The event is being organised by the state government in association with the Confederation of Indian Industry.
The first "Happening Haryana Global Investors Summit-2016" will begin in Gurgaon today, which will see participation from 12 countries.
The two-day summit will be inaugurated by Union Finance Minister Arun Jaitley.
Haryana government has set a target to attract investments to the tune of Rs 4.25 lakh crores.
The summit comes close on the heels of Jat quota agitation in the state in which 30 people were killed and property worth Rs 35,000 crore was destroyed.
Prior to the two-day investors' meet, Chief Minister Manohar Lal Khattar said entrepreneurs had assured him of their keenness in investing in the state.
China, Czech Republic, Japan, Malawi, Mauritius, New Zealand, South Korea, Peru, Poland, Spain, Britain and Tunisia will participate as partner countries.
The event is being organised by the state government in association with the Confederation of Indian Industry.