S.Walsh & Sons

Name

S.Walsh & Sons

Legal name

GRS Integrated Solutions Limited

Website

https://swalsh.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

501–1,000 employees

Ownership category

akta.pro rank

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Construction Project Services: Revenue generated through one-time project-based contracts for civil engineering, earthworks, and enabling works services. Projects vary in scope and scale, from road construction to environmental remediation sites. The company operates as a contractor delivering completed infrastructure projects to clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

S.Walsh & Sons (trading as ISC / IS Contracting) is a UK civil engineering contractor that delivers Enabling Works (site preparation, ground clearance, demolition, drainage, access roads), Earthworks (excavation, soil stabilisation, land grading, material handling), and Civil Engineering (roads, bridges, drainage systems, utility networks) for public and private sector infrastructure projects across London, Essex, and the wider UK.

Product overview

ISC is a civil engineering and construction company offering three integrated service lines: Enabling Works (site preparation and preliminary construction), Earthworks (large-scale excavation and land grading), and Civil Engineering (infrastructure construction including roads, bridges, and drainage systems). The company operates across London, Essex, and the wider UK, positioning these services as a unified portfolio for infrastructure development and transformative construction projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Enabling Works Site preparation and preliminary construction activities including ground clearance, demolition, drainage installation, and access road construction to prepare sites for main construction works. Targeted at public and private sector clients needing ready-to-build sites across the UK.
• Earthworks Large-scale earth moving operations including excavation, soil stabilization, land grading, and material handling for infrastructure and development projects. Targeted at developers, contractors, and public-sector clients requiring ground engineering capacity.
• Civil Engineering Construction of infrastructure elements including roads, bridges, drainage systems, and utility networks for commercial and public sector projects. Targeted at public-sector infrastructure programmes (e.g., Cornwall Council) and private developers.

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Direct peers

• Kier Group: UK-listed civil engineering and infrastructure contractor with significant exposure to roads, earthworks, and public sector frameworks. Directly comparable to ISC in service mix and customer base, though operating at materially larger scale.
• Galliford Try: UK-listed construction group with significant infrastructure and highways exposure. Direct competitor for UK public sector civil engineering work of comparable scope and contract size.
• Morgan Sindall Group: UK construction and infrastructure group with a dedicated infrastructure division delivering enabling works, earthworks, and civil engineering. Closest comparable in service portfolio and regional UK operating model.
• John Sisk & Son (SISK): Ireland-headquartered international contractor with a UK civil engineering and infrastructure business. Comparable service mix across earthworks, roads, and enabling works in the UK and Ireland markets.
• Bowmer + Kirkland: Privately held UK contractor delivering civil engineering, infrastructure, and enabling works. Closest comparable in size, private ownership structure, and mid-cap Tier-2 contractor positioning.

Broad incumbents

• BAM Construct (Royal BAM): UK operations of Royal BAM Group, delivering civil engineering and infrastructure projects comparable to ISC's portfolio. Larger incumbent with broader geographic and service scope.
• Skanska UK: UK arm of Skanska, a global contractor with strong presence in civil engineering, roads, and infrastructure. Comparable service set, larger balance sheet, and broader project scale than ISC.
• Wates Group: Privately held UK construction group with public sector and infrastructure exposure. Overlaps with ISC on enabling works and civil engineering within a broader building-focused portfolio.
• Balfour Beatty: Large UK-listed infrastructure group delivering highways, utilities, and earthworks nationally. Same product categories as ISC but at a substantially larger scale and with broader geographic reach.
• Mace Group: UK-headquartered international construction and consultancy group with infrastructure and civil engineering capabilities. Comparable client types (public/enterprise) and project scale in select UK frameworks.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/swalshandsons
• Facebookfacebook.com/swalshandsons
• LinkedInlinkedin.com/company/s-walsh

Compliance9 records

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 S.Walsh & Sons