INSTITUT IGH

What INSTITUT IGH does

INSTITUT IGH is a Zagreb-headquartered, publicly listed (ZSE: IGH) civil engineering consulting company founded in 1949, operating as a d.d. (joint-stock company) in Croatia and across the Western Balkans and Caucasus. It provides integrated engineering services — design, construction supervision, laboratory testing, BIM-based digital design, technical assessment, and certification — through a workforce of 251–500 employees and a network of regional offices in Kosovo, Georgia, Bosnia and Herzegovina, Montenegro, and North Macedonia. Its portfolio includes nationally significant infrastructure such as the Pelješac Bridge, Zagreb Airport, and sections of the Croatian motorway network, and it is the sole designated Croatian Technical Assessment Body (HTTO) and a holder of EU Notified Body designation NB 2477.

The business model is project-based and procurement-driven, with revenue generated from public-sector infrastructure tenders, design and supervision contracts, accredited laboratory services, and recurring technical assessments and certifications. Pricing is contract-negotiated, anchored to long-cycle civil engineering engagements with state-owned clients such as Hrvatske Ceste, HŽ Infrastruktura, and ACI, supplemented by World Bank-financed programs. The company complements core engineering work with a Autodesk Authorized Training Center and a Structure Management service line, adding training and lifecycle-asset revenue streams on top of one-off design mandates.

Operationally, IGH combines in-house licensed engineers (150+), accredited laboratories, and regulatory-designated certification capacity under a single legal entity — a structure that allows it to bid on integrated tenders spanning design, supervision, testing, and conformity assessment. As of 2025 the company has refreshed its executive leadership (new CEO Mariyan Tkach; Robert Petrosian as Management Board President) and added new Hrvatske Ceste contracts, a BIM lab, and the Structure Management line. Revenue is not publicly disclosed, and the provided financial figures appear inconsistent with the company's scale, indicating a data quality issue that any financial triangulation should treat with caution.

Name

INSTITUT IGH

Legal name

INSTITUT IGH, d.d.

Website

https://igh.hr

Company type

Public

Founded year

1949

Operating status

Operating

Headcount range

251–500 employees

Short description

INSTITUT IGH is a Zagreb-headquartered, publicly listed civil engineering consultancy providing design, supervision, laboratory, BIM, and certification services to public-sector infrastructure clients across Croatia, the Western Balkans, and the Caucasus.

Ownership category

akta.pro rank

Product category

Civil Engineering Consulting

NAICS

Engineering Services (54133), Testing Laboratories and Services (541380), Testing Laboratories and Services (54138)

SIC

Services-Engineering Services (8711), Services-Testing Laboratories (8734), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Non-Destructive Testing (NDT) & Inspection Services (IMAIACAI)

akta.pro secondary industries

Third-Party Certification, Code Compliance & Regulatory Inspection (ASME/API/ISO) (EUAEAHAN), Structural & Civil Inspection (Steel, Concrete, Foundations) (EUAEAHAI)

Keywords

• Civil engineering consulting
• Infrastructure design
• Laboratory testing services
• Technical supervision
• BIM services

Headquarters

HQ city

Zagreb

HQ country

Croatia

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional consulting services including design, technical supervision, project management, research and planning documents for civil engineering infrastructure projects.
2. Laboratory Services: Testing and laboratory services for construction materials including concrete, steel, soil, welds, and field testing of construction elements.
3. Certification Services (IGH CERT): Product certification and factory production control certification services for construction products under EU harmonized and non-harmonized technical specifications.
4. Technical Assessment (IGH HTO): Croatian Technical Assessment services for construction products as the only designated HTTO in Croatia.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

INSTITUT IGH is a civil engineering consulting firm providing integrated design, laboratory testing, technical supervision, BIM, project management, research/studies, structure management, and field investigation services across infrastructure sectors including roads, railways, airports, ports, buildings, hydrotechnics, energy, and environmental protection. It also operates designated certification bodies (IGH CTA and IGH CERT) for construction product conformity assessment and is an Autodesk Authorized Training Center.

Product overview

INSTITUT IGH is a leading civil engineering consulting company operating since 1949, offering a comprehensive portfolio of integrated services across multiple infrastructure sectors. The company's core offering consists of nine interconnected service lines: Design Services, Laboratory Services (including Building Physics with Keymark certification), Technical Supervision, BIM (Building Information Modeling), Project Management, Research/Studies/Planning Documents, Structure Management (featuring the proprietary SGG software), Field Investigation Works, and specialized certification services through IGH CTA and IGH CERT. Supporting these core services, the company operates an Autodesk Authorized Training Center. Services span ten sectors: Roads, Railways, Airports, Building Construction, Ports, Hydrotechnics, Environmental Protection, Energy and Industry, Engineering Structures, and Reconstruction and Rehabilitation. The company holds certifications as a Croatian Technical Assessment Body (HTTO/nb-2477) and maintains ISO 9001, ISO 14001, ISO 45001, ISO 50001, and ISO 27001 compliance standards.

Differentiator

Problem solved

Functional benefit

Products and services

• Design Services Comprehensive design services for civil engineering projects including roads, railways, airports, buildings, ports, hydrotechnical structures, and engineering structures. Provided to government infrastructure agencies and private developers.
• Laboratory Services Testing and laboratory services for construction materials including concrete, steel, soil, rocks, geosynthetics, and non-destructive testing methods (RT, UT, PT, MT). Includes the Building Physics Laboratory with Keymark certification.
• Technical Supervision Professional supervision services during construction to ensure quality, timely execution, and adherence to planned budgets across all civil engineering sectors. Provided to government agencies, contractors, and private investors.
• BIM (Building Information Modeling) Services

Quantifiable outcome

• Completed Pelješac Bridge (274 million EUR)
• +2 more outcomes

Named customers8 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered major and core.

• Hrvatske Ceste d.o.o.majorStrategic or Co-development Partner · 11 March 2025Signed new contracts for road infrastructure projects in 2025. Major government client for Croatian road network development.
• ETZ (subsidiary)coreOthersETZ is a subsidiary of INSTITUT IGH that provides services including development of conceptual, main and detailed designs for energy projects. Collaborated on biogas plant projects (Mala Branjevina 1 and 2, 1MW each).
• Adriatic Croatia International Club (ACI)majorStrategic or Co-development PartnerProfessional supervision contract for Adriatic Croatia International Club covering 22 marinas along the Adriatic coast. Ongoing business cooperation for supervision services in marinas under ACI management.
• HŽ InfrastrukturamajorStrategic or Co-development PartnerRailway infrastructure supervision including monitoring of works on Zagreb Zapadni kolodvor - Savski Marof railway section (17.8 km, double-track line on RH1 corridor).

Scale indicators8 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• WSP: Global professional services firm with a large European engineering consulting practice. Larger and more diversified than IGH but actively competes on EU-funded transport, environment, and energy tenders across Central and Southeastern Europe.

Direct peers

• Egis: French-headquartered multidisciplinary engineering and consulting group operating across transport, energy, buildings, and infrastructure supervision — directly comparable to IGH in service mix and project-based consulting model, though with materially larger geographic reach.
• Ramboll: Danish engineering, design, and consulting company with a broad infrastructure, environment, and energy portfolio. Comparable service-line breadth and project-based consulting model, particularly in transportation and energy sectors where IGH also operates.
• Sweco: Sweden-based European engineering consultancy with strong transportation, water, and energy practices. Comparable to IGH as a multidisciplinary consulting engineering firm operating across multiple European markets with design and project management services.
• Mott MacDonald: UK-headquartered global engineering consultancy active across transport, energy, water, and built environment. Directly comparable in multidisciplinary civil engineering consulting and project supervision, with significant EU infrastructure footprint.
• Arcadis: Global design and consultancy firm with deep European infrastructure, water, and environment practices. Competes with IGH on EU-funded tenders in the Balkans and offers overlapping design, supervision, and laboratory/inspection services.
• Royal HaskoningDHV: Dutch engineering and project management consultancy active across buildings, infrastructure, water, and industry. Directly comparable multidisciplinary service portfolio with strong BIM and digital asset capabilities aligned to IGH's offerings.
• Bureau Veritas: Global testing, inspection, and certification (TIC) giant operating as an EU Notified Body across construction products. Most directly comparable to IGH CERT/CTA on the certification and laboratory testing side, and a benchmark for how scaled TIC businesses monetize regulatory exclusivity.
• TYPSA: Spain-based independent engineering consultancy with strong transport, energy, and water practices across Europe and Latin America. Closely comparable as a mid-sized European engineering consulting firm with similar service breadth and public-client base.

Regional players

• Elea iC (formerly Elektroprojekt): Croatian engineering consulting firm headquartered in Zagreb with regional presence. Direct local competitor for design and supervision mandates on Croatian infrastructure tenders, including energy and transport projects where IGH operates.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCYjJDof4kNhVMMtPVXHmwHA
• LinkedInlinkedin.com/company/igh

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 records

Subsidiaries4 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 INSTITUT IGH