| 1989 | The first Wärtsilä installation, with an output of 4MW, was commissioned at Gul Ahmed Textiles |
| 1994 | Wärtsilä Pakistan Private Limited was established as a local company. |
| 1995 | Branch office was established in Karachi. |
| 1997 | An integrated facility; office, workshop, warehouse and training, established at Raiwind Road Lahore. First IPP 126 MW, HFO based, combined cycle project delivered to Kohinoor Energy Ltd. Followed by 120 MW and 131 MW, simple cycle to Gul Ahmed Energy and Energy Ltd. |
| 2002 | The first fuel conversion HFO to gas + HFO delivered to Century Paper & Board Ltd. Woodward's Governor service workshop established. |
| 2004 | First gas based trigeneration plant delivered to Nishat Mills Ltd Faisalabad. it was followed by similar plants delivered to Nishat Chunian, Crescent Textile Mills. Wärtsilä Pakistan engineers take over role of supervision of installation, testing and commissioning from expatriates. |
| 2005 | First dual fuel power plant delivered to Nestle. |
| 2006 | First in Pakistan, second in the world, 16 MW dual fuel power plant delivered to DG Khan Cement Co, Kalar Kahar. it was followed by similar project with Maple Leaf Cement and Fuji Cement. |
| 2008 | 72 MW, HFO engines were successfully converted to gas + HFO operation for Lucky Cement Ltd. |
| 2009 | 165 MW, HFO based, combined cycle delivered to Attock Gen Ltd. First Large, construction Services Contract executed by company. Installed base crosses 1 GW benchmark. O&M organization for Attock mobilized. |
| 2010 | 200 MW, HFO based combined cycle delivered to Nishat Power and Nishat Chunian Power Ltd. O&M organization for these projects mobilized. |
| 2011 | 200 MW, HFO based combined cycle delivered to Liberty Power Tech Ltd. O&M organization mobilized. |
| 2018 | 90 MW First Pure Gas IPP at Sindh Nooriabad Power Co commissioned with O&M Agreement |
| 2021 | A total of 231 MW based Agreements signed with customers. |