Passavant-Geiger

What Passavant-Geiger does

Passavant-Geiger GmbH is a German-headquartered (Aarbergen) designer and manufacturer of water and wastewater treatment equipment, operating under the Aqseptence Group (private-equity-owned, currently by Clearwell Capital) alongside parent-affiliate Drake & Scull International. The company's portfolio is organized under three legacy brands: Geiger for water intake screening solutions (bar screens, fine screens, MultiDisc® travelling water screens, JOIS™ submerged offshore intakes, and fish-protection systems); Passavant for biological and advanced wastewater treatment (Mammutrotor® surface aerators, Roeflex/Bioflex fine-bubble aeration, Hydrograv® Adapt tank scraping, and PAC/MCF/GAC tertiary filtration); and Noggerath for mechanical pre-treatment (drum screens, spiral sieves, screenings wash presses, and grit treatment systems). Technology is differentiated through proprietary screening architectures (e.g., disc-type MultiDisc, JOIS passive intake screens with automated backwash), corrosion protection for seawater service, and over 2,000 Geiger installations across demanding environments including nuclear (Waterford, USA), desalination (Marina East, Singapore; Barka Phase 4, Oman), waste-to-energy (Dublin), refining (Yanbu), and municipal wastewater plants (Munich, Helgoland, Tanta Egypt).

The business model is hardware-centric B2B engineering and equipment supply, complemented by a high-value aftermarket service stream. Passavant-Geiger sells custom-engineered capital equipment through direct enterprise field sales via regional offices and representatives in Germany, Italy, and the UAE, with project inquiries handled regionally and equipment manufactured primarily at the Aarbergen facility. Revenue mechanics include equipment sales (project-based, with individual contracts such as the ~$19.9M Tanta Egypt sub-contract) plus an installed-base-driven service business handling installation, commissioning, retrofits, modernizations, spare parts, and remote monitoring (4,000+ assembly assignments annually). Customer segments span municipal wastewater utilities (primary), industrial water intake (power, refining, manufacturing), desalination (RO pre-treatment), and potable water treatment — served under long-tail custom-engineering contracts across Europe, the Middle East, Africa, North America, and Asia.

The company has been DIN ISO 9001-certified since 1994 and maintains three registered trademarks (Geiger®, Passavant®, Noggerath®) plus protected sub-brand marks (JOIS™, MultiDisc®, Mammutrotor®, Hydrograv®). Distribution is direct-enterprise; pricing is project-quoted rather than list-based. No AI/ML capabilities are disclosed, and the company historically traces to three 19th-century firms (Geiger 1891, Passavant 1884, Noggerath 1884) consolidated through mergers in 1999–2005 and rebranded under Aqseptence Group ownership.

Name

Passavant-Geiger

Legal name

Passavant-Geiger GmbH

Website

https://passavant-geiger.com

Company type

Private

Founded year

1884

Operating status

Operating

Headcount range

101–250 employees

Short description

Passavant-Geiger GmbH is a German-based designer and manufacturer of water and wastewater treatment equipment under the Geiger, Passavant, and Noggerath brands. It supplies screens, aerators, scrapers, and filtration systems to municipal utilities, industrial facilities, desalination plants, and power generators worldwide.

Ownership category

akta.pro rank

Product category

Water and Wastewater Treatment Equipment

NAICS

Pump and Compressor Manufacturing (33391)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industry

Separation & Filtration Equipment (Filters, Centrifuges, Membranes) (IMAHAEAB)

Keywords

• Wastewater treatment equipment
• Water screening systems
• Aeration technology
• Filtration equipment
• Mechanical pretreatment

Headquarters

HQ city

Ahrbergen

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Water Treatment Equipment Sales: Manufacture and sale of water intake, screening, aeration, filtration, and wastewater treatment equipment under Geiger, Passavant, and Noggerath brands. Products include bar screens, drum screens, travelling band screens, aerators, scrapers, and related machinery.
2. Professional Services: Installation, commissioning, repair, maintenance, and spare parts supply for machines and systems. Service includes assembly/installation, start-up, repairs, maintenance, retrofits, modernization, and remote monitoring.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Passavant-Geiger manufactures mechanical and process equipment for water and wastewater treatment. The company designs and produces screening machines, aeration systems, filtration systems, and scraping/sedimentation solutions under three product brands (Geiger, Passavant, and Noggerath) for municipal and industrial customers.

Product overview

Passavant-Geiger is a water treatment equipment manufacturer operating under the Aqseptence Group umbrella. The company offers three main brands—Geiger (water intake screening solutions), Noggerath (mechanical pre-treatment equipment), and Passavant (aeration, filtration, and scraping technologies)—providing comprehensive solutions for water intakes, pumping stations, mechanical pre-treatment, and secondary/advanced wastewater treatment. The product portfolio includes bar screens, travelling band screens, drum screens, spiral sieves, grit treatment systems, aeration systems (Mammutrotor, Roeflex, Bioflex), scraper technology for circular and longitudinal tanks, activated carbon filtration, and cathodic corrosion protection. Products serve municipal and industrial sectors across desalination, power, potable water treatment, and wastewater treatment applications globally.

Differentiator

Problem solved

Functional benefit

Brands

• Geiger: Leading provider of water intake solutions for power plants, desalination, irrigation, and drinking water treatment plants. Products include bar screens, travelling band screens, and MultiDisc systems for filtration.
• Noggerath
• Passavant

Products and services

• Screening Machines
• Aeration Systems
• Filtration Systems
• Scraping and Sedimentation Solutions

Quantifiable outcome

• Over 2,000 highly sensitive plants worldwide equipped with Geiger® screening machines
• +3 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Drake & Scull InternationalcoreStrategic or Co-development Partner · 14 May 2026Passavant is a wholly owned subsidiary of Dubai-listed Drake & Scull International. Passavant delivers strong performance across Europe, Asia, and North Africa under this parent company. Drake & Scull reported Q1 2026 revenue of AED77 million with Passavant subsidiary contributing significantly to infrastructure and water treatment project execution.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Xylem: Global water technology leader offering pumps, treatment, and analytics across municipal and industrial water. Direct competitor in aeration and screening markets, with significantly larger scale and broader product portfolio.
• Veolia Water Technologies: Global water treatment solutions provider offering equipment, services, and EPC across municipal and industrial customers. Competes with Passavant-Geiger in screening, aeration, and broader wastewater treatment packages.
• Andritz: Austrian engineering group with significant separation and water/wastewater treatment equipment business. Overlaps with Passavant-Geiger in screening, thickening, and municipal water equipment.

Direct peers

• Huber SE: German-based manufacturer of water and wastewater treatment equipment including screens, grit removal, and sludge handling. Closely comparable mid-sized competitor with overlapping municipal/industrial customer base in Europe.
• Sulzer: Swiss industrial engineering group supplying pumps, separation, and mixing/aeration equipment for water and wastewater. Directly competes with Passavant-Geiger in microporous aeration and adjacent treatment equipment.
• SSI Aeration: Manufacturer of fine-bubble and coarse-bubble aeration systems for municipal and industrial wastewater. Named alongside Passavant-Geiger in microporous aerator market share data.
• WesTech Engineering: US-based manufacturer of water and wastewater treatment equipment including screens, aeration, and clarification. Comparable product portfolio serving municipal and industrial customers in North America and internationally.
• Aqua-Aerobic Systems: US-based manufacturer of aeration, mixing, and biological treatment equipment for municipal wastewater. Direct competitor in microporous aeration and broader activated sludge process equipment.
• JAEGER Group (A-J Environmental): Provider of aeration, biological treatment, and wastewater process equipment. Competes with Passavant-Geiger in the same microporous aerator competitive set.
• Supratec: Specialist in fine-bubble aeration and diffusers for municipal wastewater treatment. Direct competitor explicitly identified in the same microporous aerator market share grouping.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCD4GrEp_bdP0eTkmS5DaSPQ
• LinkedInlinkedin.com/company/aqseptence-group
• Instagraminstagram.com/passavantgeiger

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 Passavant-Geiger