Engineering Excellence

We are the NorthStar Engineering Firm

NEF Engineering is a company based in Tunis, Tunisia, specializing in engineering & technical management in the urban and industrial sectors.

Company Overview

Who We Are

Discover our company profile, vision, and the dedicated team that drives our engineering excellence

Logo NEF - Société de Réalisation Industrielle

About us

NEF Engineering provides a flexible, results-driven platform for executing projects, optimizing processes, and revamping installations. Our areas of expertise include urban development, public buildings (ERP), oil and gas, chemical industries, cement plants, storage facilities (oil & GPL), power generation, renewable energy, water and wastewater treatment, solid waste management, pumping stations, and pipelines.

Our Vision

The NEF Engineering Vision Statement reflects our long-term ambitions and strategic direction. It serves as a clear and unified declaration of our purpose, not only guiding our internal teams but also reinforcing our commitment to partners, clients, and stakeholders. This vision outlines where we aspire to be in the future, shaping our decisions, inspiring innovation, and driving sustainable growth as we continue to lead in engineering and technical excellence.

Our Personnel & Workflow

At NEF Engineering, our strength lies in our people. We are proud to have a dedicated team of 30 qualified professionals, strategically distributed across key engineering disciplines to ensure efficient project execution and technical excellence.

Civil & Steel40%
Mech & Piping30%
Elec & Instr10%
Process10%
Mgmt10%

This diverse distribution reflects our multidisciplinary approach and enables us to address complex engineering challenges across various sectors.

We remain committed to growing our team with additional skilled experts as project demands evolve—ensuring we always deliver the highest standard of service.

Organizational Structure

  • Managing Director: An experienced Industrial Engineer with over 15 years of industry leadership.
  • Managers, Supervisors & Department Chiefs: Senior Engineers specializing in Mechanical, Civil, and Electrical & Instrumentation, each with more than 15 years of hands-on experience.
  • Designers & Engineers: Talented professionals with 5+ years of experience in their respective fields, bringing innovation and precision to every project.

Our Services

Fields

At NEF Engineering, we offer a comprehensive range of multidisciplinary engineering and technical services tailored to meet the unique needs of each project.

Mechanical Engineering & Design

  • Pressure equipment design and 3D modelling
  • Storage tanks and silos design
  • HVAC and industrial ventilation systems
  • Utility systems and material handling solutions
  • Dry and liquid storage facility design
  • Production and process facility layouts
  • Renewable energy and environmental flow design

Civil Engineering & Design

  • Feasibility studies and site assessments
  • Master planning and concept development
  • Grading, utility, and irrigation system design
  • Specification development and as-built documentation
  • Sustainable design (LEED, Envision certification)

Electrical & Instrumentation (E&I) Engineering & Design

  • Control & Instrumentation system architecture
  • Process control logic (PCL) and P&ID development
  • Detailed engineering specifications and drawings
  • Construction cost estimation
  • Plant maintenance procedures and MOPO during construction

Structural Engineering & Design

  • Parametric, 2D/3D modelling and design validation
  • Simulation and performance analysis
  • Building Information Modelling (BIM)
  • Constructability analysis and review

FEED (Front-End Engineering Design)

  • Project execution planning and philosophy development
  • Master document register (MDR) creation
  • HAZOP and SIL safety studies
  • Equipment specifications and final plot plans
  • Data sheets, diagrams, vendor/lisensor selection
  • BOM, 3D model initiation, and instrument index

Technical & Management Services

  • Project and cost management
  • Specification development and technical support
  • Turnkey EPC project delivery
  • Procurement and logistics coordination
  • Pre-commissioning and start-up support
  • Maintenance and shutdown services
  • Sourcing and staffing solutions

BIM Integration

At NEF Engineering, we fully integrate Building Information Modeling (BIM) into our workflows to enhance collaboration, accuracy, and efficiency across every project phase — from concept to demolition.

Our BIM Platform

We utilize the Autodesk Architecture, Engineering & Construction Collection to cover all stages of BIM:

Project PhaseKey Tools
DesignAutodesk Recap Pro, AutoCAD
AnalyzeAutodesk Robot Structural Analysis, Dynamo
DetailRevit, Advance Steel, AutoCAD
CoordinateNavisworks Manage
Document & CollaborateAutodesk Docs, BIM Collaborate Pro

BIM Across the Project Lifecycle

Our BIM expertise spans all key project stages:

  • Detailed Design, Analysis & Documentation
  • Fabrication & Construction
  • Operation & Maintenance
  • Demolition & Renovation

This ensures a continuous flow of data and seamless coordination among all stakeholders.

BIM for Every Sector

Architecture

Explore ideas using detailed modeling tools. From airflow simulations to daylight analysis, BIM opens the door to more effective, innovative design outcomes.

Civil Engineering

Digitally assess site plans, optimize designs, and coordinate efficiently. BIM boosts accuracy, predictability, and stakeholder confidence through data-driven insights.

Mechanical, Electrical & Plumbing (MEP)

Use BIM to design, detail, and fabricate systems efficiently. Shared models reduce risk and allow early detection of design conflicts.

Structural Engineering

BIM enables seamless collaboration across teams, optimizing designs from structural modeling to fabrication — improving accuracy and reducing project timelines.

3D Sectors & Softwares

At NEF Engineering, we leverage a wide range of industry-standard software solutions to ensure accuracy, efficiency, and innovation across all project phases. Our digital tools are categorized by discipline and workflow, supporting everything from concept design to execution and documentation.

1. Project Management

We ensure timely delivery and efficient coordination using:

  • Microsoft Project
  • Primavera P6
  • NEF Management System

2. 3D Modeling

Advanced 3D development for plant and infrastructure:

  • AVEVA Everything3D
  • Intergraph SmartPlant3D
  • Autodesk Plant3D

3. Steel Structure Engineering

Modeling & Drawing:

  • Tekla Structures
  • Advance Steel

Structural Calculations:

  • Robot Structural Analysis
  • ANSYS Mechanical

4. Piping Engineering

Stress Analysis:

  • Caesar Pipe Stress Analysis

Isometrics & Drawings:

  • AVEVA Everything3D
  • AutoCAD Plant3D

Material Take-Offs & Alternatives:

  • Tekla Structures
  • Excel (MS Office & Custom Macros)
  • AVEVA Auto Extraction

5. Electrical Engineering

Design & Take-Off Tools:

  • EPLAN Electric P8
  • AutoCAD Electrical
  • Schneider SoMachine
  • EPLAN Auto Generation
  • Excel Custom Calculations

6. Instrumentation

  • AutoCAD P&ID
  • SmartPlant Instrumentation
  • Excel Databases (for cable schedules)

7. Lifting & Transport Analysis

  • ANSYS Mechanical
  • Robot Structural
  • ANSYS Dynamic Modules

8. Additional Engineering Documents

  • ANSYS Mechanical (Mechanical Calculations)
  • Robot Structural (Foundation & Load)
  • Excel & SmartPlant Materials (E&I Datasheets)
  • Word & Office Tools (Welding, Painting Specs)
  • AVEVA Engineering Database

Workflow-Oriented Software Support

Our digital workflow covers every stage of project delivery:

PhaseKey Software Tools
Design PhaseAVEVA Everything3D, Autodesk Plant3D
Calculation PhaseRobot Structural Analysis, Caesar Pipe
Detailed EngineeringTekla Structures, EPLAN, AutoCAD Electrical, SoMachine
Transport PhaseANSYS Mechanical, Robot Structural
Documentation PhaseAVEVA Everything3D, Tekla Structures
Our Foundation

Our Values

Our values are an integral part of the organization and act as internal drivers. They shape the way we conduct our daily business and ultimately drive our success.

Professionalism

Each of us is responsible for our words, our actions, and our results.

Efficiency

Providing our clients with cost-effective projects.

Integrity

We believe in harmonious relationships and build them through integrity and mutual respect.

Quality, Health, Safety & Environment

QHSE Policies

The principles that guide our work and define our approach to engineering excellence

Quality

Compliance with applicable laws, regulations and NEF policies is a license to operate for our contractors, suppliers and partners.

Health

NEF always works proactive in order to avoid personnel injury.

Safety

Safety is first, Safety is everything at NEF & always act when we see unsafe behaviour and conditions.

Environment

Environmental responsibility are core values at NEF and integral in all that we do.

Our Partners

Our Major Clients

Here's a brief visualization of our major clients in each sector

Oil & Gas Sector

Sonatrach
Petrofac
ENGIE
TOTAL
ABB
OMV
ARKAD
ETAP

Power Generation Sector

GAMA
STEG
TERNI
Samsung
SONELGAZ
INOMA
VOTORANTIM
Ansaldo Energia

Cement Plant Sector

Fives group
GICA
SINOMA
INTERCEM
CIMFASO
Thyssenkrupp POLYSIUS
SCB

Infrastructure & Building Sector

PASSAVANT
ONAS
COFICAB
ALHAMMAM
Ministry of Agriculture
Ministry of Equipment

BIM & 3D Design & Engineering

COMET Développement
NADA OIL
Our Portfolio

Our Projects

You can check out our projects, with their full details and images by downloading our brochure that features a full presentation of us

Company Brochure

Download our comprehensive brochure featuring detailed project portfolios, technical specifications, and visual documentation of our engineering excellence across all sectors.

Brochure Download
PDF
NEF

NorthStar Engineering Firm

Excellence in engineering solutions for urban and industrial sectors. We bring innovation, reliability and sustainability to every project.

Contact Us

Tunis, Tunisia

contact@northstar-firm.engineering

+21698721332

© 2025 NorthStar Engineering Firm. All rights reserved.