Gnomon was founded in 1994 with the vision to provide innovative and reliable IT solutions and services to the Greek market. Since its establishment, the company keeps investing in the acquisition and transfer of know-how and has established strategic co operations with global key-players, applying point technologies in highly innovative, especially for the Greek market, IT applications.

In 1995 GNOMON completed the establishment of the first system of Electronic Data Interchange (E.D.I) for a major Door and Window manufacturer (DORAL S.A) in Northern Greece.

In 1997 it developed an integrated Information System of energy saving. The project received the Prize for the Best Industrial

Application of Energy Saving for 1999, by the Centre of Recoverable Sources of Energy.

In 2002 GNOMON signed an agreement for the participation of the ALPHA TRUST INNOVATION S.A.venture capital  in its equity capital.

In 2003 GNOMON was certified with ISO 9001:2000 Quality Assurance for its services.

In 2004 GNOMON has undertaken along with INTRACOM SA the project TECHNICAL ASSISTANCE TO PUBLIC ADMINISTRATION REFORM – JUDICIAL ADMINISTRATION in FYR of Macedonia, a 1.3M euro budget project.

Since 2004 Gnomon invested heavily in web-based technologies leading to the development of gi9,its flagship product,  an open source based  J2EE enterprise platform.
In 2006 the company opened its Athens office and in 2009 established its presence in the Cyprus market founding GNOMON Informatics (Cyprus) Ltd.