Built to impress
Onac Integrated Services
About Us
Onac Integrated Services Limited is a trusted Nigerian engineering and construction company providing comprehensive consultancy, project management, and construction solutions. We deliver quality, innovation, and excellence in every project, ensuring our clients’ visions become lasting, sustainable realities.
Build Your Dream
15 Years Of Undefeated Success
We Turn Ideas Into Structures That Serve Generations
At Onac Integrated Services, we combine practical experience with innovative thinking to deliver engineering and consultancy solutions that solve real problems. Whether it’s structural design, water systems, or facility upgrades, our work is guided by precision, integrity, and long-term impact. Let’s build something that lasts.
200+
Successfully Project Finished.
15+
Years of experience with proud
500+
Revenue in 2020 investment
520+
Colleagues & counting more daily
Build Your Dream
Quality Services
Civil Engineering Construction
Roads, bridges, and infrastructure projects.
Project Management
Planning, scheduling, and supervising construction works.
Structural Design & Consultancy
Architectural and structural engineering solutions.
Geotechnical Investigations
Soil testing and foundation recommendations.
Environmental Impact Assessment
Ensuring projects meet regulatory and environmental standards.
Water Supply& Drainage Systems
Design and installation of efficient water distribution and drainage networks.
We Follow Best Practices
Building with Purpose, Delivering with Precision
At Onac Integrated Services , we don’t just design systems or structures — we craft reliable solutions that stand the test of time. With over 15 years of experience, we remain committed to excellence, innovation, and client satisfaction across every project.
- Sustainablility
- Project On Time
- Modern Technology
- Latest Designs
About Founders
We Are A Leading Engineering And Consultancy Company In Africa
Tomilayo Onafowokan
CEO
Onafowokan Simileoluwa
CTO
Tolulope Onafowokan
COO
About Founders
Our Latest Works
Science Lab Building
Long Gate Bridge
Enix Lawyer Building
ABEOKUTA, OGUN STATE.
Deep Sea Bridge
LISABI ROAD, IDI-ABA.
What Our Partners Say
Testimonials
Client, Estate Developer (Lagos)
Akintayo Blessing
Working with this team was one of the best decisions we made on our residential estate project. Their structural insights and attention to detail helped us avoid costly errors. They don’t just build—they guide you like partners.
Lead Architect, UrbanForm Design Studio (Partner Firm)
Nwoga A.A
Collaborating with this company on complex structural projects has been seamless. Their technical precision and project management skills consistently enhance the success of our designs. It’s rare to find a team this dependable.
Government Consultant Partner (Ogun State)
DOMINIQUE
This firm brings a deep understanding of local realities and still upholds international standards. Their consultancy on our public infrastructure projects improved planning, reduced waste, and built trust with stakeholders.
Former Project Engineer, Internally
Ejike Cherish
As part of the engineering team for over 5 years, I witnessed first-hand how the company balances innovation with hands-on problem-solving. It’s not just about work—it’s about delivering quality that speaks for itself."
Request a Quote
