What Aronsohn does

Aronsohn is a privately held, for-profit consultancy and engineering firm headquartered in Rotterdam, Netherlands. Founded in 1927, the company specializes in construction and project management services and has therefore operated continuously in the Dutch built-environment sector for nearly a century. With between 51 and 100 employees, the firm is positioned as a mid-sized specialist consultancy rather than a large multidisciplinary engineering group or a boutique practice.

The business model implied by the functional description is professional services delivery — engineering and construction consultancy work billed on a project or retainer basis, consistent with Dutch mid-market engineering consultancies of comparable headcount. Specific service line breakdown (e.g., cost consultancy, project monitoring, technical due diligence, BIM services), pricing structure, client segmentation, and project portfolio are not disclosed in the available data.

The available evidence supports a description of Aronsohn as a traditional services firm rather than a technology-enabled platform. There is no disclosed software product, proprietary tooling, data asset, AI/ML capability, geographic footprint beyond Rotterdam, named leadership, or recent strategic activity in the source material. The URL fetch for the corporate website returned a verification/loader page rather than substantive content, leaving firmographic data as the sole basis for assessment. This data gap materially constrains deeper conclusions about competitive positioning, customer base, and forward trajectory.

Name

Aronsohn

Website

https://aronsohn.nl

Company type

Private

Founded year

1927

Headcount range

51–100 employees

Short description

Aronsohn is a Rotterdam-based Dutch consultancy and engineering firm specializing in construction and project management. Founded in 1927, the privately held company employs 51-100 staff and delivers professional services to clients in the built-environment sector.

Ownership category

akta.pro rank

Headquarters

HQ city

Rotterdam

HQ country

Netherlands

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Core offering

Aronsohn is a consultancy and engineering firm that specializes in construction and project management. Headquartered in Rotterdam, Netherlands, the firm provides professional engineering and project management services to clients in the building and construction sectors, drawing on operations established since 1927.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction and Project Management Consultancy
• Engineering Consultancy Services

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Broad incumbents

• WSP: WSP is a global engineering consultancy with established operations in the Netherlands. Its project management and engineering advisory services overlap with Aronsohn, but at materially greater scale and broader geographic reach.
• Stantec: Stantec is a global engineering, consulting, and project management firm with significant Dutch operations. It offers overlapping construction advisory capabilities to Aronsohn's client base but operates at substantially larger scale and broader geographic reach.
• Sweco: Sweco is a pan-European engineering consultancy with major Dutch operations (via its acquisition of Grontmij). It competes broadly with Aronsohn on construction and infrastructure advisory but operates at much greater scale across many geographies.

Direct peers

• IV-Groep: IV-Groep is a Dutch engineering consultancy focused on technical installations, infrastructure, and industrial process engineering. Its construction and project management services overlap with Aronsohn's consulting and engineering focus.
• Antea Group: Antea Group is an international engineering and environmental consulting firm with substantial Dutch operations. It competes with Aronsohn on construction and infrastructure project management mandates in the Netherlands.
• Witteveen+Bos: Witteveen+Bos is a Dutch engineering and consultancy firm specializing in water, infrastructure, and the built environment. Its project management and construction advisory services overlap directly with Aronsohn's offerings.
• Arcadis: Headquartered in Amsterdam, Arcadis is a leading global design, engineering, and project management consultancy. It directly competes with Aronsohn in the Dutch construction and infrastructure engineering services market and serves as the benchmark for the sector's largest players.
• Royal HaskoningDHV: Royal HaskoningDHV is a Netherlands-headquartered engineering consultancy providing project management and engineering services across infrastructure, water, and industry. It directly overlaps with Aronsohn in construction project management consulting for Dutch and European clients.
• Movares: Movares is a Dutch engineering consultancy with strong capabilities in rail, road, and civil infrastructure project management. It is a like-sized Dutch competitor that overlaps with Aronsohn on construction and infrastructure project mandates.

Emerging players

• Tauw: Tauw is a Dutch consulting and engineering firm focused on environment, infrastructure, and construction project management. It overlaps with Aronsohn in Dutch construction advisory, particularly in environmental permitting and compliance - an adjacent specialization.

Market position

Strengths3 records

Weaknesses3 records

Competitive moat3 records

Key risks4 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/aronsohn

Revenue estimate

Valuation estimate

Number of profiles

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 Aronsohn