A Leading Geotechnical Engineering Company in Africa

We deliver precise geotechnical data, reports and engineering insights that reduce risks, improve design accuracy, and support successful construction projects.

Charting the Seabed. Powering Offshore Decisions.

Josan Integrated Services Limited delivers precise Hydrographic and Geospatial data that supports safe Navigation, Offshore Construction, and Marine Operation

Advanced Hydrographic & Geophysical Survey Solutions.

From Multibeam Bathymetry and Seabed mapping to Metocean data acquisition and offshore positioning, we deploy proven technology and experienced professionals to deliver reliable results.

Partner You Can Trust. Insight You Can Build On.

We support Highway Engineering and Construction Projects, Oil & Gas, Maritime, Coastal infrastructure, and Offshore Energy Projects with accurate data that reduces risk and drives informed decision-making.

Shoreline Protection

We provide effective shoreline protection services to control erosion and safeguard coastal assets through engineered solutions such as revetments, seawalls, and embankments.

A Glimpse Closer to JISL

JOSAN Integrated Services Limited (JISL) is a multidisciplinary Engineering; Geotechnical, Geophysical and Hydrographic Surveying Company delivering reliable, Technology-driven solutions across the Energy, Marine, and Infrastructure sectors.

We operate a quality and Occupational Health and Safety Management System certified to ISO 9001:2015 & ISO 45001:2018, and this further emphasize our strong commitment to Quality, Health and Safety in line with International Hydrographic Organization (IHO), COREN and NUPRC operational requirement.

Our Services

Geophysical & Geohazard Survey

We provide advanced subsurface investigations to identify geological structures, seabed conditions, and potential geohazards. Our data supports safe offshore and onshore developments, pipeline routing, and risk mitigation

Geotechnical Survey &Foundation Engineering

Our geotechnical services deliver critical soil and foundation data for marine and land-based structures. We support design and construction through in-situ testing, soil analysis, and engineering interpretation.

Highway
Engineering & Construction

We offer end-to-end highway engineering services, including route surveys, pavement design, earthworks, and construction support, ensuring durable and compliant infrastructure delivery.

Subsea Asset
Inspection

ROV and AUV-based visual and sonar inspections for monitoring pipelines, platforms, and subsea infrastructure integrity and maintenance.

Shoreline
Erosion Control

Use of geotextile mattresses filled with concrete to stabilize shorelines, adapting naturally to ground movement while maintaining structural and aesthetic integrity over time.

Jet
Grouting

Ground improvement using high-energy fluid jets to break up soil and mix it with slurry, enhancing bearing capacity and ground stability.

Commercial & Residential
Building Construction

End-to-end construction of residential and commercial buildings, covering all stages required to deliver complete, functional, and habitable spaces.

Drainage &
Bridge Construction

Design and construction of drainage systems and bridges across diverse terrains, ensuring durability, accessibility, and long-term performance.