Bundesverband Kalksandsteinindustrie e.V.
Bundesverband Kalksandsteinindustrie e.V. is a German non-profit trade association founded in 1900 that represents Kalksandstein (calcium silicate brick) manufacturers, providing technical consulting, research, standardization, and political advocacy for the German masonry construction industry.
- Company typePrivate
- Founded1900
- HeadquartersHannover, Germany
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Bundesverband Kalksandsteinindustrie e.V. does
The Bundesverband Kalksandsteinindustrie e.V. (BV KSI) is a German non-profit trade association (eingetragener Verein) founded in 1900 in Berlin and headquartered in Hannover, Niedersachsen. It represents the interests of Kalksandstein (calcium silicate brick) manufacturing plants across Germany and supports the broader masonry construction industry. Its wholly-owned subsidiaries include Forschungsvereinigung Kalk-Sand e.V., which has conducted joint pre-competitive research since 1965, and Kalksandstein-Dienstleistung GmbH, the operational service company that runs the kalksandstein.de website, publications, and digital tools. The association is governed by a board chaired by Jan Dietrich Radmacher, with Roland Meißner serving as Managing Director over 11 employees.
The association's core product is the Kalksandstein masonry unit, manufactured from sand, lime, and water in approximately a 12:1 ratio, pressed into brick forms and cured via steam hardening in autoclaves. Calibrated to a single technical and sustainability standard, the material is the market leader in German multi-story residential construction, holding 34% share of completed residential buildings with 3+ units and ~38% of 55.41 million m³ of built volume in 2024 (per Destatis). It supports the product with the 16-chapter KALKSANDSTEIN Planungshandbuch (8th edition, 2025), the KS-Schallschutzrechner acoustic calculator, an academic youth sponsorship program, and the Kalksandstein-Gütesiegel and new Kalksandstein-Nachhaltigkeitsgütesiegel (KS-NGS) quality and sustainability labels.
The association generates revenue through membership contributions from ordinary Kalksandstein manufacturing plants and extraordinary associate members, operating through a hybrid GTM model combining a free digital self-serve layer (website downloadcenter, digital tools) with an enterprise field-sales layer delivered through eight Regionalvereine (regional associations) that provide direct technical consulting to architects, engineers, planners, and construction firms. The non-commercial model is explicitly oriented toward collective research, standardization, political advocacy, and shared marketing for member companies rather than product sales.
Bundesverband Kalksandsteinindustrie e.V. firmographics
Firmographics- Name
- Bundesverband Kalksandsteinindustrie e.V.
- Legal name
- Bundesverband Kalksandsteinindustrie e.V.
- Website
- https://kalksandstein.de
- Company type
- Private
- Founded year
- 1900
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Bundesverband Kalksandsteinindustrie e.V. is a German non-profit trade association founded in 1900 that represents Kalksandstein (calcium silicate brick) manufacturers, providing technical consulting, research, standardization, and political advocacy for the German masonry construction industry.
- Ownership category
- akta.pro rank
Bundesverband Kalksandsteinindustrie e.V. industry classification
Industry- Product category
- Building Materials Industry Association
- NAICS
- Other Similar Organizations (except Business, Professional, Labor, and Political Organizations) (813990)
- SIC
- Services-Membership Organizations (8600)
- akta.pro primary industry
- Certification Program Administration & Scheme Management (Standard Owners) (AFALACAC)
- akta.pro secondary industries
- Pre-Assessment, Gap Assessment & Certification Readiness Services (AFALACAE), Supplier Quality Assurance & Vendor Approval Programs (AFALALAB), Trade Compliance, Standards & Technical Barriers to Trade (TBT/SPS) (BPADAMAK)
Keywords
Where Bundesverband Kalksandsteinindustrie e.V. is headquartered
LocationHeadquarters
- HQ city
- Hannover
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Bundesverband Kalksandsteinindustrie e.V. business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Membership contributions: The association generates revenue through membership fees from ordinary members (Kalksandstein manufacturing plants/works) and extraordinary members (associate companies in the industry). The Bundesverband coordinates collective research, standardization, political advocacy, and marketing for member companies.
Go-to-market motion1 record
Distribution channels4 records
Marketing channels7 records
Bundesverband Kalksandsteinindustrie e.V. product offering
Product offeringCore offering
Bundesverband Kalksandsteinindustrie e.V. is a non-profit trade association representing German Kalksandstein (calcium silicate / sand-lime brick) manufacturers. It provides industry coordination, technical standards, sustainability certification (KS-NGS and Kalksandstein-Gütesiegel), free planning tools (such as the KS-Schallschutzrechner), the KALKSANDSTEIN Planungshandbuch, political advocacy, and joint pre-competitive research through its subsidiary Forschungsvereinigung Kalk-Sand e.V. Operations are supported by wholly-owned service subsidiary Kalksandstein-Dienstleistung GmbH.
Differentiator
Problem solved
Functional benefit
Products and services
- KALKSANDSTEIN Planungshandbuch (8th Edition) A comprehensive 16-chapter planning handbook for architects, engineers, construction professionals, and students covering statics (Eurocode 6), fire protection, acoustic insulation, thermal protection, building physics, and sustainability. Available as a free download via the website downloadcenter.
- Kalksandstein-Nachhaltigkeitsgütesiegel (KS-NGS) Sustainability Label An industry-wide uniform assessment procedure for determining and documenting the ecological performance of Kalksandstein products. Based on independent, standards-compliant life cycle assessments covering parameters including GWP, PENRT, PERT, ODP, EP, and POCP. Awarded to participating Kalksandstein manufacturing plants.
- Kalksandstein-Gütesiegel (Quality Seal) Quality seal for Kalksandstein products ensuring consistent quality standards across member manufacturing plants, with CE marking and performance declaration per DIN 20000-402.
- KS-Schallschutzrechner (Acoustic Protection Calculator) A digital tool for architects and engineers to calculate and verify acoustic insulation performance of Kalksandstein constructions. Available free online with expanded modules for double-skin party walls.
Quantifiable outcome
- 34% market share among all completed residential buildings with 3+ units in Germany (2024, Destatis)
- +5 more outcomes
Companies that use Bundesverband Kalksandsteinindustrie e.V.
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles4 records
Bundesverband Kalksandsteinindustrie e.V. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Bundesverband Kalksandsteinindustrie e.V. partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered major, core and minor.
- Emsländer Baustoffwerke GmbH & Co. KGmajorMember company of the Kalksandstein industry that invested approximately 10 million euros in PreFabWall serial prefabrication technology. Managed by Bernhard Göcking (also Chair of Forschungsvereinigung Kalk-Sand e.V.) and Cornelius de Boer. Hosted Lower Saxony Minister-President Olaf Lies for a site visit in March 2026 to demonstrate modern masonry prefabrication.
- Kalksandstein-Dienstleistung GmbHcoreA wholly-owned service company of the Bundesverband Kalksandsteinindustrie e.V. that provides operational services including the website (kalksandstein.de), publications, digital tools, and the member intranet. Handles day-to-day operations, IT services, and distribution of industry resources.
- Forschungsvereinigung Kalk-Sand e.V.coreThe research association of the Kalksandstein industry, conducting precompetitive joint research since 1965. Operates at the same Hannover location as the Bundesverband. Responsible for research projects on sustainability, lifecycle assessment, recarbonatization, recycling, and process optimization. Board chair is Bernhard Göcking of Emsländer Baustoffwerke. Zakaria Istanbuly serves as deputy head.
- Qualitätsgemeinschaft Mauerwerksprodukte e.V. (QMP)coreQuality association for masonry products that certifies and monitors quality standards across masonry product manufacturers in Germany. The Bundesverband Kalksandsteinindustrie is a member and supports its quality assurance mission.
- solid UNIT DeutschlandminorA network or association in the construction industry whose representatives participated in the Minister-President's visit to Emsländer Baustoffwerke. Tobias Riffel serves as Chairman of the board.
- Deutsche Gesellschaft für Mauerwerks- und Wohnungsbau e.V. (DGfM)coreThe German Society for Masonry and Housing Construction. The Bundesverband Kalksandsteinindustrie is a member and participates in industry advocacy through this organization. Dr. Hannes Zapf serves as a board member representing the association's interests in housing policy discussions, including at the annual Wohnungsbau-Tag.
- Baugewerbe-Verband NiedersachsenminorThe Lower Saxony Construction Industry Association. Its representative Matthias Wächter participated in the Minister-President's factory visit at Emsländer Baustoffwerke, representing the interests of construction companies that use Kalksandstein products.
- Bundesverband Baustoffindustrie Steine Erden e.V. (bbs)majorFederal Association of the Building Materials Industry. Collaborates with the Kalksandstein industry on political advocacy for CO2 recarbonatization recognition at the federal level in Berlin and Brussels.
- Universität Kassel - Fachgebiet Werkstoffe des Bauwesens und BauchemiemajorThe University of Kassel's Department of Building Materials and Construction Chemistry, led by Prof. Dr. Bernhard Middendorf. Conducts research on CO2 storage capacity of Kalksandstein and recarbonatization. Professor Middendorf is a member of the scientific advisory board of Forschungsvereinigung Kalk-Sand e.V.
- Dr. Sebastian Pohl / LCEE (Life Cycle Engineering Experts)majorLCA expert from Darmstadt who co-authored the holistic sustainability assessment study (Ganzheitliche Nachhaltigkeitsbewertung) for Kalksandstein multi-family buildings, demonstrating DGNB, BNG, and QNG compliance.
Scale indicators6 records
Recent moves6 records
Expansion highlights5 records
Bundesverband Kalksandsteinindustrie e.V. competitors and assessment
Company assessmentDirect peers
- Qualitätsgemeinschaft Mauerwerksprodukte e.V. (QMP): Cross-material masonry quality association in which BV KSI holds membership; performs overlapping certification and quality-monitoring functions for masonry producers including Kalksandstein, creating shared technical ground and joint advocacy.
- Bundesverband Porenbetonindustrie e.V. German autoclaved aerated concrete (AAC/Porenbeton) industry trade association serving the same architect/planner and developer audience with a competing masonry wall product, performing analogous Gütesiegel, EPD and code-compliance work.
- Bundesverband der Deutschen Ziegelindustrie e.V. German clay-brick industry trade association running parallel standardization, technical consulting, sustainability and policy advocacy for the closely substitutable clay masonry category that directly competes with Kalksandstein in multi-story residential construction.
- Deutsche Gesellschaft für Mauerwerks- und Wohnungsbau (DGfM) e.V. Umbrella society for masonry and housing construction in Germany of which BV KSI is a member; competes for representational authority at Wohnungsbau-Tag and on housing policy in Berlin, making it both a coordination partner and an institutional peer.
Emerging players
- Holzbau Deutschland – Bund Deutscher Zimmermeister im Zentralverband Deutsches Baugewerbe: Trade association for German timber construction contractors and carpenters actively promoting Holz/Hybridbau as a carbon-storing alternative to masonry in the multi-family segment where Kalksandstein is the current market leader.
Others
- Xella International GmbH: Europe's largest autoclaved aerated concrete manufacturer and a major Kalksandstein parent/operator in Germany; comparable as a large private-equity-owned building-materials producer operating in the same residential-construction value chain as BV KSI's members.
- H+H Deutschland GmbH: One of the leading Kalksandstein manufacturers in Germany and a member of BV KSI, whose Managing Director (Markus Blum) sits on the Bundesverband board; a useful peer for understanding the manufacturer economics that fund the association.
Broad incumbents
- Bundesverband Baustoffindustrie – Steine und Erden e.V. (bbs): Federal umbrella for the German building-materials, stones-and-soils industry; a long-standing coordination partner of BV KSI on recarbonatization advocacy and broader construction policy, but representing many materials beyond Kalksandstein.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Bundesverband Kalksandsteinindustrie e.V. social profiles
Digital presenceBundesverband Kalksandsteinindustrie e.V. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Bundesverband Kalksandsteinindustrie e.V. leadership team
Management profileNumber of profiles
Profiles3 records
Bundesverband Kalksandsteinindustrie e.V. subsidiaries and ownership
Company hierarchySubsidiaries2 records
Bundesverband Kalksandsteinindustrie e.V. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Bundesverband Kalksandsteinindustrie e.V. M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Bundesverband Kalksandsteinindustrie e.V.
What does Bundesverband Kalksandsteinindustrie e.V. do?
Bundesverband Kalksandsteinindustrie e.V. is a non-profit trade association representing German Kalksandstein (calcium silicate / sand-lime brick) manufacturers. It provides industry coordination, technical standards, sustainability certification (KS-NGS and Kalksandstein-Gütesiegel), free planning tools (such as the KS-Schallschutzrechner), the KALKSANDSTEIN Planungshandbuch, political advocacy, and joint pre-competitive research through its subsidiary Forschungsvereinigung Kalk-Sand e.V. Operations are supported by wholly-owned service subsidiary Kalksandstein-Dienstleistung GmbH.
Is Bundesverband Kalksandsteinindustrie e.V. a public or private company?
Bundesverband Kalksandsteinindustrie e.V. is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was Bundesverband Kalksandsteinindustrie e.V. founded?
Bundesverband Kalksandsteinindustrie e.V. was founded in 1900. It employs 11 to 50 people.
Where is Bundesverband Kalksandsteinindustrie e.V. based?
Bundesverband Kalksandsteinindustrie e.V. is headquartered in Hannover, Germany, in the Europe region.
How does Bundesverband Kalksandsteinindustrie e.V. make money?
One revenue line is on record: membership contributions.
Who are Bundesverband Kalksandsteinindustrie e.V.'s main competitors?
Direct peers on record are Qualitätsgemeinschaft Mauerwerksprodukte e.V. (QMP), Bundesverband Porenbetonindustrie e.V., Bundesverband der Deutschen Ziegelindustrie e.V. and Deutsche Gesellschaft für Mauerwerks- und Wohnungsbau (DGfM) e.V.. Holzbau Deutschland – Bund Deutscher Zimmermeister im Zentralverband Deutsches Baugewerbe is listed as an emerging player. Others are Xella International GmbH and H+H Deutschland GmbH. Bundesverband Baustoffindustrie – Steine und Erden e.V. (bbs) is listed as a broad incumbent.
Does Bundesverband Kalksandsteinindustrie e.V. have an API?
No public API is recorded for Bundesverband Kalksandsteinindustrie e.V..
What industry is Bundesverband Kalksandsteinindustrie e.V. in?
Bundesverband Kalksandsteinindustrie e.V.'s product category is Building Materials Industry Association. Its primary akta.pro industry code is AFALACAC, Certification Program Administration & Scheme Management (Standard Owners), with a secondary code of AFALACAE, Pre-Assessment, Gap Assessment & Certification Readiness Services. Its NAICS code is 813990 and its SIC code is 8600.