GSN Gebäudesicherheit Nord

What GSN Gebäudesicherheit Nord does

GSN Gebäudesicherheit Nord GmbH is a German building security and fire protection engineering firm headquartered in Oldenburg, Lower Saxony. Founded in February 1999 as a joint venture between EWE AG and Oldenburgische Landesbrandkasse, it now operates as a subsidiary of EWE AG, a major northern German energy utility. The company delivers integrated security solutions spanning fire alarm systems, intrusion detection, video surveillance, access control, electronic locking systems (notably the eCLIQ platform from ASSA ABLOY), time recording, security fog technology, and turnstiles. It holds a dense certification stack — TÜV Rheinland, VdS, BHE, DIN 14675 (fire alarm), and DIN EN 16763 (security services) — that qualifies it for regulated enterprise, government, and KRITIS (critical infrastructure) projects, and it maintains technology partnerships with Telenot, Hekatron, ASSA ABLOY, dormakaba, and GEZE for the underlying hardware layer.

The company serves a diversified customer base across aviation (Flughafen Bremen), manufacturing (Cordes, Klingele Paper), energy (EWE AG), construction and real estate (Goldbeck Nord), hospitality (Hotel Prinz Heinrich), and the public sector (schools, municipalities) across northern Germany, with offices in Oldenburg, Bremen, and Delmenhorst. Its business model combines project-based installation work with recurring maintenance and inspection contracts, the latter providing a stabilizing revenue base on top of lumpy project revenue. With more than 100 employees, GSN has been recognized as a Top Mittelständer 2024, certified Great Place to Work 2026, and certified under the Clean Advantage CO2-reduction program in 2026, reflecting sustained regional scaling rather than hyper-growth.

Name

GSN Gebäudesicherheit Nord

Legal name

GSN Gebäudesicherheit Nord GmbH

Website

https://gsn-gmbh.de

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

51–100 employees

Short description

GSN Gebäudesicherheit Nord GmbH is a German building security engineering firm specializing in fire protection, intrusion detection, video surveillance, and access control systems. Headquartered in Oldenburg, it serves enterprise, government, and KRITIS customers across northern Germany as a subsidiary of energy utility EWE AG.

Ownership category

akta.pro rank

Product category

Building Security Systems Integration

NAICS

Security Systems Services (56162), Security Systems Services (except Locksmiths) (561621)

SIC

Electrical Work (1731), Services-Engineering Services (8711)

akta.pro primary industry

Fire Protection Systems Contracting (Sprinklers, Alarms, Suppression) (IMAFALAD)

akta.pro secondary industries

Low-Voltage & Security Systems Contracting (Access Control, CCTV, Intrusion) (IMAFALAF), Fire Alarm Systems (Design/Install/Service/Monitoring) (BPABAHAA), Emergency & Exit Lighting / Egress Systems Testing & Maintenance (BPABAHAF)

Keywords

• Building security systems
• Fire protection engineering
• Access control installation
• Intrusion alarm systems
• Video surveillance integration

Headquarters

HQ city

Oldenburg

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Security Systems Planning and Consulting: GSN provides specialist planning for fire protection and security systems, acting as an engineering office for brandschutz (fire protection) and security technology. Planning services include fire protection concepts, Gefahrenmeldeanlagen (hazard detection systems), and integrated security concepts. Revenue is project-based, typically tied to building construction or renovation projects.
2. Installation and Construction of Security Systems: GSN installs and commissions security technology systems including fire alarm systems, intrusion detection, video surveillance, access control, extinguishing systems, and security lighting. Installation is provided as an Errichter (installer) certified by TÜV Rheinland and VdS. Revenue is project-based (one-time) per installation.
3. Maintenance and Service Contracts: GSN provides ongoing maintenance services and regular inspections for all installed systems. The company also offers fire protection training for employees, building inspections, and risk analyses as part of comprehensive service contracts. This provides recurring revenue from existing customer base.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

GSN Gebäudesicherheit Nord GmbH is a certified engineering office and installer that plans, installs, commissions and maintains integrated building security systems — including fire alarm systems (Brandmeldeanlagen), intrusion alarm systems (Einbruchmeldeanlagen), video surveillance (Videoüberwachung), access control (Zutrittskontrolle), time recording (Zeiterfassung), extinguishing systems (Löschanlagen), voice alarm systems and electronic locking systems (eCLIQ) — for commercial, industrial, public and critical-infrastructure buildings in northern Germany.

Product overview

GSN Gebäudesicherheit Nord is an engineering firm for fire protection and installer for security technology with over 100 employees. The company offers a comprehensive portfolio of integrated building security solutions comprising fire protection consulting and planning, fire alarm systems (BMA), intruder alarm systems (EMA), video surveillance (VÜA), access control, time recording, voice alarm systems, extinguishing systems, fire brigade connections, electronic locking systems (eCLIQ), security lighting, and related services. The product portfolio is organized around the core security disciplines of fire protection and electronic security, with services ranging from initial consultation and fire protection concept development through installation, commissioning, and ongoing maintenance. The company operates as a certified planner and installer according to DIN 14675 for fire alarm systems and holds multiple certifications including VdS, BHE, and TÜV for various security disciplines.

Differentiator

Problem solved

Functional benefit

Products and services

• Beratung & Planung (Consulting & Planning) Certified specialist planning services for fire alarm systems and voice alarm systems per DIN 14675, including security concept consulting and cross-trade security system planning for building projects.
• Brandschutz (Fire Protection) Complete fire protection service covering consulting, planning, implementation and maintenance of fire protection concepts and systems, including external fire protection officer (Brandschutzbeauftragter) services for organizations.
• Brandschutzkonzepte (Fire Protection Concepts) Fire protection concepts optimized for operating costs and business processes, including evacuation and smoke extraction plans, visualizations, and cost-efficient approval-planning support by certified TÜV fire protection experts.
• Brandmeldeanlagen (Fire Alarm Systems) Planning and installation of fire alarm systems per DIN 14675, including automatic and manual fire detectors, fire brigade connections (Feuerwehraufschaltung) and smoke extraction systems.
• Sprachalarmanlagen (Voice Alarm Systems) Voice alarm systems planned and installed in combination with fire alarm systems per DIN 14675 and fully certified to EN 54 and all relevant safety standards.
• Einbruchmeldeanlagen (Intrusion Alarm Systems) VdS-certified intruder alarm systems with security classes A, B or C per VdS standards, including project planning, installation and VdS attestation, primarily using Telenot technology.
• Videoüberwachungsanlagen (Video Surveillance Systems) Planning and installation of video surveillance systems including interior, exterior and open-air monitoring, live image control, video alarm verification, thermal cameras and GDPR-compliant camera configurations up to 30 megapixels.
• Zutrittskontrolle (Access Control) BHE-certified planning and installation of access control systems including biometric access control, video-supported access verification via license plate recognition, with integration into time recording, canteen billing and parking systems.
• Zeiterfassung (Time Recording) Electronic time recording systems for reliable recording of working hours, breaks and vacation days, helping avoid payroll errors and complying with minimum wage law and EU Court of Justice requirements.
• Löschanlagen / Feuerlöschanlagen (Extinguishing Systems) Consulting and installation of permanently operational fire extinguishing systems using water, water mist, foam, carbon dioxide, inert gas, chemical and powder extinguishing agents.
• Sicherheitsbeleuchtung (Security Lighting) Planning, project design, installation, maintenance and repair of security lighting systems combining security technology, electrical engineering and mechanical door/metal construction with normative building and occupational safety requirements.
• Feuerwehraufschaltung (Fire Brigade Connection) Installation and operation of alarm transmission devices for fire alarm systems connected directly to the fire brigade in the city of Bremen.
• Elektronische Schließanlage eCLIQ Electronic locking system based on ASSA ABLOY CLIQ technology featuring electronic locking cylinders, programmable IP67-rated waterproof keys with chips, up to 200,000 maintenance-free cycles, compliant with DIN 15684:2021 and optionally VdS 2156-2.

Quantifiable outcome

• Over 100 employees across Oldenburg, Bremen, and Delmenhorst locations
• +2 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core.

• TelenotcoreTechnology or IntegrationTelenot is GSN's partner for intrusion alarm systems (Einbruchmeldeanlagen). GSN is an authorized Telenot support point, providing installation, maintenance, and service for Telenot security products including intrusion detection systems and security technology components.
• Hekatron GmbHcoreTechnology or IntegrationHekatron is GSN's partner for fire alarm systems (Brandmeldeanlagen). The partnership covers planning, installation, and maintenance of Hekatron fire detection equipment as part of GSN's comprehensive fire protection offerings.
• ASSA ABLOY Sicherheitstechnik GmbHcoreTechnology or IntegrationASSA ABLOY is GSN's partner for access control and time recording systems (Zutritts- und Zeiterfassungssysteme). GSN is a certified CLIQ competency partner, offering the eCLIQ electronic locking system based on ASSA ABLOY's CLIQ technology.
• dormakabacoreTechnology or Integrationdormakaba is GSN's partner for access control and time recording systems (Zutritts- und Zeiterfassungssysteme). GSN is listed as a dormakaba Executive Solution Partner, providing installation and service for dormakaba door hardware and access control solutions.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Minimax Viking Group: Germany-based global fire protection specialist offering fire detection, suppression, and service contracts across commercial and industrial customers. Directly comparable to GSN's fire alarm and Löschanlagen offering, with a broader geographic footprint and similar integrated service model.
• WAGNER Group GmbH: German fire protection and security systems integrator headquartered in Langenhagen, offering fire detection, suppression, and integrated security solutions for commercial and industrial customers. Closest direct peer to GSN in the German Mittelstand fire/security integrator market with similar manufacturer-independent model and certification-driven approach.
• Schrack Seconet AG: Austrian-headquartered specialist in fire alarm, voice alarm, and integrated security systems with strong presence in German-speaking markets. Comparable to GSN as a certified DIN 14675 fire alarm specialist with project-based delivery to commercial and institutional customers.

Broad incumbents

• Siemens Smart Infrastructure: Large incumbent with extensive fire safety, security, and building automation portfolio serving global enterprise customers. Competes with GSN in larger commercial and industrial projects where Siemens' BMS integration and global delivery capability are decisive.
• Bosch Building Technologies: Global incumbent offering fire alarm, intrusion, video surveillance, access control, and building management systems as part of a broad portfolio. Overlaps with GSN's full stack across all security disciplines, but operates at vastly larger scale and competes more often as an OEM than a regional integrator.
• Honeywell Building Technologies: Global incumbent offering fire alarm, intrusion, video, access control, and integrated building management solutions. Competes with GSN in enterprise fire/security integration projects, especially in regulated and critical infrastructure verticals.
• Johnson Controls: Global building technologies incumbent spanning fire detection, suppression, HVAC, security, and smart building management. Comparable to GSN's integrated building security approach but operates at much larger scale with proprietary product lines and global service coverage.

Regional players

• Kieback&Peter GmbH & Co. KG: Berlin-based building automation and security specialist serving German and European commercial customers. Adjacent competitor to GSN in integrated building management and security, with stronger automation focus but similar Mittelstand positioning.
• Elektro Beckhoff GmbH: German regional electrical contracting and security systems specialist based in NRW, offering electrical installation, fire alarm, and security integration. Comparable as a mid-sized regional German systems integrator competing in adjacent territory to GSN.
• Securitas Technology (formerly Niscayah): German arm of Securitas' technology division offering integrated security solutions including access control, video surveillance, and intrusion systems. Comparable to GSN in commercial security integration but typically plays in larger enterprise accounts and operates a more centralized delivery model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCFWFNcTvn_46jLQcIqCA6Yw
• Facebookfacebook.com/GSN.Gebaeudesicherheit.Nord

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 GSN Gebäudesicherheit Nord