STFA

What STFA does

STFA (Sezai Türkes – Feyzi Akkaya) Yatırım Holding A.Ş. is a privately held Turkish investment holding company founded in 1938 and headquartered in Istanbul. Its core operating subsidiary, STFA Construction Group, delivers EPC contracts across marine works, civil/infrastructure, oil & gas, power, and soil works, with a 27-country footprint anchored in the Middle East, North Africa, the Caucasus, and South Asia. The group also comprises SIF-JCB (exclusive JCB heavy equipment distributor in Turkey for over 40 years, operating 13 sales points and 35 service centers), ECAP (engineering consultancy established 2003), STFA Temel Araştırma ve Sondaj (geotechnical and drilling), STFA Deniz İnşaatı (marine construction), and the Al Habtoor-STFA Soil Group joint venture in the UAE.

Revenue is generated through one-time EPC contracts awarded via competitive bidding with government agencies and large enterprises (e.g., Qatar Metro Gold Line as STFA's largest EPIC contract; Nador Port in Morocco; Poti Port in Georgia; Akkuyu Nuclear Power Plant soil works), supplemented by hardware sales and aftermarket service from SIF-JCB. Pricing is project-based and not publicly disclosed. Go-to-market is enterprise field sales targeting government infrastructure ministries and energy/utility counterparties, with frequent joint ventures (STFA-BESIX, STFA-FERNAS-KALYON, Al Habtoor-STFA) to access restricted markets and share execution risk.

The company is family-controlled by the Taşkent family (with Adnan Nas as Chairman and CEO), with no public listing, no institutional PE backing, and no disclosed funding rounds. The Khan Academy Türkçe initiative, operated under the STFA Foundation since 2012, is a CSR/education brand asset rather than a revenue-generating product line. STFA's engineering lineage and 30+ year ENR Top 250 International Contractors standing (ranked 185th in 2025) are the primary differentiators.

Name

STFA

Legal name

STFA Yatırım Holding A.Ş.

Website

https://stfa.com

Company type

Private

Founded year

1938

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

STFA is a privately held Turkish investment holding company, founded in 1938, that delivers EPC contracts and heavy equipment distribution across 27 countries, primarily serving government infrastructure and energy clients.

Ownership category

akta.pro rank

Product category

Heavy Civil Construction / EPC Infrastructure Services

NAICS

Other Heavy and Civil Engineering Construction (237990), Utility System Construction (2371), Power and Communication Line and Related Structures Construction (237130), Construction Machinery Manufacturing (333120)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Construction Machinery & Equip (3531)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industries

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Storage & Conveyance Structures (Reservoirs, Tanks, Culverts, Tunnels) (IMAFAGAE), Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF)

Keywords

• EPC construction services
• Marine infrastructure works
• Heavy equipment distribution
• Geotechnical engineering services
• Civil infrastructure contracting

Headquarters

HQ city

Istanbul

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. EPC Contracts: Engineering, Procurement, and Construction contracts for large-scale infrastructure projects including ports, bridges, tunnels, highways, energy transmission lines, and marine structures.
2. Construction Services: Civil/Infrastructure construction including Container Terminals, Commercial and Marine Ports, LNG Terminals, Bridges, Dams, Highways, Tunnels, Railways, Hydraulic Structures, Water and Waste Water Transmission Lines, Housing Buildings, and Power Transmission Lines.
3. Heavy Equipment Sales and Service: SIF-JCB business machines distribution: 8 cities with 13 sales points and 35 authorized technical service centers across Turkey.
4. Foundation and Geotechnical Services: STFA Temel Araştırma ve Sondaj A.Ş. provides soil investigation, drilling, geophysical measurements, and seismic assessment services.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

STFA is fundamentally a Turkish construction and infrastructure holding company that delivers turnkey EPC (Engineering, Procurement, Construction) contracts in marine works, civil/infrastructure, oil & gas, power, and soil works across 27 countries. Its wholly-owned subsidiary STFA Construction Group executes ports, bridges, tunnels, highways, container terminals, LNG terminals, dams, railways, hydraulic structures, and power transmission lines; SIF-JCB distributes JCB heavy construction equipment throughout Turkey; and ECAP provides engineering consultancy and project management services.

Product overview

STFA (Sezai Türkeş – Feyzi Akkaya) Yatırım Holding is a Turkish investment holding company founded in 1938, operating primarily in construction and heavy equipment sectors. The group comprises STFA Construction Group as its core construction division undertaking EPC contracts in marine, civil/infrastructure, oil & gas, power, and soil works across 27 countries; SIF-JCB as its heavy equipment distribution business; ECAP for engineering and consultancy services; Khan Academy Türkçe as its education initiative; STFA Temel Araştırma ve Sondaj for foundation and drilling services; and STFA Deniz İnşaatı for marine construction. The group operates from Turkey with projects spanning multiple international markets.

Differentiator

Problem solved

Functional benefit

Brands

• Khan Academy Türkçe: The Turkish localization of Khan Academy, operated under the STFA Foundation for Translation of Scientific and Technical Publications. First international affiliate of Khan Academy, launched in 2012.

Quantifiable outcome

• Successfully delivered projects in 27 countries
• +2 more outcomes

Named customers8 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

Nine partnerships are on record, tiered minor and core.

• Turkcell AkademiminorGTM or Marketing PartnerKhan Academy Türkçe content is streamed through Turkcell Akademi platform, extending reach to Turkcell's mobile subscriber base. Khan Academy serves as major content provider with over 2,000 Turkish educational videos available on the platform.
• BESIXcoreStrategic or Co-development PartnerSTFA and BESIX joint venture for Poti Port Reconstruction of Existing Breakwater Project in Georgia. Both companies proceeding with reconstruction works at Port of Poti.
• STFA-FERNAS-KALYON Joint VenturecoreStrategic or Co-development PartnerJoint venture undertaking Erbil Drinking Water Improvement and Erbil & Duhok Network Project in Iraq. Groundbreaking ceremony attended by Kurdistan Regional Government Prime Minister Nechervan Barzani.
• Al Habtoor Engineering Enterprise Co. L.L.CcoreStrategic or Co-development PartnerEstablishment of Al Habtoor-STFA Soil Group L.L.C. in Dubai (2005) as joint venture for soil and foundation works in UAE market.
• Turkish Ministry of National EducationcoreStrategic or Co-development PartnerCollaboration agreement for Khan Academy Türkçe content distribution through EBA (Educational Informatics Network). Khan Academy content available to all students and teachers in Turkey. Minister of National Education meeting in 2020 to strengthen collaboration under 2023 Education Vision.
• Kasktaş Kayar Kalıp Altyapı Sondaj Kazık ve Tecrit A.ŞminorStrategic or Co-development PartnerSTFA Temel Araştırma ve Sondaj A.Ş. signed soil improvement contract with Kasktaş for Akkuyu Nuclear Power Plant 10UQA Main Pump Station works.
• GAP İnşaat Yatırım ve Dış Ticaret A.ŞminorStrategic or Co-development PartnerSTFA Temel Araştırma ve Sondaj A.Ş. contracted for soil improvement works of Garabogaz Fertilizer Factory SWIO area in Turkmenistan through GAP İnşaat.
• JCB (J.C. Bamford Excavators Ltd)coreChannel Partner/ Reseller/ DistributorSIF-JCB distributes JCB heavy equipment in Turkey for over 40 years. 8 cities, 13 sales points, and 35 authorized technical service centers nationwide.
• Isıklar HoldingcoreStrategic or Co-development PartnerSIF Otomotiv established as subsidiary of STFA and Isıklar Holding in 1956 for construction equipment sector distribution.

Scale indicators8 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• BESIX: Belgian-based international EPC contractor and STFA's explicit JV partner for the Poti Port project in Georgia. Directly comparable as a heavy civil and marine construction specialist operating across MENA, Africa, and Europe.
• Calik Holding: Turkish diversified holding with construction arm building airports, roads, energy, and industrial facilities across MENA and Central Asia. Comparable as a family-controlled Turkish conglomerate with international construction focus.
• Kolin Construction: Turkish EPC contractor delivering transportation infrastructure, energy, and building projects domestically and abroad. Directly comparable in scale and Turkish-headquartered international contractor profile.
• Limak Holding (Limak Construction): Turkish conglomerate with construction arm delivering airports, ports, highways, and energy infrastructure internationally. Highly comparable to STFA in scale, geographic focus on MENA and Africa, and family-controlled governance.
• Makyol Construction: Turkish EPC contractor delivering transportation, infrastructure, energy, and superstructure projects domestically and abroad. Comparable scale and Turkish international contractor profile to STFA.
• Tekfen Holding: Turkish holding with major construction EPC business alongside industrial and agricultural operations. Comparable as a publicly listed Turkish diversified group with construction roots and international project delivery.
• Nurol Construction: Turkish construction and engineering firm operating in infrastructure, defense facilities, energy, and real estate internationally. Comparable as a family-controlled Turkish EPC with MENA and CIS project presence.
• Ronesans Holding: Turkish construction and infrastructure conglomerate active in PPP projects, energy, real estate, and industrial facilities. Comparable scale and Turkish-headquartered international EPC profile.
• ENKA Insaat: Turkey's largest international EPC contractor, ranked significantly higher on ENR Top 250 than STFA. Directly comparable as a Turkish-headquartered general contractor with diversified EPC delivery across power, infrastructure, oil & gas, and real estate in MENA, CIS, and Africa.
• Ant Yapi: Turkish general contractor active in construction, infrastructure, and real estate development internationally. Comparable in scale and Turkish contractor profile with presence in CIS and Europe.

Market position

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/stfa-construction-group
• Xx.com/STFAGrup
• Facebookfacebook.com/STFAHR

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries6 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 STFA