Passavant-Geiger
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.
- Company typePrivate
- Founded1884
- HeadquartersAhrbergen, Germany
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
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.
Passavant-Geiger firmographics
Firmographics- 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
Passavant-Geiger industry classification
Industry- 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
Where Passavant-Geiger is headquartered
LocationHeadquarters
- HQ city
- Ahrbergen
- HQ country
- Germany
- HQ region
- Europe
Offices3 records
Markets served
Passavant-Geiger business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D
Revenue model
- 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.
- 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
Passavant-Geiger product offering
Product offeringCore 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
Companies that use Passavant-Geiger
Customer profileNamed customers11 records
Segments4 records
Ideal customer profiles2 records
Passavant-Geiger technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Passavant-Geiger partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Drake & Scull InternationalcorePassavant 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
Passavant-Geiger competitors and assessment
Company assessmentBroad 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
Passavant-Geiger social profiles
Digital presencePassavant-Geiger compliance and trust
Trust signalCompliance3 records
Passavant-Geiger financial estimates
Financial estimateRevenue estimate
Valuation estimate
Passavant-Geiger leadership team
Management profileNumber of profiles
Profiles1 record
Passavant-Geiger subsidiaries and ownership
Company hierarchySubsidiaries2 records
Passavant-Geiger funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Passavant-Geiger M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Passavant-Geiger
What does Passavant-Geiger do?
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.
Is Passavant-Geiger a public or private company?
Passavant-Geiger is a private company. It is classified as private equity controlled and is currently operating.
When was Passavant-Geiger founded?
Passavant-Geiger was founded in 1884. It employs 101 to 250 people.
Where is Passavant-Geiger based?
Passavant-Geiger is headquartered in Ahrbergen, Germany, in the Europe region.
How does Passavant-Geiger make money?
Two revenue lines are on record. Water Treatment Equipment Sales are the primary driver. The others are professional Services.
Who are Passavant-Geiger's main competitors?
Broad incumbents on record are Xylem, Veolia Water Technologies and Andritz. Direct peers are Huber SE, Sulzer, SSI Aeration, WesTech Engineering, Aqua-Aerobic Systems, JAEGER Group (A-J Environmental) and Supratec.
Does Passavant-Geiger have an API?
No public API is recorded for Passavant-Geiger.
What industry is Passavant-Geiger in?
Passavant-Geiger's product category is Water and Wastewater Treatment Equipment. Its primary akta.pro industry code is IMAHAEAJ, Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems), with a secondary code of IMAHAEAB, Separation & Filtration Equipment (Filters, Centrifuges, Membranes). Its NAICS code is 33391 and its SIC code is 3550.