105 Viertel

What 105 Viertel does

105 Viertel is a Hamburg-based social Do-Tank structured as a hybrid nonprofit-commercial group of entities under the parent 105 VIERTEL GmbH & Co. KG, whose ultimate parent is Ohana Group Hamburg GmbH. The charitable operating entity, 105 VIERTEL HAMBURG gGmbH, was founded in 2023 and received formal tax-exempt status (Freistellungsbescheid) from Finanzamt Hamburg-Nord in August 2025. The organization pursues a mission to make Hamburg the city with the highest quality of life worldwide by being active across all 105 of the city's neighborhoods by 2040, operating in three impact areas: education (BILDUNG), neighborhood culture (VIERTELKULTUR), and sustainable economy (NACHHALTIGE WIRTSCHAFT).

Service delivery rests on physical infrastructure rather than technology platforms. The group operates sustainably designed venues (including the Kulturräume locations and the Impact Hub Hamburg coworking space at Gänsemarkt 33 and Neuer Pferdemarkt 36) and delivers workshops, project days for schoolchildren, StattTouren wheelchair tours, and consulting engagements. The technology layer is limited to a Wix-hosted website, PayPal and Betterplace.org for donations, and Brevo for a newsletter planned for 2026; no proprietary software, data assets, or AI capabilities are disclosed.

Revenue is generated across six streams: venue rental, event hosting, consulting/advisory, individual donations (171,405 EUR in 2024), foundation and corporate grants/sponsorship (Airbus, Otto Group, BSH, Hamburger Fernsehpreis among others), and public funding. Individual donor Tarek Müller contributed more than 10% of the 2024 annual budget, representing meaningful donor concentration. The organization employs approximately 4 FTE plus 1.05 FTE student/minijob staff, 9 freelance or volunteer workshop facilitators, and 1 tour guide. All surplus is contractually reinvested into Hamburg programming.

Name

105 Viertel

Legal name

105 VIERTEL HAMBURG gGmbH

Website

https://105viertel.de

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

105 Viertel is a Hamburg-based social Do-Tank that runs education, neighborhood culture, and sustainable economy programs across all 105 of the city's districts, funded via donations, corporate grants, and earned income from its own venues and consulting.

Ownership category

akta.pro rank

Product category

Community Development Services

SIC

Services-Amusement & Recreation Services (7900)

akta.pro primary industry

Environmental Education, Capacity Building & Community Engagement (BPADALAO)

Keywords

• Social entrepreneurship programs
• Community education initiatives
• Nonprofit coworking spaces
• Venue rental services
• Impact consulting services

Headquarters

HQ city

Hamburg-wandsbek

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Venue and Space Rental: Rental income from the organization's own sustainably designed locations in Hamburg, with spaces that have received sustainability awards. Rental revenue directly funds nonprofit activities.
2. Event Hosting: Revenue from organizing and hosting events that bring people together and provide new experiences and knowledge about Hamburg.
3. Consulting Services: Advisory projects for organizations, including coaching for the 105/4 Impact Hub, generating revenue that supports nonprofit operations.
4. Donations and Private Support: One-time or recurring donations from private individuals who share the vision of making Hamburg more livable across all 105 neighborhoods.
5. Foundation and Corporate Grants/Sponsorship: Funding from foundations and public institutions, as well as project sponsorship from corporate partners. In 2024, total donations received amounted to 171,405 EUR, with Tarek Müller being a major donor representing more than 10% of the annual budget.
6. Public Funding: Government grants from public institutions supporting educational, cultural, inclusion, and climate protection initiatives.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

105 Viertel is a charitable social enterprise (Do-Tank) that develops and operates community impact programs across Hamburg's 105 city districts. It runs its own sustainably designed venues for rental, an Impact Hub coworking space, and educational/cultural/sustainability events and workshops. Revenue from commercial activities (venue rental, event hosting, Impact Hub memberships, consulting) is reinvested into free community programs in education (Bildung), neighborhood culture (Viertelkultur), and sustainable economy (Nachhaltige Wirtschaft).

Differentiator

Problem solved

Functional benefit

Products and services

• Unsere Räume (Venue Rental) Rental of the organization's own sustainably designed and award-winning venues and spaces in Hamburg. Available to SMBs, individuals, and event organizers. Revenue from rentals directly funds nonprofit activities across Hamburg's 105 neighborhoods.
• Veranstaltungen (Events) Own events that bring people together to share new experiences and knowledge about Hamburg, including neighborhood culture events, educational workshops, and StattTouren (e.g., wheelchair tours). Targeted at Hamburg residents and local organizations.
• Impact Hub Hamburg (105/4 Impact Hub) A coworking and collaboration space operated by 105 VIERTEL IMPACT HUB GmbH that unites people aiming to create positive change in Hamburg. Offers coaching and serves as a hub for social innovation, including corporate and mid-market members.
• Bildung (Education Programs) Educational initiatives that open doors to new skills and strengthen self-confidence, including project days for school students, digital education mentorships, and skill-building workshops. Targeted at Hamburg schoolchildren and residents.
• Viertelkultur (Neighborhood Culture) Cultural offerings across Hamburg's neighborhoods that create togetherness, foster creativity, and overcome barriers, including accessibility initiatives such as wheelchair tours. Targeted at Hamburg residents and community organizations.
• Nachhaltige Wirtschaft (Sustainable Economy Programs) Programs focused on shaping a regenerative future for Hamburg through efficient, ecological, and socially responsible initiatives. Targeted at local organizations, residents, and partners engaged in sustainability.
• Consulting and Advisory Services Consulting and advisory projects for organizations, including coaching for the 105/4 Impact Hub and projects on urban quality-of-life initiatives. Targeted at enterprises and local organizations seeking to support social impact in Hamburg.
• Spenden (Donations) One-time or recurring donation program supporting nonprofit activities such as project days for schoolchildren and wheelchair tours through Hamburg. Accepted via PayPal, Betterplace.org, and bank transfer.

Quantifiable outcome

• 171,405 EUR in donations received in 2024
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

Partnerships

Four partnerships are on record, tiered minor.

• Charta der Vielfalt e.V.minorStrategic or Co-development Partner105 Viertel has signed the Charta der Vielfalt (Diversity Charter), committing to diversity and inclusion within the organization. This is a membership/pledged commitment rather than a commercial partnership.
• Bundesverband Nachhaltige Wirtschaft e.V. (BNW)minorStrategic or Co-development PartnerMembership in the German Federal Association for Sustainable Economic Development, connecting 105 Viertel with the broader sustainable business community in Germany.
• Initiative Transparente ZivilgesellschaftminorStrategic or Co-development PartnerMember organization committed to the Initiative Transparente Zivilgesellschaft's 10-point transparency pledge, openly disclosing governance, financial, and impact information.
• Social Entrepreneurship Netzwerk Deutschland e.V. (SEND)minorStrategic or Co-development PartnerMember of SEND, the Social Entrepreneurship Network Germany, connecting 105 Viertel with other social enterprises for networking and knowledge sharing.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Caritas Hamburg: Regional arm of Germany's largest Catholic welfare organization, delivering social, educational, and inclusion services in Hamburg. Comparable as a regional operator in education, inclusion, and community support, but much larger and operating under a national welfare umbrella.
• Lokales Handlungsfeld / Quartiersmanagement Hamburg: City-funded neighborhood management programs across Hamburg districts, focused on improving quality of life in underserved areas. Directly comparable in targeting Hamburg's 105 neighborhoods for education, culture, and inclusion programming, though funded publicly rather than via a hybrid model.

Direct peers

• Project Together: Berlin-based civic engagement platform supporting community-led initiatives across Germany. Comparable as a social Do-Tank-style organization that activates citizens, partners with corporates, and runs programs aimed at societal transformation at a city/regional level.
• Purpose GmbH: German social enterprise and creative agency that builds purpose-driven campaigns and movements for nonprofits and companies. Comparable in mission orientation (social impact), consulting-style service delivery, and partnership-driven GTM.
• Social Impact gGmbH: German nonprofit operating programs, incubators, and venues to support social enterprises and impact initiatives. Highly comparable as a fellow social Do-Tank combining program delivery, venue/community infrastructure, and entrepreneurship support.
• Impact Hub Berlin: Part of the global Impact Hub network, Impact Hub Berlin operates a coworking and collaboration space plus programs for social entrepreneurs in Germany. Highly comparable to 105 Viertel's Impact Hub Hamburg, sharing a coworking-plus-impact business model and educational programming.

Broad incumbents

• Stiftung Bürgermut: Established German foundation focused on strengthening civil society and supporting innovative social projects. Comparable in mission (community-led impact in Germany) but operates as a grant-maker rather than a direct operator of venues and programs.
• Ashoka Germany: Global social entrepreneurship network's German arm, supporting system-changing social entrepreneurs. Comparable in the social entrepreneurship ecosystem and SEND-network adjacency, though Ashoka primarily supports individual fellows rather than operating venues.

Others

• Social Entrepreneurship Netzwerk Deutschland (SEND) e.V. Industry association of which 105 Viertel is a member. Comparable as an ecosystem anchor for German social enterprises, though SEND serves as a network/representation body rather than operating programs directly.
• betterplace.org: Germany's leading online donation platform for nonprofits. Adjacent as 105 Viertel's donation infrastructure partner; comparable in enabling fundraising flows for charitable organizations, though betterplace.org is a SaaS/marketplace rather than a direct service operator.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/105-viertel/?viewAsMember=true
• Instagraminstagram.com/105viertel

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

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

Frequently asked questions about 105 Viertel