What Polem Composite silos & tanks does

Polem B.V. is a Netherlands-based, privately held industrial manufacturer founded in 1972 and headquartered in Lemmer, where it operates a single 10,000 m² production facility employing approximately 100 people. The company designs and builds custom composite (glass fiber reinforced plastic / GRP) silos and tanks for bulk storage of dry and liquid materials, manufactured as seamless one-piece units with mirror-smooth interior walls and available up to 9 meters in diameter and 1,500 m³ in capacity.

The product portfolio is built on proprietary lamination know-how accumulated over five decades and is differentiated by corrosion resistance, thermal insulation (λ = 0.17 W/m·K), 30–50 year service life, and an unusually broad certification stack covering ISO 9001:2015, ISP, DVS 1090/2220, TÜV water-protection, AbZ (DiBt), ATEX Zones 20/21/22, FDA, EU 10/2011, GMP+, QS, and VLOG. Core lines are Composite Silos and Composite Tanks, complemented by Mobile Silos, Pre-Wetting brine systems for winter road maintenance, an online configurator, and the proprietary Expert Check inspection service.

Revenue is generated primarily through one-time capital sales of custom-engineered units priced project-by-project (no public price list; 10–12 week lead time), with a recurring after-sales stream from inspections, spare parts, modifications, and installation/transport services. GTM is sales-led via five dedicated market specialists assigned per industry vertical (food, feed, agriculture, industry, winter service), augmented by an online configurator for agricultural customers and a Dutch dealer network (Versleijen Agri). The company serves enterprise and mid-market customers across food, animal feed, agriculture, paper & pulp, winter road maintenance, renewable energy, and general industry in more than 20 countries, with named logos including FrieslandCampina, Verborg Group, SFP Groningen, Raiffeisenagrar, Noordzee International, M.O.T.T., and P. Bos (a 45-year customer).

Name

Polem Composite silos & tanks

Legal name

Polem B.V.

Website

https://polem.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

101–250 employees

Short description

Polem B.V. is a Netherlands-based manufacturer founded in 1972 that designs custom composite (GRP) silos and tanks up to 9m diameter and 1,500 m³ for bulk storage, serving food, feed, agriculture, paper, winter road maintenance, renewable energy, and industrial customers across 20+ countries from its Lemmer production facility.

Ownership category

akta.pro rank

Headquarters

HQ city

Lemmer

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom silo and tank manufacturing and sales: Design, manufacture, and delivery of customized composite silos and tanks. Each unit is engineered to customer specifications including dimensions, capacity (up to 9m diameter, 1,500 m³), hopper angles, connections, and optional features. Lead time of 10-12 weeks for custom orders. One-time capital purchase model.
2. After-sales service, inspection, and spare parts: Ongoing revenue from inspection services (Expert Checks), damage repairs, modifications, spare parts supply, and maintenance contracts. Service team provides international support with travel costs charged for projects outside Netherlands.
3. Installation and transport services: Optional professional installation, assembly, and transport coordination services including permit handling. Offered as add-on to product sales.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Polem designs, manufactures, and delivers custom-built glass fiber reinforced plastic (GRP/GVK) silos and tanks for bulk storage of dry and liquid materials. Every unit is custom-engineered to customer specifications using seamless one-piece lamination, available up to 9m diameter and 1,500 m³ capacity, with configurable hopper angles, integrated fittings, and food-grade, ATEX, or chemical-resistant options tailored to the application.

Product overview

Polem is a manufacturer of composite (glass fiber reinforced plastic/GRP) silos and tanks for bulk storage of dry and liquid products. The core product portfolio consists of Composite Silos and Composite Tanks, both made from glass fiber reinforced plastic with seamless, mirror-smooth construction. Additional products include Mobile Silos for temporary or flexible applications, and Pre-Wetting Systems (brine/thaw systems) for winter road maintenance. The company also offers an Online Configurator for customers to design their own storage solutions, and an Expert Check Service for professional inspections and maintenance. Products serve multiple industries including food, feed, agriculture, paper & pulp, road salt/winter service, renewable energy, and general industry. All products are customizable with various sizes (up to 9m diameter, 1,500 m³ capacity), hopper angles, outlet systems, and accessories.

Differentiator

Problem solved

Functional benefit

Products and services

• Composite Silos

Quantifiable outcome

• Up to 30-50 year lifespan vs. steel alternatives requiring replacement after few years
• +5 more outcomes

Named customers10 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered minor.

• Versleijen AgriminorChannel Partner/ Reseller/ DistributorDutch agricultural dealer supplying and installing Polem composite feed silos at farms. Versleijen Agri handled delivery and professional installation of four Polem silos at a broiler farm, demonstrating a dealer-based distribution model for the Dutch agricultural market.
• B.V. Aaltens Constructiebedrijf (ACB)minorImplementation/ SI/ Consulting PartnerConstruction company providing auger system connections for silo installations. ACB handled full auger connections for a broiler farm project, ensuring functional integration between storage and feed distribution systems.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Assmann Corporation: US manufacturer of polyethylene bulk storage tanks and containment systems for industrial, agricultural, and chemical applications. Comparable custom-engineered storage solutions, focus on corrosion/chemical resistance, and industrial end-market overlap with Polem's products.
• Sintex Industries: Indian manufacturer of plastic and composite water and industrial storage tanks, serving agricultural, food, and chemical applications globally. Directly comparable to Polem in product type (composite tanks/silos), customer verticals (food, feed, agriculture), and customization model, though at much larger scale.
• Haase Tanks: German GRP tank manufacturer specializing in wastewater and industrial fluid storage. Comparable in material technology (glass-fiber reinforced plastic), European market focus, and custom tank fabrication for water, chemical, and industrial customers.
• ZCL Composites (Shawcor): Canadian manufacturer of composite underground storage tanks serving fuel, water, wastewater, and industrial markets. Highly comparable composite manufacturing technology, custom-engineered products, and emphasis on corrosion-resistance in industrial and chemical storage applications.
• Roth Werke (Roth Industries): German manufacturer of plastic composite tanks and storage systems for fuel oil, water, and industrial applications. Comparable composite/plastic tank technology, European focus, and similar custom-engineered solutions for industrial and energy customers.
• Containment Solutions (Shawcor): North American (formerly Xerxes) manufacturer of GRP underground and above-ground storage tanks for petroleum, water, and industrial chemicals. Closely comparable FRP composite tank technology, custom fabrication, and regulated-industry certifications, with similar applications in chemical and energy sectors.
• WOLF Technik: German manufacturer of bulk storage silos and material handling solutions for industrial applications. Directly competes in the silo and bulk storage space, with overlapping use cases in industrial bulk solids handling and comparable custom-engineering approach.
• Den Hartog Industries: US manufacturer of polyethylene tanks (blow-molded and rotational-molded) for agricultural, industrial, and chemical storage. Comparable in product form (custom liquid and bulk storage tanks), customer verticals (agriculture, industry), and durability-focused material technology.

Broad incumbents

• Kingspan Group: Irish building solutions group with water and energy storage products including hot water and rainwater storage tanks. Comparable in industrial storage/water tank market but operates as a broad incumbent across building envelopes, insulation, and multiple tank categories rather than Polem's focused silo/tank specialization.
• Mauser (Schütz/Bertsch): German industrial packaging and container manufacturer with broader portfolio including IBCs, drums, and tanks. Comparable in industrial storage equipment for chemicals and bulk materials, but operates a wider product range and larger scale than Polem's niche silo/tank focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Polem Composite silos & tanks