Stichting Oude Groninger Kerken

What Stichting Oude Groninger Kerken does

Stichting Oude Groninger Kerken (SOGK / Groninger Kerken) is a Dutch non-profit heritage foundation founded on May 13, 1969, headquartered in Groningen. It manages a portfolio of 103 historic churches, 2 synagogues, 9 standalone towers, and 62 churchyards in the province of Groningen, functioning as the primary professional organization for Rijksmonumentale (national monument) church preservation in the region. SOGK holds POM (Professionele Organisatie voor Monumentenbehoud) status since 2013, enabling consolidated government subsidies, and operates as a cultural ANBI with CBF Erkenning certification. The foundation maintains the properties through systematic maintenance cycles, color-historical research for restoration authenticity, Visual Tree Assessments (VTA) for churchyard trees, and an integrated church bio-top methodology that combines cultural heritage with ecological landscape management.

The foundation operates a multi-revenue model combining individual donations from over 6,000 supporters, government subsidies (including earthquake reinforcement funding from IMG and NCG following Groningen gas extraction damage), church venue rental for concerts and events (De Kerk als Podium), retail sales through a webstore (publications, educational materials, limited edition prints by artist Reinder Homan), bequests, and pilgrim accommodation. A network of approximately 700 volunteers organized in local committees (plaatselijke commissies) provides grassroots operations support. Core product surfaces include a digital Kennisbank (knowledge bank) covering churches, organs, gravestones, and persons; 360-degree panorama photography enabling virtual visits; educational programs for schools (De Kijkdooskerk, De Puzzelkerk); a quarterly magazine (Tijdschrift Groninger Kerken); and the AURA library catalog. The foundation produces approximately 1,000 cultural events annually.

Strategic priorities span seismic reinforcement of earthquake-affected churches, landscape restoration through the 2025-2027 'Kerken in het Groen' partnership with Landschapsbeheer Groningen, youth engagement via the Take Me To Church program, educational partnerships (Weet wat je zegt with Museum Catharijneconvent and others), and continued portfolio expansion through church transfers from religious communities. The foundation earned the European Heritage Award / Europa Nostra Award in 2021 and International Sound Awards in 2025 for the 'Oorlog Dichtbij' exhibition.

Name

Stichting Oude Groninger Kerken

Legal name

Stichting Oude Groninger Kerken

Website

https://groningerkerken.nl

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

11–50 employees

Short description

Stichting Oude Groninger Kerken is a Dutch non-profit foundation, founded in 1969, that preserves and operates 103 historic churches, 2 synagogues, 9 towers, and 62 churchyards in Groningen province, funded by donations, government subsidies, and venue rental, and supported by 700 volunteers and 6,000+ donors.

Ownership category

akta.pro rank

Product category

Heritage Preservation and Monument Conservation

NAICS

Historical Sites (712120), Museums (712110)

SIC

Operators Of Nonresidential Buildings (6512)

akta.pro primary industry

Historic Preservation & Landmarks Conservation (BPAGAHAE)

akta.pro secondary industries

Museums & Heritage Sites (History, Science, Specialty) (BPAGAHAA), Religious Landmarks & Pilgrimage Sites (Temples, Churches, Shrines) (THAJACAG)

Keywords

• Heritage preservation
• Monument conservation
• Historic church management
• Cultural heritage foundation
• Religious building restoration

Headquarters

HQ city

Groningen

HQ country

Netherlands

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Others

Revenue model

1. Donations and Membership: The organization relies heavily on contributions from over 6,000 donors who pay annual membership fees. Donors receive benefits including 20% discounts on Groninger Kerken publications and 25% discounts on venue rentals.
2. Legacies and Bequests: The organization actively encourages legacy gifts and bequests as a significant revenue stream, promoting Gift/Nalatenschap on their website.
3. Church Venue Rental: Churches are rented out for events, concerts, exhibitions, and celebrations. The 'Kerk als podium' (church as stage) initiative facilitates venue bookings. Donors receive 25% discount on rental rates.
4. Retail Sales: The webstore sells publications, merchandise, educational materials, and exclusive items including prints, books, CDs, tiles, and building plans.
5. Government Subsidies: As a POM (Professionele Organisatie voor Monumentenbehoud), the organization can apply for consolidated state subsidies for monument maintenance. Also receives earthquake reinforcement funding from IMG and NCG.
6. Pilgrimage Accommodation: Simple overnight accommodation in churches for pilgrims on designated routes, with a fee of €20 per person per night.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels8 records

Core offering

Stichting Oude Groninger Kerken (SOGK) preserves and maintains historic Rijksmonumentale (national monument) churches, synagogues, towers, and churchyards in the province of Groningen, Netherlands. Founded in 1969, the foundation manages approximately 103 churches, 2 synagogues, 9 standalone towers, and 62 churchyards, delivering professional monument maintenance, public access via local volunteer committees, cultural programming (concerts, exhibitions, pilgrim routes), venue rentals, and educational programs for schools and researchers.

Product overview

Stichting Oude Groninger Kerken (SOGK) is a heritage preservation foundation managing approximately 103 historic churches, 2 synagogues, 9 standalone towers, and 62 cemeteries in Groningen province. The organization operates a unified portfolio combining preservation services, digital knowledge resources, and public programming. Core offerings include the Kennisbank (knowledge bank) database, church venue rental services (De kerk als podium), educational programs (Schoolkerk), and an e-commerce web shop. Digital products include 360° panoramic photography and the searchable Kennisbank covering churches, organs, gravestones, and historical persons. The foundation also publishes the quarterly Groninger Kerken magazine and operates the Akerk as a flagship exhibition venue. Membership/donation programs support ongoing restoration work through initiatives like Actie Kerkbehoud.

Differentiator

Problem solved

Functional benefit

Products and services

• Kennisbank (Knowledge Bank) Specialized digital database providing extensive searchable information about churches, organs, gravestones, saints, persons, panoramic photography, stories, library catalog, technical terminology, and masterworks in Groningen province.
• De Kerk als Podium (Church as Stage) Venue rental service enabling historic churches to be booked for concerts, performances, exhibitions, weddings, and other cultural events. Donors receive 25% discount on rental rates.
• Webwinkel (Web Shop) Online store selling books about churches, graveyards, organs, and bells, educational materials for schools, and merchandise including tiles, map cards, CDs, and exclusive prints.
• De Puzzelkerk (The Puzzle Church) Educational lesson package for primary school groups 3-4 (ages 8-10) accompanying the book 'De kerk als tijdmachine'; children assemble a church collage using cut-out elements.
• De Kijkdooskerk (The Viewbox Church) Educational lesson package for primary school groups 5-6 (ages 10-12) where students create a viewbox with elements from the book 'De kerk als tijdmachine' and drawings of church components.
• De Kerk als Tijdmachine Illustrated picture book showing how churches were built and how buildings changed over centuries through 12 historical periods, by Martin Hillenga with drawings by Stefan de Keijser.
• Actie Kerkbehoud Annual fundraising campaign for specific restoration projects, including current focus on the 100th church (Mariakerk Uithuizermeeden) and restoration of the Rudolf Huinga epitaph.
• Tijdschrift Groninger Kerken Quarterly magazine for donors covering church history, art, architecture, and cultural heritage in Groningen; articles cover pulpits, patron saints, choir screens, bells, and other religious topics. Published since 1969.
• Titus Stipendium Research grant program supporting scholarly work on religious heritage in Groningen.
• Gouden Bomenfonds Fund dedicated to the preservation and planting of historic trees on church grounds and cemeteries.
• 360° Panoramafotografie Interactive 360-degree panoramic photography allowing virtual visits to churches from home, providing detailed interior views of historic buildings.
• Excursies Guided tours and excursions to historic churches and heritage sites.
• Pilgrimage Accommodation (Refugio) Simple overnight accommodation in churches for pilgrims on designated routes such as Het Ziltepad, with field beds, toilet, and cold running water, priced at €20 per person per night.
• Take Me To Church Youth engagement project involving young people in the programming of historic churches, with youth committees organizing their own events supported by professional cultural entrepreneurship guidance.
• Weet wat je zegt Citizenship education project organized in historic churches where students practice debating, presenting, and collaborating using current themes, partnered with Museum Catharijneconvent, Fries Verzetsmuseum, and Zuiderzeemuseum.
• Kerken in het Groen

Quantifiable outcome

• 14 churches seismically reinforced within the reinforcement area, with 15 more remaining (primarily vaulted churches)
• +2 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature4 records

Partnerships

14 partnerships are on record, tiered core and minor.

• Landschapsbeheer GroningencoreStrategic or Co-development Partner · 1 January 2025Strategic partner for the 'Kerken in het Groen' (Churches in the Green) project 2025-2027. Conducts cultural-historical and archaeological research, ecological QuickScans, restoration plans, and volunteer 'erfgoedbrigade' training. Also partnered for kerkeiland Spijk restoration and Westernieland churchyard work.
• IMG (Instituut Mijnbouwschade Groningen)coreStrategic or Co-development PartnerGovernment body coordinating earthquake damage compensation and church reinforcement. Working with NCG on seismic reinforcement of 14+ churches with 15 more remaining in the reinforcement area.
• NCG (Nationaal Coördinator Groningen)coreStrategic or Co-development PartnerNational Coordinator Groningen working with Groninger Kerken on monument reinforcement following earthquake damage.
• Edskes OrgelbaucoreImplementation/ SI/ Consulting PartnerOrgans restoration firm that performed restoration work on Harkstede Schnitger and Eertman organs, working alongside Orgelmakerij Reil and Orgelmakerij Bakker & Timmenga.
• Orgelmakerij ReilcoreImplementation/ SI/ Consulting PartnerOrgan building firm contributing to Harkstede organ restoration.
• Orgelmakerij Bakker & TimmengacoreImplementation/ SI/ Consulting PartnerOrgan building firm contributing to Harkstede organ restoration.
• Hans Fidom (VU Amsterdam)minorStrategic or Co-development PartnerProfessor at Vrije Universiteit Amsterdam serving as advisor for Schnitger organ restoration in Harkstede.
• Museum CatharijneconventcoreStrategic or Co-development PartnerNational heritage museum co-developing 'Weet wat je zegt' citizenship education project with Groninger Kerken, Fries Verzetsmuseum, and Zuiderzeemuseum as part of 'Weet wat je viert' program.
• Fries VerzetsmuseumcoreStrategic or Co-development PartnerPartner in 'Weet wat je zegt' citizenship education project.
• ZuiderzeemuseumcoreStrategic or Co-development PartnerPartner in 'Weet wat je zegt' citizenship education project.
• Groninger ArchievenminorStrategic or Co-development PartnerRegional archives partnership for 'Oorlog Dichtbij' exhibition on 80 years of freedom in Groningen.
• Museum aan de AminorStrategic or Co-development PartnerPartner for 'Oorlog Dichtbij' exhibition content and expertise.
• Oorlogs- en Verzetscentrum GroningenminorStrategic or Co-development PartnerWar and Resistance Center partnership for 'Oorlog Dichtbij' exhibition.
• Synagoge GroningenminorStrategic or Co-development PartnerPartnership for 'Oorlog Dichtbij' exhibition content.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• National Trust: UK conservation charity operating heritage properties, gardens, and historic houses through a membership-based, volunteer-supported model. Comparable in its donor-membership economy, volunteer committees, and cultural programming; materially larger but instructive as a scaled model of community-led heritage stewardship.
• English Heritage: UK charity managing over 400 historic sites including churches, abbeys, and monuments. Comparable at the model level (heritage stewardship, membership-funded, volunteer-supported, government subsidy-linked), though larger and broader in geographic scope.
• Natuurmonumenten: Largest Dutch nature conservation foundation with a comparable ANBI/CBF-erkend fundraising model, hundreds of thousands of members, and a vast portfolio of managed natural/cultural landscapes. SOGK's 'Kerken in het Groen' partnership with Landschapsbeheer Groningen and similar volunteer-driven model make this an instructive peer, though the asset class (nature vs. religious heritage) differs.

Direct peers

• Stichting Monumentenbezit: Dutch nonprofit foundation that acquires and preserves nationally listed monuments (rijksmonumenten), operating a similar model of property transfer, professional maintenance, and donor-supported restoration. Highly comparable as a peer-sized Dutch heritage preservation foundation managing a portfolio of historic buildings.
• Vereniging Hendrick de Keyser: Dutch association that acquires, restores, and rents out historic houses and buildings. Comparable to SOGK in its model of acquiring heritage properties from owners unable to maintain them and operating them as cultural assets with member support.

Others

• Landschapsbeheer Groningen: Strategic co-development partner on SOGK's 'Kerken in het Groen' (2025-2027) project for churchyard restoration. Comparable as a Dutch foundation managing cultural landscape heritage with volunteer brigades, though focused on broader landscape rather than built religious heritage.
• Stichting Open Monumentendag: Dutch national foundation coordinating the annual Open Monumentendag, in which SOGK is an active participant. Comparable as a heritage-mobilization and awareness-driving organization that channels visitor traffic to monument sites, though not a direct portfolio operator.
• Rijksdienst voor het Cultureel Erfgoed (Cultural Heritage Agency of the Netherlands): Dutch government agency that oversees rijksmonumenten policy and grants the POM status that SOGK holds. Functions as both a regulator and ecosystem partner for SOGK's monument preservation work; comparable as a counterparty rather than a competitor.

Regional players

• Stichting Werelderfgoed Nederland: Dutch foundation promoting and supporting UNESCO World Heritage sites in the Netherlands. Comparable in its ANBI status, donor-membership model, and heritage advocacy function, though focused on UNESCO-designated sites rather than dispersed religious heritage.

Emerging players

• Museum Catharijneconvent: National museum of religious heritage in Utrecht and direct program partner of SOGK on the 'Weet wat je zegt' citizenship education project. Comparable in its focus on religious/heritage objects and audiences; differs in being a single museum rather than a distributed heritage network.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/Dekerkalspodium
• Facebookfacebook.com/groningerkerken
• LinkedInlinkedin.com/company/stichting-oude-groninger-kerken
• Instagraminstagram.com/groningerkerken

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Stichting Oude Groninger Kerken