Building Industry software specialists

ACCA provides software solutions for the architecture, engineering and construction sectors.

Founded in 1989, ACCA has established a strong position in developing software solutions for the architectural, engineering and construction industries well known for ease of use, its highly creative and practical approach, its strong attitude for innovation and the ability to provide adequate answers to the growing needs of professionals. The simplicity and advanced technology that characterize ACCA’s software solutions, have revolutionized the construction industry by increasing productivity in the practices of hundreds of thousands of engineers, architects, surveyors, construction and installation companies, engineering departments, schools and universities.

  • ACCA headquarter
  • ACCA headquarter
  • ACCA headquarter
  • ACCA headquarter
  • ACCA headquarter
  • ACCA headquarter
  • ACCA headquarter
  • ACCA headquarter

A young company and this is our great advantage.

ACCA has only recently opened to the international scenario of software for the construction sectors but already has hundreds of thousands of customers around the world. A young and streamlined company bringing innovation with its software solutions capable of introducing new technologies, services and highly convenient sales systems. A company that is much younger than the old giants in the sector and in a unique condition to propose a highly professional and innovative software services and at really SMART licensing costs. Now you can be SMART too!


software sviluppati
software sviluppati
software sviluppati


  1. ACCA software is founded

    The first solutions developed for MAC OS and MS-DOS in a technical office for engineers, architects and surveyors. Software born from expertise and tested during daily work activities and needs. Since the very beginning, ACCA has been developing software created by experts of the building and construction fields… With COMET (the first version of the software which then evolved into PriMus) production and commercialization of the first Bill of Quantities and Cost Estimating software began.

  2. The birth of PriMus: and nothing was the same

    ACCA software launches PriMus for MS-DOS, the Bill of Quantitis and Cost Estimating software. The name PriMus, was chosen because it was the company’s first software and a wish for it to become a N.1 product in a still emerging market. ACCA now produces over 90 software solutions for the construction industry and PriMus is still an industry leader: a well chosen name!

  3. PriMus-Win, the first Bill of Quantities and Cost Estimating software running under Windows

    PriMus-Win was presented in Milan as the first BoQ and Cost Estimating software compatible with the for the Microsoft Windows operating system. The software was the only Italian product to be selected for the SMAU Industrial Design Award. It was probably the first Italian product (commercial) to be developed for the Windows platform. In 1995 ACCA received 1st Prize for PriMus at the Windows competition for Italy, as the best application developed for the Windows OS environment for a great company.

  4. ACCA launches TerMus

    ACCA is expanding its range year after year. In 1996 TerMus, the ACCA software for calculating and verifying the energy efficiency of buildings was launched. TerMus really was a revolutionary software, the first B.I.M. software (Building information Modeling) that addressed thermal engineering, anticipating about 15 years before others, such important design aspects that have only now become actual for others.

  5. It’s the year of CerTus

    Now famous for PriMus – used by most Italian professionals – ACCA continues relentlessly in developing new software applications for the building industry. 1998 is the year of Certus, the software for addressing the important Health and Safety issues in construction sites.

  6. Before everyone else even on the internet

    The first issue, number zero, of BibLus-net, the on-line information service and into-depth technical pubblication for the building industry professional, was released. In just a few years, it became a reference point for Italian technicians. 2003 also saw the birth of Prezzari-net, the most comprehensive on-line database of nationwide pricebooks for the building sectors which now goes proud of its over 20 million priced items for the Italian and international markets.

  7. A revolution for structural engineering and calculations too

    ACCA releases EdiLus, the first Italian BIM software for structural engineering and calculations. Advanced model input using 3D objects, the integrated FEM solver, the graphical visualization of calculation results: a true revolution for the calculation of structures.

  8. PriMus Revolution

    ACCA completely revolutionizes its flagship product with a unique initiative. The new PriMus Revolution gets a re-styled interface born from shared testing with over 15,000 PriMus clients and chosen among the most professional users of the software.

  9. ACCA crosses its national borders

    ACCA launches PriMus-DCF on the world market for the first time, the bill of quantities and cost estimating freeware. Within a few years, the software is downloaded by more than 300,000 users. PriMus-DCF is available in English, French, Spanish, German and Portuguese

  10. The Architectural BIM Design adventure begins

    ACCA unveils Edificius, the BIM software for Architectural Design that integrates architecture and engineering, at the at SAIE Building Exhibition in Bologna. The unique advantage offered by Edificius is its extreme simplicity and extraordinary ability to seamlessly integrate with other ACCA software solutions such as for structural engineering and calculations, bill of quantities, energy performance, health and safety, facility management, technical systems and plant engineering.

  11. Internationalization: new achievements and great successes

    After the online launch of PriMus-DCF, ACCA participates in some of the most prestigious international trade exhibitions ACCA is present at Ecobuild (London) and Feicon (San Paolo). New collaborations and partnerships start in Brazil, Poland, Cuba, France. ACCA’s software solutions – Edificius, PriMus and EdiLus in particular – are soon very appreciated for teaching in schools and universities.

  12. Over 90 different software solutions for the architecture, engineering and construction fields

    The ACCA software solutions are increasingly used and appreciated… In 25 years of activities, ACCA has developed solutions for a multitude of construction industry needs: architectural design, bill of quantities, structural analysis, maintenance plans and facility management, health and safety, energy efficiency, acoustics, technical systems engineering, fire prevention, renewable energy, technical studies and office management, survey management, and many more. Over 90 different solutions produced by a single company for the construction sector… A know-how that makes ACCA a unique company in the world.

  13. Edificius: the first BIM software integrated with Real Time Rendering

    The tireless and unbated development of Edificius continues with great approval and appreciation on international markets too. In 2015, integration with Real Time Rendering is a reality. Edificius has now become a mature software that has nothing to envy to other players in the sector.

  14. New ACCA software Headquarters

    A modern and sustainable architecture, in harmony with the environment and the territory. An intelligent, zero-energy building designed with people in mind and the quality of working life.

  15. ACCA software, the N°1 IFC-open BIM expert

    ACCA software launches its collaborative BIM platform, usBIM.platform and becomes a member of buildingSMART international, the organization that works worldwide for the dissemination of Open BIM and the IFC standard.
    At the end of 2018, ACCA was the company with the largest number of IFC certified BIM software in the world.


ACCA certifies its quality management system in accordance with ISO 9001:2015.
This results in having the capability to constantly improve its processes and activities in relation to customer needs and satisfaction.