of Fundraising) was previously LobbyControl's political managing director.
• Citizens' Climate Lobby Deutschland: German chapter of the global Citizens' Climate Lobby, focused on citizen engagement with elected representatives for binding climate policy. Closely comparable to GermanZero's Politikgespräche model of recruiting ordinary citizens to lobby their Bundestag members.
• Parents for Future: German parental climate movement and direct collaborator with GermanZero on the Klimawahlcheck deployed in 27 NRW municipal elections in 2025. Comparable in mobilizing a specific citizen segment around local elections and climate accountability.

Broad incumbents

• Naturschutzbund Deutschland (NABU): Germany's largest environmental NGO with 900,000+ members, operating across nature conservation, climate, and policy. Comparable in being a major German environmental advocacy organization with significant membership base and political access, though much older (founded 1899) and broader in scope.
• Klima-Allianz Deutschland: Broad alliance of 140+ German civil-society, environmental, development, and civic organizations advocating for ambitious climate policy. GermanZero is a member, and Klima-Allianz serves as the umbrella convener that GermanZero coordinates with on federal-level advocacy.
• 350.org: Global grassroots climate movement active in Germany and across Europe. Shares the volunteer-mobilized, decentralized-network GTM with GermanZero, and operates comparable Klimaentscheid-style campaigns in multiple countries.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCyio7GV0kpXeOu5m6Xo6A3A
• Facebookde-de.facebook.com/GermanZero.NGO
• LinkedInlinkedin.com/company/germanzero
• Instagraminstagram.com/_GermanZero

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GermanZero