What Terwa does

Terwa is a Dutch-headquartered industrial manufacturer of metal components for the precast concrete and construction sectors, founded in 1995 and headquartered in IJsselstein, the Netherlands. Its core offering comprises patent-protected rebar coupler families (PSA female, TSE male, ALC Alligator, plus transition, double, and bent variants), TEC end connectors, lifting systems (1D, 2D, 3D anchors), fixing systems, fastening plates, and special products, all backed by more than a dozen national and international certifications (ETA, DIBt, KOMO, CARES, AFCAB, BENOR, IGQ, AVIZ, BPS-BTI, RISE, SPSC, EUROFINS) plus ISO 9001 and ISO 14001 quality and environmental management. Production runs on a 10,000 m² ultramodern facility in Cristian near Brașov, Romania, operating 7 days/week across three shifts with 250+ qualified employees, supplemented by a mobile on-site rebar threading service. Distribution and technical sales offices are located in the Netherlands, Romania, China, India, and Poland.

Name

Terwa

Legal name

Terwa B.V.

Website

https://terwa.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

101–250 employees

Short description

Terwa is a Dutch-headquartered manufacturer of metal components for the precast concrete industry, specializing in patent-protected rebar couplers and lifting systems, with Romanian production and sales offices across Europe, China, India, and Poland.

Ownership category

akta.pro rank

Product category

Precast Concrete Construction Components

NAICS

Plate Work and Fabricated Structural Product Manufacturing (33231), Fastener, Button, Needle, and Pin Manufacturing (339993)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Rebar Fabrication & Reinforcing Products (IMADACAH)

Keywords

• Rebar connection systems
• Precast concrete components
• Lifting anchor systems
• Construction fastening plates
• Metal fixing solutions

Headquarters

HQ city

Ijsselstein

HQ country

Netherlands

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Metal Components for Construction: Manufacture and sale of metal components including fixing systems, lifting systems, reinforcement systems, special products, fastening plates, and precast concrete systems. B2B model selling to precast manufacturers and construction companies globally.
2. Engineering and Technical Services: Terwa Service Portal provides project drawings, calculations, BIM object library access, technical engineering support. Mobile unit services for on-site coupler pressing.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Terwa designs, manufactures, and sells metal hardware components for the precast concrete and construction industry, including reinforcement bar couplers (PSA, TSE, ALC families), lifting systems (1D, 2D flat anchor, 3D T-slot), fixing systems, fastening plates, special products, and precast concrete systems. The portfolio is supported by complementary torque wrenches, a mobile on-site rebar threading service, the Terwa Service Portal (BIM and engineering platform), and ALC rental kits, with manufacturing concentrated at a 10,000 m² facility in Cristian, Romania and sales/distribution offices across Europe, China, and India.

Product overview

Terwa offers a comprehensive portfolio of construction solutions centered on metal components for precast and cast-in-place concrete construction. The product range is organized into six main categories: Fixing Systems, Lifting Systems (1D screw anchors, 2D flat anchors, 3D T-slot anchors), Reinforcement Systems (Alligator Couplers and PSA/TSE/PSE Rebar Connection Systems), Special Products, Fastening Plates, and Precast Concrete Systems. The Alligator Coupler family (ALC, ALC-SK, ALC-VK, ALC-AP, PSK) provides reinforcement bar connections from 10-40mm diameter. The Rebar Connection System includes male (TSE) and female (PSA) couplers, PSE couplers, and various special configurations (PSA-TEC, PSA-PSC, transition couplers, bent couplers). Supporting products include torque wrenches (electric, pneumatic, manual), mobile on-site threading services, and the Terwa Service Portal digital platform for BIM, project calculations, and collaboration. The portfolio is completed by complementary lifting systems for precast element handling.

Differentiator

Problem solved

Functional benefit

Products and services

• ALC Alligator Couplers Steel reinforcement bar couplers for connecting same-size rebars across diameters 10-40mm, used to replace damaged reinforcements and connect to existing structures for precast concrete manufacturers and construction companies.
• ALC-SK Continuity Coupler Continuity coupler that allows reinforcement extension at construction joints without drilling formwork, comprising a fixed female part and a screw-on male part with locknuts.
• ALC-VK Transition Coupler Transition coupler connecting two different rebar diameters to enable economical and safe structural optimization across precast concrete elements.
• ALC-AP End Anchoring Coupler Alligator coupling with welded end plate that ensures dead-end embedment for reinforcement bars in concrete, eliminating the need for hooked ends.
• PSA Female Rebar Coupler Female rebar coupler consisting of steel rebar with a pressed interior metric threaded sleeve, creating continuous reinforcement for all types of precast concrete elements using B500B or B500C steel.
• TSE Male Rebar Coupler Male rebar coupler forged from B450C, B500B or B500C steel with a metric thread on one end; the forged-end diameter is enlarged relative to the rebar for increased thread strength against tensile and shear forces.
• PSE Rebar Coupler Rebar coupler system for connecting reinforcement bars, offered in standard and custom configurations for precast concrete construction.
• PSAD Double Rebar Coupler Double rebar coupler with pressed sleeves on each end, manufactured from B450C, B500B or B500C steel conforming to EN 10080 and BS4449, used for double rebar connection in concrete structures.
• PSAG Bent Rebar Coupler Bent steel rebar coupler with a pressed sleeve at one end, typically offered with a bending diameter DB=10xd (with 15xd and 20xd options) for reinforcement configurations requiring angled bar terminations.
• PSA-T Transition Coupler Transition coupler that connects rebar bars of different diameters using a special metric internal thread sleeve, allowing axial-direction rotation of the second bar during assembly.
• PSA-PSC Coupler Assembly Assembly consisting of a PSA coupler and PSC metric thread bolt that provides rebar connection for all types of precast concrete elements.
• PSA-TEC End Connector End connector comprising a round steel disc with a threaded hole that fits PSA-PSC or TSE connections, serving as an alternative to traditional rebar bending at joints and conforming to ACI 318 and Eurocode 2 embedment-length requirements.
• 3D T-Slot Anchor Lifting System Lifting system using T-slot anchors together with complementary accessories and lifting anchors for lifting and transporting precast concrete elements.
• 2D Flat Anchor Lifting System Lifting system using flat anchors and associated lifting anchors and accessories for lifting and transporting precast concrete elements.
• Electric Torque Wrench High-speed, high-impact electric torque wrench (Makita TW 1000) with a minimum 1000 Nm torque rating used for coupler installation.
• Pneumatic Torque Wrench High-speed pneumatic wrench (SNAP-ON AT1300A) with torque range 813-1898 Nm for heavy-duty coupler installation in factory and site environments.
• Terwa Torque Wrench Torque wrench specifically designed for correctly mounting Terwa couplers on site and in factories, delivered with a calibration report and work instructions.
• Mobile On-Site Rebar Threading Service Mobile on-site service that dispatches qualified operators with a self-sufficient mobile pressing unit to press couplers onto reinforcement bars from 12-40mm diameter on customer construction sites, with quality reports provided.
• Terwa Service Portal Digital platform for the precast and construction sector providing project drawings, calculations for precast elements, document downloads, BIM object library, collaboration tools, and technical engineering support.
• ALC Alligator Coupler Rental Kit Rental kits for ALC Alligator couplers including the mounting tools needed (electric Makita TW 1000 or pneumatic SNAP-ON AT1300A wrenches), offered to customers who need short-term coupler access.

Quantifiable outcome

• Terwa couplers create reinforcement with identical characteristics to base rebar material. Load transfer through rebar, not concrete (unlike overlapping joints)
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 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.

• IGQ (Istituto Italiano di Garanzia della Qualità)coreTechnology or Integration · 27 September 2024IGQ is a certification body founded in 1985 with CNR endorsement, first quality system certification body in Italy. IGQ is founding member of CISQ Federation and IQNET (International Certification Network) present in over 35 countries with 100+ local organizations. IGQ certification allows Terwa to use IQNET international certification mark.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Peikko Group: Finnish-headquartered manufacturer of rebar couplers, lifting systems, and structural connections for precast concrete construction. The closest direct competitor to Terwa across product lines, geographies, and customer segments.
• Dextra Group: Asia-based manufacturer of mechanical rebar splicing systems, headed bars, and structural accessories. Directly competes with Terwa in rebar coupler product category, particularly in emerging markets.
• Leviat (formerly Ancon / Halfen): Global manufacturer of rebar couplers, lifting and fixing systems for precast concrete, owned by CRH plc. A larger-scale direct competitor with similar product portfolio and international certifications footprint.
• nVent ERICO (Cadweld / Lenton): Global manufacturer of mechanical rebar splicers (Lenton brand), grounding, and concrete construction products. Direct competitor in the rebar coupler category with strong North American and European presence.

Regional players

• Tokyo Tekko (BBS Rebar Splicing): Japanese-headquartered manufacturer of mechanical rebar splicing systems. Comparable product category, with strong Asia-Pacific presence; less direct overlap in Terwa's primary European markets.
• Bosch Beton: Dutch manufacturer of precast concrete retaining walls and foundation elements. While not a direct competitor, it is a customer-segment peer as a major Dutch precast concrete producer that uses rebar couplers and lifting systems.
• Stahlton Bauteile AG: Swiss manufacturer of precast concrete components and connections, including rebar couplers and lifting systems. Comparable product range, primarily serves the Swiss and adjacent European markets.

Broad incumbents

• Simpson Strong-Tie: US-headquartered manufacturer of structural connectors, fasteners, and anchoring systems for construction. Competes in adjacent product categories and overlaps with Terwa's fixing systems and fastener offerings.
• CRH plc: Global building materials conglomerate owning Leviat (which competes directly with Terwa). CRH's scale and capital access represent a structural competitive threat, and Leviat's certifications and footprint overlap with Terwa's core markets.

Emerging players

• Reisner & Wolff Engineering: European supplier of rebar accessories and precast concrete connections. Comparable in product category though smaller in scale and geographic reach than Terwa.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xtwitter.com/terwagroup
• YouTubeyoutube.com/channel/UC7DI48twc6QMwPbGuprayxw
• Facebookfacebook.com/TerwaConstructionGroup
• LinkedInlinkedin.com/company/terwaconstructiongroup

Compliance18 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 records

Funding overview

Funding rounds1 record

Investors1 record

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 Terwa