Our Mission


COSTA strives to be a leading Institution in bridging skills gap in Rwanda and the region by offering cutting edge solutions to workforce development


To develop quality and credible workforce for Rwanda and the rest of the region to meet tomorrow’s labour market through technical training and provision of technical systems solutions.


  • High Integrity
  • Transparency and Accountability
  • Excellent customer service
  • High ethical standards and best practices
  • Innovation
  • Relevance
Contact Info
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Corner Stone Africa
Africa Union Road (Opposite Alpha Palace Hotel),
Kisementi Cell - Gasabo District
Phone: (250)788302477
P.O.Box: 1918 Kigali
We have moved Cornerstone Africa (COSTA) Head Office has moved from Solas Building to Africa Union Road (Opposite Alpha Palace Hotel), Remera Sector, Gasabo District.

According to its Managing Director, Mr. Joshua Mbaraga, COSTA move is meant to create more visibility for the company and also be strategically co-located with their Training Institute that will soon be commissioned on the same block..