JB Site Investigations Ltd

What JB Site Investigations Ltd does

JB Site Investigations Ltd is a UK-based drilling contractor specializing in geotechnical and environmental site investigation services. Operating from bases in Berwick-upon-Tweed, Northumberland, with a head office in Helsby, Cheshire, the company delivers cable percussion drilling, rotary drilling, windowless sampling, dynamic probing, dynamic sampling, and SPT calibration for construction, engineering, and environmental consultancy clients. It also provides water-well construction and geothermal drilling, the latter positioning it within the UK's ground-source heat pump and renewable heating value chain. The business operates a specialized multi-rig fleet — Dando Terrier, Dando 2000 MK2, Dando 3000 MK2, Competitor 130, MI4, MI5, MI6, and MI12 — supported by more than 20 trained drilling specialists and active across the UK.

The company is a subsidiary of RSK Group Limited, one of the UK's largest environmental and sustainability consultancies, which provides cross-referral into a broad institutional client base and shared back-office support. JB Site Investigations is a member of the British Drilling Association (BDA), CECA, and AGGS, lending credibility to public and private procurement processes that require certified drilling contractors. The askJB inquiry portal and an active social media presence indicate an emerging direct digital lead-generation channel alongside traditional B2B sales outreach.

Revenue is generated through project-based contracts priced via inquiry and quote, with engagement scope and contract value tied to rig class, ground conditions, depth, and sampling requirements. No public revenue, headcount, or backlog disclosure is available, and customer concentration is implicit rather than disclosed. Growth levers are principally service-line extension (geothermal, water wells), parent-channel leverage, and UK infrastructure and net-zero capex cycles.

Name

JB Site Investigations Ltd

Legal name

JB Site Investigations Ltd

Website

https://jbsiteinvestigations.co.uk

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

JB Site Investigations Ltd is a UK drilling contractor providing geotechnical and environmental site investigation services — cable percussion, rotary, windowless sampling, dynamic probing, water-well construction, and geothermal drilling — to construction, engineering, and environmental consultancy clients via a specialized multi-rig fleet, operating as a subsidiary of RSK Group.

Ownership category

akta.pro rank

Product category

Geotechnical Site Investigation Services

NAICS

Testing Laboratories and Services (54138), Geophysical Surveying and Mapping Services (541360)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Geotechnical Investigation & Site Characterization (Boreholes, In-situ Testing, Lab Testing) (IMAFAOAG)

akta.pro secondary industries

Phase I/II Environmental Site Assessments (ESA) & Soil/Groundwater Investigations (EUAHAFAA), Brownfield Site Assessment & Remediation (BPALAKAA)

Keywords

• Geotechnical drilling services
• Site investigation services
• Cable percussion drilling
• Rotary drilling contractors
• Environmental site assessment

Headquarters

HQ city

Berwick-Upon-Tweed, Northumberland

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical Drilling Services: Project-based drilling services for site investigation including cable percussion drilling, rotary drilling, window sampling, dynamic sampling, water-well construction, and geothermal drilling. Revenue generated through contract work with construction, engineering and environmental clients requiring borehole drilling and sampling services.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

JB Site Investigations Ltd is a UK-based drilling contractor providing geotechnical and environmental site investigation services. The company operates a fleet of specialist drilling rigs and employs over 20 trained drilling specialists to deliver cable percussion drilling, rotary drilling, windowless sampling and dynamic probing, water-well construction, geothermal drilling, and in-situ testing (SPT, permeability, borehole vane, packer testing). Services are delivered as project-based contracts for construction, engineering and environmental clients throughout the UK.

Product overview

JB Site Investigations Ltd is a drilling contractor providing geotechnical and environmental site investigation services throughout the UK. The company operates a fleet of specialist drilling rigs (including Competitor 130, Dando Terrier, Dando 2000 MK2, Dando 3000 MK2, MI4, MI5, MI6, and MI12) and employs over 20 trained drilling specialists. The service portfolio includes cable percussion drilling, rotary drilling, windowless sampling and dynamic probing, water-well construction, geothermal drilling, dynamic sampling, and SPT calibration. The company is part of the RSK Group.

Differentiator

Problem solved

Functional benefit

Products and services

• Cable Percussion Drilling

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• RSK GroupcoreStrategic or Co-development PartnerJB Site Investigations is a subsidiary of RSK Group Limited, a leading environmental and sustainability consultancy. The company operates as part of the RSK Group of companies with shared resources, laboratory facilities, and corporate infrastructure. RSK Group Limited is the ultimate parent company and controller responsible for the website and data processing.

Scale indicators2 records

Expansion highlights5 records

Broad incumbents

• AECOM: Global engineering and environmental consultancy with in-house geotechnical and site investigation capabilities across the UK. A broader incumbent that frequently subcontracts specialist drilling to firms like JB.
• RSK Group Limited: Parent company and broader UK environmental and engineering consultancy platform. Provides the wider context, laboratory infrastructure and cross-sell pipeline that JB Site Investigations operates within.
• WSP: Large global consultancy with UK geotechnical and site investigation practices that occasionally procure specialist drilling services from contractors like JB, and competing in the same downstream engineering market.

Direct peers

• Ian Farmer Associates (1998) Ltd: UK geotechnical and geoenvironmental site investigation contractor offering similar cable percussion, rotary and window sampling services to construction and engineering clients.
• Geotechnical Engineering Ltd: Long-established UK site investigation contractor providing borehole drilling, sampling and in-situ testing for construction and environmental clients across the UK. Directly competes on the same core services.
• ESG Ltd: UK provider of drilling, site investigation and geotechnical services, often working as a subcontractor for environmental and engineering consultancies on similar projects.
• Structural Soils Ltd: A UK geotechnical drilling and site investigation contractor also part of the RSK Group, offering cable percussion, rotary and dynamic sampling. The closest direct peer given shared ownership and overlapping rig fleet and services.
• Lankelma: UK and international specialist in cable percussion and rotary site investigation drilling, offering restricted-access capability and a comparable rig fleet. Direct competitor on geotechnical drilling tenders.
• Soiltec Ltd: UK site investigation contractor providing geotechnical drilling, sampling and in-situ testing, comparable in scale and service mix to JB Site Investigations.

Emerging players

• Concept Engineering Consultants: Smaller UK site investigation and geotechnical consultancy offering drilling and sampling services with overlap to JB's service portfolio, but at a more limited scale.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xtwitter.com/JB_Site_Inv
• YouTubevimeo.com/rskgroup
• Facebook2343ec78a04c6ea9d80806345d31fd78-gdprlock/JB-Site-Investigations-Ltd-119903074757986
• LinkedInlinkedin.com/company/jb-site-investigations-ltd

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 JB Site Investigations Ltd