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Atomistix A/S is a software company developing tools for atomic scale modelling. It is headquartered in Copenhagen, Denmark, with a subsidiary for Asia Pacific in Singapore and for the Americas in California.

Atomistix A/S
Founded2003 in Copenhagen, Denmark
HeadquartersCopenhagen, Denmark
IndustryNanotechnology software
ProductsAtomic scale modeling tools
Employees50 (2007)



The company was founded in October 2003 by Dr. Kurt Stokbro, Dr. Jeremy Taylor and Dr. Thomas Magnussen. Dr. Stokbro and Dr. Taylor are co-authors on the article [1] introducing the electron transport method and program TranSIESTA (based on the SIESTA program [2]) for academic research. This method, and methods used in Dr. Taylor Ph.D. research, was the starting point for Atomistix first product, TranSIESTA-C. The C refers to the program being written in the C programming language as opposed to Fortran in which TranSIESTA was written. This code has been completely reengineered and further developed into the commercial products marketed by the company today.

Since the very beginning the company has been working in close collaboration with the Nano-Science Center at the Niels Bohr Institute of Copenhagen University, to enhance the product development, and has instituted cooperations with leading nanotechnology centers, experts and private companies around the world.


The management team consists of:

  • Børge Witthøft, President and Chief Executive Officer (CEO).
  • Dr. Jeremy Taylor, Co-founder and Chief Technical Officer (CTO).
  • Klaus Melchior, Chief Operating Officer (COO) and Chief Financial Officer (CFO).
  • Niels Nielsen, Vice President (VP) Sales and Marketing.


Currently, Atomistix A/S provides the following products:

Legacy Products:

  • IView
  • TranSIESTA-C

These products represent a package of integrated software modules for quantum chemistry modelling, providing a user-friendly graphical interface interaction to complex computational methods.

From the usability point of view, the setup of the computation is done through Atomistix Virtual NanoLab, a metaphoric interface, mimicking in silico the approach of an experiment in a real laboratory. The underlying computational engine is the Atomistix ToolKit (ATK) which is the next generation of TranSIESTA-C. ATK also has a Python based interface NanoLanguage and a text file interface.

The methods used in the software products are based primarily on Density Functional Theory (DFT) and Non-Equilibrium Green's Function (NEGF) techniques and also all the underlying quantum mechanics.


  • [1] Brandbyge, Mozos, Ordejón, Taylor, and Stokbro. Density-functional method for non-equilibrium electron transport. Physical Review B, Vol 65, 165401 (2002)
  • [2] Soler, Artacho, Gale, García, Junquera, Ordejón, and Sánchez-Portal. The SIESTA method for ab initio order-N materials simulation. J. Phys.:Condensed Matter 14, 2745-2778 (2002)

See also

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Atomistix". A list of authors is available in Wikipedia.
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