OCSC

What OCSC does

OCSC (O'Connor Sutton Cronin & Associates) is a privately held multidisciplinary consulting engineering firm founded in 1988 and headquartered in Dublin, Ireland. With a workforce of 250+ staff and offices in Dublin, Cork, Galway, Belfast, Birmingham, and London, the firm delivers integrated civil, structural, mechanical and electrical (MEP), transportation, environmental, and sustainability engineering services. Its core technology stack centers on Building Information Modelling (BIM) for design coordination, clash detection, and multi-stakeholder value engineering across complex construction and infrastructure projects. Notable technical credentials include delivery of The Exo (Dublin's tallest office building with 17 storeys and 21m cantilever ends), the Central Bank of Ireland headquarters (first Irish office to achieve BREEAM Outstanding at design stage), and the €105M LUAS Cross City Infrastructure Works as design partner within the SISK/Steconfer Joint Venture.

The firm serves real estate developers, government and local authorities, and private-sector clients across residential, commercial, hospitality, education, healthcare, transport, and heritage-conservation sectors. Its Energy & Sustainability Team, founded in 2008, is a member of the Irish Green Building Council (IGBC) and U.S. Green Building Council (USGBC) and has published over 5,000 Building Energy Ratings (BERs) since 2012. Revenue is generated through project-based professional services fees earned on consulting engagements secured via competitive tendering and direct appointments. OCSC has completed over 11,000 projects spanning 40 million square meters of built area across its 36-year operating history, with no external funding rounds, M&A activity, or public listing evidenced in the data.

Name

OCSC

Legal name

O'Connor Sutton Cronin & Associates

Website

https://ocsc.ie

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

251–500 employees

Short description

OCSC is a privately held, Ireland- and UK-based multidisciplinary consulting engineering firm (founded 1988, 250+ staff) delivering integrated civil, structural, MEP, sustainability, environmental, BIM, and transportation engineering services to real estate developers, government bodies, and private-sector clients via project-based consulting fees.

Ownership category

akta.pro rank

Headquarters

HQ city

Dublin

HQ country

Ireland

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional consulting fees for civil, structural, mechanical, and electrical engineering services across construction and infrastructure projects. Services provided on project-by-project basis through direct appointments or competitive tendering.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

OCSC is a multidisciplinary consulting engineering firm providing civil, structural, mechanical and electrical (MEP), transportation, environmental, and sustainability engineering services for building and infrastructure projects. The firm delivers coordinated engineering consultancy from feasibility through construction and handover, leveraging Building Information Modelling (BIM) for design coordination and clash detection across Ireland and the UK.

Product overview

OCSC (O'Connor Sutton Cronin) is a multidisciplinary engineering consulting firm offering a unified portfolio of integrated engineering services rather than discrete software products. The core service offering encompasses Civil Engineering, Structural Engineering, Mechanical and Electrical (MEP) Engineering, Sustainability and Energy Services, Environmental Services, Building Information Modelling (BIM), and Transportation Engineering. These services are delivered as an integrated multidisciplinary package, where project teams coordinate across all disciplines to provide clients with comprehensive engineering solutions from feasibility through construction and handover. The firm serves diverse sectors including residential, commercial, hospitality, education, healthcare, infrastructure, and heritage projects across Ireland and the UK.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Services

Quantifiable outcome

• Over 11,000 projects completed in 36 years
• +3 more outcomes

Named customers13 records

Segments5 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

Three partnerships are on record, tiered flagship and strategic.

• SISK Steconfer Joint VentureflagshipStrategic or Co-development Partner · 17 June 2017OCSC was the design partner within the Sisk/Steconfer Joint Venture for the €105M LUAS Cross City Infrastructure Works project, responsible for structural and building services design of the main depot, sanding shed, wash plant, and sub-stations.
• IGBC (Irish Green Building Council)strategicOthersOCSC is a member of the Irish Green Building Council, utilizing their sustainability frameworks and certification methodologies for building projects.
• USGBC (U.S. Green Building Council)strategicOthersOCSC is a member of the U.S. Green Building Council, enabling them to deliver LEED-certified sustainable building projects.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Arup: Global engineering consultancy with a significant Dublin presence competing across structural, civil, MEP and sustainability engineering for the same Irish/UK public and private clients.
• Mott MacDonald: Multidisciplinary engineering consultancy with established Irish and UK offices, competing for infrastructure, transportation and building services mandates including LUAS-style transport projects.
• WSP: Global professional services firm with substantial Dublin and UK operations providing property, transportation and environmental engineering, overlapping directly with OCSC's service lines.
• AECOM: Global infrastructure consultancy delivering civil, structural, MEP and environmental services across Ireland and the UK, competing for the same public sector and developer-led mandates.
• AtkinsRéalis: Major engineering services firm with Irish and UK infrastructure operations spanning transportation, structural and building services, comparable in scope to OCSC's multidisciplinary offering.

Direct peers

• Punch Consulting Engineers: Irish multidisciplinary civil and structural engineering consultancy of comparable size, focused on residential, commercial and infrastructure projects in Ireland and the UK.
• TOBIN Consulting Engineers: Ireland-based multidisciplinary engineering consultancy providing civil, structural, mechanical and electrical services, directly comparable in size and geography to OCSC.
• BDP (Building Design Partnership): UK-headquartered multidisciplinary design practice integrating architecture, structural and MEP engineering for buildings, directly comparable in integrated delivery model to OCSC.
• Cundall: Multidisciplinary engineering consultancy operating across UK and Ireland with strong sustainability credentials (BREEAM, LEED), closely comparable in service mix and ESG positioning to OCSC.
• Waterman Group: UK and Ireland engineering consultancy delivering civil, structural, MEP and environmental services, comparable in scale and service breadth to OCSC's practice.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/SuttonCronin

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 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 OCSC