We construct and maintain critical civil engineering infrastructure with a commitment to quality, compliance, and sustainability. We specialize in federal, state, and private sector projects, adhering to American Society of Civil Engineers (ASCE), Federal Highway Administration (FHWA), and Occupational Safety and Health Administration (OSHA) standards to ensure regulatory compliance and long-term durability.
Road Construction & Maintenance
We specialize in the construction and maintenance of federal, state, and municipal roadways to improve connectivity and economic development. Our expertise includes:
- Highway and expressway construction in compliance with FHWA and DOT regulations.
- Rural and urban road development, including asphalt, concrete, and gravel roads.
- Bridges, flyovers, and overpasses to enhance traffic flow and connectivity.
- Drainage and stormwater management systems for flood prevention.
- Road rehabilitation and resurfacing to extend pavement lifespan.
- Our compliance-driven approach ensures adherence to federal safety, engineering, and sustainability standards.


Commercial & Residential Building Projects
We supply, construct, and maintain commercial and residential infrastructure with a focus on structural integrity, energy efficiency, and modern architectural standards. Our services include:
- High-rise commercial buildings and office complexes built to LEED and Green Building Standards.
- Residential housing developments for government housing programs and private clients.
- Educational and healthcare facilities (schools, hospitals, and government buildings).
- Industrial and warehouse construction, including specialized manufacturing and logistics hubs.
- Our construction projects comply with International Building Code (IBC), ADA Accessibility Standards, and FEMA Disaster Resilience Guidelines to ensure safety, accessibility, and durability.
Infrastructure Development
NSS specializes in large-scale infrastructure projects essential for national and economic development. Our end-to-end engineering solutions include:
- Airport and seaport development to facilitate trade and logistics.
- Railway and transit infrastructure to support public transportation.
- Water supply and sanitation systems, including reservoirs, pipelines, and sewage treatment plants.
- Power transmission and renewable energy infrastructure for grid expansion.
- We integrate sustainable engineering practices and climate-resilient designs to ensure long-term infrastructure viability.
Renovation & Rehabilitation of Structures
We provide structural upgrades, modernization, and disaster recovery construction to extend the lifespan of existing buildings and infrastructure. Our services include:
- Seismic retrofitting and structural reinforcement for older buildings.
- Historic building restoration to preserve architectural heritage.
- Energy efficiency upgrades, including solar integration and insulation improvements.
- Post-disaster reconstruction following floods, earthquakes, and fires.
- Our renovation projects comply with FEMA, ASCE 7, and DOE Energy Efficiency Standards, ensuring safety, longevity, and cost-effectiveness.
Why Choose NSS for Civil Engineering & Construction?
- Regulatory Compliance & Safety Standards: We adhere to FHWA, OSHA, IBC, DOT, and FEMA regulations, ensuring all projects meet federal and state safety and engineering standards.
- Proven Expertise in Government Contracting: Our experience in infrastructure projects, public works, and large-scale government contracts makes us a preferred partner for federal, state, and municipal development programs.
- Sustainability & Resilient Engineering Solutions: We integrate climate-resilient designs, LEED-certified construction, and energy-efficient solutions into all projects to future-proof infrastructure.
- Turnkey Solutions from Construction to Maintenance: We provide end-to-end civil engineering services, from project execution to ongoing maintenance and asset management.