Prefab
Prefab S.A. is a publicly listed Romanian manufacturer of autoclaved aerated concrete blocks (CELCO brand), prestressed concrete pressure pipes (PREMO and SENTAB), and prefabricated structural elements, serving construction firms, utilities, government, and retail-chain customers from Călărași and Constanța with vertically integrated cogeneration energy.
- Company typePublic
- Founded1997
- HeadquartersCalarasi, Romania
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Prefab does
Prefab S.A. is a publicly listed Romanian construction materials manufacturer (BVB:PREFAB) operating from Călărași and Constanța, producing autoclaved aerated concrete (AAC) blocks under the CELCO brand, prestressed concrete pressure pipes under the proprietary PREMO (IPREROM) and SENTAB (Swedish) technologies, and a broad range of prefabricated concrete elements including reinforced concrete poles for overhead electrical lines, beams, floor slabs, roof cassettes, bridge/culvert elements, modular building systems, garages, fences, and PVC windows and doors. Its manufacturing base relies on a vertically integrated production stack anchored by an on-site Kawasaki cogeneration plant that supplies 60% of facility energy needs and exports 85–90 MW/day to the Romanian national grid, while AAC production has scaled from 6,000 cubic meters/month in 1999 to 47,000 cubic meters/month currently, equivalent to ~500,000 cubic meters/year capacity.
The company sells primarily through direct B2B and B2G channels: dedicated sales departments for BCA, pressure pipes, and prefabricated elements handle quote-based pricing issued from the company website, with products delivered directly from the Călărași and Constanța facilities. Customer segmentation spans construction companies (residential, commercial, industrial, modular buildings for schools/military), government and municipal infrastructure projects, large retail chains (KAUFLAND, BILLA, PENNY, PRAKTIKER), and utilities and infrastructure contractors (F.I.S.E. Electrica Serv SA, SC TEHNIC ASIST, SC Drum Construct SRL). Revenue is generated from one-time product sales across the construction materials catalog, supplemented by transaction-based sale of surplus cogenerated electricity to the national grid.
Prefab is positioned as a market leader in Romanian construction materials with 17+ years of continuous operation, holding ISO 9001, ISO 14001, and OHSAS 18001 certifications, CE-marker conformity for AAC and prefabricated elements under SR EN standards, and the 2013 'Need 4 Green Economy' award. It operates exclusively in the Romanian domestic market, with no disclosed export activity or geographic expansion; the consolidated ownership sits with dispersed public shareholders following the 2015 CELCO takeover and a 2026 capital increase.
Prefab firmographics
Firmographics- Name
- Prefab
- Legal name
- PREFAB S.A.
- Website
- https://prefab.ro
- Company type
- Public
- Founded year
- 1997
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Prefab S.A. is a publicly listed Romanian manufacturer of autoclaved aerated concrete blocks (CELCO brand), prestressed concrete pressure pipes (PREMO and SENTAB), and prefabricated structural elements, serving construction firms, utilities, government, and retail-chain customers from Călărași and Constanța with vertically integrated cogeneration energy.
- Ownership category
- akta.pro rank
Prefab industry classification
Industry- Product category
- Building Materials Manufacturing
- NAICS
- Cement and Concrete Product Manufacturing (3273), Structural Steel and Precast Concrete Contractors (23812)
- SIC
- Concrete Products, Except Block & Brick (3272)
- akta.pro primary industry
- Precast Concrete Products (IMADAAAB)
- akta.pro secondary industry
- Residential Modular & Prefabricated Home Construction (IMAFABAF)
Keywords
Where Prefab is headquartered
LocationHeadquarters
- HQ city
- Calarasi
- HQ country
- Romania
- HQ region
- Europe
Offices3 records
Markets served
Prefab business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Technology or R&D, Personnel, Infrastructure
Revenue model
- Construction Materials Sales: Direct sales of prefabricated concrete products, AAC blocks, and pressure pipes to construction companies, infrastructure contractors, utilities, and government entities. One-time transaction model for product sales with potential for repeat orders from project-based customers.
- Electricity Generation (Cogeneration): Sale of surplus electricity to the national energy grid from cogeneration plant. 60% of generated electricity delivered to SEN (Sistema Energetic National), representing 85-90 MW daily in current operation.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | BCA Blocks - Multiple dimensions for masonry and insulation |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels3 records
Prefab product offering
Product offeringCore offering
Prefab S.A. is a Romanian manufacturer of construction materials producing autoclaved aerated concrete (BCA/CELCO) blocks, prestressed concrete pressure pipes (PREMO and SENTAB), reinforced concrete poles for overhead electrical lines, and a broad portfolio of prefabricated concrete structural elements (beams, floor slabs, roof cassettes, bridge elements, modular construction units, garages, and fences). The company also operates an on-site cogeneration plant at its Călărași facility that supplies 60% of its energy needs and exports surplus electricity to the Romanian national grid.
Product overview
Prefab S.A. is a Romanian construction materials manufacturer offering a diversified portfolio of concrete and aerated concrete products. The core product lines include BCA CELCO autoclaved aerated concrete blocks (produced using Hebel technology at 47,000 mc/month capacity), PREMO and SENTAB prestressed concrete pressure pipes for infrastructure, and a comprehensive range of prefabricated concrete elements including reinforced concrete poles for overhead power lines, beams and floor slabs for industrial and commercial buildings, roof elements, modular construction systems, garages, and fences. The company also produces PVC windows and doors through its Călărași facility. Prefab positions itself as a market leader in Romanian construction materials, with a cogeneration plant at its Călărași facility that also makes it an electricity producer in the national energy system.
Differentiator
Problem solved
Functional benefit
Brands
- CELCO: Autoclaved aerated concrete (AAC/BCA) brand producing blocks for masonry construction, insulation, and walls. CELCO STANDARD offers thermal conductivity of 0.10 W/m°K and is produced following the original CELCO formula.
Products and services
- BCA CELCO Autoclaved Aerated Concrete Blocks Autoclaved aerated concrete (BCA/AAC) blocks produced with Hebel technology at the Călărași facility (capacity 47,000 cubic meters per month), used for masonry, insulation, and wall construction in residential and multi-story buildings. CELCO STANDARD line offers thermal conductivity of 0.10 W/m·K.
- PREMO Prestressed Centrifuged Concrete Pressure Pipes Prestressed centrifuged concrete pressure pipes using IPREROM technology, diameters 600mm–1000mm and 5m production length, for water supply, sewage, and infrastructure crossings, with over 80 years of service life.
- SENTAB Prestressed Vibrated and Pressed Concrete Pressure Pipes Prestressed vibrated and pressed concrete pressure pipes using Swedish SENTAB technology, diameters 1200mm–2000mm and 6m production length, for water distribution and sewage systems, with over 80 years of service life.
- Reinforced Concrete Poles for Overhead Electrical Lines Reinforced concrete poles for overhead electrical power lines, including centrifuged SC types and vibrated SE types, for low and medium voltage applications, with a 40-year guaranteed service life.
- Prestressed and Reinforced Beams and Floor Elements Prestressed and reinforced concrete beams and floor elements for industrial halls and supermarket/retail buildings, including precast beams up to 30m in length, supplied to clients such as KAUFLAND, BILLA, PENNY, and PRAKTIKER.
- Special Roof Elements Lightweight 6m cassette roof elements and curved roof elements in 9, 12, 15, and 18m lengths, designed for industrial, cultural, sports, and tourism buildings, produced under SR EN 113693+A1/2009 conformity.
- Bridge and Culvert Concrete Elements Prefabricated concrete elements for bridges and culverts including L-type elevations, D-type slabs, C-type frames, P2-type frames, CP2 end elements, A-type wings, and T-type abutments.
- Modular Construction Elements Modular construction elements used to build shops, schools, kindergartens, apartments, military campuses, dormitories, mobile stations, and clubs.
- Prefabricated Concrete Garages Prefabricated concrete garages available in closed (with metal door) and open configurations, with dimensions of 5.28m x 3.26m and 17.21 sqm useful area.
- Prefabricated Concrete Fence Panels Prefabricated reinforced concrete fence panels (2.43m x 1m x 6cm) and ornamental fence panels with decorative upper and lower sections.
- PVC Windows and Doors PVC windows and doors with five-chamber profile systems and thermal insulation glass, manufactured at the Călărași facility using Teraplast Bistrita profile systems.
Quantifiable outcome
- 40 years guaranteed service life for concrete poles
- +5 more outcomes
Companies that use Prefab
Customer profileNamed customers7 records
Segments4 records
Ideal customer profiles3 records
Prefab technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Prefab partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core and minor.
- Kawasaki TurbinecoreKawasaki Turbine provided the gas turbine technology for Prefab's cogeneration plant, which generates electricity and thermal energy for the manufacturing facility. This partnership positioned Prefab among the 11% of European companies producing high-efficiency energy through cogeneration.
- CRHminorInternational building materials company listed on partnership page
- DuctilminorBuilding materials company listed on partnership page
- EnergosteelminorSteel/energy sector partner listed on website
Scale indicators6 records
Recent moves6 records
Expansion highlights4 records
Prefab competitors and assessment
Company assessmentBroad incumbents
- Wienerberger AG: Austrian-listed leader in clay and concrete building materials (bricks, blocks, pipes). Operates a Wienerberger Pipe Systems division that directly overlaps with Prefab's pressure pipe business (PREMO/SENTAB) for water and sewage infrastructure.
- Holcim (LafargeHolcim): Swiss-headquartered global leader in cement, aggregates, and ready-mix concrete with significant operations across Romania. Competes with Prefab in concrete-based construction materials and infrastructure solutions.
- CRH plc: Global building materials leader in aggregates, cement, and concrete products. Already listed as a partner on Prefab's website. Operates in Romania via local subsidiaries and represents the type of broad-incumbent competitive pressure Prefab faces in precast concrete and aggregates.
- Saint-Gobain: French global building materials group with AAC products (Weber) and extensive Eastern European operations. Competes with Prefab in AAC blocks, insulation, and broader construction materials for residential and commercial segments.
- Heidelberg Materials: Global building materials major with strong Eastern European presence in cement, ready-mix concrete, and precast elements. Competes with Prefab in concrete products and aggregates across Romania and neighboring markets.
Regional players
- Solbet: Polish AAC manufacturer operating in the Central and Eastern European region. Comparable to Prefab in product (autoclaved aerated concrete blocks) and regional market focus, though it serves Poland rather than Romania directly.
- Bauroc: Baltic-region AAC manufacturer based in Latvia, comparable to Prefab in product category and capacity profile. Serves a different geography (Baltics) but competes for the same broader Central/Eastern European AAC market dynamics.
Others
- Ductil Steel: Romanian steel products and construction materials company already listed as a Prefab partner. Comparable as a Romanian domestic building materials peer, though it operates in steel rather than directly in precast concrete.
Direct peers
- Xella International (YTONG / Hebel): European leader in autoclaved aerated concrete (AAC) under the YTONG and Hebel brands. Directly competes with Prefab's CELCO BCA product line using identical Hebel technology, and represents the principal Western European AAC competitor pushing into Eastern European markets.
- TeraPlast Bistrița: Romanian-listed building materials manufacturer producing PVC profiles, windows/doors, and construction materials. Already a partner/supplier to Prefab (PVC profiles for fenestration), making it the most direct Romanian peer in product overlap and geographic market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Prefab social profiles
Digital presencePrefab compliance and trust
Trust signalCompliance10 records
Prefab financial estimates
Financial estimateRevenue estimate
Valuation estimate
Prefab leadership team
Management profileNumber of profiles
Profiles5 records
Prefab funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Prefab 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 Prefab
What does Prefab do?
Prefab S.A. is a Romanian manufacturer of construction materials producing autoclaved aerated concrete (BCA/CELCO) blocks, prestressed concrete pressure pipes (PREMO and SENTAB), reinforced concrete poles for overhead electrical lines, and a broad portfolio of prefabricated concrete structural elements (beams, floor slabs, roof cassettes, bridge elements, modular construction units, garages, and fences). The company also operates an on-site cogeneration plant at its Călărași facility that supplies 60% of its energy needs and exports surplus electricity to the Romanian national grid.
Is Prefab a public or private company?
Prefab is a public company. It is classified as public and is currently operating.
When was Prefab founded?
Prefab was founded in 1997. It employs 101 to 250 people.
Where is Prefab based?
Prefab is headquartered in Calarasi, Romania, in the Europe region.
How does Prefab make money?
Two revenue lines are on record. Construction Materials Sales are the primary driver. The others are electricity Generation (Cogeneration).
Who are Prefab's main competitors?
Broad incumbents on record are Wienerberger AG, Holcim (LafargeHolcim), CRH plc, Saint-Gobain and Heidelberg Materials. Regional players are Solbet and Bauroc. Ductil Steel is listed as an others. Direct peers are Xella International (YTONG / Hebel) and TeraPlast Bistrița.
Does Prefab have an API?
No public API is recorded for Prefab.
What industry is Prefab in?
Prefab's product category is Building Materials Manufacturing. Its primary akta.pro industry code is IMADAAAB, Precast Concrete Products, with a secondary code of IMAFABAF, Residential Modular & Prefabricated Home Construction. Its NAICS code is 3273 and its SIC code is 3272.