The ongoing Iran war has put capex investment of at least 800 small and medium companies at risk. These companies had cumulatively invested $1.3 billion in the United Arab Emirates (UAE) in the last six months, data compiled by Moneycontrol showed. The impact would be high on companies from the retail and hospitality sector where 280 Indian companies had invested about $400 million, the Overseas Direct Investment(ODI) data of the Reserve Bank of India (RBI) showed. The development assumes significance as in the last two years UAE has emerged as the second largest ODI destination for Indian companies after the US.