Institutional Venture Partners, a private equity firm, led a $140m Series D round in Monte Carlo, the data reliability company, with participation from Accel, GGV Capital, Redpoint Ventures, ICONIQ Growth, Salesforce Ventures, and GIC. Monte Carlo intends to use the capital infusion to continue improving experiences for its hundreds of customers, scale the data observability category to new verticals, and grow its US and EMEA go-to-market and engineering teams.