What STULZ USA does

STULZ USA (legal name: STULZ Air Technology Systems, Inc.) is the North American operating subsidiary of Germany-based STULZ Group, headquartered in Frederick, Maryland. The company designs, manufactures, and services precision cooling and humidity control equipment for mission-critical environments, with primary focus on data centers, colocation facilities, and telecom infrastructure. Its core product portfolio spans Computer Room Air Conditioners (CRACs) and Computer Room Air Handlers (CRAHs) with cooling capacities from 3kW to over 1MW, custom air handling units, ultrasonic humidification systems (DRH and DAH product lines) with claimed 93% energy savings versus steam alternatives, and Coolant Distribution Units (CDUs) for direct-to-chip and hybrid liquid cooling applications supporting AI and high-density GPU workloads. Product families include CyberRow (row-based cooling), CeilAir (ceiling-mounted), Fan Wall Systems (50-100MW support), and the STULZ E² Controller for integrated monitoring.

STULZ USA operates three US manufacturing facilities—Frederick MD (headquarters), Dayton TN (opened 2025), and Denton TX (300,000 sq ft, completion Spring 2027)—performing in-house engineering, metal stamping, electrical wiring, powder coating, controls programming, piping, and testing. The company employs approximately 500-650 people in the US (over 5,000 globally across the parent group) and serves markets across the USA and Canada through a direct enterprise sales rep network, supported by 24/7 technical support and factory startup services.

Revenue is generated primarily through one-time equipment sales of custom-engineered cooling and humidification units, supplemented by recurring extended warranty subscriptions and professional services (factory startup, commissioning, BMS integration, diagnostics, and repair). Pricing is quote-based and not publicly disclosed, with contract structures aligned to multi-year enterprise deployments. The go-to-market is enterprise field sales targeting hyperscale data center operators, colocation and cloud providers, telecom facilities, and industrial mission-critical applications, supported by thought-leadership content marketing via the Tuesdays at 2 webinar series and technical white papers.

Name

STULZ USA

Legal name

STULZ Air Technology Systems, Inc.

Website

https://stulz-usa.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

251–500 employees

Short description

STULZ USA is a US subsidiary of Germany's STULZ Group that designs, manufactures, and services precision cooling and humidity control equipment (CRACs, CRAHs, CDUs, ultrasonic humidifiers) for data centers, colocation, telecom, and industrial mission-critical facilities across North America.

Ownership category

akta.pro rank

Product category

Data Center Precision Cooling Equipment

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

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

akta.pro secondary industries

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG), Facilities Operations & Maintenance (Power/Cooling/Mechanical) (HDABANAC), Chillers & Cooling Plant Equipment (IMAHAKAE)

Keywords

• Precision cooling systems
• Data center cooling
• Humidity control equipment
• Computer room air conditioning
• Liquid cooling solutions

Headquarters

HQ city

Frederick

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Cooling Equipment Sales: Sale of precision air conditioners, air handlers, and cooling systems. Products are custom-designed and purpose-built for mission-critical applications. Equipment ranges from 3kW to over 1MW cooling capacity.
2. Ultrasonic Humidification Systems: Sale of Direct Room Humidifiers (DRH) and Duct/Air Handler Humidifiers (DAH) for humidity control in mission-critical environments.
3. Technical Support and Field Services: Factory startup services, diagnostic and repair services for warranty and non-warranty equipment, BMS integrations, commissioning assistance, and extended warranty programs.
4. Extended Warranties: Extended warranty programs that extend standard warranty by one additional year when using STULZ factory startup services. Includes parts coverage and standard/expedited shipping.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

STULZ USA designs, manufactures, and supports precision cooling and humidity control equipment for mission-critical environments in North America. The portfolio includes computer room air conditioners (CRACs), computer room air handlers (CRAHs), air handling units, ultrasonic humidifiers (DRH and DAH), and coolant distribution units (CDUs) for liquid cooling. Equipment is custom-designed and purpose-built for data centers, colocation/cloud facilities, telecom infrastructure, and industrial applications, with cooling capacities ranging from 3 kW to over 1 MW.

Product overview

STULZ USA offers a comprehensive portfolio of precision cooling and humidity control solutions for mission critical applications. The core product portfolio includes CRAC (Computer Room Air Conditioner) and CRAH (Computer Room Air Handler) units ranging from 3 kW to over 1 MW cooling capacity, Air Handling Units, and ultrasonic humidification systems (Direct Room Humidifiers and Duct/Air Handler Humidifiers). Supporting the liquid cooling trend, STULZ provides Coolant Distribution Units (CDUs) for direct liquid-to-chip and hybrid cooling solutions. Specialized product lines include CeilAir (ceiling mounted units), CyberRow (row-based cooling), and Fan Wall systems. The company also offers the STULZ E2 Controller for integrated system monitoring. These products work together to provide complete climate control solutions for data centers, telecom facilities, and industrial applications, with capabilities spanning air cooling, liquid cooling, and precision humidity control.

Differentiator

Problem solved

Functional benefit

Products and services

• CRAC (Computer Room Air Conditioner) Precision air conditioning units for data centers and mission-critical environments, providing constant cooling with sensible heat ratio of 0.90 to 1.0 for high-density heat loads. Capacities range from 3 kW to 1080 kW.

Quantifiable outcome

• 93% energy savings with ultrasonic humidification compared to steam humidifiers
• +4 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered core.

• Tennessee College of Applied Technology (TCAT) DaytoncoreStrategic or Co-development Partner · 4 March 2024STULZ USA and TCAT Dayton created a comprehensive training program where HVAC students receive hands-on training. The partnership bridges the gap between industry needs and workforce development, providing students with specialized skills and industry certifications. STULZ recruits skilled graduates from TCAT Dayton to join its workforce, particularly at the Dayton, TN manufacturing facility.
• ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers)coreStrategic or Co-development PartnerSTULZ USA employees, particularly Director of Technology Dave Meadows, participate actively in ASHRAE committees including SSPC 90.4 (Energy Standard for Data Centers), SPC 127 (Method of Testing for Rating Computer and Data Processing Room Unitary Air Conditioners), and TC 9.9 (Mission Critical Facilities, Data Centers, Technology Spaces and Electronic Equipment).
• AHRI (Air-Conditioning, Heating, and Refrigeration Institute)coreStrategic or Co-development PartnerDave Meadows participates in the AHRI data com standards committee, contributing to industry standards development for data center cooling technologies.

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Emerging players

• Asetek: Asetek is a specialist liquid cooling provider targeting gaming, HPC, and data center markets with sealed-loop and direct-to-chip solutions. Asetek represents an emerging competitor focused specifically on the liquid cooling segment where STULZ has positioned with its CDU products.
• Munters: Munters provides humidity control and air treatment solutions including ultrasonic humidifiers (competing directly with STULZ's DRH/DAH products) for data centers and industrial applications. Munters overlaps with STULZ in the specialty humidification segment for mission-critical environments.

Broad incumbents

• Carrier: Carrier is a global HVAC and refrigeration equipment manufacturer whose commercial cooling products address data center and industrial applications. Carrier competes with STULZ in commercial/industrial refrigeration and air conditioning equipment markets.
• Johnson Controls: Johnson Controls provides building HVAC and data center cooling solutions as part of its broader building technologies portfolio. JCI's York and Hitachi-branded chillers and precision cooling products overlap with STULZ's larger-capacity CRAH and chiller plant offerings.
• Trane Technologies: Trane Technologies is a major HVAC equipment manufacturer whose commercial/industrial cooling portfolio overlaps with STULZ's mission-critical precision cooling business. Trane competes for larger-scale data center cooling projects with broader service and installed-base capabilities.
• Schneider Electric: Schneider Electric offers data center cooling and infrastructure as part of its broader portfolio (including APC, Uniflair) for power, cooling, and IT management. STULZ competes with Schneider on cooling specifications within larger bundled infrastructure deals with enterprise and hyperscale customers.
• Eaton: Eaton provides data center infrastructure including power and thermal management solutions as part of its broad electrical portfolio. While not a precision cooling specialist, Eaton overlaps with STULZ in mission-critical facility cooling for enterprise and colocation customers.

Direct peers

• CoolIT Systems: CoolIT Systems specializes in direct liquid-to-chip cooling (CDUs and cold plates) for high-performance computing and AI data centers. STULZ and CoolIT both target the AI/GPU liquid cooling opportunity, and STULZ has even hosted joint webinars with CoolIT on direct liquid cooling ROI.
• Vertiv: Vertiv is the closest direct competitor to STULZ in precision cooling and thermal management for data centers, offering CRAC/CRAH units, liquid cooling systems, and integrated infrastructure. Both companies compete head-to-head for hyperscale, colocation, and enterprise data center cooling contracts in North America.
• Rittal: Rittal manufactures data center cooling solutions (including CRAC units, IT cooling, and liquid cooling systems) and enclosures as part of its IT infrastructure portfolio. Rittal competes directly with STULZ for cooling capacity in European and North American data center deployments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/STULZ_USA
• YouTubeyoutube.com/c/Stulz-usa
• Facebookfacebook.com/STULZUSA
• LinkedInlinkedin.com/company/stulz-usa
• Instagraminstagram.com/stulzusa

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 USA