STULZ Deutschland

What STULZ Deutschland does

STULZ Deutschland (legal entity STULZ GmbH, headquartered at Holsteiner Chaussee 283, 22457 Hamburg) is the founding company and global headquarters of the STULZ Group, a privately held family-owned precision air conditioning manufacturer founded in 1947 by Albert Stulz. The group designs and manufactures mission-critical cooling systems, including room precision air conditioning units (CyberAir 3PRO), high-density rack-based and rear-door solutions (CyberRack Active Rear Door), liquid cooling systems, indoor air handling units (CyberWall, CyberHandler), water-cooled and air-cooled chillers with proprietary Free Cooling (CyberCool Free Cooling Booster, CyberCool WaterTec, Explorer WSW), outdoor cabinet and shelter cooling (CabinetAir PRT, WallAir, TelAir, SplitAir, ShelterAir FC), micro data centers, humidifiers, and monitoring/control electronics (C100, SEC.blue controllers supporting Modbus and BACnet IP BMS integration). Products are sold via direct enterprise field sales, a network of exclusive sales and service partners, and an e-commerce spare parts shop, serving colocation and cloud operators, hyperscale data centers, enterprise IT, telecom infrastructure, and adjacent verticals including transport, energy, manufacturing, finance, healthcare, and education across more than 140 countries. The business model combines customized engineered-to-order system sales, standard unit sales, and recurring professional services (consulting, implementation, maintenance, technical facility management, and test center validation), with pricing conducted on a project/configuration basis. STULZ operates 35 subsidiaries including 10 production sites globally and approximately 8,200 employees, ranks in the Top 3 global data centre cooling suppliers, and remains under the management of the Stulz family (Jürgen Stulz, Marc-Oliver Stulz, and Christoph Stulz as Managing Directors alongside Thorsten Weiss).

Name

STULZ Deutschland

Legal name

STULZ GmbH

Website

https://stulz.de

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

11–50 employees

Short description

STULZ Deutschland (STULZ GmbH) is the Hamburg-headquartered founding entity of the STULZ Group, a family-owned global manufacturer of precision air conditioning and cooling systems for data centers, telecommunications infrastructure, and mission-critical industrial applications, selling through 35 subsidiaries and partners in 140+ countries.

Ownership category

akta.pro rank

Product category

Precision Air Conditioning & Data Center Cooling

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Refrigeration & Service Industry Machinery (3580), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Cooling Systems & Thermal Management (CRAC/CRAH, Chillers, Liquid Cooling) (HDABAKAD)

akta.pro secondary industries

Facilities Operations & Maintenance (Power/Cooling/Mechanical) (HDABANAC), Chillers & Cooling Plant Equipment (IMAHAKAE)

Keywords

• Precision air conditioning
• Data center cooling
• Mission critical cooling
• Liquid cooling systems
• Free cooling chillers

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Air Conditioning Hardware: STULZ generates revenue through the sale of precision air conditioning units, including room cooling, high-density cooling, liquid cooling, chillers, air handling units, shelter cooling, and humidifiers. Products range from standard units to fully customized solutions.
2. Professional Services: Revenue from consulting, implementation, maintenance, facility management, and technical building management services. STULZ offers test center services for product testing under individual operating conditions.
3. Spare Parts and E-Commerce: STULZ operates an e-shop (eshop.stulz.com) for spare parts sales, enabling customers to purchase replacement components directly.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

STULZ Deutschland manufactures and sells precision air conditioning and cooling systems for data centers, telecommunications infrastructure, and other mission-critical applications. Its portfolio includes room cooling units, high-density and rack-based cooling, liquid cooling, micro data centers, air handling units, chiller units, shelter cooling, humidifiers, and proprietary monitoring/control systems, supported globally by consulting, implementation, maintenance, and test center services.

Product overview

STULZ offers a comprehensive portfolio of precision air conditioning and cooling solutions for data centers, telecommunications, and mission-critical applications. The product range spans from standard room cooling units (CyberAir 3PRO), high-density rack-based solutions (CyberRack Active Rear Door), liquid cooling systems, to custom air handling units (CyberWall, CyberHandler Custom). For telecommunications infrastructure, STULZ provides shelter cooling solutions including CabinetAir PRT, WallAir, TelAir, and SplitAir. The company also offers chiller units with free cooling technology (CyberCool Free Cooling Booster, CyberCool WaterTec, Explorer WSW), micro data centers, humidification systems, and monitoring/control solutions. Products support BMS integration via Modbus RTU, Modbus, and BACnet IP protocols. The portfolio is complemented by global services including consulting, test centers, implementation, and maintenance. STULZ emphasizes customization through its 'Climate. Customized.' philosophy, offering both standardized units and fully tailored solutions.

Differentiator

Problem solved

Functional benefit

Brands

• Climate. Customized. The company's product philosophy and tagline representing its approach to providing customized cooling solutions from standard units to fully tailored climate systems.
• CabinetAir
• CyberCool
• CyberCool Free Cooling Booster
• CyberWall
• CyberHandler
• WallAir
• TelAir
• SplitAir
• ShelterAir
• Explorer
• CyberAir 3PRO
• SEC.blue
• C100 Control System

Products and services

• CabinetAir PRT

Quantifiable outcome

• Energy savings up to 210,000 euros per year with CyberCool Free Cooling Booster (based on Hamburg temperature profile)
• +4 more outcomes

Named customers20 records

Segments13 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature6 records

Partnerships

One partnership is on record.

• riba:businesstalk GmbH (rbt:PressRoom)minorGTM or Marketing PartnerSTULZ partners with riba:businesstalk GmbH as their official press partner. The partnership establishes a dedicated pressroom for STULZ on the rbt:PressRoom platform, serving as a trusted source for latest news, press releases, and industry updates. This partnership ensures STULZ's innovations and milestones reach a wider audience through professional media distribution.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Vertiv Holdings: Vertiv is the most direct peer: a global specialist in critical digital infrastructure including precision air conditioning, thermal management, and liquid cooling for data centres. Direct competitor in the same product category with overlapping customer base among hyperscalers, colos, and enterprises.
• Rittal: Rittal (a Friedhelm Loh Group company) manufactures IT enclosures and liquid cooling packages (LCP) for data centres, directly competing with STULZ on rack-based and high-density cooling solutions. Strong in European enterprise and edge markets.
• Munters Group: Munters is a closely comparable specialist in precision air conditioning, evaporative cooling, and air handling for data centres, telecom and industrial customers. Direct competitor in mission-critical cooling with similar customer segments and a comparable sized global footprint.

Emerging players

• Submer: Submer provides immersion cooling solutions for hyperscale and HPC data centres. Represents the liquid cooling transition that could disrupt traditional precision air conditioning players like STULZ in the densest AI deployments.
• Asetek: Asetek is a specialised liquid cooling provider for high-performance computing, gaming and increasingly AI servers. While smaller and narrower than STULZ, Asetek is gaining share in direct liquid cooling for HPC and AI workloads where STULZ is also expanding.

Broad incumbents

• Trane Technologies: Trane Technologies is a global HVAC incumbent that addresses data centre cooling as part of its commercial HVAC portfolio. Competes with STULZ in commercial chillers and air handling units and serves similar enterprise and colocation customers at scale.
• Daikin Applied: Daikin Applied is the commercial HVAC arm of Daikin Industries and a major chiller and precision cooling competitor. Particularly strong in Europe through Daikin Europe; competes with STULZ on water-cooled and air-cooled chiller tenders for data centres.
• Alfa Laval: Alfa Laval supplies heat exchangers and liquid cooling / data centre fluid handling systems, increasingly relevant as data centres move to liquid cooling. Overlaps with STULZ on thermal management technology and large-scale cooling plant equipment.
• Schneider Electric: Schneider Electric's Secure Power division offers data centre cooling (formerly Uniflair) as part of a much broader portfolio spanning UPS, electrical distribution, and building management. Competes with STULZ on enterprise data centre tenders while also offering integrated infrastructure solutions.
• Eaton: Eaton's data centre thermal management offering (including the recently acquired LiquidCool Solutions) competes with STULZ on high-density and liquid cooling, particularly in North American hyperscale and enterprise markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/STULZGmbH
• Facebookfacebook.com/STULZGmbH
• LinkedInlinkedin.com/company/stulz-deutschland
• Instagraminstagram.com/stulz_gmbh
• TikToktiktok.com/@stulz_gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries10 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 STULZ Deutschland