Sian

What Sian does

Sian (legal entity: SIAN INGENIERÍA Y CONSTRUCCIÓN SPA) is a Chilean multidisciplinary engineering consultancy headquartered in Providencia, Santiago, with operations spanning Chile, Argentina, Peru, and Mexico. Founded in 2009 and led by partners Oscar Loyola Acuña (25 years of structural engineering experience) and Enrique Strobl Hartung (30 years of experience), the firm delivers engineering services — from conceptual and feasibility studies through basic and detailed engineering — to large mining operators, EPC contractors, and engineering consulting firms in the mining, energy, and industrial sectors.

Sian's core technology platform combines structural, civil, mechanical, piping, process, electrical, and instrumentation engineering disciplines, executed with 3D modeling tools including Tekla Structures and Tekla Designer. Its service portfolio comprises eight integrated lines: multidisciplinary engineering, value engineering and CAPEX/OPEX reduction, dynamic stability and vibration control analysis, the ERC SIAN® shared-risk estimation model for EPC bidders, specialized structural connection review (Modelo de Revisión SIAN®), NCh 2369 seismic review for industrial facilities, structural design counterpart services, and structural steel detailing. The firm also operates an agency office relationship with Huayin Steel Structure Engineering (China) to supply fabricated structural steel.

Commercially, Sian operates as a private, partner-owned professional services firm targeting enterprise clients primarily through direct advisory engagements and strategic alliances with partner engineering offices. Revenue is generated via consulting fees on project-based engagements, with no public pricing disclosed and customer acquisition driven by project references and long-standing relationships with Tier 1 mining operators including BHP, Codelco, KGHM, Anglo American, Barrick, and Shougang. The firm has no external institutional investors and no public funding history.

Name

Sian

Legal name

SIAN INGENIERIA Y CONSTRUCCION SPA

Website

https://sian.cl

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

Sian (SIAN INGENIERÍA Y CONSTRUCCIÓN SPA) is a Chilean multidisciplinary engineering consultancy delivering structural, civil, mechanical, and process engineering — plus specialized seismic, dynamic, and value-engineering services — to large mining, energy, and industrial operators across Chile, Argentina, Peru, and Mexico.

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Engineering Services (541330)

SIC

Services-Engineering Services (8711), Services-Management Consulting Services (8742)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

Keywords

• Multidisciplinary engineering services
• Mining engineering consulting
• Structural steel detailing
• Seismic structural review
• Value engineering services

Headquarters

HQ city

Providencia

HQ country

Chile

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting and Advisory Services: SIAN provides multidisciplinary engineering consulting services for mining, energy, and industrial projects. Revenue is generated through professional services engagements including engineering design, peer review, as-counterpart engineering, seismic review, and structural detailing. Services range from conceptual through detailed engineering and construction support.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

SIAN is a multidisciplinary engineering firm providing consulting and advisory services across structural, civil, mechanical, piping, process, electrical, and instrumentation engineering for mining, energy, and industrial projects. The company delivers services from conceptual through detailed engineering phases, including peer review, as-counterpart engineering, seismic review per NCh 2369, dynamic stability analysis, connection review, structural steel detailing, and value engineering focused on CAPEX/OPEX reduction. Project teams of 15-20 professionals are deployed for major engagements with enterprise mining operators and EPC contractors.

Product overview

SIAN (SIAN INGENIERÍA Y CONSTRUCCIÓN SPA) is a multidisciplinary engineering services company with over 25 years of experience in mining, energy, and industrial projects. The company operates as a unified service offering rather than a software platform, providing eight interconnected engineering service lines: (1) Ingeniería Multidisciplinaria as the core offering covering conceptual through detail engineering across multiple disciplines; (2) Gestión del Valor e Ingeniería de Valor for cost optimization; (3) Análisis de Estabilidad Dinámica de Estructuras – Control de Vibraciones for dynamic analysis; (4) Modelo de Servicio ERC SIAN® for shared-risk estimation; (5) Revisión Especializada de Conexiones for connection design review; (6) Revisión Sísmica – NCh 2369 for seismic certification; (7) Contraparte para Revisión de Diseño Estructural as engineering counterpart; and (8) Detallamiento de Acero Estructural for steel detailing. An additional service covers structural steel supply through partnership with Huayin Steel Structure Engineering.

Differentiator

Problem solved

Functional benefit

Products and services

• Multidisciplinary Engineering (Ingeniería Multidisciplinaria) Multidisciplinary engineering services covering conceptual, pre-feasibility, basic, and detail engineering across Structural, Civil, Mechanical, Piping, Processes, Electrical, Instrumentation, and Project Management disciplines. Includes 3D modeling and detailing using Tekla Structures and Tekla Designer. Targeted at mining, energy, and industrial project developers.
• Value Management and Value Engineering (Gestión del Valor e Ingeniería de Valor) Value management and value engineering services focused on reducing CAPEX and OPEX through innovation methodologies, high-impact ideas, and collaborative environments with project teams. Targeted at mining and industrial capital projects seeking cost optimization.
• Dynamic Stability Analysis and Vibration Control (Análisis de Estabilidad Dinámica de Estructuras) Dynamic stability analysis and vibration control services for structures and foundations of equipment, including static and seismic analysis, standard loads, vibration analysis, concrete pillars, and foundation design with reinforcement bar design. Applied to mills, crushers, conveyors, turbines, and fans.
• ERC SIAN® Shared-Risk Estimation Service Model Collaborative service model directed at EPC construction companies, providing technical support during proposal preparation with shared-risk cost estimation services for competitive project delivery. Designed to increase EPC award probability through more accurate estimates.
• Specialized Connection Review (Revisión Especializada de Conexiones) Specialized connection design review services ensuring compliance with normative standards and client criteria, using the SIAN® Review Model that incorporates concept review to eliminate the 'gray zone' in structural integrity. Connections typically represent 8% to 35% of structural weight.
• Seismic Review per NCh 2369 (Revisión Sísmica – NCh 2369) Independent seismic review services per Chilean standard NCh 2369.Of2003 for seismic design of industrial structures and facilities, providing certification of designs with a preventive collaborative approach. Targeted at industrial facilities in earthquake-prone regions.
• Engineering Counterpart for Structural Design Review (Contraparte para Revisión de Diseño Estructural) Engineering counterpart services for structural design review, focusing on cost reduction and seeking savings opportunities while providing preventive support to engineering design offices. Delivered to EPC contractors and project owners during feasibility, basic, and detailed engineering phases.
• Structural Steel Detailing (Detallamiento de Acero Estructural) Structural steel detailing services for connections, which typically represent 8% to 35% of structural weight, providing safe and economical connection designs.
• Fabricated Structural Steel Supply (Agency Office for Huayin Steel Structure Eng. China Co. Ltd.) Agency office services for Huayin Steel Structure Engineering (China) Co. Ltd., providing structural steel supply and fabrication services to SIAN's Chilean and international clients. Facilitates supply of fabricated structural steel from China alongside engineering and detailing services.

Quantifiable outcome

• Significant CAPEX reductions achieved on major mining projects through engineering counterpart services and value engineering

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Huayin Steel Structure Eng. (China) Co. Ltd.minorChannel Partner/ Reseller/ DistributorSIAN operates as an Agency Office for Huayin Steel Structure Eng. (China) Co. Ltd., facilitating the supply of fabricated structural steel from China to SIAN's Chilean and international clients. This partnership enables SIAN to offer fabricated structural steel as part of its service portfolio alongside engineering and detailing services.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Tetra Tech: Engineering and consulting firm that is also a current SIAN client (Tetra Tech engages SIAN for sub-scopes on Codelco and other mining projects). Competes for feasibility and basic engineering work in Latin America mining and overlaps directly on resource-sector counterpart engineering.
• IDOM: Spanish-headquartered engineering consultancy with strong Latin America presence and mining/industrial practice. Comparable to SIAN in size, multidisciplinary scope, and Spanish-language execution for counterpart engineering on Andean mining clients.
• SENER: Spanish engineering and technology group with mining, energy, and industrial infrastructure practices across Latin America. Comparable mid-sized multidisciplinary engineering peer competing for counterpart and structural design work on regional mining projects.
• Ausenco: Engineering consultancy focused on mining and metals projects with deep Latin America (Chile, Peru) operations. Directly competes with SIAN for counterpart engineering, structural design, and value engineering on concentrators and process plants across the same Andean mining customer base.
• Hatch: Global engineering consultancy with strong mining practice serving BHP, Anglo American, Barrick, and Codelco. Directly competes for structural, mechanical, and process engineering counterpart work on the same copper and gold megaprojects where SIAN engages.

Broad incumbents

• Bechtel: Global EPC and engineering firm with mining and metals practice. Competes with SIAN for engineering scopes within larger mining megaproject packages, often as a prime contractor that absorbs SIAN's specialist niches as subcontracted work.
• Worley: Global energy, chemicals, and resources engineering and project delivery firm with established Chilean operations. Competes for the same counterpart engineering and EPC support work as SIAN but at much larger scale and broader portfolio.
• Wood Group: Global engineering consultancy with mining and metals capabilities serving majors in the Americas. Competes with SIAN for structural, mechanical, and process engineering scopes on copper and gold projects at larger scale.
• Mwh Global (Stantec): Global engineering, architecture, and consulting firm with mining and water/industrial infrastructure practices across Latin America. Overlaps with SIAN on engineering design and project review services for industrial and resource-sector clients.
• Jacobs Solutions: Diversified professional services firm with critical mission solutions, advanced facilities, and infrastructure practices that overlap with SIAN's structural and seismic engineering scope for mining and industrial clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Sian