Precision Inspection for a Safer, More Reliable Industry
De Sunkalt Interbiz Services Ltd. provides world-class non-destructive testing, inspection, and calibration services to the Oil & Gas and Manufacturing sectors.
Who We are
We are your trusted partner in industrial inspection & testing
De Sunkalt Interbiz Services Ltd is a leading indigenous inspection company providing comprehensive Non-Destructive Testing, Statutory Inspection, and Calibration services to Nigeria’s Oil & Gas and Manufacturing sectors.
With our team of internationally certified professionals and state-of-the-art equipment, we deliver precise, reliable results that ensure your assets operate safely, efficiently, and in full regulatory compliance.
We are committed to protecting your investments while maintaining the highest standards of quality and safety.
Our Core Services
Delivering precision and reliability across the oil & gas and manufacturing sectors.
Non-Destructive Testing
Comprehensive flaw detection using Ultrasonic, Radiographic, Magnetic Particle, and Dye Penetrant methods to ensure material integrity without damage.
Statutory Inspection & Certification
Mandatory inspections and certifications for steam boilers, pressure vessels, lifting equipment, and offshore containers to ensure regulatory compliance.
Integrity & Fitness-for-Service
Proactive integrity assessments for storage tanks, pipelines, and pressure equipment to prevent failures and extend asset lifecycle.
Quality Assurance & Control
End-to-end quality management including failure analysis, statistical process control, and welding procedure qualification.
Calibration Services
NMDPRA-approved calibration of underground and above-ground storage tanks for accurate inventory management and custody transfer.
Pressure Testing & Leak Detection
Specialized pressure testing and leak detection services for pipelines and vessels to ensure operational safety and integrity.
Why Partner with De Sunkalt Interbiz?
Delivering Precision, Safety, and Trust in Every Project
Unwavering Commitment to HSE
Safety is our core value. We operate under a robust Health, Safety, and Environment (HSE) policy, rigorously identifying and mitigating risks to ensure a zero-harm environment.
Full Regulatory Compliance & Permits
We hold all necessary permits from the Nigerian Midstream and Downstream Petroleum Regulatory Authority (NMDPRA), covering NDT, calibration, and pressure testing.
Proven Track Record with Industry Leaders
We have successfully completed projects for a diverse portfolio of leading companies, including Dangote, Shell (SPDC), Nigerian Bottling Company, and Nestlé.
State-of-the-Art Technology
We invest in modern, calibrated equipment to deliver precise and reliable data in accordance with both international standards and specific client specifications.
Client-Centric & Results-Driven
Our mission is your satisfaction. We are committed to delivering quality, efficient, and prompt services, building long-term partnerships based on trust and exceptional results.
Internationally Certified Expertise
Our team is certified to ASNT Level II & III, PCN Level II & III, CWI, and LEEA standards. We bring a global benchmark of quality and technical proficiency to every project, ensuring results you can trust.
by the numbers
Delivering Excellence Through Quantifiable Results
Year of Combined Experience
Projects Completed
Client Satisfaction Rate
Active NMDPRA Permits
TRUSTED BY INDUSTRY LEADERS
Delivering precision and reliability across the oil & gas and manufacturing sectors.
Our Uncompromising Commitment to HSE
Zero Tolerance for Safety Violations
At De Sunkalt Interbiz, safety is our foundation. We operate on a Zero Tolerance policy for drugs, alcohol, and safety violations to ensure the highest protection for our people, your assets, and the environment. Our comprehensive HSE management system integrates international standards with proactive risk mitigation.
Key Policy Highlights:
- Zero Tolerance Drug & Alcohol Policy
- Proactive Risk Assessment & Management
- Continuous HSE Training & Competence
- Environmental Stewardship & Compliance
- Regular Safety Audits & Performance Monitoring
