How We Got Here
Our History
Key Yazılım Çözümleri A.Ş. was founded in Ankara in 2004 and has always embraced a boutique service approach in web-based software development. Today, it continues its journey as a corporate software company serving two-thirds of Turkey's large and mid-sized banks.
We Research & Develop
We conduct more than 10 R&D projects as defined in R&D frameworks. Since 2009, we continue our R&D work in Ankara Technology Development Zone (Bilkent Cyberpark).
Our Business Model
We develop e-business software for more than 100 corporate customers in a B2B business model, operating most of them as SaaS services. We are one of Turkey's leading firms in enterprise software development with PHP.
How We Grew
Milestones
From 2004 to today, we grew by continuously improving our solutions.
2026
PROPEX — Integrated Sales Process Application launched
2025
INVEXUS.AI Project development started
Java single-codebase project codenamed "INVEX-BONE" for INVEX-B started development
INVEX Mobile Application launched
2024
INVEX-B Review Module launched
INVEX-D Version 4 released
2023
PROPEX — 360 Module launched
PROPEX — TAKBİS GW Module launched
2022
INVEX-B Java-React application launched
2021
HYPOTEX — e-Mortgage Module launched
INVEX-B e-Invoice integration launched
2020
HYPOTEX — e-Lien Module launched
2019
PROPEX — Listing Module launched
2018
PROPEX — Sales Module launched
Company name changed to Key Yazılım Çözümleri A.Ş.
2017
Digital signature adoption started in INVEX-D application
INVEX-D Version 3 released
2016
SIGNEX — Digital Signature System commercialized
PROPEX application launched
INVEX-D Version 2 released
2015
PROPEX — Asset Management System commercialized
Digital signature adoption started in INVEX-B application
HYPOTEX — TAKBİS integration provided
2014
First Java-based INVEX-B application launched
INVEX-B — TAKBİS integration provided
2013
INVEX Mobile application launched
2012
First use of HYPOTEX application in banking sector
2011
HYPOTEX — Mortgage Information System commercialized
INFOREX ERP and Official Accounting modules launched
INVEX-B transformed to n-tier architecture
2010
First use of INVEX-B application in banking sector
Accepted into Bilkent Cyberpark
2009
First use of INVEX-D application in valuation firms
First software export
2008
First software export achieved with CRM application
2007
CRM application adapted as multilingual
INVEX — Valuation Information System commercialized
2006
First DMS application developed
2005
First e-Commerce application developed
2004
First CMS and CRM applications developed
INFOREX — General Information Management System commercialized