NSG Engineering builds success with Sesam software

When NSG Engineering started up in Brazil more than a decade ago, the founders rapidly brought in DNV's Sesam software for structural analysis of fixed and floating structures to provide the basis for their exceptionally wide range of services, helping them deliver more cost-effective services.

Since NSG Engineering was founded, the innovative company has led projects involving pioneering solutions in infrastructure for the offshore industry, dedicated to creating pathways that combine safety, efficiency, and sustainability in maritime, offshore, and subsea engineering.

Growth based on the most versatile solution

When starting the company, Aidin Sarabi, NSG's Director, had more than a decade of experience in providing engineering services for the oil and gas and renewables industries. In his previous company he had been using software that would not meet their new needs. With Victor Barbosa NSG's Engineering Manager, they began to look for what would be the best software for their engineers.

“Our primary analysis tool had reached its limitations, particularly when dealing with pushover analyses, floating structures, and offshore wind projects,” says Aidin, the Director of NSG Engineering. “The need for constant workarounds made it clear that we were hitting a ceiling,” he says.

Based on that experience, they were determined to start off on the right foot. The engineers knew they needed one software package that could take care of their main needs, one that could perform non-linear pushover analyses, both for fixed and floating structures, and one that could be used not only for design, but also for life extension.

“We started with internal benchmarking,” says Aidin. “We started talking to clients. In some of our project work outside of Brazil, we were working with people who had come from BP and Atkins Engineering. They spoke very highly of DNV, and about Sesam software specifically. They knew the benefits.”

“From day one at NSG, we adopted Sesam as our primary structural analysis suite, ensuring we had a robust, future-ready platform to support our ambitions,” says Aidin.

Aidin is working on building a lean, high-performance engineering firm. His focus is on strategic growth, technology adoption, and expanding operations both in Brazil and internationally. 

NSG Engineering colleagues

Aidin Sarabi, Director, NSG Engineering and Victor Barbosa, Manager, NSG Engineering

Aidin Sarabi

With Sesam, we’re able to work faster and more efficiently, achieving smarter and more reliable designs — and we've reduced our engineering hours by 35%.

  • Aidin Sarabi
  • Director
  • NSG Engineering

Intelligent and cost-effective

With Sesam, the engineers are able to work on their mission: providing intelligent, cost-effective, and safe engineering solutions for complex market challenges in the maritime, offshore and subsea industries.

“Sesam integrates seamlessly into our workflows,” says Aidin. “It minimizes manual processes, and helps us deliver faster, smarter and more robust designs at a lower cost. We cut engineering manhours by up to 35 percent by using Sesam.”

“Sesam is incredibly versatile. We use it for life extension of jacket structures and FPSOs, as well as the design of offshore wind substations, FPSO modules, and more. We’ve even applied it to non-traditional projects, like designing stadium roofs for the FIFA World Cup and the Rio Olympics. It’s rare to find a single platform that delivers this level of depth, flexibility, and reliability across such a wide range of applications,” says Aidin.

Aidin is impressed at the levels of software support he receives from the Sesam support team at DNV, who answers promptly, solving complex issues efficiently. When NSG was working on the Olympic stadium, Aidin flew to Norway to work alongside Sesam developers, as the DNV team of Sesam developers were adding capabilities. The roof of the Olympic stadium was a much bigger structure than an offshore structure, and Sesam’s Usfos tool was enhanced for its linear verification, which was done along with Sesam Genie.

“That kind of support is unheard of for us. Sesam performed beautifully,” says Aidin.

About NSG Engineering

NSG is a specialized engineering company formed by a select group of highly qualified professionals with exceptional national and international experience. Since its founding in 2010, NSG has delivered pioneering infrastructure solutions for the offshore industry, combining safety, efficiency, and sustainability across naval, offshore, and subsea engineering. Passionate about tackling complex challenges, NSG takes pride in the reputation it has built by consistently delivering excellence to the industry.

Profile

Customer name: NSG Engineering  

Web address: nsgeng.com

Market: Engineering for oil & gas, naval and offshore wind  

Employees: 42

Solution/product: Sesam

Customer feedback

This is why we chose Sesam: 

  • Wide range of capabilities, from FPSO modules to offshore wind – a one-stop solution for evolving needs 
  • Superior support of both fixed and floating offshore structures 
  • Specific software for life extensions using pushover analysis 
  • Scalable solution aligned with growth into renewables and international markets

This is what we gained:

  • Up to 35% reduction in engineering hours on complex structural assessments 
  • Increased team efficiency with fewer rework loops and cleaner reporting 
  • Enhanced quality and consistency across diverse offshore projects 
  • Future-ready support to NSG’s expansion into Europe and offshore wind 

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