ARQ Consulting Engineers

What ARQ Consulting Engineers does

ARQ Consulting Engineers (Pty) Ltd is a Pretoria-headquartered specialist civil engineering consulting firm founded in 1993, operating across three divisions: Dams & Hydro, Geotechnical, and Advanced Numerical Analysis. The Dams & Hydro division is internationally recognized for Roller Compacted Concrete (RCC) dam technology, particularly RCC arches, and was the designer of record on the Yusufeli Dam in Turkey (275m double-curvature concrete arch, the highest arch dam outside China) and Changuinola 1 in Panama. The Geotechnical division designs foundations for dams, bridges, tunnels, and roads, with growing specialization in mining infrastructure and tailings storage facilities for clients including Exxaro, Northam Platinum, and DRA Global. The Advanced Numerical Analysis division supports both practices using finite element modelling tools (Rocscience Phase2, GeoStudio Suite, 3D FE models) and proprietary research on RCC stress-relaxation creep behaviour.

The firm operates as a project-based B2B consulting practice, securing engagements through direct client relationships, technical reputation, and leadership positions in industry bodies (ICOLD Vice President Africa, SANCOLD Chair). Customers are concentrated in South African government water agencies (Department of Water Affairs, Amathole District Municipality), state-owned utilities (Eskom), and mining majors, with active projects across more than 33 countries on five continents. Revenue is generated through professional services fees on design, investigation, supervision, and rehabilitation mandates, typically as either prime consultant or sub-consultant to larger EPCM firms. Operating subsidiaries (ARQ Dams Pty Ltd, ARQ Geotech Pty Ltd, ARQ Consulting Engineers Limited in Mauritius) formalize the divisional and international structure. The firm is privately held, founder-managed, ISO 9001:2015 certified, and has 11-50 employees.

Name

ARQ Consulting Engineers

Legal name

ARQ Consulting Engineers (Pty) Ltd

Website

https://arq.co.za

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

ARQ Consulting Engineers is a Pretoria-based specialist civil engineering firm (founded 1993) providing dams & hydro, geotechnical, and advanced numerical analysis consulting services to government water agencies, mining companies, and utilities across 33+ countries.

Ownership category

akta.pro rank

Product category

Civil Engineering Consulting

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413), Engineering Services (541330)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

akta.pro secondary industries

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD), Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Dam engineering consulting
• Geotechnical engineering services
• RCC dam technology
• Finite element analysis
• Hydropower consulting

Headquarters

HQ city

Pretoria

HQ country

South Africa

HQ region

Africa

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional consulting services for dam and hydro projects, geotechnical investigations, and advanced numerical analysis. Revenue generated through project-based consulting fees for design, investigation, and supervision services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

ARQ Consulting Engineers is a specialist civil consulting engineering firm that delivers dam and hydro engineering, geotechnical engineering, and advanced numerical analysis services for large-scale infrastructure projects. Its Dams & Hydro division designs, evaluates, and rehabilitates roller-compacted concrete (RCC) dams (with particular expertise in RCC arches); its Geotech division provides foundation, slope stability, lateral support, and tailings storage facility design; and its Advanced Numerical Analysis division supplies specialist finite element modelling and structural mechanics analysis supporting both internal divisions and external clients.

Product overview

ARQ Consulting Engineers is an award-winning consulting engineering firm organized into three main service divisions: Dams & Hydro, Geotech, and Advanced Numerical Analysis. The Dams & Hydro division specializes in RCC (Roller Compacted Concrete) dam technology, particularly RCC arches, providing comprehensive dam design, evaluation, and rehabilitation services. The Geotech division offers foundation design services for structures including dams, bridges, tunnels, and roads, along with geotechnical investigations and slope stability assessments. The Advanced Numerical Analysis division provides specialist finite element modelling and structural analysis capabilities that support both the Dams and Geotech divisions. The company also offers tailings storage facility design and monitoring services.

Differentiator

Problem solved

Functional benefit

Products and services

• Dams & Hydro Engineering Services Internationally recognized consulting division providing design, evaluation, rehabilitation, and construction supervision services for dam and hydroelectric projects, with specialisation in Roller Compacted Concrete (RCC) dams and RCC arches.
• Geotechnical Engineering Services Geotechnical division designing foundations for dams, bridges, tunnels, roads, and mining infrastructure, with expertise in slope stability, lateral support, geotechnical investigations, and tailings storage facility design and monitoring.
• Advanced Numerical Analysis Services Specialist finite element modelling and numerical analysis service applying state-of-the-art software (including Rocscience Phase2 and GeoStudio Suite) to develop optimal structural and geotechnical solutions, including critical state soil mechanics (NorSand) for tailings stability.

Quantifiable outcome

• De Hoop Dam constructed at 30% cost of alternative radial gate option for Midmar Dam raising
• +2 more outcomes

Named customers7 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

Feature2 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• IC Consulenten (Austria)coreTechnology or IntegrationARQ is interfacing with IC Consulenten of Austria for the Yusufeli Dam project, who provide specialist inputs and analysis for the foundation rockmass and all related investigation and modelling.
• ZutaricoreImplementation/ SI/ Consulting PartnerARQ served as geotechnical sub-consultant to Zutari for the TASEZ Development project in Pretoria.
• Nako IllisominorImplementation/ SI/ Consulting PartnerARQ served as geotechnical sub-consultant to Nako Illiso for the TASEZ Development project.
• TrenconminorImplementation/ SI/ Consulting PartnerARQ served as geotechnical sub-consultant to Trencon for the TASEZ Development project.
• Ndodana Consulting EngineersminorImplementation/ SI/ Consulting PartnerARQ served as geotechnical sub-consultant to Ndodana for the TASEZ Development project.
• Rockland GeosciencecoreStrategic or Co-development PartnerCollaborative services with Rockland Geoscience for the Dorstfontein Coal Mine East highwall design and monitoring.
• Lux-Consult and PDNA InternationalcoreImplementation/ SI/ Consulting PartnerARQ appointed as sub-consultants to Lux-Consult and PDNA International for Arnaud Dam design in Mauritius.
• Wave Solutions (Australia)coreImplementation/ SI/ Consulting PartnerARQ served as sub-consultants to Wave Solutions of Australia for the Mukurumudzi Dam in Kenya.
• DRA GlobalcoreImplementation/ SI/ Consulting PartnerARQ appointed as Geotechnical Consultant by DRA Global, the main EPCM contractor, for the Booysendal Mine expansion project.
• ICOLD - AfricacoreStrategic or Co-development PartnerDr. Quentin Shaw serves as Vice President of ICOLD - AFRICA, representing South Africa and ARQ at international level.
• SANCOLDcoreStrategic or Co-development PartnerHenry-John Wright serves as Chairman of SANCOLD (South African National Committee on Large Dams).

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• SRK Consulting: SRK Consulting is a global mining and infrastructure consulting firm with strong tailings, geotechnical, and water resource practices. It competes head-to-head with ARQ Geotech for mining clients such as Exxaro and Northam Platinum on tailings and slope stability work.
• Knight Piésold: Knight Piésold is a global specialist consulting firm focused on dams, hydropower, and mining geotechnics including tailings storage facility design. Its service mix and project types directly mirror ARQ's Dams & Hydro and Geotech divisions, especially across Africa and the Americas.
• Coyne et Bellier (Artelia): Coyne et Bellier, now part of Artelia, is a French engineering consultancy historically focused on dam and hydropower projects worldwide. It is comparable to ARQ in its deep specialisation in dam engineering and pursuit of large international water infrastructure commissions.
• Stucky (part of Gruner): Stucky is a Swiss engineering consultancy internationally renowned for large dam and hydropower design. Comparable to ARQ as a specialist dam engineering firm competing for major RCC and arch dam commissions globally.

Regional players

• Aurecon: Aurecon is a major Africa-anchored engineering consultancy with global reach across dams, water, and geotechnical work. It is comparable as a direct competitor for large dam and infrastructure commissions in South Africa and the broader African market where ARQ also bids.
• Zutari: Zutari is a leading South African engineering consultancy with water, dams, and infrastructure capability. It is both a peer (competing for South African government and dam work) and a documented ARQ partner (geotechnical sub-consultant on TASEZ).

Broad incumbents

• Hatch: Hatch is a global engineering consultancy with strong mining infrastructure and tailings capabilities. It competes with ARQ Geotech on tailings and mine geotechnical assignments from major mining houses, while also serving broader EPCM scopes.
• WSP: WSP is a global professional services firm with significant water, dams, and earth engineering practices. Comparable as a broad incumbent that competes with ARQ for large government water infrastructure and mining geotechnical mandates, particularly in Africa.
• GHD: GHD is a global engineering, architecture, and environmental consulting firm with established water and dams practice. Comparable as a larger incumbent that overlaps ARQ's water infrastructure and geotechnical service lines across multiple geographies.
• Arup: Arup is a global engineering consultancy with water, dams, and advanced numerical analysis capabilities. Comparable as a broad incumbent whose specialist structural and FE modelling teams compete for the kind of complex dam engineering projects ARQ delivers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/icold-cigb

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries3 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 ARQ Consulting Engineers