Caltra Nederland

What Caltra Nederland does

Caltra Nederland B.V. is a Netherlands-based specialty manufacturer founded in 1984 by Ludo van Nes, headquartered in Mijdrecht near the Port of Rotterdam. The company develops, produces, and sells cementitious additives and functional mineral raw materials for the construction and industrial sectors, organized around three core chemistries: Calcium Sulphoaluminate (C.S.A.), Amorphous Calcium Aluminate (A.C.A.), and Calcium Aluminate (C.A.). Its branded product families are CALUMEX C.S.A. (binders, expanding agents, and accelerated cements such as Calumex Quick, E.A., QX-P, Extra Rapid, SC-A), CALIGHT (high-alumina cements at 40%, 50%, and 70% Al2O3), A.C.A. (super-accelerators and retarders including Calumex SC-A, XT-20, Delta 20, AFX-50, and UPC White), and a Gypsum/Metakaolin line (CALCAST 100/200/300, Metacal 3000, Anhydrite Super). These are sold as bagged, big-bag, or bulk industrial inputs to construction-chemistry customers, with an emphasis on low-carbon clinker and supplementary cementitious materials (SCMs) targeting cement-industry decarbonization.

The company operates three production facilities in the Netherlands with a fourth under construction, and ships directly to customers across Europe, North and South America, Northern Africa, Asia, and the Middle East. Its go-to-market is sales-led B2B, supported by a basic digital presence (website, Twitter, YouTube product videos, email newsletters) and ISO 9001:2015 and ISO 14001:2015 certifications awarded by DNV in 2025. Operational leadership transitioned from the founder to his children, Daniëlle M. Hemmink-van Nes and Stephan P. van Nes, in 2013, and both continue to lead the company following the May 2025 strategic transaction in which Kerakoll S.p.A. acquired a 60% majority stake while the founding family retained 40% and operational control.

Name

Caltra Nederland

Legal name

Caltra Nederland B.V.

Website

https://caltra.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Caltra Nederland B.V. is a Netherlands-based specialty manufacturer of cementitious additives and mineral binders (C.S.A., A.C.A., C.A., gypsum, metakaolin) serving construction-chemistry and industrial customers globally from Mijdrecht near the Port of Rotterdam.

Ownership category

akta.pro rank

Product category

Construction Chemicals

NAICS

Cement Manufacturing (327310), Cement Manufacturing (32731), Lime and Gypsum Product Manufacturing (3274)

SIC

Cement, Hydraulic (3241), Concrete, Gypsum & Plaster Products (3270)

akta.pro primary industry

Cementitious Binders & Additives (Fly Ash, Slag, Silica Fume, Lime) (IMADAAAH)

akta.pro secondary industries

Cement Manufacturing (Portland, Blended & Specialty) (IMADAAAG), Mortar, Grout & Masonry Cements (IMADABAL)

Keywords

• Cementitious additives
• Mineral binders
• Calcium sulphoaluminate binders
• High alumina cements
• Construction chemicals

Headquarters

HQ city

Mijdrecht

HQ country

Netherlands

HQ region

Europe

Offices1 record

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. Mineral Binders and Functional Raw Materials: Manufacturing and supply of high-quality mineral binders and functional raw materials for the construction industry. Products are used in wide range of construction solutions and industrial applications.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Caltra Nederland B.V. is a manufacturer and developer of specialty cementitious additives and high-quality mineral binders and functional raw materials for the construction industry. Products are based on Calcium Sulphoaluminate (C.S.A.), Amorphous Calcium Aluminate (A.C.A.), and Calcium Aluminate (C.A.) chemistries, including accelerators, retarders, expanding agents, high alumina cements, gypsum-based modelling plasters, and metakaolin.

Product overview

Caltra Nederland B.V. is a manufacturer and supplier of high-quality mineral binders and functional raw materials for the construction industry. The product portfolio is organized into four main sub-brands: (1) A.C.A. (Amorphous Calcium Aluminate) line featuring accelerators and retarders including Calumex SC-A, Calumex XT-20, Delta 20, AFX-50, and Calumex UPC White; (2) CALIGHT (High Alumina Cements) offering calcium aluminate cements with varying Al2O3 content including Calight 40 (40%), Calight 50 (50%), and Calight 70 (70%); (3) CALUMEX C.S.A. (C.S.A. based binders) providing cement additives and expanding agents such as Calumex Quick, Calumex E.A., Calumex QX-P, Calumex Extra Rapid, and Calumex SC-A; and (4) Gypsum and Metakaolin products including CALCAST modelling plasters (100, 200, 300 grades) and Metacal 3000. These cementitious additives are based on Calcium Sulphoaluminate (C.S.A.), Amorphous Calcium Aluminate (A.C.A.), and Calcium Aluminate (C.A.) chemistries, serving various construction solutions and industrial applications.

Differentiator

Problem solved

Functional benefit

Brands

• A.C.A. (Amorphous Calcium Aluminate): Amorphous Calcium Aluminate products including super accelerators, retarders, and flash alumina set accelerators.
• CALIGHT
• CALUMEX C.S.A.
• Gypsum and Metakaolin

Products and services

• Calumex Quick
• Calumex E.A.
• Calumex QX-P
• Calumex Extra Rapid
• Calumex SC-A
• Calumex XT-20
• Delta 20
• AFX-50
• Calumex UPC White
• Calight 40
• Calight 50 (N)
• Calight 70
• CALCAST 100
• CALCAST 200
• CALCAST 300
• Metacal 3000
• Anhydrite Super

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Almatis: Specialty calcium aluminate cement producer with a global footprint. Closely comparable to Caltra's high-alumina CALIGHT range (40–70% Al2O3) and serves overlapping construction and refractory customer segments.
• Kerneos (Imerys Aluminates): Global leader in calcium aluminate cement and CSA-based binders under the Imerys Group. Directly comparable product portfolio and chemistries to Caltra's CALIGHT and CALUMEX C.S.A. lines, serving the same construction and refractory end-markets.
• Kerakoll Group: Italian B Corp building-materials group and Caltra's 60% majority owner since May 2025. Directly comparable green-building chemistry portfolio and now parent/distribution partner; serves overlapping construction and sustainable-building customers.
• Calucem: Specialty calcium aluminate cement manufacturer competing head-to-head with Caltra in CSA/CA-based binders for construction chemistry and infrastructure applications. Similar product positioning and European production base.

Broad incumbents

• Fosroc: International construction-chemicals company with cement admixtures, grouts, and repair products. Competes with Caltra's mortar/grout-grade CSA and CA additives across infrastructure and commercial construction.
• Mapei: Large international construction-chemicals manufacturer producing cement additives, mortars, and admixtures. Comparable customer base but a much broader product portfolio than Caltra's specialty binder focus.
• Sika AG: Global construction-chemicals incumbent offering a broad portfolio that includes cement admixtures and specialty binders. Larger, publicly listed competitor with deeper distribution but less focus on CSA/ACA niche chemistries central to Caltra.
• CHRYSO (Saint-Gobain): Saint-Gobain subsidiary supplying cement additives and admixtures for construction. Competes with Caltra in cement chemistry solutions, with greater scale and brand reach but a wider product mix.
• BASF Master Builders Solutions: Global construction-chemicals division of BASF offering cement and concrete admixtures. Overlaps with Caltra in cement-additive markets, with materially larger R&D and distribution resources.

Emerging players

• Denka Company: Japanese chemical manufacturer producing specialty cements including calcium aluminate and CSA-type binders. Comparable chemistries to Caltra with a regional Asia focus less developed in Caltra's footprint.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/caltranederland
• Facebookfacebook.com/caltra.nederland

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Caltra Nederland