Indian family offices are stepping up as key investors in the country's startup ecosystem as foreign direct investment is declining.These family offices provide patient capital crucial for sustaining startups in sectors like deeptech and cleantech.The trend of family offices broadening investments to startups is driven by millennials seeking alternative avenues.Indian family offices offer not just funding but also strategic guidance due to their deep understanding of the market.PremjiInvest and other prominent family offices have backed successful startups like Mintifi, Lenskart, and Swiggy.Family offices invest in a wide range of sectors from technology to healthcare and focus on both early and late-stage investments.Catamaran Ventures, Aarin Capital, and Pawan Munjal Family Trust are among family offices actively investing in startups.The investment landscape is marked by diverse portfolios that display the increasing interest of family offices in supporting new-age tech ventures.While family offices are not ranked, the list aims to track their dynamic participation in the startup ecosystem and will be periodically updated.Investment firms like Spectrum Impact and Sarcha Advisors focus on impact investing and financial advisory services, respectively.