Sigma Muhendislik Hizmetleri Dekorasyon Insaat Limited Sirketi

What Sigma Muhendislik Hizmetleri Dekorasyon Insaat Limited Sirketi does

SIGMA is a multidisciplinary architecture, engineering, and construction (AEC) firm headquartered in Istanbul, Turkey, founded in 1989 by Abuzer Sarı as a static/structural design office and now operating with approximately 490 employees across architecture, structural, mechanical, electrical, geotechnical, environmental, fire, façade, and infrastructure disciplines. The firm organizes its offering into four categories — Design, Planning, Consultancy, and Project Management — and supports multiple project delivery models including Design-Bid-Build, Design-Build, and its proprietary "Seamless Project Delivery" method, which provides single-point responsibility across pre-project, project, and post-project phases.

The company's working environment is built around Building Information Modeling (BIM), used to coordinate architectural, structural, mechanical, and electrical engineering in 3D models across all projects. Combined with agile project management and value engineering practices, BIM is positioned as both an internal delivery platform and a customer-facing differentiator. The firm also offers Operation and Maintenance (O&M) services post-handover, including HVAC, fire, elevator, and electrical systems support.

SIGMA generates revenue through project-based professional services contracts, tendered and negotiated directly with clients — no public pricing exists. Its customer base spans enterprise and government clients across 13+ verticals including healthcare (Istanbul University Hasdal Campus, 605,000 sqm), logistics (Boyner/DB Schenker A+ facilities), hospitality (Lord's Palace, Tashkent Index 700,000 sqm), manufacturing (Prometeon R&D, Federal Electricity), residential (Kibar Holding/Nest Yalova), and public buildings. The firm has completed 5,000+ projects across its 35-year history, with 50+ currently active. Its geographic footprint is anchored in Turkey with a wholly-owned branch in Tashkent, Uzbekistan opened in 2020, and historical project activity in Iraq, Qatar, and Libya.

Name

Sigma Muhendislik Hizmetleri Dekorasyon Insaat Limited Sirketi

Legal name

SİGMA MÜHENDİSLİK HİZMETLERİ DEKORASYON İNŞAAT LTD. ŞTİ.

Website

https://sigmamuhendislik.com.tr

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

251–500 employees

Short description

SIGMA is a Turkish multidisciplinary AEC firm providing architecture, engineering, planning, consultancy, and project management services via BIM-enabled "Seamless Project Delivery." Founded in 1989 in Istanbul, it serves enterprise and government clients across healthcare, logistics, hospitality, industrial, and public sectors in Turkey and Uzbekistan.

Ownership category

akta.pro rank

Product category

Architecture, Engineering, and Construction Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Computer Systems Design Services (541512)

SIC

Services-Computer Integrated Systems Design (7373)

akta.pro industry

PRIMARYBPAHAKAK

Building Information Modeling (BIM) & Digital Design Services

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Architecture, Design & Planning Services

Keywords

• Architecture engineering services
• Building information modeling
• Construction project management
• Multidisciplinary design consultancy
• Structural engineering design

Headquarters

HQ city

Istanbul

HQ country

Türkiye

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural and Engineering Design Services: SIGMA provides comprehensive design services including architecture, interior design, landscape architecture, structural design, municipal infrastructure, electrical engineering, mechanical engineering, fire engineering, facade consulting, geotechnics, environment and water services. These services are delivered as part of their seamless project delivery model.
2. Construction and Project Management Services: SIGMA undertakes construction works, acts as main contractor, and provides project management, construction management, tender management, and design management services. They manage the entire project lifecycle from initiation to close-out.
3. Consultancy Services: Technical consultancy including due diligence, feasibility studies, concept development, test and commissioning, earthquake risk assessment, and building strengthening services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

SIGMA is a multidisciplinary architectural, engineering, and construction (AEC) firm providing design, planning, consultancy, and project management services for buildings and infrastructure. It offers a proprietary "Seamless Project Delivery" method that covers pre-project, project development, and post-project phases under single-point responsibility, supported by Building Information Modeling (BIM) for coordinating architecture, structural, mechanical, and electrical disciplines across commercial, residential, healthcare, hospitality, logistics, industrial, and public-sector projects in Turkey and Uzbekistan.

Product overview

SIGMA is a multidisciplinary architectural, engineering, and construction (AEC) company providing a comprehensive portfolio of services organized around four main categories: Design (Architecture, Interior Design, Landscape Architecture, Structural Design, Municipal Infrastructure and Highway Engineering, Electrical Engineering, BIM, Restoration and Renovation, Mechanical Engineering, Fit-Out and Retrofitting, Geotechnics, Environment and Water), Planning (Industrial District Planning, Master Planning, Due Diligence, Land Selection and Feasibility Studies), Consultancy (Fire, Façade, Earthquake Risk Assessment and Building Strengthening), and Project Management (Design Management, Tender Management, Project Management, Construction Management). The company distinguishes itself through its proprietary 'Seamless Project Delivery' method, which provides turnkey services covering pre-project, project, and post-project phases under single-point responsibility. SIGMA offers multiple project delivery models including traditional Design-Bid-Build and Design-Build approaches, and supports projects across sectors including commercial, residential, healthcare, hospitality, industrial, logistics, education, sports, and public buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Comprehensive architectural design services covering residential, commercial, public, hospitality, healthcare, industrial, and cultural building projects for enterprise, government, and developer clients.
• Interior Design Interior design services for various building types and functions, delivered as part of multi-disciplinary project teams for enterprise and government clients.
• Landscape Architecture Landscape architecture services including healing gardens, public green spaces, and urban landscaping for institutional and developer clients.
• Structural Design Structural engineering and static design services for buildings and infrastructure projects, including seismic-resistant design.
• Municipal Infrastructure and Highway Engineering Design and engineering for municipal infrastructure, roads, highways, and urban transportation systems for public-sector and developer clients.
• Electrical Engineering Electrical engineering design services for buildings and industrial facilities.
• Building Information Modeling (BIM) 3D digital modeling and coordination services using BIM technology for multi-disciplinary project coordination across architectural, structural, mechanical, and electrical disciplines.
• Restoration and Renovation Historic building restoration and renovation services complying with cultural heritage protection laws, including seismic strengthening and adaptive reuse.
• Mechanical Engineering Mechanical engineering services including HVAC, plumbing, and fire protection systems for buildings and industrial facilities.
• Fit-Out and Retrofitting

Quantifiable outcome

• 5000+ projects completed
• +2 more outcomes

Named customers10 records

Segments13 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• BIM4TURKEYcoreStrategic or Co-development Partner · 8 April 2021SIGMA became a strategic partner of the BIM4TURKEY platform, which aims to guide the digital transformation of the construction industry in Turkey. BIM4TURKEY is part of the Building Information Modeling and Management Association and develops BIM usage in Turkey.

Scale indicators5 records

Recent moves6 records

Expansion highlights3 records

Direct peers

• IDOM: Spanish-origin independent engineering and architecture group offering multidisciplinary design, project management, and consultancy across buildings, energy, and infrastructure — a close structural match to SIGMA's integrated service portfolio.
• Arup: Global multidisciplinary engineering and design firm combining architecture, structural, mechanical, electrical, and infrastructure services under a single integrated delivery model — closely comparable to SIGMA's Seamless Project Delivery approach and BIM-led coordination, though at much larger scale.
• Ramboll: European-headquartered engineering, design, and consultancy firm delivering multi-disciplinary services (buildings, transport, energy) with strong sustainability credentials. Comparable to SIGMA in breadth of disciplines and project-based consultancy model.
• HOK (Populous peer for design-led AEC): Global design, architecture, engineering, and planning firm with a multidisciplinary, integrated project delivery approach. Comparable to SIGMA's design-led multi-disciplinary model and emphasis on marquee cultural, healthcare, and commercial projects.

Broad incumbents

• Stantec: Global engineering, architecture, and environmental consulting firm covering buildings, infrastructure, water, and energy. Overlaps with SIGMA's multidisciplinary building and infrastructure design practice, though at much larger scale and broader geographic reach.
• Arcadis: Global design, engineering, and management consulting firm active in buildings, infrastructure, water, and environment. Comparable on multi-disciplinary AEC services and project management, though at significantly larger scale.
• AECOM: One of the largest global AEC firms providing design, consulting, construction, and program management services across virtually all of SIGMA's sectors — represents the upper-bound incumbent comparable.
• WSP Global: Large global professional services firm in engineering, environment, and design with end-to-end project advisory. Comparable as a broader incumbent offering overlapping AEC services at significantly greater scale than SIGMA.

Regional players

• Dar Al-Handasah (Sidara): Middle East-origin international AEC consultancy with deep multi-disciplinary building and infrastructure capabilities across emerging markets. Comparable as a regionally rooted peer expanding into adjacent geographies like Central Asia.
• Prota Mühendislik: Turkish-origin multidisciplinary engineering consultancy active in structural, mechanical, electrical, and infrastructure design. The closest direct domestic Turkish peer to SIGMA in terms of service scope and target market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

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 Sigma Muhendislik Hizmetleri Dekorasyon Insaat Limited Sirketi