Kolektor Construction

What Kolektor Construction does

Kolektor Construction is the construction and civil engineering strategic business unit of Slovenia's Kolektor Group (KOLEKTOR d.d.), a publicly listed diversified industrial conglomerate headquartered in Idrija, Slovenia. The unit operates through two wholly-owned subsidiaries: Kolektor CPG (established 1962), which specializes in high-rise construction, infrastructure facilities, reinforced concrete works, and digitalized construction processes using in-house software tools; and Kolektor Koling (established 2019), which delivers construction engineering, architectural and mechanical/electrical design, and energy engineering services. The portfolio spans high-rise residential and commercial buildings, road and railway infrastructure (including bridges, tunnels, and port facilities), reinforced concrete structures, road maintenance, owned construction plants (concrete and asphalt production), mechanization fleet, and electrical and mechanical installations. Strategic positioning emphasizes energy-efficient construction and innovation, including the AIPAN (Artificial Intelligence Panel) project for AI-integrated building composite pavers and development of autonomous construction robots.

The unit's go-to-market is sales-led and project-based, securing work through public procurement and direct contracts with government and large enterprise clients such as Luka Koper (Port of Koper) and Slovenian Railway Infrastructure. Revenue is generated via professional services contracts for full-scope construction execution from conceptual design through delivery, with pricing determined per project through competitive bidding rather than published rate cards. Geographically, the unit primarily serves Slovenia with active cross-border expansion into Croatia (Novi Vinodolski bypass, Luka Reka warehouse) and the Western Balkans (Bosnia and Herzegovina), supported by the parent group's network of more than 30 companies across 14 countries. Active major projects in 2025-2026 include the Second Track Divača-Koper railway (Section 2 completed with EUR 156M EU funding received), Pier I extension at Port of Koper, and the Third Development Axis toward Koroška.

Name

Kolektor Construction

Legal name

KOLEKTOR GROUP d.o.o.

Website

https://kolektorgradbenistvo.si

Company type

Public

Founded year

1962

Operating status

Operating

Headcount range

51–100 employees

Short description

Kolektor Construction is the construction and civil engineering unit of Slovenia's Kolektor Group, operating through Kolektor CPG and Kolektor Koling to deliver high-rise buildings, railway/road/port infrastructure, and energy-efficient construction projects for government and enterprise clients across Slovenia, Croatia, and the Western Balkans.

Ownership category

akta.pro rank

Product category

Construction and Civil Engineering Services

NAICS

Nonresidential Building Construction (2362), Heavy and Civil Engineering Construction (237), Highway, Street, and Bridge Construction (237310)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Construction - Special Trade Contractors (1700)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industries

Office & Corporate Building Construction (IMAFACAA), Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Structural & Mechanical BOP Construction (Racking/Trackers, Turbine Erection Support, Mounting Structures) (EUAMAFAC)

Keywords

• Civil engineering services
• Infrastructure construction
• Building construction
• Railway construction
• Road maintenance

Headquarters

HQ city

Idrija

HQ country

Slovenia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Civil Engineering Services: Full-service construction offering including building and civil engineering, high-rise construction, infrastructure facilities, reinforced concrete structures, road maintenance, construction plants, mechanization, electrical and mechanical installations, and building engineering from conceptual design to execution

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Kolektor Construction delivers full-service construction and civil engineering through its subsidiaries Kolektor Koling and Kolektor CPG, covering high-rise building construction, railway, road and port infrastructure, reinforced concrete structures, road maintenance, construction plants, mechanization, and electrical and mechanical installations. Projects span from conceptual and architectural design through execution, with emphasis on energy-efficient construction and digitalization of construction processes.

Product overview

Kolektor Construction Group operates as a construction and civil engineering organization comprising two main subsidiaries: Kolektor Koling (providing construction engineering, architectural design, and energy services) and Kolektor CPG (established 1962, specializing in high-rise and infrastructure construction with digitalization of construction processes). The portfolio includes high-rise construction, infrastructure facilities, reinforced concrete constructions, road maintenance, construction plants with concrete production, mechanization fleet, and electrical/mechanical installations. The company is focused on energy-efficient construction and developing innovative solutions including AI-integrated building components through the AIPAN project.

Differentiator

Problem solved

Functional benefit

Products and services

• High-rise Construction (Visoke gradnje)

Quantifiable outcome

• 15,061 meters of railway section completed (Divača-Črni Kal)

Named customers2 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature3 records

Partnerships

Five partnerships are on record, tiered core, major and minor.

• FRIDA AI CentercoreStrategic or Co-development Partner · 18 June 2026Kolektor is among partners establishing Slovenia's most powerful AI center. The FRIDA center represents cutting-edge AI research and development collaboration.
• University of Ljubljana - Faculty of Computer and Information Science (FRI)coreStrategic or Co-development Partner · 28 September 2020Collaborative development of I 4.0 READINESS app for assessing digital maturity of companies. Dr. Damjan Vavpotič and Dr. Tomaž Hovelja from FRI collaborated on the application development.
• Luka Koper (Port of Koper)majorStrategic or Co-development PartnerMajor partner for port expansion projects including pier I extension and northern pier construction. Kolektor Construction executing significant infrastructure work at the port.
• German Chamber of Commerce and Industry (AHK)minorGTM or Marketing PartnerMember of AHK representing business interests and network connections in German-Slovenian business relations
• SAPcoreTechnology or IntegrationTransformation to SAP S/4HANA - company undergoing digital transformation to SAP S/4HANA system entering Realize phase

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Bouygues Construction: Major European construction group operating across building, civil works, and energy infrastructure with global reach. Broad incumbent peer competing for complex international tenders including EU-funded infrastructure.
• Strabag SE: One of Europe's largest construction groups, headquartered in Austria, with extensive operations across CEE including Slovenia and Croatia. Competes for major infrastructure tenders in the same region but at significantly greater scale and geographic breadth.
• VINCI Construction: Global construction division of VINCI, with significant CEE presence including rail, road, and building infrastructure. Broad incumbent peer competing for the same EU-funded mega-projects Kolektor Construction targets.
• Skanska AB: Swedish-headquartered global construction and project development group operating across Europe. Comparable in offering end-to-end construction services on complex infrastructure and building projects, though at vastly larger scale.

Emerging players

• Trimo d.o.o. Slovenian modular and pre-engineered building construction company with focus on energy-efficient and sustainable buildings. Comparable in the energy-efficient construction niche Kolektor Construction targets, though more productized/modular in delivery model.

Regional players

• GP Krk d.d. Croatian construction and civil engineering company active in building, infrastructure, and water projects in Croatia and the Western Balkans. Regional peer with overlapping service portfolio in markets where Kolektor Construction has expanded (Rijeka/Luka Reka).
• Tehnomont d.d. Croatian construction group specializing in industrial and commercial building construction. Regional peer in the Western Balkans construction market where Kolektor Construction has begun to compete.

Direct peers

• Hidromont d.o.o. Slovenian construction and engineering company specializing in hydraulic, civil, and infrastructure projects. Comparable domestic peer competing for similar public infrastructure tenders and hydropower/water infrastructure contracts in Slovenia.
• CGP d.d. Slovenian general contractor and civil engineering firm based in Novo Mesto, active in building, infrastructure, and environmental construction. Closest direct peer in scale, geography, and service mix to Kolektor Construction in the domestic Slovenian market.
• SCT d.d. Historic Slovenian construction group (Ljubljana-based) active in building and civil engineering. Direct peer in domestic market though currently in restructuring; comparison illustrates competitive dynamics and execution risk in Slovenian large-project contracting.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCm1r4d37qNwh5AWyZKaYvug
• Facebookfacebook.com/KolektorHQ
• LinkedInlinkedin.com/company/kolektorconstruction
• Instagraminstagram.com/koncern_kolektor

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 Kolektor Construction