What DOYMA does

DOYMA GmbH & Co. KG, headquartered in Oyten, Germany, is a private specialty manufacturer of building penetration sealing systems, fire protection systems, heat-pump lead-throughs, and multi-service house lead-ins. Founded in 1964, the company sells to construction contractors, HVAC installers, and fire-protection engineers across Germany, Austria, the Netherlands, France, and Italy via a network of 2,407 registered dealers and a certified Service Partner program.

The product portfolio is organized into four core families: Dichtungssysteme (Sealing Systems) centered on the Curaflex Nova registered trademark line of sealing inserts for pipe and cable penetrations through concrete and masonry; Brandschutzsysteme (Fire Protection Systems) under the Curaflam and ZZ trademarks covering collars, wrap bands, combinations, and cartridge materials; Wärmepumpeneinführungen (Heat Pump Lead-Throughs) under the DOYMAfix brand for residential heat-pump installations; and Bauherrenpakete (Builder Packages) under the Quadro-Secura trademark for multi-utility house lead-ins. Underlying technical differentiation rests on a suite of proprietary mechanisms - the ITL torque limiter, the DOYMA-GRIP age-resistant elastomer compound, the DDE pluggable diameter-extension modules, the DPS double-profile sealing, and the Turn-Stop and STS systems - all supported by DVGW, FHRK, DIBt, and DIN certifications.

DOYMA generates revenue via quote-based B2B sales of certified components through its dealer channel, supplemented by technical consultation, BIM data services, and custom engineering (Sonderkonstruktionen). The company is privately held under founder/partner ownership, with no institutional investor or parent company disclosed. Pricing is not publicly listed; a distinctive 25-year warranty (above statutory requirements) and EcoVadis sustainability assessment participation reinforce its positioning as a high-quality, standards-driven niche supplier rather than a commodity vendor.

Name

DOYMA

Legal name

DOYMA GmbH & Co. KG

Website

https://doyma.de

Company type

Private

Founded year

1964

Operating status

Operating

Headcount range

51–100 employees

Short description

DOYMA is a German specialty manufacturer of certified sealing, fire-protection, and heat-pump penetration systems for buildings, selling through 2,407 dealers to contractors, HVAC installers, and fire-safety professionals across Germany and four other Western European markets.

Ownership category

akta.pro rank

Headquarters

HQ city

Oyten

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Distribution channels3 records

Marketing channels5 records

Core offering

DOYMA manufactures sealing and fire protection systems for building penetrations. Its portfolio includes Curaflex Nova sealing inserts for waterproof and gastight pipe and cable penetrations, Curaflam fire protection collars, wrap bands and closure systems, Quadro-Secura house lead-in systems for utility connections, and DOYMAfix heat pump penetrations for residential renewable energy installations. The company also offers custom engineered solutions, BIM data, and a 25-year warranty.

Product overview

DOYMA is a leading manufacturer of sealing and fire protection systems for building penetrations. The product portfolio centers on three core product families: (1) Dichtungssysteme (Sealing Systems) featuring Curaflex Nova® sealing inserts for waterproof and gastight sealing of pipe and cable penetrations through concrete and masonry; (2) Brandschutzsysteme (Fire Protection Systems) under the Curaflam® brand including collars, wrap bands, and closure systems for fire-rated building penetrations; and (3) Wärmepumpeneinführungen (Heat Pump Lead-Throughs) under the DOYMAfix brand for renewable energy infrastructure. The company also offers Bauherrenpakete (Builder Packages) with Quadro-Secura® house lead-in systems for multi-service utility entry points, plus Sonderkonstruktionen (Custom Solutions) for project-specific requirements. Supporting services include BIM data, technical consultation, and a unique 25-year warranty. DOYMA serves the construction industry through a network of 2407 registered dealers, with products used in landmark projects including the Elbphilharmonie, DANUBEFLATS, and Airbus facilities.

Differentiator

Problem solved

Functional benefit

Brands

• Curaflam®: Fire protection systems including collars, wrapping bands, combinations, and cartridge material for sealing penetrations in case of fire.
• Quadro-Secura®
• Curaflex Nova®
• DOYMAfix®
• Aquagard
• ZZ®-Schottsysteme

Products and services

• Curaflex Nova Sealing Inserts Sealing inserts for waterproof and gastight sealing of pipe and cable penetrations through concrete and masonry, including variants for retrofittable installation, blind closure, and wide seals for double/element walls. Features the proprietary ITL torque limiter system and DOYMA-GRIP elastomer. Sold to construction contractors and building planners.
• Curaflam Fire Protection Systems Fire protection product family including Curaflam Manschetten (collars), Wickelbänder (wrap bands), Kombinationen (combinations), Kartuschenmaterial (cartridge material), and ZZ-Schottsysteme closure systems for sealing pipe penetrations in fire-rated walls and floors to prevent fire and smoke spread.

Quantifiable outcome

• 25-year warranty on products (exceeding legal requirements)
• +3 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Nine partnerships are on record, tiered core, minor and moderate.

• FHRK e.V. (Fachverband Hauseinführungen für Rohre und Kabel)coreOthersDOYMA is a member of FHRK e.V. (Professional Association for House Lead-ins for Pipes and Cables), participating in industry standards development and technical guidelines including FHRK Guideline MB 101 for radon protection.
• AGFW | Der Energieeffizienzverband für Wärme, Kälte und KWK e. V.minorOthersEnergy efficiency association for heating, cooling and combined heat and power. DOYMA supports energy-efficient building standards through their products.
• DVGW (Deutscher Verein des Gas- und Wasserfaches e.V.)coreTechnology or IntegrationTechnical-scientific association for gas and water. DOYMA products hold DVGW certification for gas and water applications, providing regulatory compliance.
• Bundesverband Wärmepumpe (BWP) e. V.minorOthersGerman Heat Pump Association. DOYMA offers heat pump introduction systems and partners with the association for market development.
• bvfa - Bundesverband Technischer Brandschutz e.V.minorOthersGerman Technical Fire Protection Association. DOYMA develops and manufactures fire protection systems certified to relevant standards.
• FSK – Fachverband Schaumkunststoffe und Polyurethane e. V.minorOthersProfessional association for foam plastics and polyurethane. DOYMA produces sealing materials incorporating these materials.
• IRO Institut für Rohrleitungsbau an der Fachhochschule Oldenburg e.V.minorStrategic or Co-development PartnerInstitute for pipe construction at the University of Applied Sciences Oldenburg. DOYMA collaborates on technical standards and testing.
• DIN - Deutsches Institut für Normung e. V.minorOthersGerman Institute for Standardization. DOYMA products comply with DIN standards for building construction and sealing applications.
• ACOmoderateStrategic or Co-development PartnerDOYMA has formed a partnership with ACO for the ideal package for heat pump installation, combining DOYMA's sealing expertise with ACO's drainage and building elements.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Würth: German-headquartered global leader in fastening and assembly materials with a large direct-sales dealer network. Würth's construction chemicals, sealants, and fire protection portfolio overlaps with DOYMA's building penetration and sealing offerings.
• Hilti: Liechtenstein-based global construction technology and tool giant. While Hilti is a much broader player in fastening, firestop, and building protection systems, it competes in the firestopping and structural penetration sealing category where DOYMA's Curaflam line operates.
• Fischer: German family-owned manufacturer of fixing systems, sealants, and fire protection products. Fischer's firestop and facade fixing product lines directly overlap with DOYMA's Curaflam fire protection and Quadro-Secura utility lead-in systems.
• Walraven: Dutch-headquartered global manufacturer of fixing, fire protection, and sanitary systems. Walraven's BIS fire protection and pipe sealing products compete with DOYMA's fire-stop and sealing portfolio in European commercial construction.
• Promat: Part of the Etex Group, Promat specializes in passive fire protection products and systems including penetration seals. As a major firestopping player, it competes with DOYMA's Curaflam brand in certified fire-rated penetration solutions.
• Hilti CFS: Hilti's firestop systems (CFS) division is a direct global competitor to DOYMA's Curaflam products in firestopping collars, wrap systems, and tested penetration seal assemblies, often specified on the same projects.

Direct peers

• CSD Sealing Systems: UK-based manufacturer of sealing systems for pipes and cables through walls and floors. CSD directly competes with DOYMA's Curaflex Nova product line in the penetration sealing category with similar elastomer-based technology.
• Hauff-Technik: German specialist in cable and pipe entries, building penetrations, and sealing technology. Hauff-Technik is a closely comparable German competitor to DOYMA, sharing the same regulatory environment, customer base, and product categories (sealing inserts, house lead-ins, fire protection).
• Roxtec: Swedish specialist in cable and pipe penetration sealing systems for buildings, marine, and industrial applications. Roxtec is the most direct global peer to DOYMA, offering modular seal systems for water-, gas-, and fire-tight building penetrations with comparable technology and customer segments.

Regional players

• ACO: German-based leader in drainage and building elements. ACO is both a partner (via joint heat pump installation package) and adjacent competitor in the building envelope space, with complementary rather than fully overlapping products in penetration sealing.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/DOYMAGmbHCo

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 DOYMA