F.B. Leopold
F.B. Leopold, a brand of Xylem since 1924, designs and supplies filtration and clarification systems—including Filterworx, elimi-NITE, Type XA Underdrain, and Oxelia—for municipal drinking water, municipal wastewater, and industrial water treatment customers worldwide.
- Company typePrivate
- Founded1924
- HeadquartersZelienople, United States
- Headcount5,001–10,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What F.B. Leopold does
F.B. Leopold is a filtration and clarification brand within Xylem's water technology portfolio, focused on municipal and industrial water and wastewater treatment. Founded in 1924, Leopold has accumulated more than 10,000 installations worldwide and supplies gravity media filtration, denitrification, underdrain, and ozone-enhanced biofiltration systems to public utilities and industrial operators. Its core product line includes the Filterworx Performance Filter (reducing backwash water usage and cycle time), the elimi-NITE 2.0 Denitrification System (targeting nitrogen and phosphorus removal for ecosystem restoration), the Type XA Underdrain, and the Oxelia oxidation-enhanced biologically active filtration system for water reuse applications.
F.B. Leopold firmographics
Firmographics- Name
- F.B. Leopold
- Legal name
- Leopold (brand of Xylem)
- Website
- https://fbleopold.com
- Company type
- Private
- Founded year
- 1924
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- F.B. Leopold, a brand of Xylem since 1924, designs and supplies filtration and clarification systems—including Filterworx, elimi-NITE, Type XA Underdrain, and Oxelia—for municipal drinking water, municipal wastewater, and industrial water treatment customers worldwide.
- Ownership category
- akta.pro rank
F.B. Leopold industry classification
Industry- Product category
- Water and Wastewater Treatment Equipment
- NAICS
- Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Water, Sewage and Other Systems (2213)
- akta.pro primary industry
- Separation & Filtration Equipment (Filters, Centrifuges, Membranes) (IMAHAEAB)
- akta.pro secondary industries
- Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ), Filtration (Rapid/Slow Sand, Media, Membrane Pretreatment) (EUANABAB), Effluent Polishing & Filtration (MBR/UF/RO/GAC) (EUANADAL)
Keywords
Where F.B. Leopold is headquartered
LocationHeadquarters
- HQ city
- Zelienople
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
F.B. Leopold business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Water Treatment Equipment & Systems Sales: Sale of filtration and clarification systems including Filterworx, elimi-NITE, Type XA underdrains, and Oxelia systems. Revenue is generated through equipment sales for new installations, retrofits, and upgrades of municipal and industrial water treatment infrastructure. Projects range from $12 million to over $90 million in contract value.
- Aftermarket Parts & Services: Replacement parts, consumables, and service support for installed base of 10,000+ filtration systems worldwide. Xylem operates eCommerce platform for parts and consumables including activated carbon, cartridge filters, ion exchange resins, UV lamps, and chemical feeders.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based equipment pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
F.B. Leopold product offering
Product offeringCore offering
F.B. Leopold designs and manufactures gravity media filtration, denitrification, and ozone-enhanced biofiltration systems for municipal drinking water and wastewater treatment plants. Operating as a heritage brand of Xylem since 1924, the company has installed more than 10,000 filtration systems globally for utilities and industrial water customers.
Product overview
F.B. Leopold, a brand of Xylem since 1924, offers a portfolio of water and wastewater treatment products centered on filtration and clarification technologies. The core product lineup includes the Filterworx Performance Filter (gravity media filter with reduced backwash requirements), elimi-NITE Denitrification System (for nitrogen/phosphorus removal), Type XA Underdrain (filter media support system), and Oxelia Ozone-Enhanced Biofiltration System (for water reuse applications). These products serve municipal drinking water treatment, municipal wastewater treatment, water reuse, and desalination pretreatment. The company also provides sludge collection and backwash water recovery systems. With over 10,000 installations worldwide, Leopold positions its offerings as cost-reducing solutions that improve water quality.
Differentiator
Problem solved
Functional benefit
Brands
- FilterWorx: Performance filter for gravity media filtration systems
- elimi-NITE
- Oxelia
Products and services
- Filterworx Performance Filter Gravity media filtration system engineered for municipal drinking water treatment and industrial water clarification applications.
- elimi-NITE Denitrification System Denitrification filtration system used in wastewater treatment plants for biological nitrate removal to meet nutrient discharge limits.
- Type XA Underdrain Proprietary filter underdrain component for gravity media filters that supports uniform backwash distribution and media retention.
- Oxelia System for Reuse or Sensitive Waters Ozone-enhanced biofiltration system designed for water reuse applications and treatment of sensitive source waters requiring advanced contaminant removal.
Quantifiable outcome
- Backwash water usage reduced from 150,000-200,000 gallons per cycle to significantly lower levels with Filterworx system
- +2 more outcomes
Companies that use F.B. Leopold
Customer profileNamed customers2 records
Segments5 records
Ideal customer profiles2 records
F.B. Leopold technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
F.B. Leopold partnerships and signals
Strategic signalScale indicators3 records
Recent moves5 records
Expansion highlights5 records
F.B. Leopold competitors and assessment
Company assessmentDirect peers
- Aqua-Aerobic Systems: Manufactures water and wastewater treatment equipment for municipal and industrial applications, including filtration, clarification, and biological treatment — a close competitor in Leopold's core segments.
- Schreiber LLC: Provides water and wastewater treatment systems and services for municipalities and industrial customers, including filtration and biological treatment technologies overlapping Leopold's offerings.
- Smith & Loveless: Designs and manufactures wastewater treatment and pumping systems for municipal and industrial applications — a focused, comparable competitor in Leopold's wastewater treatment niche.
- WesTech Engineering: Designs and supplies water and wastewater treatment equipment including filtration and clarification systems for municipal and industrial customers — directly comparable product portfolio to Leopold's Filterworx and underdrain offerings.
- De Nora: Global supplier of water treatment technologies including filtration, disinfection, and electrochemical systems serving municipal drinking water and wastewater utilities, directly overlapping Leopold's customer base.
- Parkson Corporation: Provides municipal and industrial water and wastewater treatment equipment, including filtration and separation technologies, with comparable go-to-market into US municipal utilities.
Broad incumbents
- Pentair: Diversified water treatment and flow-control company serving residential, commercial, and industrial/municipal customers; overlaps with Leopold in filtration and treatment solutions but at much broader scale.
- Severn Trent Services: Global water and wastewater solutions provider offering treatment systems, equipment, and services to utilities and industrial customers — broader portfolio player competing with Leopold on municipal contracts.
- Veolia Water Technologies: One of the largest global water-technology providers offering integrated treatment systems, services, and chemicals to municipal and industrial customers — a broader incumbent competing with Leopold on large bundled tenders.
Others
- Evoqua Water Technologies (now Xylem): Previously an independent direct peer in municipal/industrial water treatment, now part of Xylem (Leopold's parent) — included as a comparable historical competitor rather than an active market peer.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
F.B. Leopold social profiles
Digital presenceF.B. Leopold financial estimates
Financial estimateRevenue estimate
Valuation estimate
F.B. Leopold leadership team
Management profileNumber of profiles
F.B. Leopold funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
F.B. Leopold 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 F.B. Leopold
What does F.B. Leopold do?
F.B. Leopold designs and manufactures gravity media filtration, denitrification, and ozone-enhanced biofiltration systems for municipal drinking water and wastewater treatment plants. Operating as a heritage brand of Xylem since 1924, the company has installed more than 10,000 filtration systems globally for utilities and industrial water customers.
Is F.B. Leopold a public or private company?
F.B. Leopold is a private company. It is classified as corporate owned and is currently operating.
When was F.B. Leopold founded?
F.B. Leopold was founded in 1924. It employs 5,001 to 10,000 people.
Where is F.B. Leopold based?
F.B. Leopold is headquartered in Zelienople, United States, in the North America region.
How does F.B. Leopold make money?
Two revenue lines are on record. Water Treatment Equipment & Systems Sales are the primary driver. The others are aftermarket Parts & Services.
Who are F.B. Leopold's main competitors?
Direct peers on record are Aqua-Aerobic Systems, Schreiber LLC, Smith & Loveless, WesTech Engineering, De Nora and Parkson Corporation. Broad incumbents are Pentair, Severn Trent Services and Veolia Water Technologies. Evoqua Water Technologies (now Xylem) is listed as an others.
Does F.B. Leopold have an API?
No public API is recorded for F.B. Leopold.
What industry is F.B. Leopold in?
F.B. Leopold's product category is Water and Wastewater Treatment Equipment. Its primary akta.pro industry code is IMAHAEAB, Separation & Filtration Equipment (Filters, Centrifuges, Membranes), with a secondary code of IMAHAEAJ, Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems). Its NAICS code is 333413.