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Leading Innovators in Cost Estimating

Nomitech offers solutions for large projects in Construction, Oil & Gas, Mining, Energy, and Nuclear sectors across 60+ countries.


Years in the Industry


Satisfied Customers


Licenses sold

2 Trillion+

Total Worth of Projects Estimated

Stay Ahead of The Industry Curve

Revolutionizing Industries with Innovative Tech

Our team's global experience in cost estimating, innovation, and product development ensures precise cost forecasting and environmental assessment for optimal project outcomes, with a pinpointed focus on seamless system implementation.


Years in the Industry


Satisfied Customers


Licenses sold

2 Trillion+

Total Worth of Projects Estimated

our core values

Building a Strong Foundation for Your Lasting Success

Our values form the bedrock of our organization, guide us as we strive to deliver exceptional software solutions that empower construction professionals to build with confidence and precision.

Innovation & Adaptability

Nomitech is a forward-thinking company dedicated to driving innovation by investing in and incorporating modern technologies like AI, VR, and BIM into its products through extensive research & development

Integrity & Transparency

We uphold the highest ethical standards, our clients can trust us to deliver what we promise, and we are always open to feedback and suggestions to improve our products and services further.

Sustainability & Social Responsibility

We are committed to creating solutions that support environmentally conscious decision-making, and take pride in supporting causes that promote education, equality, and environmental conservation.

Reliability & Performance

Our solutions are built to withstand the rigors of the construction environment, ensure seamless operations, minimize downtime and deliver results, no matter the scale or complexity of the project.

Customer Centricity

Our clients are at the heart of everything we do. We listen intently to their needs, challenges, and aspirations, ensuring that our software is not only feature-rich but also intuitive and user-friendly.

Collaboration & Empowerment

We actively engage with our clients to understand their workflows and challenges. By working together, we co-create solutions that empower construction professionals to excel in their endeavors.

Proven track record

Transforming Brands Across the Globe

Nomitech is scaling the estimating processes and innovating digital transformations for some of the largest companies in the world:

Discover Nomitech,
Pioneers Software Innovation

As a leading software firm specializing in advanced Cost Estimating solutions, our experienced team of engineers delivers groundbreaking and practical software that sets a new industry standard for future estimating


Working with the biggest clients in the World

  • NEWMONT - The world’s top mining company
  • High Speed 2 - Europe’s biggest high speed rail project currently in execution
  • UK Power Networks - Europe’s largest metropolitan area Electricity Operator
  • Lithko - North America’s largest self-perform concrete subcontractor
  • SAIPEM - Italy’s biggest contractor
  • Hanwha - One of South Korea’s top 5 contractors
  • Saudi Aramco - World’s biggest oil and gas company
  • EDF Energy - World’s biggest nuclear company
  • NEOM - World's biggest mega city/ Mega project currently in execution


Building Trust through Strong Partnerships

We foster robust partnerships with each customer, cultivating mutual trust, and ensuring optimal utilization of our capabilities to extract maximal value from their investment in our solutions. Renowned software giants like Oracle have endorsed our proficiency, designating CostOS as their preferred partner solution for Construction, EPC, and Oil & Gas sectors on a global scale.


Elevating Your Security Standards

At Nomitech, we take your data security seriously. That's why we are proud to hold the ISO 27001 Information Security Management Certification. This prestigious certification reflects our unwavering commitment to safeguarding your sensitive information. By partnering with us, you not only gain access to cutting-edge solutions but also benefit from the highest levels of security and confidentiality.


Nomitech’s Transformative Solutions

Nomitech offers a comprehensive suite of cutting-edge solutions designed to revolutionize cost estimation and project management across diverse industries.

With products like CostOS, BIMCT, CellBIM and CosMO, Nomitech empowers organizations to streamline estimating processes, leverage BIM technologies, and enhance cost modeling and benchmarking capabilities. These tools are tailored to meet the evolving demands of sectors like construction, energy, mining, and nuclear, ensuring precision, efficiency, and informed decision-making throughout project lifecycles.


Revolutionizing your industry

Nomitech offers specialized solutions for major industry sectors, helping businesses accurately estimate costs, assess environmental impacts, and optimize project outcomes.

  • Construction Industry
  • Oil & Gas Industry
  • Nuclear Industry
  • EPC/Utilities Industry
  • Mining Industry

Serving Industries Since 2007

Meet our CEO
Tolis Chatzisymeon

In the world of cost estimating and BIM software, few names resonate as profoundly as Tolis Chatzisymeon, the co-founder and CEO of Nomitech. His journey, marked by innovation and leadership, has significantly influenced the construction industry globally.

1995- 2001: A Pathway to Innovation

Educational Foundations

Tolis's story begins with his solid educational background. He graduated with a Diploma in Civil Engineering from the National Technical University of Athens with Structural Engineering specialty, a cornerstone for his future endeavors. Furthering his expertise, he obtained an MSc in Construction Engineering and Project Management from the University of Texas at Austin, where he conducted a thesis in the worldwide Cost Estimating Software Market and defining a Methodology for selecting a suitable Estimating platform. These academic pursuits laid the groundwork for a career defined by innovation and excellence.

2001: Professional Odyssey

From Global Experience to Entrepreneurial Triumph

Tolis's professional path is as diverse as it is impressive. He honed his skills with international giants like Balfour Beatty and J&P, gaining invaluable global exposure. His leadership skills shone brightly as he led a construction SME, successfully delivering projects across various sectors.

2007: An Innovative Idea

The Birth and Rise of Nomitech

In 2007, Tolis co-founded Nomitech, a decision that marked a new era in cost estimating and BIM software. Under his guidance, Nomitech developed CostOS, an advanced Estimating Enterprise Application, and made significant strides in BIM, Parametric Estimating Approaches and big data, also leveraging AI and Machine Learning to revolutionize the construction industry.

2018: AACE & ICMS Standard Setting Committee

A Voice in Global Standards and Practices

Tolis is not just a business leader; he is a thought leader. As President of the AACE in Greece and Cyprus, and a member of the ICMS Standard Setting Committee, he plays a pivotal role in shaping global standards in cost and carbon reporting. His contributions to the AACE's Recommended Practice for the Nuclear Sector underscore his expertise and commitment to industry advancements. Tolis has also written many publications, sharing groundbreaking insights and best practices instrumental in advancing cost engineering and project management.

2024: A global Force

Nomitech Today

Under the insightful leadership of Tolis, Nomitech has evolved into a global powerhouse, engaging in substantial mega-projects worldwide and catering to a distinguished clientele that includes major industry leaders and multinational corporations across various sectors. The company's dedication to R&D, particularly in BIM, AI and big data, positions it at the forefront of the industry.

Publications by Nomitech's Leading Experts