INTEGRATED INFRASTRUCTURE PROJECT TEAM

PROJECTS & EXPERIENCE

Infrastructure experience presented through the integrated cooperation of Ductokop d.o.o., Transtec d.o.o. and Open World Options d.o.o.

DUCTOKOP d.o.o.+TRANSTEC d.o.o.+OPEN WORLD OPTIONS d.o.o.
15+Referenced projects
€250M+Combined investment value
EUEU-funded infrastructure experience
3Integrated companies
STRATEGIC RAILWAY PROJECT ENVIRONMENT

DUGO SELO–NOVSKA
RAILWAY MODERNIZATION

Reconstruction of the existing track and construction of a second track across an 83 km international railway corridor, including stations, grade separation, signalling and electrical infrastructure.

€677.07MTotal contract value, excl. VAT
83 KMRailway section
160 KM/HTarget operating speed
AFCONSMain contractor
PROJECT TEAM CONTEXT: DUCTOKOP + TRANSTEC + OPEN WORLD OPTIONS

SELECTED EXPERIENCE

WATER, WASTEWATER & TRANSPORT

DISCUSS A PROJECT →

Ilustrativni AI vizuali; nisu fotografije navedenih projekata. / Illustrative AI visuals; not photographs of the named projects.

AI-generated sector illustration / AI ilustracija djelatnosti
OPERATIONAL

WASTEWATER TREATMENT PLANT — OSIJEK

Design, permitting, construction and commissioning of a tertiary treatment facility for approximately 170,000 PE.

Investment
€23.69M
Main contractor
SUEZ Trattamento Acque
Team role
Coordination, technical support and subcontractor management
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
OPERATIONAL

FOUR WASTEWATER FACILITIES — POREČ REGION

Four MBR plants, sludge treatment, solar drying and integrated monitoring across multiple coastal locations.

Investment
€38.84M
Main contractors
SUEZ International + STRABAG
Team role
Coordination, local support and technical assistance
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
PRE-TOC

DRINKING WATER TREATMENT — DUBROVNIK

Drinking-water purification facility with a 490 l/s pumping station and associated infrastructure.

Investment
€7.54M
Main contractor
SUEZ Trattamento Acque
Team role
Contract management and technical oversight
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
IN EXECUTION

WASTEWATER INFRASTRUCTURE — ISLAND OF KRK

Two new treatment facilities and upgrades to four existing plants with sludge systems and SCADA integration.

Investment
€24.49M
Main contractors
ODIS Filtering + ART Graditeljstvo
Team role
Takeover coordination and technical administration
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
IN EXECUTION

WASTEWATER TREATMENT — BELI MANASTIR

Capacity expansion from 8,000 to 16,000 PE with tertiary treatment and solar sludge drying.

Investment
€7.05M
Main contractor
ERSA Construction
Team role
Project-management support and administrative coordination
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
IN EXECUTION

SEWERAGE NETWORK — SLATINA

Regional sewerage infrastructure upgrade supported from early mobilization through contract execution.

Investment
€35.00M
Sector
Municipal infrastructure
Team role
Service provision and coordination
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
PREPARATION / EXECUTION

NIN, ZADAR & SINJ INFRASTRUCTURE

Multi-lot coordination framework for major Adriatic and regional sewerage development programs.

Investment
Approx. €105M
Locations
Nin, Zadar, Sinj 1 and Sinj 2
Team role
Takeover support and subcontracting coordination
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
SETUP PHASE

WATER & SEWER NETWORK — SPLIT

Cross-border contractor onboarding and Croatian regulatory alignment for a major urban network project.

Investment
€32.66M
Main contractors
GENER 2 + Gjoka Construction
Team role
Service provision and contract-preparation support
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
AI-generated sector illustration / AI ilustracija djelatnosti
SETUP PHASE

PORT POLAČIŠTE ACCESS ROAD — KORČULA

Approximately 11.74 km of access-road infrastructure connecting the port with the regional road network.

Investment
€13.53M
Main contractor
Es Industries Yapi
Team role
Service provision and local coordination
DUCTOKOP · TRANSTEC · OPEN WORLD OPTIONS
IMPORTANT LEGAL NOTICE

Project roles and displayed values are subject to the full project and website disclaimer →