Mas Errazuriz

What Mas Errazuriz does

Mas Errázuriz is a Chilean privately-held construction and engineering company, founded in 1980 and headquartered in Santiago (Quilicura district), with regional operations in Peru (Lima) and historical projects in Colombia. The company specializes in underground mining works, civil construction, earthworks, and electromechanical assembly for the mining, energy, and infrastructure sectors across Latin America, operating through four interconnected business areas: Obras Subterráneas (Underground Works), Obras Civiles y Montaje Electromecánico (Civil Works and Electromechanical Assembly), Movimientos de Tierra (Earth Moving), and ME Maquinarias (Heavy Machinery).

The company generates revenue primarily through fixed-price or variable-rate construction and engineering service contracts awarded by major mining and infrastructure clients, with project durations ranging from 24 months to multi-year execution periods. Customer acquisition is driven by direct enterprise field sales, strategic alliances with tier-1 mining companies (including SQM, BHP/Minera Escondida, Codelco, and Buenaventura), competitive tender participation, and presence at international mining trade shows. The company holds ISO 9001, ISO 14001, and ISO 45001 certifications (since 2000) and complies with Chilean Law 20.393, Ley Karin, and Peruvian Law N°30424 for corporate crime prevention.

Mas Errázuriz has invested USD 5 million in technology transformation, deploying smart sensors for real-time equipment monitoring, BIM for digital quality protocols, and intelligent lighting systems for underground operations. With 1,001-5,000 employees, the company operates as a project-based services firm where qualified technical expertise and 45+ years of regional experience form the primary competitive advantage, serving enterprise clients through multi-year contracts awarded via competitive bidding and direct negotiation.

Name

Mas Errazuriz

Legal name

Ingeniería y Construcciones Mas Errázuriz Ltda.

Website

https://maserrazuriz.cl

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Mas Errázuriz is a Chilean construction and engineering company, founded in 1980, specializing in underground mining works, civil construction, earthworks, and electromechanical assembly for enterprise mining, energy, and infrastructure clients across Chile, Peru, and Latin America.

Ownership category

akta.pro rank

Product category

Mining Construction Services

NAICS

Support Activities for Mining (213), Support Activities for Metal Mining (213114)

SIC

Construction, Mining & Materials Handling Machinery & Equip (3530), Construction Machinery & Equip (3531)

akta.pro primary industry

Procurement & Supply Chain for Mine Projects (Long-Lead Equipment, Logistics, Expediting) (IMAKAOAH)

akta.pro secondary industries

Health, Safety & Risk Engineering (Process Safety, HAZOP/HAZID, Emergency Systems) (IMAKAOAO), Expedited Hazmat / Dangerous Goods Expediting (TLADANAK), Hazmat Warehousing & Segregated Storage (Bonded/Compliance Facilities) (TLAIAJAB)

Keywords

• Underground mining construction
• Civil engineering services
• Electromechanical assembly
• Earthworks mining
• Tunneling infrastructure

Headquarters

HQ city

Santiago

HQ country

Chile

HQ region

Latin America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Engineering Services Contracts: Mas Errázuriz generates revenue primarily through fixed-price or variable-rate construction and engineering service contracts awarded by mining, energy, and infrastructure companies. Services include underground mining works, civil construction, earthworks, and electromechanical assembly, billed on a per-project basis with contract values ranging from variable (time-and-materials) to lump-sum arrangements. Projects span 24-month to multi-year execution periods.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels8 records

Core offering

Mas Errázuriz is a construction and engineering services company that executes underground mining works, civil construction, earthworks, and electromechanical assembly for mining, energy, and infrastructure clients across Chile and Latin America. The company operates through four service areas — Underground Works, Civil Works and Electromechanical Assembly, Earth Moving, and ME Maquinarias (heavy machinery provisioning) — and delivers projects on a contract basis through competitive tenders or direct negotiation.

Product overview

Mas Errázuriz is a construction and services company focused on integral project development in mining, hydroelectricity, and infrastructure sectors, with over 45 years of experience in Chile and Latin America. The company operates through four main business areas: Obras Subterráneas (Underground Works), Obras Civiles y Montaje Electromecánico (Civil Works and Electromechanical Assembly), Movimientos de Tierra (Earth Moving), and ME Maquinarias (Heavy Machinery). These interconnected service lines enable the company to deliver comprehensive solutions from underground excavation and civil construction to electromechanical assembly and equipment provision, serving clients across Chile and Peru.

Differentiator

Problem solved

Functional benefit

Products and services

• Obras Subterráneas (Underground Works) Underground excavation and construction services including tunnel construction, mining development, and underground infrastructure, recognized as a regional leader for technical capacity, flexibility, and commitment. Targeted at mining, energy, and infrastructure clients.
• Obras Civiles y Montaje Electromecánico (Civil Works and Electromechanical Assembly) Civil construction and electromechanical assembly services for mining, energy, and infrastructure industries, including structural installation, equipment mounting, and industrial plant construction. Targeted at enterprise clients in mining and energy sectors.
• Movimientos de Tierra (Earth Moving) Earth moving services including open-pit mining exploitation, pre-stripping, platform construction, massive excavations, drilling, loading and transport, mining roads, and tailings dam construction. Targeted at mining and infrastructure clients.
• ME Maquinarias (Heavy Machinery) Heavy machinery and equipment services for construction and mining operations, providing specialized equipment for project execution across the company's four business areas.

Quantifiable outcome

• USD 5 million invested in technology transformation including smart sensors, BIM, and intelligent lighting
• +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

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• Besalco-Stracon (CBS) ConsortiumcoreStrategic or Co-development Partner · 23 September 2024Mas Errázuriz executed the Túnel San Idelfonso project as part of the Besalco-Stracon (CBS) consortium for the Autoridad Nacional de Infraestructura (ANIN) in Trujillo, Peru. The partnership delivered 1,510 meters of tunnel excavation using drill-and-blast methodology from two work fronts.
• Autoridad para la Reconstrucción con Cambios (ARCC)coreStrategic or Co-development PartnerARCC is a Peruvian government authority overseeing post-disaster reconstruction. Mas Errázuriz, as part of the Besalco-Stracon consortium, has executed multiple channel construction and flood control projects (C3, C4, Paquete 06 San Idelfonso) under ARCC contracts for flood protection infrastructure.
• Compañía de Minas Buenaventura S.A.A.coreChannel Partner/ Reseller/ DistributorMas Errázuriz serves as the primary contractor for underground and surface infrastructure development at Buenaventura's San Gabriel Project in Moquegua, Peru, including underground development, tunnel construction, and infrastructure works from 2023–2025.

Scale indicators3 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• Conpax: Chilean construction firm serving mining and infrastructure clients in Chile. Similar mid-market scale, comparable underground and civil works capabilities, and overlapping enterprise mining customer base.
• Echeverría Izquierdo: Chilean engineering and construction firm with comparable underground mining, civil works, and industrial services exposure. Operates in similar Chilean mining customer base and competes for similar scopes at tier-1 miners.
• Cosapi: Peruvian construction and engineering firm with significant mining and infrastructure exposure. Comparable in Peruvian operating footprint and competing for similar scopes against tier-1 miners and government infrastructure tenders.
• Besalco: Chilean construction firm and Mas Errázuriz's actual consortium partner in the Besalco-Stracon (CBS) joint venture for Peruvian infrastructure (San Idelfonso tunnel, ARCC channel projects). Directly comparable in scale, geography, and customer overlap in LatAm mining and infrastructure construction.
• Aterpa: Peruvian mining construction firm specializing in underground and civil works for major miners. Closely comparable in underground mining niche, Peruvian operating geography, and mid-market scale.
• Stracon: Peruvian mining contractor and the other half of the CBS consortium with Mas Errázuriz. Closely comparable in underground mining construction scope, Peruvian operating footprint, and tier-1 mining client base (e.g., Buenaventura, Newmont, Barrick).

Broad incumbents

• Fluor Corporation: Global EPC firm with extensive mining and metals practice serving major copper and lithium producers. Competes for the largest mining capex scopes globally and increasingly targets LatAm growth projects where Mas Errázuriz also bids.
• Hatch: Global engineering and project management firm with deep mining EPC and underground services practice. Competes for the same tier-1 mining scopes at the high end of project complexity, particularly on copper and gold projects in the Americas.
• SalfaCorp: Chilean construction conglomerate with multiple business units including mining, infrastructure, and real estate. Comparable in serving Chilean mining customers and infrastructure, but materially larger and more diversified across residential and commercial construction.
• Sigdo Koppers: Chilean industrial conglomerate with mining services and construction subsidiaries serving the same LatAm mining clients. Wider portfolio (automotive, industrial) but directly comparable in mining construction and EPC-adjacent services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php?id=61580194989284
• LinkedInlinkedin.com/company/mas-err-zuriz
• Instagraminstagram.com/maserrazuriz

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Mas Errazuriz