About us

ISMAR’s dynamism is rooted in a substantial and consistent entrepreneurial history. Today we are ready to put our ability to transform complexity into opportunity at the service of our clients, with the solidity of our past and a vision of the future.

ISMAR is a construction company based in Rome, founded in 2024 as the natural evolution of over thirty years of experience in the sector.

Our strength lies in continuity: same values, same team of professionals, new perspectives. Today, ISMAR is a reliable partner for companies and institutions seeking a single point of contact capable of managing complex projects from start to finish, combining technical excellence, organization, and innovation.

Our Mission

Creating shared and lasting value by enhancing and investing in people, innovation, and respect for the environment. For us, every project is an opportunity to build sustainable, safe, and high-quality solutions that have a positive impact on the community.

Our Vision


To become a benchmark in the plant engineering and construction sectors, distinguishing ourselves through:

  • reliable delivery,
  • innovation in methods and materials,
  • sustainability as a concrete approach,
  • ability to address and resolve complexities.

Our strengths

  • Complexity Management: we specialize in coordinating multidisciplinary activities, optimizing time and resources;
  • Over thirty years of experience: a consolidated background in Italy and abroad;
  • Flexibility: a streamlined structure capable of adapting to projects of varying scale;
  • Business Network: promoters of “Collaborate and Grow,” which unites 6 companies, 140 collaborators, and over €21 million in total revenue.

First operating year

1.6 M €

Sales

18

Direct collaborators

5

Vehicles

2026 Goals

5.6 M €

Sales

34

Direct collaborators

12

Vehicles

Business’ Network Goals

The “Collaborate and Grow” network has been expanded to include 14 companies and a total turnover of €58 million.

ISMAR is not just a young company, but the result of a long and consistent entrepreneurial history.

ISMAR is not just a young company, but the result of a long and consistent entrepreneurial history. Today we are ready to put our ability to transform complexity into opportunity at the service of our clients, with the solidity of our past and a vision of the future.


Why choose ISMAR

LEADERSHIP

Single point of contact for complex projects.

COMPETENCE

Consolidated skills and a team with over 30 years of experience.

RELIABILITY

Respect for deadlines, quality and safety.

INNOVATION AND SUSTAINABILITY

Solutions aligned with new market needs.

SHARED VALUE

Each project contributes to the development of the people who collaborate on it and of the community.

Key figures

ORAZIO BIZZARRI

Technical Director 

Founder and Chief Executive Officer of Sitai s.r.l, with over thirty years of entrepreneurial experience in construction, building works and plant engineering. General contractor for  complex activities in the field of new  construction, renovation and maintenance  of commercial, tertiary and industrial  structures, both public and private. 
Orazio Bizzarri has over ten years’  experience in Central and North America  in the development of construction and  plant engineering projects. 

ANGELO MAMMUCARI

Chief Executive

Partner of Sitai s.r.l, with experience gained in various companies in the design, construction and plant engineering sector. Thirty years of experience as Technical Manager; Resource Management Manager; Purchasing and Technical Office Manager; Project Manager. Solid expertise in managing complex projects  with skills in analysis, design, management and verification of interdisciplinary projects, collaboration and results-oriented teamwork. Strong expertise in managing various clients, both public and private, particularly  in the commercial, executive and institutional sectors.

SABRINA MARIA CARZEDDA

Responsabile amministrazione, ufficio gare

Former General Manager of a building system company. She has extensive experience in tender management, coordinating various departments (HR, administration, fleet management), and overseeing certifications (ISO, SA8000). Previously, she held export and incoming manager roles and worked as a secretary in an international law firm.

AMBRA BIZZARRI

Head of Marketing and Business Development

Business development and marketing professional in the construction and plant engineering sector, experienced in market analysis, business growth, and strategic partnerships. Specialized in promoting high value-added technical solutions. Skilled at bridging technical and strategic areas to drive business growth. Expertise in marketing strategy, communication, and client management.